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{{#Wiki_filter:Chapter 3 - Design of Structures, Systems, and Components | {{#Wiki_filter:Chapter 3 - Design of Structures, Systems, and Components Table of Contents | ||
CHAPTER 3 | |||
DESIGN OF STRUCTURES, SYSTEMS, AND COMPONENTS | |||
TABLE OF CONTENTS | |||
Section Tit le Page | |||
3.1 DESIGN CRITERIA.............................................................................................. 3.1-1 | |||
3.2 METEOROLOGICAL DAMAGE........................................................................... 3.2-1 | |||
3.2.1 WIND LOADING................................................................................. 3.2-1 | |||
3.2.2 TORNADO LOADING........................................................................ 3.2-2 | |||
3.2.3 SNOW, ICE, AND RAIN LOADING.................................................... 3.2-3 | |||
3.3 WATER DAMAGE................................................................................................ 3.3-1 | |||
DESIGN CRITERIA | 3.3.1 FLOOD PROTECTION....................................................................... 3.3-1 | ||
3.3.2 STRUCTURAL DESIGN FOR FLOODING........................................ 3.3-3 | |||
3.4 SEISMIC DAMAGE.............................................................................................. 3.4-1 | |||
3.4.1 SEISMIC INPUT................................................................................. 3.4-3 | |||
3.4.2 SEISMIC ANALYSIS OF FACILITY STRUCTURES.......................... 3.4-4 | |||
3.4.3 SEISMIC CLASSIFICATION AND QUALIFICATION....................... 3.4-12 | |||
3.4.4 SEISMIC INSTRUMENTATION....................................................... 3.4-15 | |||
3.4.5 SEISMIC ENVELOPE DESIGN FOR EXTERNAL HAZARDS......... 3.4-15 | |||
3.5 SYSTEMS AND COMPONENTS......................................................................... 3.5-1 | |||
3.6 NITROGEN PURGE SYSTEM STRUCTURE...................................................... 3.6-1 | |||
3.6.1 METEOROLOGICAL DAMAGE......................................................... 3.6-1 | |||
3.6.2 WATER DAMAGE.............................................................................. 3.6-1 | |||
3.6.3 SEISMIC DAMAGE............................................................................ 3.6-2 | |||
==3.7 REFERENCES== | |||
..................................................................................................... 3.7-1 | |||
SHINE Medical Technologies 3-i Rev. 1 Chapter 3 - Design of Structures, Systems, and Components List of Tables | |||
LIST OF TABLES Number Tit le | |||
3.1-1 Safety-Related Structures, Systems, and Components | |||
3.1-2 Nonsafety-Related Structures, Systems, and Components | |||
3.1-3 SHINE Design Criteria | |||
3.4-1 Seismic Classification of Structures, Systems, and Components | |||
SHINE Medical Technologies 3-ii Rev. 0 Chapter 3 - Design of Structures, Systems, and Components List of Figures | |||
LIST OF FIGURES Number Tit le | |||
3.4-1 View Looking Southwest of the Representative Concrete Sections | |||
3.4-2 Cross Section of Structural Model | |||
3.4-3 Selected Response Spectra, Exterior Locations (Looking Southeast) | |||
3.4-4 Selected Response Spectra, Exterior Locations (Looking Northwest) | |||
3.4-5 Selected Response Spectra Locations At Grade Slab | |||
3.4-6 Selected Response Spectra Locations Below Grade Slab | |||
3.4-7 Building Envelope Openings Evaluated as Missile Barriers | |||
SHINE Medical Technologies 3-iii Rev. 0 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations | |||
ACRONYMS AND ABBREVIATIONS | |||
Acronym/Abbreviation Definition | |||
ACI American Concrete Institute | |||
AISC American Institute of Steel Construction | |||
ANSI American National Standards Institute | |||
ASCE American Society of Civil Engineers | |||
ASME American Society of Mechanical Engineers | |||
BE best estimate | |||
CAAS criticality accident alarm system | |||
CAMS continuous air monitoring system | |||
cm centimeter | |||
DOE U.S. Department of Energy | |||
E/W east-west | |||
ELTG emergency lighting system | |||
ESFAS engineered safety features actuation system | |||
FACS facility access control system | |||
FCHS facility chilled water system | |||
FCRS facility chemical reagent system | |||
SHINE Medical Technologies 3-iv Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations | |||
ACRONYMS AND ABBREVIATIONS | |||
Acronym/Abbreviation Definition | |||
FDCS facility data and communications system | |||
FDWS facility demineralized water system | |||
FFPS facility fire detection and suppression system | |||
FGLP facility grounding and lightning protection system | |||
FHWS facility heating water system | |||
FNHS facility nitrogen handling system | |||
FPWS facility potable water system | |||
FSDS facility sanitary drains system | |||
FSTR facility structure | |||
ft. feet | |||
ft2 square feet | |||
ft3 cubic feet | |||
FVZ4 facility ventilation zone 4 | |||
HCFD hot cell fire detection and suppression system | |||
HVAC heating, ventilation, and air conditioning | |||
Hz hertz | |||
SHINE Medical Technologies 3-v Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations | |||
ACRONYMS AND ABBREVIATIONS | |||
Acronym/Abbreviation Definition | |||
IAEA International Atomic Energy Agency | |||
ICBS irradiation cell biological shield | |||
IEEE Institute of Electrical and Electronics Engineers | |||
IF irradiation facility | |||
in. inch | |||
ISRS in-structure response spectra | |||
IU irradiation unit | |||
IXP iodine and xenon purification and packaging | |||
kg/m3 kilogram per cubic meter | |||
kPa kilopascal | |||
kph kilometers per hour | |||
LABS quality control and analytical testing laboratories | |||
LB lower bound | |||
lb/ft2 pounds per square foot | |||
lb/ft3 pounds per cubic foot | |||
LWPS light water pool system | |||
SHINE Medical Technologies 3-vi Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations | |||
ACRONYMS AND ABBREVIATIONS | |||
Acronym/Abbreviation Definition | |||
m meter | |||
m3 cubic meter | |||
m/s meters per second | |||
MEPS molybdenum extraction and purification system | |||
MHS material handling system | |||
MIPS molybdenum isotope product packaging system | |||
mph miles per hour | |||
N/S north-south | |||
N2PS nitrogen gas purge system | |||
NDAS neutron driver assembly system | |||
NFDS neutron flux detection system | |||
NFPA National Fire Protection Association | |||
NPSS normal electrical power supply system | |||
NSC NDAS service cell | |||
PCHS process chilled water system | |||
PCLS primary closed loop cooling system | |||
SHINE Medical Technologies 3-vii Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations | |||
ACRONYMS AND ABBREVIATIONS | |||
Acronym/Abbreviation Definition | |||
PFBS production facility biological shield system | |||
PGA peak ground acceleration | |||
PICS process integrated control system | |||
PMF probable maximum flood | |||
psf pounds per square foot | |||
psi pounds per square inch | |||
PVVS process vessel vent system | |||
QME qualification of active mechanical equipment | |||
RAMS radiation area monitoring system | |||
RCA radiologically controlled area | |||
RDS radioactive drain system | |||
RLWI radioactive liquid waste immobilization | |||
RLWS radioactive liquid waste storage | |||
RPCS radioisotope process facility cooling system | |||
RPF radioisotope production facility | |||
RRS required response spectrum | |||
SHINE Medical Technologies 3-viii Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations | |||
ACRONYMS AND ABBREVIATIONS | |||
Acronym/Abbreviation Definition | |||
RVZ1 radiological ventilation system zone 1 | |||
RVZ2 radiological ventilation system zone 2 | |||
RVZ3 radiological ventilation system zone 3 | |||
SCAS subcritical assembly system | |||
SGS standby generator system | |||
SRMS stack release monitoring system | |||
SRP Standard Review Plan for the Review of Safety Analysis for Nuclear Power Plants | |||
SRSS square root of the sum of the squares | |||
SRWP solid radioactive waste packaging | |||
SSC structure, system, or component | |||
SSE safe shutdown earthquake | |||
SSI soil-structure interaction | |||
SWRA Southern Wisconsin Regional Airport | |||
TEDE total effective dose equivalent | |||
TOGS TSV off-gas system | |||
TPS tritium purification system | |||
SHINE Medical Technologies 3-ix Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations | |||
ACRONYMS AND ABBREVIATIONS | |||
Acronym/Abbreviation Definition | |||
TRPS TSV reactivity protection system | |||
TSPS target solution preparation system | |||
TSSS target solution staging system | |||
TSV target solution vessel | |||
UB upper bound | |||
UPSS uninterruptible electrical power supply system | |||
URSS uranium receipt and storage system | |||
VTS vacuum transfer system | |||
ZPA zero period acceleration | |||
SHINE Medical Technologies 3-x Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Design Criteria | |||
CHAPTER 3 - DESIGN OF STRUCTURES, SYSTEMS, AND COMPONENTS | |||
3.1 DESIGN CRITERIA | |||
Structures, systems, and components (SSCs) present in the SHINE facility are identified in Tables 3.1-1 and 3.1-2, including the applicable FSAR section(s) which describe each SSC and the applicable SHINE design criteria. Design criter ia derived from external codes, guides, and standards specific to the design, construction, or inspection of SSCs are included in the applicable FSAR section describing those SSCs. For each SSC, the FSAR section identifies location, function, modes of operation, and type of actuation for specific SSCs, as applicable. | |||
Nuclear Safety Classification | |||
Safety-related SSCs at SHINE are those physical SSCs whose intended functions are to prevent accidents that could cause undue risk to health and safety of workers and the public; and to control or mitigate the consequences of such accidents. | |||
Acceptable risk is achieved by ensuring that events are highly unlikely or by reducing consequences less than the SHINE safety criteria. The SHINE safety criteria are: | |||
* An acute worker dose of five rem or greater total effective dose equivalent (TEDE). | * An acute worker dose of five rem or greater total effective dose equivalent (TEDE). | ||
* An acute dose of 1 rem or greater TEDE to any individual located outside the owner controlled area. | * An acute dose of 1 rem or greater TEDE to any individual located outside the owner controlled area. | ||
* An intake of 30 milligrams or greater of uranium in a soluble form by any individual located outside the owner controlled area. | * An intake of 30 milligrams or greater of uranium in a soluble form by any individual located outside the owner controlled area. | ||
* An acute chemical exposure to an individual from licensed material or hazardous chemicals produced from licensed | * An acute chemical exposure to an individual from licensed material or hazardous chemicals produced from licensed ma terial that could lead to irreversible or other serious, long-lasting health effects to a worker or coul d cause mild transient health effects to any individual located outside the owner controlled area. | ||
* Criticality where fissionable material is used, handled, or stored (with the exception of the target solution vessel). | * Criticality where fissionable material is used, handled, or stored (with the exception of the target solution vessel). | ||
* Loss of capability to reach safe shutdown conditions. | * Loss of capability to reach safe shutdown conditions. | ||
Some SSCs are nonsafety-related but perform functions that impact safety-related SSCs. These nonsafety-related SSCs have design basis requ irements necessary to prevent unfavorable interactions with safety-related SSCs due to failure of the nonsafety-related SSCs. | |||
Safety-related SSCs are identified in Table 3.1-1 and nonsafety-related SSCs are identified in Table 3.1-2. | |||
SHINE Design Criteria | |||
The SHINE facility uses design criteria to ensur e that the SSCs within the facility demonstrate adequate protection against the hazards present. The design criteria are selected to cover: | |||
* The complete range of irradiation facility and radioisotope production facility operating conditions. | * The complete range of irradiation facility and radioisotope production facility operating conditions. | ||
* The response of SSCs to anticipated transients and potential accidents. | * The response of SSCs to anticipated transients and potential accidents. | ||
* Design features for safety-related SSCs including redundancy, environmental qualification, and seismic qualification. | * Design features for safety-related SSCs including redundancy, environmental qualification, and seismic qualification. | ||
manmade or natural conditions. | SHINE Medical Technologies 3.1-1 Rev. 5 Chapter 3 - Design of Structures, Systems, and Components Design Criteria | ||
* Inspection, testing, and maintenance of safety-related SSCs. | |||
* Design features to prevent or mitigate th e consequences of fires, explosions, and other manmade or natural conditions. | |||
* Quality standards. | * Quality standards. | ||
* Analyses and design for meteorological, hydrological, and seismic effects. | * Analyses and design for meteorological, hydrological, and seismic effects. | ||
* The bases for technical specifications | * The bases for technical specifications necess ary to ensure the availability and operability of required SSCs. | ||
SHINE design criteria are described in Table 3.1-3. | |||
terms used in Table 3.1-3 include primary system boundary, primary confinement boundary, process confinement boundary, which are defined in Sections 4a2.2, 6a2.2, and 6b.2, | The SHINE design criteria are described in Table 3.1-3. | ||
Key terms used in Table 3.1-3 include primary system boundary, primary confinement boundary, and process confinement boundary, which are defined in Sections 4a2.2, 6a2.2, and 6b.2, respectively. | |||
SHINE Medical Technologies 3.1-2 Rev. 5 Chapter 3 - Design of Structures, Systems, and Components Design Criteria | |||
Table 3.1 Safety-Related Structures, Systems, and Components (Sheet 1 of 2) | Table 3.1 Safety-Related Structures, Systems, and Components (Sheet 1 of 2) | ||
Structure, System, or Component (SSC) | Structure, System, or Component (SSC) Acronym Section Applicable Design Criteria Engineered safety features ESFAS 7.1.3 13-19, 37-39 actuation system 7.5 Facility structure FSTR 3.4.2 29-32, 34 Hot cell fire detection and HCFD 9a2.3 29-34, 37 suppression system Irradiation cell biological shield ICBS 4a2.1 29-34, 36 4a2.5 Iodine and xenon purification IXP 4b.1.3 29-34, 36, 37, 39 and packaging 4b.3.1 Light water pool system LWPS 4a2.1 25, 29-32, 36 4a2.4.2 Molybdenum extraction and MEPS 4b.1.3 29-34, 36, 37, 39 purification system 4b.3 Neutron driver assembly NDAS 4a2.1 29-34 system 4a2.3 4a2.1 Neutron flux detection system NFDS 7.1.7 13-19 7.8 3.6 Nitrogen purge system N2PS 6b.2.3 39 9b.6.2 Normal electrical power supply NPSS 8a2.1 27, 28 system Primary closed loop cooling PCLS 4a2.1 9, 12, 21, 29-34 system 5a2.2 Process vessel vent system PVVS 4b.1.3 29-36, 39 9b.6.1 Production facility biological PFBS 4b.2 29-34, 36 shield Radioactive drain system RDS 9b.7.6 29-34, 36, 37, 39 Radioactive liquid waste RLWI 9b.7.3 35-37 immobilization Radioactive liquid waste RLWS 4b.1.3 29-37, 39 storage 9b.7.4 | ||
SHINE Medical Technologies 3.1-3 Rev. 5 Chapter 3 - Design of Structures, Systems, and Components Design Criteria | |||
Table 3.1 Safety-Related Structures, Systems, and Components (Sheet 2 of 2) | |||
Structure, System, or Component (SSC) Acronym Section Applicable Design Criteria Radiological ventilation RVZ1 zones 1, 2, and 3 RVZ2 9a2.1 29-36, 39 RVZ3 Subcritical assembly system SCAS 4a2.1 9-12, 20, 22-24, 29-34, 36, 39 4a2.2 Target solution preparation 4b.1.3 system TSPS 4b.4.2 29-34, 36, 37 9b.2.3, 4b.1.3 Target solution staging system TSSS 4b.4 29-34, 36, 37, 39 9b.2.4 Tritium purification system TPS 4a2.1 29-36, 38 9a2.7.1 TSV off-gas system TOGS 4a2.1 9, 12, 20, 22-24, 29-34, 36, 39 4a2.8 TSV reactivity protection TRPS 7.1.2 13-19, 38, 39 system 7.4 Uninterruptible electrical UPSS 8a2.2 27. 28 power supply system Uranium receipt and storage URSS 4b.1.3 36, 37 system 4b.4.2 Vacuum transfer system VTS 4b.1.3 29-34, 36, 37, 39 9b.2.5 | |||
Note 1: This table contains SSCs where at l east one constituent component is classified as safety-related. | |||
Note 2: The generally-applicable design criteria 1-8 from Table 3.1-3 are not specifically listed even though they are generally applicable to most SSCs. | |||
Note 3: Instrumentation, control and protection system-related design criteria 13-19 from Table 3.1-3 are only applied to the ESFAS, TRPS, and NFDS (i.e., the safety-related instrumentation and control systems). Other systems that include safety-related instrumentation that provides input to the safety-related instrumentation and control systems implement these criteria via flow down requirements from the safety-related instrumentation and control systems. | |||
SHINE Medical Technologies 3.1-4 Rev. 5 Chapter 3 - Design of Structures, Systems, and Components Design Criteria | |||
Table 3.1 Nonsafety-Related Structures, Systems, and Components (Sheet 1 of 2) | Table 3.1 Nonsafety-Related Structures, Systems, and Components (Sheet 1 of 2) | ||
Structure, System, or Component (SSC) | Structure, System, or Component (SSC) Acronym Section Applicable Design Criteria Criticality accident alarm CAAS 6b.3.3 37 system Continuous air monitoring CAMS 7.7.4 13, 38 system Facility access control system FACS 12.8 - | ||
Facility chemical reagent FCRS 9b.7.10 - | |||
system Facility chilled water supply FCHS 9a2.1.3 - | |||
and distribution system Facility data and FDCS 9a2.4 - | |||
communications system Facility demineralized water FDWS 5a2.6 - | |||
system Facility fire detection and FFPS 9a2.3 37 suppression system Facility heating water system FHWS 9a2.1.4 - | |||
Facility nitrogen handling FNHS 9b.7.8 - | |||
system Facility potable water system FPWS 9b.7.7 - | |||
Facility sanitary drains system FSDS 9b.7.9 - | |||
Facility ventilation zone 4 FVZ4 9a2.1 - | |||
Material handling system MHS 9b.7.2 - | |||
Molybdenum isotope product MIPS 9b.7.1 36 packaging system NDAS service cell NSC 9a2.7.2 - | |||
Process chilled water system PCHS 5a2.4 26 Process integrated control PICS 7.3 13 system Quality control and analytical LABS 9b.2 36, 37 testing laboratories 9b.5 Radiation area monitoring RAMS 7.7.3 13, 38 system Radioisotope process facility RPCS 5a2.3 26 cooling system | |||
SHINE Medical Technologies 3.1-5 Rev. 5 Chapter 3 - Design of Structures, Systems, and Components Design Criteria | |||
Table 3.1 Nonsafety-Related Structures, Systems, and Components (Sheet 2 of 2) | |||
Structure, System, or Component (SSC) Acronym Section Applicable Design Criteria Solid radioactive waste SRWP 9b.7.5 35-37 packaging Stack release monitoring SRMS 7.7.5 13, 38 system Standby generator system SGS 8a2.2 27, 28 | |||
Note 1: The generally-applicable design criteria 1-8 from Table 3.1-3 are not specifically listed. See corresponding FSAR section(s) for detailed discussions of SSC design. | |||
SHINE Medical Technologies 3.1-6 Rev. 5 | |||
Chapter 3 - Design of Structures, Systems, and Components Meteorological Damage | |||
3.2 METEOROLOGICAL DAMAGE | |||
3.2.1 WIND LOADING | |||
This subsection discusses the criteria used to design the main production facility for protection from wind loading conditions. | |||
3.2.1.1 Applicable Design Parameters | |||
The main production facility structure is designed to withstand wind pressures based on a basic wind velocity of 90 miles per hour (mph) (145 ki lometers per hour [kph]) adjusted for a mean recurrence interval of 100 years, per Figure 6-1 and Table C6-7 of American Society of Civil Engineers/Structural Engineering Institute (ASCE), Standard 7-05, Minimum Design Loads for Buildings and Other Structures (ASCE, 2006). | |||
3.2.1.2 Determination of Applied Forces | |||
The design wind velocity is converted to velocity pressure in accordance with Equation 6-15 of ASCE 7-05 (ASCE, 2006): | |||
qz = 0.00256KzKztKdV2I (pounds per square foot [lb/ft2]) (Equation 3.2-1) | |||
Where: | |||
Kz = velocity pressure exposure coefficient evaluated at height (z) in Table 6-3 of ASCE 7-05 equal to 1.13 | |||
Kzt = topographic factor as defined in Section 6.5.7 of ASCE 7-05 equal to 1.0 | |||
Kd = wind directionality factor in Table 6-4 of ASCE 7-05 equal to 0.85 | |||
V = basic wind speed (3-second gust) obtained from Figure 6-1 of ASCE 7-05 for Wisconsin equal to 90 mph and increased by a factor of 1.07 to account for a 100-year recurrence interval | |||
I = importance factor equal to 1.15 | |||
2 | |||
2.1 | Additional discussion of site design parameters related to wind loading is provided in Subsection 3.4.2.6.3.7. | ||
The design wind pressures and forces for the building at various heights above ground are obtained in accordance with Section 6.5.12.2.1 of ASCE 7-05 (ASCE, 2006) by multiplying the velocity pressure by the appropriate pressure coefficients, gust factors, accounting for sloped surfaces (i.e., the roof of the building). The bu ilding is categorized as an enclosed building according to Section 6.2 of ASCE 7-05 (ASCE, 2006) and, as a result, both external and internal pressures are applied to the structure. A positive and negative internal pressure is applied to the internal surfaces of the exterior walls as well as the roof. | |||
For external wind pressures, a Gust Effect Factor (G) of 0.85 for rigid structures is used per Section 6.5.8.1 of ASCE 7-05. External pressure coefficients are determined for windward, | |||
SHINE Medical Technologies 3.2-1 Rev. 2 Chapter 3 - Design of Structures, Systems, and Components Meteorological Damage | |||
leeward, and roof wind pressures according to Figure 6-6 of ASCE 7-05 (ASCE, 2006). For internal wind pressures, an internal pressure coefficient (GCpi) of +/-18 for enclosed buildings is used per Figure 6-5 of ASCE 7-05. Wind pressures are combined and iterated in multiple load cases to ensure the worst-case wind loading is considered in the building design. | |||
3.2.2 TORNADO LOADING | |||
This subsection discusses the criteria used to desi gn the main production facility to withstand the effects of a design-basis tornado phenomenon. | |||
3.2.2.1 Applicable Design Parameters | |||
The design-basis tornado characteristics are described in Regulatory Guide 1.76, Design Basis Tornado for Nuclear Power Plants (USNRC, 2007a): | |||
: a. Design-basis tornado characteristics are listed in Table 1 of Regulatory Guide 1.76 for Region I. | : a. Design-basis tornado characteristics are listed in Table 1 of Regulatory Guide 1.76 for Region I. | ||
: b. The design-basis tornado missile spectrum and maximum horizontal missile speeds are given in Table 2 of Regulatory Guide 1.76. | : b. The design-basis tornado missile spectrum and maximum horizontal missile speeds are given in Table 2 of Regulatory Guide 1.76. | ||
3.2.2.2 Determination of Applied Forces | |||
The maximum tornado wind speed is converted to velocity pressure in accordance with Equation 6-15 of ASCE 7-05 (ASCE, 2006): | |||
qz = 0.00256KzKztKdV2I (lb/ft2) (Equation 3.2-2) | |||
Where: | |||
Kz = velocity pressure exposure coefficient equal to 0.87 | |||
Kzt = topographic factor equal to 1.0 | |||
Kd = wind directionality factor equal to 1.0 | |||
V = maximum tornado wind speed equal to 230 mph (370 kph) for Region I | |||
I = importance factor equal to 1.15 | |||
Additional discussion of site design parameters related to tornado loading is provided in Subsection 3.4.2.6.3.8. | |||
The tornado differential pressure is defined in Regulatory Guide 1.76, Table 1 as 1.2 pounds per square inch (psi) (8.3 kilopascals [kPa]) for Region I (USNRC, 2007a). The tornado differential pressure is applied as an outward pressure to the exterior walls of the building, as well as the roof, because the structure is categorized as an en closed building in accordance with Section 6.2 of ASCE 7-05 (ASCE, 2006). | |||
The procedure used for transforming the tornado-generated missile impact into an effective or equivalent static load on the structure is cons istent with NUREG-0800, Standard Review Plan for | |||
SHINE Medical Technologies 3.2-2 Rev. 2 Chapter 3 - Design of Structures, Systems, and Components Meteorological Damage | |||
the Review of Safety Analysis for Nuclear Power Plants (SRP) Section 3.5.3, Subsection II (USNRC, 2007b). Tornado missile loading applied to the structur e is derived considering the effects of the following missile tyeps and maximum horizontal speeds: | |||
* Schedule 40 pipe at 135 feet per second (ft./sec) | * Schedule 40 pipe at 135 feet per second (ft./sec) | ||
* Automobile (4000 lb.) at 135 ft./sec | * Automobile (4000 lb.) at 135 ft./sec | ||
* Solid steel sphere at 26 ft./sec | * Solid steel sphere at 26 ft./sec | ||
The loading combinations of the individual tornado loading components and the load factors are in accordance with SRP Section 3.3.2 (USNRC, 2007c). | |||
design basis precipitation, flood levels, and ground water levels for the main production | 3.2.2.3 Effect of Failure of Structures, Syst ems, or Components Not Designed for Tornado Loads | ||
SSCs whose failure during a tornado event could affect the safety-related portions of the facility are either designed to resist the tornado loading or the effect on the safety-related structures from the failure of these SSCs or portions thereof are shown to be bounded by the tornado missile or aircraft impact evaluations. | |||
The Seismic Category I boundary provides missil e walls to protect safety-related systems from damage due to tornado missiles. SSCs that are credited to prevent or mitigate potential accidents caused by a tornado event are protected by the design of the enclosed structure. The structural analysis does not credit venting of the Seismic Category I boundary during a tornado event. The differential pressure on all surfaces as an enclosed structure results in higher pressures, and the differential pressure would be reduced by the effects of venting. Therefore, there are no consequences to venting the building during a tornado event. | |||
3.2.3 SNOW, ICE, AND RAIN LOADING | |||
This subsection discusses the criteria used to design the main production facility to withstand conditions due to snow, ice, and rain loading. Rain loading is not considered in the structural design of the building as the sloped roofs do not result in rain accumulation. As a result of the lack of rain accumulation, load due to ice is anticipated to be minimal and is enveloped by the design snow load. | |||
3.2.3.1 Applicable Design Parameters | |||
Snow load design parameters pertinent to the main production facility are provided in Chapter 7 of ASCE 7-05 (ASCE, 2006) and adjusted for a mean recurrence interval of 100 years, per Table C7.3 of ASCE 7.05 (ASCE, 2006). | |||
3.2.3.2 Determination of Applied Forces | |||
The sloped roof snow load is calculated in acco rdance with Sections 7.3 and 7.4 of ASCE 7-05 (ASCE, 2006). The combined equation utilized to calculate the sloped roof load is: | |||
ps = 0.7CsCeCtIpg (Equation 3.2-3) | |||
SHINE Medical Technologies 3.2-3 Rev. 2 Chapter 3 - Design of Structures, Systems, and Components Meteorological Damage | |||
Where: | |||
Cs = roof slope factor as determined by Sections 7.4.1 through 7.4.4 of ASCE 7-05 equal to 1.0 | |||
Ce = exposure factor as determined by Table 7-2 of ASCE 7-05 equal to 1.0 | |||
Ct = thermal factor as determined by Table 7-3 of ASCE 7-05 equal to 1.0 | |||
I = importance factor as determined by Table 7-4 of ASCE 7-05 equal to 1.2 | |||
pg = ground snow load as set forth in Figure 7-1 of ASCE 7-05 equal to 30 pounds per square foot (psf) and increased by a factor of 1.22 to account for a 100-year recurrence interval | |||
Additional discussion of site design parameters related to snow loading is provided in Subsection 3.4.2.6.3.4. | |||
Unbalanced roof snow loads are computed in accordance with Section 7.6 of ASCE 7-05 (ASCE, 2006). The design snow drift surcharge loads are computed in accordance with Section 7.7.1 of ASCE 7-05 (ASCE, 2006). | |||
SHINE Medical Technologies 3.2-4 Rev. 2 Chapter 3 - Design of Structures, Systems, and Components Water Damage | |||
3.3 WATER DAMAGE | |||
The design basis precipitation, flood levels, and ground water levels for the main production facility are as follows: | |||
* Design basis flood level: 50 feet (ft.) (15.2 meters [m]) below grade. | * Design basis flood level: 50 feet (ft.) (15.2 meters [m]) below grade. | ||
* Design basis precipitation level: at grade. | * Design basis precipitation level: at grade. | ||
* Maximum ground water level: 50 ft. (15.2 m) below grade. | * Maximum ground water level: 50 ft. (15.2 m) below grade. | ||
Subsection 2.4.2.3, a design basis rainfall event creates a water level about level with grade. | |||
first floor of the building is at least 4 inches (in.) (10.2 centimeters [cm]) above grade; | Per Subsection 2.4.2.3, a design basis rainfall event creates a water level about level with grade. | ||
Subsection 2.4.3, a local probable maximum flood (PMF) event creates a water level | The first floor of the building is at least 4 inches (in.) (10.2 centimeters [cm]) above grade; therefore, water will not infiltrate the door openings in the case of a design basis rainfall event. | ||
impact of internal flooding is determined by the maximum flow rate and the volume of water | |||
Per Subsection 2.4.3, a local probable maximum flood (PMF) event creates a water level approximately 50 ft. (15.2 m) below grade. The water elevation for the PMF is derived from FEMA flood profiles. The lowest point of the facility is 26 ft. (7.9 m) below grade; therefore, flooding does not cause any structural loading in the case of a local PMF event. | |||
The impact of internal flooding is determined by the maximum flow rate and the volume of water available to feed the flood. No active response is assumed to terminate the flow and the entire volume of available water is assumed to spill in to the main production facility. For water sources outside the building (fire water), automatic or operator actions are required to terminate the flow. | |||
Berms and ramps are used within the facility to: | |||
* Capture and contain water collected in the RCA resulting from postulated water system ruptures or fire system discharges above grade. | * Capture and contain water collected in the RCA resulting from postulated water system ruptures or fire system discharges above grade. | ||
* Prevent water intrusion into the uranium receipt and storage system (URSS) and target solution preparation system (TSPS) rooms. | * Prevent water intrusion into the uranium receipt and storage system (URSS) and target solution preparation system (TSPS) rooms. | ||
* Prevent a release of water from the RCA due to the postulated failure of the radioisotope process chilled water system (RPCS) room, the process chilled water system (PCHS), or the facility demineralized water system (FDWS). | * Prevent a release of water from the RCA due to the postulated failure of the radioisotope process chilled water system (RPCS) room, the process chilled water system (PCHS), or the facility demineralized water system (FDWS). | ||
* Prevent bulk release of water into the | * Prevent bulk release of water into the radioac tive drain system (RDS) sump tanks thereby overfilling the sump collection piping. | ||
1 | Safety-related equipment vulnerable to water damage is protected by locating it in flood-protective compartments and/or in stalling it above flood elevation. | ||
3.3.1 FLOOD PROTECTION | |||
This subsection discusses the flood protection measures that are applicable to safety-related SSCs for both external flooding and postulated flo oding from failures of facility components containing liquid. | |||
Analyses of the worst flooding due to pipe and tank failures and their consequences are performed in this subsection. | |||
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3.3.1.1 Flood Protection Measures for Structures, Systems, and Components | |||
Postulated flooding from component failures in the building compartments is prevented from adversely affecting plant safety or posing any hazard to the public. Exterior or access openings and penetrations into the main production facility are above the maximum postulated flooding level and thus do not require protection against flooding. | |||
3.3.1.1.1 Flood Protection from External Sources | |||
Safety-related components located below the design flood level are protected using the hardened protection approach described below. The safety-related systems and components are flood-protected because they are enclosed in a reinforced concrete safety-related structure, which has the following features: | |||
: a. Exterior walls below flood level are not less than 2 ft. (0.61 m) thick. | : a. Exterior walls below flood level are not less than 2 ft. (0.61 m) thick. | ||
: b. Water stops are provided in construction joints below flood level. | : b. Water stops are provided in construction joints below flood level. | ||
: c. Waterproofing is applied to external surfaces exposed to flood level. | : c. Waterproofing is applied to external surfaces exposed to flood level. | ||
: d. Roofs are designed to prevent pooling of large amounts of water. | : d. Roofs are designed to prevent pooling of large amounts of water. | ||
Waterproofing of foundations and walls of Seismic Category I structures below grade is accomplished principally by the use of water stops at construction joints. | |||
In addition to water stops, waterproofing of the main production facility is provided up to 4 in. | |||
design of the shield plugs over the pipe trenches and vaults prevents bulk leakage of liquid the vaults from postulated flooding events within the remainder of the RCA. | (10.2 cm) above the plant ground level to protect the external surfaces from exposure to water. | ||
light water pool in the irradiation unit cell ( | |||
1.2 | 3.3.1.1.2 Flood Protection from Internal Sources | ||
2 | |||
load from build-up of water due to discharge of fire water in the RCA is supported by slabs grade, with the exception of the mezzanine floor. Openings that are provided in the | Fire suppression systems within the RCA consis t of manual discharge via fire hoses from dry standpipes, except in those areas of the RCA in which gaseous fire suppression is provided, as described in Section 9a2.3. The total discharge from the fire protection discharge consists of the combined volume from any firefighting hoses. In accordance with National Fire Protection Association (NFPA) 801, Section 5.10 (NFPA, 2008), the credible volume of discharge is sized for a manual fire-fighting flow rate of 500 gallons per minute (1893 liters per minute) for a duration of 30 minutes (min.). Therefore, the total discharge volume is 15,000 gallons (56,782 liters). This bounds the total water available in the PCHS and RPCS cooling systems that could cause internal flooding. When the total discharge volume of fire water is distributed over the entire RCA, the depth is less than 2 in. (5.1 cm). When the total discharge volume of fire water is distributed only over the minimum open floor area in the irradiation facility (IF), the depth is less than 12 in. (30.5 cm). | ||
The safety-related function(s) of systems within the RCA that are subject to the effects of a discharge of the fire suppression system are appropriately protected by redundancy and separation. Where redundant equipment is unable to be effectively separated, fire response plans are established to ensure redundant trains of water sensitive safety-related equipment are not both subject to damage due to discharge of the fire suppression system. The floors of the URSS/TSPS rooms are elevated to prevent water intrusion in the event of an internal flood. | |||
Water sensitive safety-related equipment is raised from the floor a minimum of 12 in. (30.5 cm) in the RCA, with the exception of the RPCS room, where water sensitive safety-related equipment is raised a minimum of 24 in. (61.0 cm) from the floor to provide defense in depth. Therefore, the | |||
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depth of water due to fire protection discharge is less than the elevation that water sensitive safety-related equipment is raised from the floor. | |||
Outside of the RCA there is limited water discha rge from fire protection systems. The safety-related function(s) of systems outside the RCA that are subject to the effects of a discharge of the fire suppression system are appropriately protected by redundancy and separation. The uninterruptible electrical power supply system (UPSS) has two trains to provide redundancy. | |||
These trains are isolated from each other to pr event one train from being damaged by discharge of the fire protection system in the vicinity of the other train. Any water sensitive safety-related equipment outside the RCA is installed a minimu m of 8 in. (20.3 cm) above the floor slab at grade. | |||
Flood scenarios have been considered for the pipe trenches and vaults. Process piping, vessels, and tanks containing special nuclear material (SNM) or radioactive liquids are seismically qualified. There is no high-energy piping within these areas. Any pipe or tank rupture in the radioisotope production facility (RPF) vaults is routed to the radioactive drain system (RDS). The RDS is sized for the maximum postulated pipe or tank failure as described in Subsection 9b.7.6. | |||
The design of the shield plugs over the pipe trenches and vaults prevents bulk leakage of liquid into the vaults from postulated flooding events within the remainder of the RCA. | |||
The light water pool in the irradiation unit cell (I U) is filled to an elevation approximately equal to the top of the surrounding area floor slab. Given the robust design of the light water pool (approximately 4 ft. thick reinforced concrete) and the stainless steel liner, loss of a significant amount of pool water is not credible. | |||
3.3.1.2 Permanent Dewatering System | |||
There is no permanent dewatering system provided for the flood design. | |||
3.3.2 STRUCTURAL DESIGN FOR FLOODING | |||
Since the design basis rainfall event elevation is at the finished plant grade and the PMF elevation is approximately 50 ft. (15.2 m) below grade, there is no dynamic force due to precipitation or flooding. | |||
The load from build-up of water due to discharge of fire water in the RCA is supported by slabs on grade, with the exception of the mezzanine floor. Openings that are provided in the mezzanine ensure that the mezzanine slab is not significantly loaded. The mezzanine floor slab is designed to a live load of 250 pounds per square foot (1221 kilograms per square meter). | |||
Therefore, the mezzanine floor slab is capable of withstanding temporary water collection that may occur while water is draining from the mezzanine floor. | |||
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3.4 SEISMIC DAMAGE | |||
Seismic analysis criteria for the main production facility structure (FSTR) are supported by the detailed guidance provided by the referenced Regulatory Guides and sections of NUREG-0800, Standard Review Plan for the Review of Safe ty Analysis for Nuclear Power Plants (SRP). | |||
The FSTR includes the irradiation facility (IF), the radioisotope production facility (RPF), the non-radiologically controlled seismic area, and a nonsafety-related area. The IF contains the irradiation units (IUs) and tritium purification system (TPS), and the RPF contains the supercell and below-grade tanks. The non-radiologically controlled seismic area contains the control room, battery rooms, uninterruptible electrical power supply rooms, and other miscellaneous support rooms. The RPF, IF, and non-radiologically controlled seismic area are within the seismic boundary and are classified as Seismic Category I. These areas contain the safety-related structures, systems, and components (SSCs). To the south of the seismic boundary are the shipping and receiving areas, as well as other areas that contain nonsafety-related support systems and equipment. This part of the structure is not Seismic Category I. The areas outside the seismic boundary do not contain safety-related SSCs. | |||
The IF, RPF, and non-radiologically controlled se ismic area comprise the safety-related portion of the FSTR. The dimensions of the safety-related portion of the FSTR at grade level are approximately 212 feet (ft.) (64.6 meters [m]) in the north-south direction and 158 ft. (48.2 m) in the east-west direction. Each of the three main areas of the safety-related portion of the FSTR is a parallel, single-story box-type structure designed with cast-in-place reinforced concrete shear walls. The major structural elements include the foundation mat, mezzanine floor, roof slab, and shear walls. Depending on their function, interior walls are cast-in-place reinforced concrete, reinforced masonry, or gypsum mounted to metal studs. | |||
The IF and RPF have a shared sloped main roof sl ab with a low point elevation of approximately 45 ft. (13.7 m) and a high point elevation of approximately 56 ft. (17 m). The IF and RPF roof dimensions are approximately 212 ft. (64 m) in the north-south direction and 126 ft. (38.4 m) in the east-west direction. The IF and RPF roof slab is 12 inches (in.) (0.3 m) thick and has a 5 in. | |||
(0.13 m) thick leave-in-place form slab on metal deck beneath it. The IF and RPF roof slab is supported by a series of roof trusses, which ar e made out structural steel shapes having a yield strength of 50 kilopounds per square inch (ksi) (6.89 MPa). | |||
The non-radiologically controlled seismic area roof slab is 20 in. (0.51 m) thick and has a high point elevation of approximately 22 ft. (6.71 m). The non-radiologically controlled seismic area roof dimensions are approximately 148 ft. (45.1 m) in the north-south direction and 32 ft. (9.75 m) in the east-west direction. | |||
Interior to the IF and RPF there is a mezzanine with 8 in. (0.2 m) thick reinforced concrete slab on metal deck, vertically supported by structur al steel beams and columns (structural shapes with yield strength of 50 ksi [6.9 MPa]), and laterally restrained by interior reinforced concrete walls. A large section of the RPF mat slab is recessed 12 ft. (3.66 m) to 23 ft. (7 m) below the main mat slab, where a series of 1 ft. (0.3 m) thick (minimum) reinforced concrete walls divides the area. The exterior below grade walls in the recessed portion of the RPF range from a minimum of 2 ft. (0.61 m) thick to a maximum of 3.5 ft. (1.07 m) thick, and the basemat is 2.5 ft. | |||
(0.76 m) thick. The RPF below grade areas are covered by a series of precast concrete shield plugs. A section of the IF mat slab is recessed 16 ft. (4.9 m) below the main mat slab, where a series of 4.5 ft. (1.37 m) thick (minimum) reinforced concrete walls divides the area. The exterior | |||
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below grade walls in the recessed portion of the IF range from a minimum of 4 ft. (1.2 m) thick to a maximum of 5.83 ft. (1.8 m) thick, and the basemat is 3 ft. (0.91 m) thick. Shield plugs cover the IU cells which are located above the recessed portions of the IF. Shield plugs in the IF and RPF are seismically qualified to remain in place during a design basis earthquake (DBE). | |||
The reinforced concrete structural elements of the safety-related portion of the FSTR are constructed of Type II concrete with a design compressive strength at 28 days of 6000 pounds per square inch (psi) (41.37 MPa) and American Society for Testing and Materials (ASTM) A706/A706M-16, Standard Specification for De formed and Plain Low-Alloy Steel Bars for Concrete Reinforcement (ASTM, 2016) steel re inforcement bars with a minimum design yield strength of 60 ksi (413.7 MPa). The exterior above grade walls and major shear walls range from a minimum of 2 ft. (0.61 m) thick to a maximum of 2.33 ft. (0.71 m) thick. The reinforced concrete structures are founded on a 3 ft. (0.91 m) thick mat slab that is thickened to 4.5 ft. (1.37 m) thick around the building perimeter. | |||
The dimensions of the nonsafety-related portion of the FSTR at grade are approximately 77 ft. | |||
(23.5 m) in the north-south direction and 158 ft. (48.2 m) in the east-west direction. Additionally, the southwest corner of the safety-related basemat contains a part of the nonsafety-related portion of the FSTR. The dimensions of this nonsafety-related part are approximately 63 ft. | |||
(19.2 m) in the north-south direction and 32 ft. (9.8 m) in the east-west direction. The safety-related portion of the FSTR is seismically isolated from the nonsafety-related portion of the FSTR via a seismic separation joint (i.e., seismic gap). | |||
The nonsafety-related portion of the FSTR is a two-story steel framed structure with a roof height of approximately 40 ft. (12.2 m). The concrete on metal deck mezzanine slab and metal deck roof slab are diaphragms that transfer the lateral loads to a series of vertical brace systems. The FSTR also includes a nonsafety-related, isolat ed, self-supporting steel on reinforced-concrete foundation cantilevered exhaust stack with a height of approximately 67 ft. (20.4 m) located east of the nonsafety-related portion of the FSTR. | |||
The FSTR is modeled to the analyses described in this chapter. The concrete walls, slabs, and basemat are modeled using thick shell elements. The steel structural members are modeled using three-dimensional beam elements. Interior partition walls made of concrete are modeled using thick shell elements. Interior partition walls made of masonry or gypsum are isolated from the lateral load resisting system of the building and are not explicitly modeled, but their mass is accounted for. Interior partition walls that ar e co-located with safety-related SSCs, and must maintain structural integrity to prevent unacceptable interactions with safety-related SSCs, are classified as Seismic Category II. The excavated soil volume of the soil-structure interaction (SSI) analysis is modeled using solid elements. Seismic mass is considered in the model in accordance with SRP Section 3.7.2 (USNRC, 2013a). Figure 3.4-1 and Figure 3.4-2 provide three-dimensional views of the structural model. | |||
Certain material in this section provides informat ion that is used in the technical specifications, including conditions for operation and design featur es. In addition, significant material is also applicable to, and may be referenced by, the bases that are described in the technical specifications. | |||
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3.4.1 SEISMIC INPUT | |||
3.4.1.1 Design Response Spectra | |||
The safe shutdown earthquake (SSE) ground motion is defined with a maximum ground acceleration of 0.2 g and design response spectr a in accordance with Regulatory Guide 1.60, Revision 2, Design Response Spectra for Seismic Design of Nuclear Power Plants (USNRC, 2014a). | |||
Consistent with SRP Section 3.7.2 (USNRC, 2013a), the location of the ground motion should be at the ground surface. The competent material (mat erial with a minimum shear wave velocity of 1,000 feet per second [ft./sec] [305 meters per second {m/s}]) is 7.5 ft. (2.3 m) below the ground surface for the site. Hence, the SSE response spectra are defined as an outcrop at a depth of 7.5 ft. (2.3 m) below grade. | |||
3.4.1.2 Design Time Histories | |||
1.2 | For SSI analysis and for generating in-structure response spectra, design acceleration time histories are required. Synthetic acceleration ti me histories are generated to envelop the design response spectra. Mutually orthogonal synthetic acceleration time histories are generated for each horizontal direction and one for the vertical di rection. Each of these time histories meets the design response spectra enveloping requirements c onsistent with Approach 2, Option 1 of SRP Section 3.7.1 (USNRC, 2014b). The specifics of each of these time histories are: | ||
* Each synthetic time history has been generated starting with seed recorded earthquake time histories. | * Each synthetic time history has been generated starting with seed recorded earthquake time histories. | ||
* The strong motion durations (Arias intensity to rise from 5 percent to 75 percent) of synthetic time histories are greater than a minimum of 6 seconds. | * The strong motion durations (Arias intensity to rise from 5 percent to 75 percent) of synthetic time histories are greater than a minimum of 6 seconds. | ||
Line 292: | Line 692: | ||
* The computed 5 percent damped response spectrum of the acceleration time history shall not fall more than 10 percent below the target response spectrum at any one frequency and shall have no more than 9 adjacent frequency points falling below the target response spectrum. | * The computed 5 percent damped response spectrum of the acceleration time history shall not fall more than 10 percent below the target response spectrum at any one frequency and shall have no more than 9 adjacent frequency points falling below the target response spectrum. | ||
* The computed 5 percent damped response spectrum of the artificial time history shall not exceed the target spectrum at any frequency by more than 30 percent in the frequency range of interest. | * The computed 5 percent damped response spectrum of the artificial time history shall not exceed the target spectrum at any frequency by more than 30 percent in the frequency range of interest. | ||
1.3 | Comparison of the response spectra obtained from the artificial acceleration time histories with the target design response spectra illustrates that the enveloping criteria of SRP Section 3.7.1 (USNRC, 2014b) are satisfied. The seismic design parameters used in the seismic analysis of the FSTR, including the artificial acceleration time histories, target design response spectra, and | ||
2 | |||
M | SHINE Medical Technologies 3.4-3 Rev. 5 Chapter 3 - Design of Structures, Systems, and Components Seismic Damage | ||
[M] | |||
[C] | response spectra obtained from artificial acceleration time histories, are consistent with the SRP Section 3.7.1 acceptance criteria. | ||
[K] | |||
3.4.1.3 Critical Damping Values | |||
Structural damping values for various structur al elements used in the seismic analyses are provided in Section 1.1 of Regulatory Guide 1. 61, Revision 1, Damping Values for Seismic Design of Nuclear Power Plants (USNRC, 2007d). Seismic SSI analysis of the FSTR is performed in the program SASSI2010, Version 1.0, which performs the analysis in the frequency domain. The variations in damping are accoun ted for in the seismic SSI analysis through the complex frequency response analysis method which incorporates damping as an imaginary component in the stiffness matrix. | |||
3.4.2 SEISMIC ANALYSIS OF FACILITY STRUCTURES | |||
3.4.2.1 Seismic Analysis Methods | |||
The general equation of motion (as seen below) is used regardless of the method selected for the seismic analysis. | |||
M xCxKxMug (Equation 3.4-1) | |||
Where: | |||
[M] = mass matrix | |||
[C] = damping matrix | |||
[K] = stiffness matrix | |||
= column vector of relative accelerations | |||
= column vector of relative velocities | |||
= column vector of relative displacements | |||
= ground acceleration | |||
Analytical models are represented by finite element models. Consistent with SRP Section 3.7.2 (USNRC, 2013a), SRP Acceptance Criterion 3.C, finite element models are acceptable if the following guidelines are met: | |||
* The type of finite element used for modeling a structural system should depend on structural details, the purpose of analysis, and the theoretical formulation upon which the element is based. The mathematical discretization of the structure should consider the effect of element size, shape, and aspect ratio on solution accuracy. | * The type of finite element used for modeling a structural system should depend on structural details, the purpose of analysis, and the theoretical formulation upon which the element is based. The mathematical discretization of the structure should consider the effect of element size, shape, and aspect ratio on solution accuracy. | ||
* In developing a finite element model for dynamic response, it is necessary to consider that local regions of the structure, such as individual floor slabs or walls, may have fundamental vibration modes that can be excited by the dynamic seismic loading. These local vibration modes are represented in the dynamic response model, in order to ensure that the in-structure response spectra include the additional amplification. | * In developing a finite element model for dynamic response, it is necessary to consider that local regions of the structure, such as individual floor slabs or walls, may have fundamental vibration modes that can be excited by the dynamic seismic loading. These local vibration modes are represented in the dynamic response model, in order to ensure that the in-structure response spectra include the additional amplification. | ||
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2.2 | |||
The seismic analysis of the FSTR is performed in the program SASSI2010, Version 1.0, System for Analysis of Soil-Structure Interaction, and SAP 2000, integrated software for structural analysis and design. The finite element model c onsists of plate/shell, solid, beam, or a combination of finite elements. | |||
* The below grade and mezzanine slabs are | |||
3.4.2.2 Soil-Structure Interaction (SSI) Analysis | |||
The SSI model provides structural responses for design basis level seismic loading of the main production facility, including transfer functions, maximum seismic acceleration (zero period acceleration [ZPA]), and in-structure response sp ectra (ISRS) (horizontal and vertical directions) for various damping values. The SSI model is developed using the computer program SASSI2010. | |||
Solid elements are only used in the modelng of t he excavated soil volume. No solid elements are used in the modeling of the building structure. Major structural elements of the main production facility, including walls, slabs, beams and columns, are modeled with appropriate mass and stiffness properties. Major openings within walls and slabs are included in the SSI model. The model uses thick shell elements to represent concrete slabs and walls, and beam elements to represent steel members, mostly comprising the truss components in the facility. Elements are modeled at the geometric centerline of the structural member they represent with the following exceptions: | |||
* The below grade and mezzanine slabs are model ed at their actual top-of-slab elevation. | |||
* Minor adjustments are made to the dimensions and locations of wall openings to maximize mesh regularity in the model. | * Minor adjustments are made to the dimensions and locations of wall openings to maximize mesh regularity in the model. | ||
* Roof truss locations are adjusted to align with the roof shell element mesh. | * Roof truss locations are adjusted to align with the roof shell element mesh. | ||
In addition to self-weight of the structure, floor loads and equipment loads are converted to mass and included in the model. A mass equivalent to a 50 pounds per square foot (psf) floor load is added to floor slabs to represent miscellaneo us loads from minor equipment, piping, and raceways. A portion of the loads are considered mass sources in the following manner according to SRP Section 3.7.2 (USNRC, 2013a): | |||
* Dead Load 100 percent | * Dead Load 100 percent | ||
* Live Load25 percent | * Live Load25 percent | ||
* Snow Load.75 percent | * Snow Load.75 percent | ||
SSI analyses are performed separately on an equivalent linear-elastic basis for mean (best | |||
In addition, 100 percent of the hydrodynamic mass of the water in the IU cells and 100 percent of the parked crane mass is included. | |||
The SSI analyses are performed separately on an equivalent linear-elastic basis for mean (best estimate [BE]), upper bound (UB), and lower bound (LB) soil properties to represent potential variations in in-situ and backfill soil conditions around the building in accordance with SRP Section 3.7.2 (USNRC, 2013a). SSI analysis requires detailed input of the soil layers supporting the structure. Strain dependent soil properties were determined from geotechnical investigations and free field site response analysis. The free-field site response analysis is performed for the LB, BE, and UB soil properties. In accordance with SRP Section 3.7.2, the UB and LB values of the soil shear modulus, G, are obtained in terms of their BE through the equations shown below. | |||
Equations 3.4-2 and 3.4-3 are used to calculate the low strain properties for the LB and UB. The final soil properties are calculated from the SHAKE2000 program, version 3.5. | |||
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(Equation 3.4-2) | |||
(Equation 3.4-3) | |||
Where, COV is the coefficient of variation. A COV of 0.5 is used because the site is well-investigated. | |||
3.4.2.3 Combination of Earthquake Components | |||
In order to account for the responses of the stru ctures subjected to the three directional (two horizontal and the vertical) excitations, the ma ximum co-directional responses are combined using either the square root of the sum of the squares (SRSS) method or the 100-40-40 rule as described in Section 2.1 of Regulatory Guide 1.92, Revision 3, Combining Modal Responses and Spatial Components in Seismic Response Analysis (USNRC, 2012). | |||
3.4.2.4 Seismic Analysis Results | |||
The seismic loads are applied to the st ructural analysis model as described in Subsection 3.4.2.6 and utilized to develop in-structure response spec tra of the facility for use in sizing equipment and components. Response spectra acceleration s are output from SASSI at the 75 standard frequencies between 0.2 Hz and 34 Hz as suggested by Regulatory Guide 1.122, Revision 1, Development of Floor Design Response Spectra for Seismic Design of Floor-Supported Equipment or Components (USNRC, 1978). In addition, response spectra accelerations are specified to be output at frequencies of 37 Hz, 40 Hz, 43 Hz, 46 Hz and 50Hz. | |||
The results of the seismic analysis demonstrate that the design of the FSTR meets the seismic requirements of SHINE Design Criterion 2. | |||
3.4.2.5 Assessment of Structural Seismic Stability | |||
The stability of the main production facility is evaluated for sliding and overturning considering the following load combinations and factors of safe ty in accordance with Section 7.2 of American Society of Civil Engineers (ASCE)/Structural Engineering Institute (SEI) Standard 43-05, Seismic Design Criteria for Structures, Systems, and Components in Nuclear Facilities (ASCE/SEI, 2005) and SRP Section 3.8.5 (USNRC, 2013b): | |||
Minimum Factor of Safety Load Combination Sliding Overturning | |||
Minimum Factor of Safety Load Combination | |||
D | 1.1 1.1 (Equation 3.4-4) | ||
lateral driving forces applicable to the | |||
seismic stability evaluation of the main | 1.1 1.1 (Equation 3.4-5) | ||
such, the main production facility is considered stable. | |||
2.6 | 1.5 1.5 (Equation 3.4-6) | ||
2.6.2 | |||
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Where: | |||
D = Dead Load H = Lateral Earth Pressures E = Earthquake Load Wt = Tornado Load W = Wind Load | |||
The base reactions due to seismic forces envel op the reactions due to wind and tornado loading; therefore, a stability analysis for wind and torna do is not required. Seismic excitation in each direction is considered using the 100-40-40 percent combination rule as specified in Subsection 3.4.2.3 above. | |||
The lateral driving forces applicable to the se ismic stability evaluation of the main production facility include active lateral soil force, static surcharge lateral soil force, dynamic surcharge lateral soil, dynamic lateral soil force, and seismic lateral inertial force. The resistance for sliding is due to the static friction at the soil-basemat interface for sliding evaluation and passive lateral soil resistance. The self-weight of the structur e is considered in the resistance to overturning effects. | |||
The seismic stability evaluation of the main produ ction facility determined the minimum factor of safety against sliding to be 1.11 and the minimum fa ctor of safety against overturning to be 1.99. | |||
As such, the main production facility is considered stable. | |||
3.4.2.6 Structural Analysis of Facility | |||
3.4.2.6.1 Description of the Structures | |||
The main production facility is a box-type s hear wall system of reinforced concrete with reinforced concrete floor slabs. The major structural elements in the main production facility include the shear walls, the floor and roof slabs, and the foundation mat. | |||
3.4.2.6.2 Applicable Codes and Standards | |||
* ACI 349-13, Code Requirements for Nuclear Safety-Related Concrete Structures and Commentary (ACI, 2014) | * ACI 349-13, Code Requirements for Nuclear Safety-Related Concrete Structures and Commentary (ACI, 2014) | ||
* ANSI/AISC N690-12, Specification for Safety-Related Steel Structures for Nuclear Facilities (ANSI/AISC, 2012) 2.6.3 | * ANSI/AISC N690-12, Specification for Safety-Related Steel Structures for Nuclear Facilities (ANSI/AISC, 2012) | ||
3.4.2.6.3 Site Design Parameters | |||
The following subsections provide the site-specif ic parameters for the design of the facility. | |||
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3.4.2.6.3.1 Soil Parameters | |||
soil parameters for the facility are provided below. | The soil parameters for the facility are provided below. | ||
* Maximum bearing pressure beneath major foundation elevations: | * Maximum bearing pressure beneath major foundation elevations: | ||
- Main mat at 3 ft. below grade: 2460 pounds per square foot (psf) (118 kilopascal | |||
[kPa]). | [kPa]). | ||
- Mats supporting RPF pipe trench, adjacent valve pits, and tank areas at 15 ft. and 19 ft. below grade: 5970 psf (286 kPa). | |||
- Mats beneath carbon delay bed vault at 25.5 ft. below grade: 5130 psf (246 kPa). | |||
* Allowable soil bearing pressure: 6000 psf (287 kPa). | * Allowable soil bearing pressure: 6000 psf (287 kPa). | ||
* Minimum average shear wave velocity: 459 ft./sec (140 m/s). | * Minimum average shear wave velocity: 459 ft./sec (140 m/s).3 | ||
* Minimum unit weight: 117 pounds per cubic foot (lb/ft3) (1874 kilograms per cubic meters | * Minimum unit weight: 117 pounds per cubic foot (lb/ft3 ) (1874 kilograms per cubic meters | ||
[kg/ | [kg/m ]). | ||
allowable soil bearing pressure is greater than the maximum soil bearing pressures at the | |||
2.6.3.2 | The allowable soil bearing pressure is greater than the maximum soil bearing pressures at the supporting mats at the major foundation elevations. | ||
3.4.2.6.3.2 Maximum Ground Water Level | |||
* 50 ft. (15.2 m) below grade level. | * 50 ft. (15.2 m) below grade level. | ||
2.6.3.3 | |||
3.4.2.6.3.3 Maximum Flood Level | |||
* Section 2.4 describes the design basis rainfall event. | * Section 2.4 describes the design basis rainfall event. | ||
* Section 2.4 describes the probable maximum flood (PMF). | * Section 2.4 describes the probable maximum flood (PMF). | ||
2.6.3.4 | |||
3.4.2.6.3.4 Snow Load | |||
* Snow load: 30 psf (1.44 kPa) (50-year recurrence interval). | * Snow load: 30 psf (1.44 kPa) (50-year recurrence interval). | ||
* A factor of 1.22 is used to account for the 100-year recurrence interval required. | * A factor of 1.22 is used to account for the 100-year recurrence interval required. | ||
2.6.3.5 | |||
3.4.2.6.3.5 Design Temperatures | |||
* The winter dry-bulb temperature (-7°F [-22°C]). | * The winter dry-bulb temperature (-7°F [-22°C]). | ||
* The summer dry bulb temperature (88°F [31°C]). | * The summer dry bulb temperature (88°F [31°C]). | ||
2.6.3.6 | |||
3.4.2.6.3.6 Seismology | |||
* SSE peak ground acceleration (PGA): 0.20 g (for both horizontal and vertical directions). | * SSE peak ground acceleration (PGA): 0.20 g (for both horizontal and vertical directions). | ||
* SSE response spectra: per Regulatory Guide 1.60 (USNRC, 2014a). | * SSE response spectra: per Regulatory Guide 1.60 (USNRC, 2014a). | ||
* SSE time history: envelope SSE response spectra in accordance with SRP Section 3.7.1 (USNRC, 2014b). | * SSE time history: envelope SSE response spectra in accordance with SRP Section 3.7.1 (USNRC, 2014b). | ||
2.6.3.7 | |||
3.4.2.6.3.7 Extreme Wind | |||
* Basic wind speed for Wisconsin: 90 miles per hour (mph) (145 kilometers per hour [kph]) | * Basic wind speed for Wisconsin: 90 miles per hour (mph) (145 kilometers per hour [kph]) | ||
(50-year recurrence interval). | (50-year recurrence interval). | ||
* A factor of 1.07 is used to account for the 100-year recurrence interval required. | * A factor of 1.07 is used to account for the 100-year recurrence interval required. | ||
* Exposure Category C. | * Exposure Category C. | ||
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3.4.2.6.3.8 Tornado | |||
* Maximum tornado wind speed (Region 1): 230 mph (370 kph). | * Maximum tornado wind speed (Region 1): 230 mph (370 kph). | ||
* Maximum tornado rotational speed (Region 1): 184 mph (82 m/s). | * Maximum tornado rotational speed (Region 1): 184 mph (82 m/s). | ||
Line 381: | Line 856: | ||
* Rate of tornado differential pressure: 0.5 psi/s (3.7 kPa/s). | * Rate of tornado differential pressure: 0.5 psi/s (3.7 kPa/s). | ||
* Missile Spectrum: see Table 2 of Regulatory Guide 1.76 (USNRC, 2007a). | * Missile Spectrum: see Table 2 of Regulatory Guide 1.76 (USNRC, 2007a). | ||
2.6.3.9 | |||
3.4.2.6.3.9 Rainfall | |||
* The main production facility's sloped roof and building configuration preclude accumulation of rainwater; therefore, rain loads are not considered in this evaluation. | * The main production facility's sloped roof and building configuration preclude accumulation of rainwater; therefore, rain loads are not considered in this evaluation. | ||
2.6.4 | |||
3.4.2.6.4 Design Loads and Loading Combinations | |||
3.4.2.6.4.1 Dead Load | |||
Dead loads consist of the weight of all materials of construction incorporated into the building, as well as the following: | |||
* Concrete cover blocks for below grade tanks and trenches. | * Concrete cover blocks for below grade tanks and trenches. | ||
* Fixed equipment (includes tanks and hot cells). | * Fixed equipment (includes tanks and hot cells). | ||
Line 390: | Line 871: | ||
* Weight of commodities attached to structural elements. | * Weight of commodities attached to structural elements. | ||
* Crane dead loads as described in Subsection 3.4.2.6.4.6. | * Crane dead loads as described in Subsection 3.4.2.6.4.6. | ||
2.6.4.2 | |||
includes minimum live loads driven by occupancy and non-permanent loads caused by | 3.4.2.6.4.2 Live Load | ||
following categories encompass the live loads for the main production facility: | |||
* A distributed live load of 125 psf (5.99 | The building is evaluated for live loads consistent with the use of and occupancy of the facility. | ||
This includes minimum live loads driven by occupancy and non-permanent loads caused by equipment or required during plant operations. | |||
The following categories encompass the live loads for the main production facility: | |||
* A distributed live load of 125 psf (5.99 kP a) is used for areas designated as light manufacturing. | |||
* A distributed live load of 250 psf (12.0 kPa) is used for areas designated as heavy manufacturing. | * A distributed live load of 250 psf (12.0 kPa) is used for areas designated as heavy manufacturing. | ||
Additionally, the following categories are considered as live loads in the areas where they occur: | |||
* Concrete cover block laydown load. | * Concrete cover block laydown load. | ||
* Supercell drum export system and shield gate live load. | * Supercell drum export system and shield gate live load. | ||
Line 401: | Line 887: | ||
* Roof live load. | * Roof live load. | ||
* Equipment live loading. | * Equipment live loading. | ||
snow load is based on a ground snow load of 30 psf (1.44 kPa) with an importance factor of and a mean recurrence interval of 100 years. | SHINE Medical Technologies 3.4-9 Rev. 5 Chapter 3 - Design of Structures, Systems, and Components Seismic Damage | ||
2.6.4.4 | |||
2.6.4.5 | 3.4.2.6.4.3 Snow Load | ||
The snow load is based on a ground snow load of 30 psf (1.44 kPa) with an importance factor of 1.2 and a mean recurrence interval of 100 years. | |||
3.4.2.6.4.4 Wind Load | |||
The wind load is based on a basic wind speed of 90 mph (145 kph) with an importance factor of 1.15 and a mean recurrence interval of 100 years. | |||
3.4.2.6.4.5 Earthquake Load | |||
Dynamic analysis is conducted with a portion of the loads considered as mass sources in the following manner according to SRP Section 3.7.2 (USNRC, 2013a): | |||
* Dead Load 100 percent | * Dead Load 100 percent | ||
* Miscellaneous Load.100 percent | * Miscellaneous Load.100 percent | ||
Line 411: | Line 906: | ||
* Snow Load.75 percent | * Snow Load.75 percent | ||
* Parked Crane Load.100 percent | * Parked Crane Load.100 percent | ||
* Hydrodynamic Load100 percent | * Hydrodynamic Load100 percent | ||
SAP2000 and SASSI2010 models are both | |||
2.6.4.6 | Earthquake load is applied in a SAP2000 model (ver sion 17.2) on an equivalent static basis. The equivalent static model represents the soil as dynamic springs, developed in accordance with ASCE 4-98 (ASCE, 2000). Maximum seismic acceleration at each node of the structure is determined by SSI analysis using SASSI2010, as discussed in Subsection 3.4.2.2. Figures 3.4-3 through 3.4-6 show selected response spectra locations throughout the FSTR. | ||
2.6.4.7 | |||
The SAP2000 and SASSI2010 models are both thr ee-dimensional models that represent the structural elements with equivalent mass and st iffness properties. The lumped masses at each node of the SAP2000 analysis are multiplied by the peak accelerations determined from the SSI analysis to determine an equivalent static earthquake load at each node. The direction of load application is iterated to obtain nine seismic force terms. | |||
3.4.2.6.4.6 Crane Load | |||
The building is evaluated for loads associated with two overhead bridge cranes, one servicing the IU cell area and one servicing the RPF area. Crane loading is evaluated in accordance with American Society for Mechanical Engineers (ASME) NOG-1, Rules for Construction of Overhead and Gantry Cranes (ASME, 2004). | |||
3.4.2.6.4.7 Soil Pressure | |||
Sub-grade walls of the main production facility are designed to resist static lateral earth pressure loads, compaction loads, static earth pressure, dynamic surcharge loads, and elastic dynamic soil pressure loads. Static earth pressure consists of at-rest, active, and passive soil pressure loads, which are applied as required to ensure the stability of the building. | |||
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3.4.2.6.4.8 Fluid Load | |||
hydrostatic loading is calculated based on the actual dimensions of the IU cells and applied | The hydrostatic loading is calculated based on the actual dimensions of the IU cells and applied in the model as lateral hydrostatic pressure on t he walls and vertical hydrostatic pressure on the bottom slabs. | ||
maximize mesh regularity in the model. | The hydrodynamic loading is applied to the mode l by considering hydrodynamic masses rigidly attached to the IU cells in accordance with Section 3.1.6.3 of ASCE 4-98 (ASCE, 2000) and Chapter 6 of TID-7024, Nuclear Reactors and Earthquakes (AEC, 1963). The provisions, as outlined in the referenced documents, require t hat the impulsive and convective masses be applied to the model to capture the dynamic effects due to seismic motion. | ||
3.4.2.6.4.9 Tornado Load | |||
The tornado load is based on a tornado wind spe ed of 230 mph (370 kph) and a tornado missile spectrum as described in Table 2 of Regulatory Guide 1.76 (USNRC, 2007a). The tornado load, Wt, is further defined by the following combinations: | |||
Wt = Wp (Equation 3.4-7) | |||
Wt = Ww + 0.5Wp (Equation 3.4-8) | |||
Wt = Ww + 0.5Wp + Wm (Equation 3.4-9) | |||
Where: | |||
Wp = load from tornado atmospheric pressure change | |||
Ww = load from tornado wind | |||
Wm = load from tornado missile impact | |||
3.4.2.6.4.10 Accidental Eccentricity | |||
As required by Section 3.1.1(e) of ASCE 4-98, Seismic Analysis of Safety-Related Nuclear Structures and Commentary (ASCE, 2000), the structure is evaluated for a torsional moment due to accidental eccentricity. The torsional moment is taken equal to the story shear at the elevation and in the direction of interest times a moment arm equal to 5 percent of the building dimension. | |||
The torsional moment is distributed to the building shear walls based on the relative rigidity of the walls in plane. The loads are applied statically and account for variability in the load direction. | |||
3.4.2.6.5 Structural Analysis Model | |||
A three-dimensional finite element model of the main production facility structure was created using the computer program SAP2000 (version 17.2) to represent the mass and stiffness of the major structural elements, equipment, and components of the FSTR. The model utilizes shell elements to represent slabs and walls, and fr ame elements to represent columns and beams. | |||
Elements are modeled at the geometric centerline of the structural member they represent with the following exceptions: | |||
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* The below grade and mezzanine slabs are model ed at their actual top-of-slab elevation. | |||
* Minor adjustments are made to the dimensions and locations of wall openings to maximize mesh regularity in the model. | |||
* Roof truss locations are adjusted to align with the roof shell element mesh. | * Roof truss locations are adjusted to align with the roof shell element mesh. | ||
adjustments described above are intended to maintain mesh regularity to the extent | |||
2.6.6 | The adjustments described above are intended to maintain mesh regularity to the extent possible. | ||
3 | 3.4.2.6.6 Structural Analysis Results | ||
3.1 | |||
Concrete walls and slabs in the main production fa cility are designed for axial, flexural, and shear loads per provisions of ACI 349-13 (ACI, 2014) considering all applicable design basis load combinations. Walls and slabs are modeled in SAP2000 using shell elements. To determine the longitudinal and transverse reinforcement required within a wall or slab, the design is performed on an element basis. Using resultant forces obtai ned from SAP2000 model data, the element is designed as a reinforced concrete section per ACI 349-13 (ACI, 2014). The required area of steel is determined for combined axial and flexural l oads, in-plane shear loads, and out-of-plane shear loads. Using these results, reinforcement size and spacing is specified. | |||
seismic classifications of SSCs are shown in Table 3.4-1. | |||
3.2 | 3.4.3 SEISMIC CLASSIFICATION AND QUALIFICATION | ||
This subsection discusses the methods by which the SHINE facility SSCs are classified and qualified to ensure functional integrity. | |||
3.4.3.1 Seismic Classification | |||
Facility SSCs, including their foundations and supports, that must perform safety function(s) after an SSE are designated as Seismic Category I. Safety-related SSCs are classified as Seismic Category I. | |||
SSCs that are co-located with a Seismic Category I SSC and must maintain structural integrity in the event of an SSE to prevent unacceptable interactions with a Seismic Category I SSC, but are not required to remain functional, are designated as Seismic Category II. | |||
The seismic classifications of SSCs are shown in Table 3.4-1. | |||
3.4.3.2 Seismic Qualification | |||
In general, one of the following four methods of seismically qualifying the SSCs is chosen based upon the characteristics and complexities of the subsystem: | |||
* Dynamic analysis. | * Dynamic analysis. | ||
* Testing. | * Testing. | ||
* Comparison with existing databases. | * Comparison with existing databases. | ||
* A combination of analysis and testing. | * A combination of analysis and testing. | ||
The methods to be used for qualification are stated below. These methods will depend on the type of equipment and supporting structure. The fo llowing defines some of the possible cases and associated analytical methods which may be used in each case. | |||
3.2.1 | |||
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rigid equipment supported by a rigid | ISRS for the FSTR are used to determine the appropriate seismic design of equipment, piping, and components in the safety-related envelope. For the evaluation of cable and conduit raceway systems, quantitative evaluation criteria are applied only to the most seismically vulnerable portions of these systems. | ||
stresses resulting from each force (in each of the three directions) should be combined by an | |||
3.4.3.2.1 Qualification by Analytical Methods | |||
Analytical calculations may be used as a qualification method when maintaining the structural integrity is an assurance for the safety function. This method can be used for equipment and piping systems when expected response to the earthquake excitations can be characterized as linear or simple non-linear behavior (e.g., piping, skids, and large equipment). | |||
ISRS from Subsection 3.4.2.2 are used in the response spectrum analysis of piping and equipment. These response spectra are used to determine the seismic requirements at the component mounting locations for qualificat ion purposes and for piping subsystem dynamic analysis. | |||
Static Analysis | |||
The equipment, as well as its support, can be cons idered rigid, and may be analyzed by static analysis, if it can be shown that its fundamental natural frequency does not fall in the frequency range below the high frequency asymptote (ZPA) of the required response spectrum (RRS). | |||
For rigid equipment supported by a rigid structur e, the equipment motion shall be the same as the floor motion without amplification. The horizon tal and vertical dynamic accelerations shall be taken as the ZPA from the applicable response spectrum. These acceleration values are used to perform a static analysis. In this case, the dy namic forces are determined by multiplying the mass of the subassembly or parts of the equipment by the ZPA of the RRS. These forces should be applied through the center of gravity of the subassembly or the part of the equipment. | |||
The stresses resulting from each force (in each of the three directions) should be combined by an appropriate combination method to yield the dynamic stresses. The dynamic deflections (deflections due to dynamic loads) may be ca lculated in the same manner. These dynamic stresses and deflections are combined with stresses and deflections from other loads per the load combinations defined in the applicable design codes. | |||
Simplified Dynamic Analysis | |||
A simplified dynamic analysis may be performed in cases where the equipment and support systems natural frequency falls in the frequency range below the high frequency asymptote (ZPA) of the applicable RRS. This is similar to the static analysis described above but requires using different values for the accelerations. The accelerations to be used are obtained from the appropriate ISRS curves at each natural frequency in the frequency range of interest. If the frequency information is not available, the simpli fied dynamic analysis (sometimes referred to as the equivalent static analysis) is performed using 1.5 times the maximum peak of the applicable floor response spectra. Once the dynamic forces are determined using the 1.5 times the peak acceleration values from the RRS, stresses and deformations may be computed following the same procedures used for static analysis. | |||
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Detailed Dynamic Analysis | |||
When acceptable justification for static or simplified dynamic analysis cannot be provided, a detailed dynamic analysis is performed. A mathem atical model may be constructed to represent the dynamic behavior of the equipment. A finite element model may be constructed and analyzed using the response spectrum modal analysis or time-history analysis. The maximum inertia forces, at each mass point, from each mode, are applied at that point to calculate the modal reactions (forces and moments) and modal defor mations (translations and rotations). The various modal contributions are combined by an appropriate combination method. Closely spaced modes are combined by using an approach from Regulatory Guide 1.92 (USNRC, 2012). | |||
The stresses and deflections resulting from each of the three directions are combined to obtain the dynamic stresses and deflections. These dy namic stresses and deflections are combined with stresses and deflections from other loads per the load combinations defined in the applicable design codes. | |||
3.4.3.2.2 Qualification by Tests | |||
3.2.2 | |||
Seismic qualification by testing is the preferred method of qualification for complex equipment not suitable for analysis, and for equipment required to perform an active function (e.g., valves and instrumentation). Qualification by testing may be performed using applicable procedures specified by Institute of Electrical and Electron ics Engineers (IEEE) and/or ASME qualification of active mechanical equipment (QME) standards. | |||
The vibration inputs for the seismic tests are the response spectra or Required Input Motion (typical for line-mounted equipment) at the mounti ng location of the equipment. ISRS are used to develop Test Response Spectra for testing. | |||
Table 3.4 Seismic Classification of Structures, Systems, and Components Seismic System, Structure, and Component | The test samples shall be mounted to simula te the recommended service mounting. If this cannot be done, the effect of the actual supporting structure shall be considered in determination of the input motion. The project specification will state the expected (or calculated) piping nozzle reaction loads on the equipment which shall be used in the qualification. Any other loads that may act on the component (mechanical, electrical, or instrument) during the postulated dynamic event must be simulated during the test, unless t he supporting test (or calculations) shows that they are insignificant. | ||
At the completion of the tests, inspection shall be made by the test conductor to assure that no structural damage has occurred. Sufficient monitoring devices shall be used to evaluate the performance of the active components during the tests. For acceptability, the components shall demonstrate their ability to perform their in tended safety functions when subjected to all applicable loads. | |||
3.4.3.2.3 Comparison with Existing Databases | |||
ISRS are used to develop RRS for comparison with existing response from a database. The candidate equipment must be similar to equipment in the existing seismic experience databases. | |||
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3.4.3.2.4 Combined Methods of Qualification | |||
Based on the available information, component complexity, and functional requirements, the above mentioned analytical and test methods may be combined in various sequence and content to achieve seismic qualification of the subject components. | |||
3.4.4 SEISMIC INSTRUMENTATION | |||
Seismic instrumentation is not required under Section IV(a)(4) of Appendix S to 10 CFR 50 or Section VI(a)(3) of Appendix A to 10 CFR 100 because the main production facility is not a nuclear power plant. However, the facility has nonsafety-related seismic instrumentation to record accelerations experienced at the site during a seismic event. | |||
The seismic instrumentation establishes the acceptability of continued operation of the plant following a seismic event. This system provides acceleration time histories or response spectra experienced at the facility to assist in verifying that safety-related SSCs at the main production facility can continue to perform their safety functions. | |||
Seismic monitoring is performed by the process integrated control system (PICS), which is described in Section 7.3. Indication of a seismic event results in an alarm in the facility control room. | |||
3.4.5 SEISMIC ENVELOPE DESIGN FOR EXTERNAL HAZARDS | |||
3.4.5.1 AIRCRAFT IMPACT ANALYSIS | |||
The safety-related structures at the SHINE facility are evaluated for aircraft impact loading resulting from small aircraft which frequent t he Southern Wisconsin Regional Airport (SWRA). | |||
The analysis consists of a global impact res ponse analysis and a local impact response analysis. | |||
The global impact response analysis is performed using the energy balance method, consistent with U.S. Department of Energy (DOE) Standard DOE-STD-3014-2006 (DOE, 2006). The permissible ductility limit for reinforced concrete elements is in accordance with Appendix F of ACI 349-13 (ACI, 2014). The permissible ductility limit for truss members is determined from Chapter NB of ANSI/AISC N690-12 (ANSI/AISC, 2012). The calculated values are then used to create the appropriate elastic or elastic-plastic load deflection curves. From these curves, the available energy absorption capacity of the structure at the critical impact locations is determined. The Challenger 605 was selected as the critical aircraft for the global impact analysis based on a study of the airport operat ions data. The Challenger 605 is evaluated as a design basis aircraft impact. The probabilistic distributions of horizontal and vertical velocity of impact are determined from Attachment E of Lawrence Livermore National Laboratory UCRL-ID-123577 (UCRL, 1997) to correspond to 99.5 percent of impact velocity probability distribution. | |||
Each wall that protects safety-related equipment was evaluated for perpendicular impacts at the center of the wall panel and at critical locations near the edge of the wall panel. Each roof that protects safety-related equipment was evaluated for perpendicular impacts near the end of the roof truss, at the center of the roof truss, at the center of the roof panel between trusses or walls. | |||
The evaluation of the roof slab for horizontal se ismic loading bounds any aircraft impact scenario | |||
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that produces lateral forces, so horizontal aircraft impact scenarios are not explicitly evaluated for the roof. | |||
The local response evaluation was conducted us ing empirical equations in accordance with DOE-STD-3014-2006 (DOE, 2006). The structure wa s shown to resist scabbing and perforation. | |||
A punching shear failure was not postulated becaus e all sections are shown to have a thickness 20 percent greater than the thickness required to prevent perforation, based on Appendix F of ACI 349-13 (ACI, 2014). Scabbing and perforati on thickness requirement was calculated using DOE-STD-3014-2006 (DOE, 2006). | |||
Because engine diameter and engine weight are both critical for the local evaluation, the local impact evaluation was performed for the Hawker 400 as well as the Challenger 605 aircraft. The Challenger 605 and Hawker 400 are evaluated as design basis aircraft impacts. | |||
To evaluate the capability of the structure to with stand impact from an aircraft, each wall that is subject to potential impact from an aircraft missile is evaluated. Figure 3.4-7 shows the openings in the building which are evaluated as missile barriers. | |||
The design basis aircraft impacts have been ev aluated against the acceptance criteria of ACI 349-13 (ACI, 2014) for concrete and ANSI/AISC N690-12 (ANSI/AISC, 2012) for steel and it has been demonstrated that all components of the FSTR structure that are relied upon to provide impact protection have adequate energy absorption capacity to perform their design basis function. | |||
3.4.5.2 EXPLOSION HAZARDS | |||
Because the SHINE facility is not licensed as an operating nuclear reactor, explosions postulated as a result of the design basis threat as defined in Regulatory Guide 5.69, Guidance for the Application of Radiological Sabotage Design-Basis Threat in the Design, Development and Implementation of a Physical Security Program that Meets 10 CFR 73.55 Requirements (USNRC, 2007e), are not considered. However, ac cidental explosions due to transportation or storage of hazardous materials outside the facility and accidental explosions due to chemical reactions inside the facility are assessed. | |||
The maximum overpressure at any safety-related area of the facility from any credible external source is discussed in Subsection 2.2.3). The seismic area is protected by outer walls and roofs consisting of reinforced concrete robust enough to withstand credible external explosions as defined in Regulatory Guide 1.91, Revision 2, Evaluations of Explosions Postulated to Occur at Nearby Facilities and on Transportation Routes Near Nuclear Power Plants (USNRC, 2013c). | |||
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Table 3.4 Seismic Classification of Structures, Systems, and Components | |||
Seismic System, Structure, and Component Acronym Category Engineered safety features actuation system ESFAS I Facility fire detection and suppression system FFPS II Facility structure FSTR I Iodine and xenon purification and packaging IXP I Irradiation cell biological shield ICBS I Light water pool system LWPS I Material handling system MHS II Molybdenum extraction and purification system MEPS I Neutron driver assembly system NDAS I Neutron flux detection system NFDS I Nitrogen purge system N2PS I Normal electrical power supply system NPSS I Primary closed loop cooling system PCLS I Process vessel vent system PVVS I Production facility biological shield PFBS I Radioactive drain system RDS I Radioactive liquid waste immobilization RLWI I Radioactive liquid waste storage RLWS I Radiological ventilation zone 1 RVZ1 I Radiological ventilation zone 2 RVZ2 I Radiological ventilation zone 3 RVZ3 I Subcritical assembly system SCAS I Target solution preparation system TSPS I Target solution staging system TSSS I Tritium purification system TPS I Target solution vessel (TSV) off-gas system TOGS I TSV reactivity protection system TRPS I Uninterruptible electrical power supply system UPSS I Uranium receipt and storage system URSS I Vacuum transfer system VTS I | |||
Note: The seismic category listed is the highest fo r the system. Portions of the system may have a lower seismic categorization. | |||
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Figure 3.4 View Looking Southwest of the Representative Concrete Sections | |||
Full structure (looking southeast) | Full structure (looking southeast) | ||
Full structure from below El. 0 ft. (looking southeast) | Full structure from below El. 0 ft. (looking southeast) | ||
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Chapter 3 - Design of Structures, Systems, and Co mponentsSeismic Damage | |||
Figure 3.4 Cross Section of Structural Model | |||
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nitrogen purge system (N2PS) structure is a safety-related structure which contains a | Chapter 3 - Design of Structures, Systems, and Components Systems and Components | ||
1 | |||
3.5 SYSTEMS AND COMPONENTS | |||
The SHINE facility structure, system, and co mponent (SSC) designs are based on the SHINE design criteria described in Section 3.1. | |||
The design of the SHINE facility and systems is based on defense-in-depth practices. Defense-in-depth practices means a design philosophy, appli ed from the outset and through completion of the design, that is based on providing successive le vels of protection such that health and safety are not wholly dependent upon any single element of the design, construction, maintenance, or operation of the facility. The net effect of incorporating defense-in-depth practices is a conservatively designed facility and systems t hat exhibit greater tolerance to failures and external challenges. | |||
The SHINE facility and system design incorporat es a preference for engineered controls over administrative controls, independence to avoid co mmon mode failures, and incorporates other features that enhance safety by reducing chal lenges to safety-related components and systems. | |||
Physical separation and electrical isolation are used to maintain the independence of safety-related control circuits and equipment among redundant safety divisions or with nonsafety systems so that the safety functions required during and following design basis events can be accomplished. | |||
Redundancy is also incorporated into system designs. Two divisions of safety-related protection systems and two divisions of safety-related emergency power are provided for active engineered controls that depend on control and/or continued power to perform their safety functions. Active engineered safety-related SSCs requiring control or power may be reduced to a single division when redundancy of the function is provided by other means (e.g., when a check valve is used in combination with an automatically actuated isolation valve). | |||
The design bases for the SSCs of the SHINE faci lity are described in detail throughout the FSAR. | |||
The FSAR sections where SSCs are described also provide information that is used in the technical specifications. This includes limitin g conditions for operation, setpoints, design features, and means for accomplishing surveillances. In addition, these FSAR sections also present information that is applicable to, and may be referenced by, the technical specification bases. | |||
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3.6 NITROGEN PURGE SYSTEM STRUCTURE | |||
The nitrogen purge system (N2PS) structure is a safety-related structure which contains a portion of the N2PS. The N2PS structure is located adjacent to the main production facility, as shown in Figure 1.3-3. | |||
3.6.1 METEOROLOGICAL DAMAGE | |||
The N2PS structure is designed to withstand the same potential meteorological damage as described in Section 3.2 for the main production facility structure (FSTR). The Regulatory Guides, codes, and standards associated with the FSTR analysis described in Section 3.2 are applicable to the N2PS structure. Rain loading is not considered in the structural design of the N2PS structure as the sloped roof does not result in rain accumulation. As a result of the lack of rain accumulation, load due to ice is anticipated to be minimal and is enveloped by the design snow load. The N2PS structure is categorized as an enclosed building and, as a result, both external and internal pressures are applied to the structure when considering wind loading. | |||
Wind, tornado, and snow loading is applied to the N2PS structure as described in Section 3.2 for the FSTR with the following exceptions: | |||
* The applied N2PS structure uniform snow load of 60 pounds per square foot (psf) is conservative considering 30 psf ground snow load with 1.2 importance factor for the 100-years mean recurrence interval. | * The applied N2PS structure uniform snow load of 60 pounds per square foot (psf) is conservative considering 30 psf ground snow load with 1.2 importance factor for the 100-years mean recurrence interval. | ||
* The N2PS structure tornado load includes tornado generated missile load, tornado wind load, and differential pressure consistent with the methodology described in Section 3.2 for the FSTR; however, normal wind load is not considered because the tornado wind load bounds the normal wind load. | * The N2PS structure tornado load includes tornado generated missile load, tornado wind load, and differential pressure consistent with the methodology described in Section 3.2 for the FSTR; however, normal wind load is not considered because the tornado wind load bounds the normal wind load. | ||
* Due to the proximity of the N2PS structure to the main production facility, tornado missile protection is not required for penetrations in the N2PS structure on the west wall facing the FSTR as the FSTR shields that wall from tornado generated missiles. | * Due to the proximity of the N2PS structure to the main production facility, tornado missile protection is not required for penetrations in the N2PS structure on the west wall facing the FSTR as the FSTR shields that wall from tornado generated missiles. | ||
2 | |||
3.6.2 WATER DAMAGE | |||
3.6.2.1 External Flooding | |||
The main production facility design basis precipitation, flood levels, and ground water levels, provided in Section 3.3, are also applicable to the N2PS structure, and are as follows: | |||
* Design basis flood level: 50 feet (ft.) (15.2 meters [m]) below grade. | * Design basis flood level: 50 feet (ft.) (15.2 meters [m]) below grade. | ||
* Design basis precipitation level: at grade. | * Design basis precipitation level: at grade. | ||
* Maximum ground water level: 50 ft. (15.2 m) below grade. | * Maximum ground water level: 50 ft. (15.2 m) below grade. | ||
Per Subsection 2.4.2.3, a local probable maximum precipitation (PMP) event creates a water level about level with grade. The N2PS structure floor is raised at least 4 inches above grade; therefore, water will not infiltrate the door openings in the case of a local PMP event. | |||
3 | |||
Per Subsection 2.4.3, a local probable maximum flood (PMF) event creates a water level approximately 50 ft. (15.2 m) below grade. The lowest point in the N2PS structure is above grade; therefore, flooding does not cause any structural loading in the case of a local PMF event. | |||
SHINE Medical Technologies 3.6-1 Rev. 0 Chapter 3 - Design of Structures, Systems, and Components Nitrogen Purge System Structure | |||
3.6.2.2 Internal Flooding | |||
There is no risk of internal flooding as there are no water sources internal to the N2PS structure. | |||
3.6.3 SEISMIC DAMAGE | |||
The N2PS structure seismic analysis is based on the equivalent static load method and uses the seismic analysis of the FSTR described in Section 3.4. The N2PS structure seismic loads are calculated using the in-structure-response-spectra (ISRS) for FSTR grade level with an amplification factor of 1.5. The N2PS structure se ismic analysis can be realistically represented by a simple model, and the equivalent static load method with a 1.5 amplification factor produces conservative results in terms of responses. The N2PS structure has a footprint of approximately 42 ft. by 13 ft., and is located adjacent to the FSTR, which has an approximate footprint of 212 ft. | |||
by 158 ft. The N2PS structure seismic analysis, based on the equivalent static load method, conservatively accounts for relative motion. Co mparing the two structures and locations, the N2PS structure response will be driven by the FSTR response and the N2PS structure will not affect the FSTR response. The use of FSTR grade level ISRS at N2PS structure grade level, with an amplification factor of 1.5, conservatively ac counts for the structure-soil-structure interaction (SSSI) effects of the FSTR structure on the N2PS structure. | |||
SHINE Medical Technologies 3.6-2 Rev. 0 Chapter 3 - Design of Structures, Systems, and Components References | |||
==3.7 REFERENCES== | |||
ACI, 2014. Code Requirements for Nuclear Safety-Related Concrete Structures and Commentary, ACI 349-13, American Concrete Institute, 2014. | |||
AEC, 1963. Nuclear Reactors and Earthquakes, TID-7024, U.S. Atomic Energy Commission, August 1963. | |||
ANSI/AISC, 2012. Specification for Safety-Related St eel Structures for Nuclear Facilities, ANSI/AISC-N690, American National Standards Institute/American Institute of Steel Construction, 2012. | |||
ASCE, 2000. Seismic Analysis of Safety-Related Nuclear Structures and Commentary, ASCE 4-98, American Society of Civil Engineers, 2000. | |||
ASCE, 2006. Minimum Design Loads for Buildings and Other Structures, ASCE 7-05, American Society of Civil Engineers, 2006. | |||
ASCE/SEI, 2005. Seismic Design Criteria for Structures, Systems, and Components in Nuclear Facilities, ASCE 43-05, American Society of Civil Engineers, 2005. | |||
ASME, 2004. Rules for Construction of Overhead and Gantry Cranes, ASME NOG-1, American Society of Mechanical Engineers, 2004. | |||
ASTM, 2016. Standard Specification for Deformed and Plai n Low-Alloy Steel Bars for Concrete Reinforcement, ASTM A706/A706M-16, American Society for Testing and Materials, 2016. | |||
DOE, 2006. Accident Analysis for Airc raft Crash into Hazardous Facilities, DOE-STD-3014-2006, U.S. Department of Energy, 2006. | |||
NFPA, 2008. Standard for Fire Protection for Facilities Handling Radioactive Materials, NFPA 801-2008, National Fire Protection Association, 2008. | |||
UCRL, 1997. Hossain, Q.A., R.P. Kennedy, R.C. Murray, K. Mutreja, and B.P. Tripathi, Structures, Systems, and Components Evaluation Technical Support Documents, DOE Standard, Accident Analysis for Aircraft Crash into Hazardous Facilities, UCRL-ID-123577, Lawrence Livermore National Laboratory, 1997. | |||
USNRC, 1978. Development of Floor Design Response Spectra for Seismic Design of Floor-Supported Equipment or Components, Regulatory Guide 1.122, Revision 1, U.S. Nuclear Regulatory Commission, 1978. | |||
USNRC, 2007a. Design Basis Tornado and Tornado Missiles for Nuclear Power Plants, Regulatory Guide 1.76, Revision 1, U.S. Nuclear Regulatory Commission, 2007. | |||
USNRC, 2007b. Barrier Design Procedures, NUREG-0800, Subsection 3.5.3, Revision 3, U.S. Nuclear Regulatory Commission, 2007. | |||
USNRC, 2007c. Tornado Loads, NUREG-0800, Subsection 3.3.2, Revision 3, U.S. Nuclear Regulatory Commission, 2007. | |||
SHINE Medical Technologies 3.7-1 Rev. 2 Chapter 3 - Design of Structures, Systems, and Components References | |||
USNRC, 2007d. Damping Values for Seismic Design of Nuclear Power Plants, Regulatory Guide 1.61, Revision 1, U.S. Nuclear Regulatory Commission, 2007. | |||
USNRC, 2007e. Guidance for the Application of Radiological Sabotage Design-Basis Threat in the Design, Development and Implementation of a Physical Security Program that Meets 10 CFR 73.55 Requirements, Regulatory Guide 5.69, U.S. Nuclear Regulatory Commission, 2007. | |||
USNRC, 2012. Combining Modal Responses and Spatial Components in Seismic Response Analysis, Regulatory Guide 1.92, Revision 3, U.S. Nuclear Regulatory Commission, 2012. | |||
USNRC, 2013a. Seismic System Analysis, NUREG-0800, Subsection 3.7.2, Revision 4, U.S. Nuclear Regulatory Commission, 2013. | |||
USNRC, 2013b. Foundations, NUREG-0800, Subsection 3.8.5, Revision 4, U.S. Nuclear Regulatory Commission, 2013. | |||
USNRC, 2013c. Evaluations of Explosions Postulated to Occur at Nearby Facilities and on Transportation Routes Near Nuclear Power Plants, Regulatory Guide 1.91, Revision 2, U.S. Nuclear Regulatory Commission, 2013. | |||
USNRC, 2014a. Design Response Spectra for Seismic Design of Nuclear Power Plants, Regulatory Guide 1.60, Revision 2, U.S. Nuclear Regulatory Commission, 2014. | |||
USNRC, 2014b. Seismic Design Parameters, NUREG-0800, Subsection 3.7.1, Revision 4, U.S. Nuclear Regulatory Commission, 2014. | |||
SHINE Medical Technologies 3.7-2 Rev. 2}} | |||
Revision as of 18:47, 18 November 2024
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Site: | SHINE Medical Technologies |
Issue date: | 01/26/2022 |
From: | SHINE Technologies, SHINE Health. Illuminated |
To: | Office of Nuclear Reactor Regulation |
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Text
Chapter 3 - Design of Structures, Systems, and Components Table of Contents
CHAPTER 3
DESIGN OF STRUCTURES, SYSTEMS, AND COMPONENTS
TABLE OF CONTENTS
Section Tit le Page
3.1 DESIGN CRITERIA.............................................................................................. 3.1-1
3.2 METEOROLOGICAL DAMAGE........................................................................... 3.2-1
3.2.1 WIND LOADING................................................................................. 3.2-1
3.2.2 TORNADO LOADING........................................................................ 3.2-2
3.2.3 SNOW, ICE, AND RAIN LOADING.................................................... 3.2-3
3.3 WATER DAMAGE................................................................................................ 3.3-1
3.3.1 FLOOD PROTECTION....................................................................... 3.3-1
3.3.2 STRUCTURAL DESIGN FOR FLOODING........................................ 3.3-3
3.4 SEISMIC DAMAGE.............................................................................................. 3.4-1
3.4.1 SEISMIC INPUT................................................................................. 3.4-3
3.4.2 SEISMIC ANALYSIS OF FACILITY STRUCTURES.......................... 3.4-4
3.4.3 SEISMIC CLASSIFICATION AND QUALIFICATION....................... 3.4-12
3.4.4 SEISMIC INSTRUMENTATION....................................................... 3.4-15
3.4.5 SEISMIC ENVELOPE DESIGN FOR EXTERNAL HAZARDS......... 3.4-15
3.5 SYSTEMS AND COMPONENTS......................................................................... 3.5-1
3.6 NITROGEN PURGE SYSTEM STRUCTURE...................................................... 3.6-1
3.6.1 METEOROLOGICAL DAMAGE......................................................... 3.6-1
3.6.2 WATER DAMAGE.............................................................................. 3.6-1
3.6.3 SEISMIC DAMAGE............................................................................ 3.6-2
3.7 REFERENCES
..................................................................................................... 3.7-1
SHINE Medical Technologies 3-i Rev. 1 Chapter 3 - Design of Structures, Systems, and Components List of Tables
LIST OF TABLES Number Tit le
3.1-1 Safety-Related Structures, Systems, and Components
3.1-2 Nonsafety-Related Structures, Systems, and Components
3.1-3 SHINE Design Criteria
3.4-1 Seismic Classification of Structures, Systems, and Components
SHINE Medical Technologies 3-ii Rev. 0 Chapter 3 - Design of Structures, Systems, and Components List of Figures
LIST OF FIGURES Number Tit le
3.4-1 View Looking Southwest of the Representative Concrete Sections
3.4-2 Cross Section of Structural Model
3.4-3 Selected Response Spectra, Exterior Locations (Looking Southeast)
3.4-4 Selected Response Spectra, Exterior Locations (Looking Northwest)
3.4-5 Selected Response Spectra Locations At Grade Slab
3.4-6 Selected Response Spectra Locations Below Grade Slab
3.4-7 Building Envelope Openings Evaluated as Missile Barriers
SHINE Medical Technologies 3-iii Rev. 0 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations
ACRONYMS AND ABBREVIATIONS
Acronym/Abbreviation Definition
ACI American Concrete Institute
AISC American Institute of Steel Construction
ANSI American National Standards Institute
ASCE American Society of Civil Engineers
ASME American Society of Mechanical Engineers
BE best estimate
CAAS criticality accident alarm system
CAMS continuous air monitoring system
cm centimeter
DOE U.S. Department of Energy
E/W east-west
ELTG emergency lighting system
ESFAS engineered safety features actuation system
FACS facility access control system
FCHS facility chilled water system
FCRS facility chemical reagent system
SHINE Medical Technologies 3-iv Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations
ACRONYMS AND ABBREVIATIONS
Acronym/Abbreviation Definition
FDCS facility data and communications system
FDWS facility demineralized water system
FFPS facility fire detection and suppression system
FGLP facility grounding and lightning protection system
FHWS facility heating water system
FNHS facility nitrogen handling system
FPWS facility potable water system
FSDS facility sanitary drains system
FSTR facility structure
ft. feet
ft2 square feet
ft3 cubic feet
FVZ4 facility ventilation zone 4
HCFD hot cell fire detection and suppression system
HVAC heating, ventilation, and air conditioning
Hz hertz
SHINE Medical Technologies 3-v Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations
ACRONYMS AND ABBREVIATIONS
Acronym/Abbreviation Definition
IAEA International Atomic Energy Agency
ICBS irradiation cell biological shield
IEEE Institute of Electrical and Electronics Engineers
IF irradiation facility
in. inch
ISRS in-structure response spectra
IU irradiation unit
IXP iodine and xenon purification and packaging
kg/m3 kilogram per cubic meter
kPa kilopascal
kph kilometers per hour
LABS quality control and analytical testing laboratories
LB lower bound
lb/ft2 pounds per square foot
lb/ft3 pounds per cubic foot
LWPS light water pool system
SHINE Medical Technologies 3-vi Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations
ACRONYMS AND ABBREVIATIONS
Acronym/Abbreviation Definition
m meter
m3 cubic meter
m/s meters per second
MEPS molybdenum extraction and purification system
MHS material handling system
MIPS molybdenum isotope product packaging system
mph miles per hour
N/S north-south
N2PS nitrogen gas purge system
NDAS neutron driver assembly system
NFDS neutron flux detection system
NFPA National Fire Protection Association
NPSS normal electrical power supply system
NSC NDAS service cell
PCHS process chilled water system
PCLS primary closed loop cooling system
SHINE Medical Technologies 3-vii Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations
ACRONYMS AND ABBREVIATIONS
Acronym/Abbreviation Definition
PFBS production facility biological shield system
PGA peak ground acceleration
PICS process integrated control system
PMF probable maximum flood
psf pounds per square foot
psi pounds per square inch
PVVS process vessel vent system
QME qualification of active mechanical equipment
RAMS radiation area monitoring system
RCA radiologically controlled area
RDS radioactive drain system
RLWI radioactive liquid waste immobilization
RLWS radioactive liquid waste storage
RPCS radioisotope process facility cooling system
RPF radioisotope production facility
RRS required response spectrum
SHINE Medical Technologies 3-viii Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations
ACRONYMS AND ABBREVIATIONS
Acronym/Abbreviation Definition
RVZ1 radiological ventilation system zone 1
RVZ2 radiological ventilation system zone 2
RVZ3 radiological ventilation system zone 3
SCAS subcritical assembly system
SGS standby generator system
SRMS stack release monitoring system
SRP Standard Review Plan for the Review of Safety Analysis for Nuclear Power Plants
SRSS square root of the sum of the squares
SRWP solid radioactive waste packaging
SSC structure, system, or component
SSI soil-structure interaction
SWRA Southern Wisconsin Regional Airport
TEDE total effective dose equivalent
TOGS TSV off-gas system
TPS tritium purification system
SHINE Medical Technologies 3-ix Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Acronyms and Abbreviations
ACRONYMS AND ABBREVIATIONS
Acronym/Abbreviation Definition
TRPS TSV reactivity protection system
TSPS target solution preparation system
TSSS target solution staging system
TSV target solution vessel
UB upper bound
UPSS uninterruptible electrical power supply system
URSS uranium receipt and storage system
VTS vacuum transfer system
ZPA zero period acceleration
SHINE Medical Technologies 3-x Rev. 1 Chapter 3 - Design of Structures, Systems, and Components Design Criteria
CHAPTER 3 - DESIGN OF STRUCTURES, SYSTEMS, AND COMPONENTS
3.1 DESIGN CRITERIA
Structures, systems, and components (SSCs) present in the SHINE facility are identified in Tables 3.1-1 and 3.1-2, including the applicable FSAR section(s) which describe each SSC and the applicable SHINE design criteria. Design criter ia derived from external codes, guides, and standards specific to the design, construction, or inspection of SSCs are included in the applicable FSAR section describing those SSCs. For each SSC, the FSAR section identifies location, function, modes of operation, and type of actuation for specific SSCs, as applicable.
Nuclear Safety Classification
Safety-related SSCs at SHINE are those physical SSCs whose intended functions are to prevent accidents that could cause undue risk to health and safety of workers and the public; and to control or mitigate the consequences of such accidents.
Acceptable risk is achieved by ensuring that events are highly unlikely or by reducing consequences less than the SHINE safety criteria. The SHINE safety criteria are:
- An intake of 30 milligrams or greater of uranium in a soluble form by any individual located outside the owner controlled area.
- An acute chemical exposure to an individual from licensed material or hazardous chemicals produced from licensed ma terial that could lead to irreversible or other serious, long-lasting health effects to a worker or coul d cause mild transient health effects to any individual located outside the owner controlled area.
- Criticality where fissionable material is used, handled, or stored (with the exception of the target solution vessel).
- Loss of capability to reach safe shutdown conditions.
Some SSCs are nonsafety-related but perform functions that impact safety-related SSCs. These nonsafety-related SSCs have design basis requ irements necessary to prevent unfavorable interactions with safety-related SSCs due to failure of the nonsafety-related SSCs.
Safety-related SSCs are identified in Table 3.1-1 and nonsafety-related SSCs are identified in Table 3.1-2.
SHINE Design Criteria
The SHINE facility uses design criteria to ensur e that the SSCs within the facility demonstrate adequate protection against the hazards present. The design criteria are selected to cover:
- The complete range of irradiation facility and radioisotope production facility operating conditions.
- The response of SSCs to anticipated transients and potential accidents.
- Design features for safety-related SSCs including redundancy, environmental qualification, and seismic qualification.
SHINE Medical Technologies 3.1-1 Rev. 5 Chapter 3 - Design of Structures, Systems, and Components Design Criteria
- Inspection, testing, and maintenance of safety-related SSCs.
- Design features to prevent or mitigate th e consequences of fires, explosions, and other manmade or natural conditions.
- Quality standards.
- Analyses and design for meteorological, hydrological, and seismic effects.
- The bases for technical specifications necess ary to ensure the availability and operability of required SSCs.
The SHINE design criteria are described in Table 3.1-3.
Key terms used in Table 3.1-3 include primary system boundary, primary confinement boundary, and process confinement boundary, which are defined in Sections 4a2.2, 6a2.2, and 6b.2, respectively.
SHINE Medical Technologies 3.1-2 Rev. 5 Chapter 3 - Design of Structures, Systems, and Components Design Criteria
Table 3.1 Safety-Related Structures, Systems, and Components (Sheet 1 of 2)
Structure, System, or Component (SSC) Acronym Section Applicable Design Criteria Engineered safety features ESFAS 7.1.3 13-19, 37-39 actuation system 7.5 Facility structure FSTR 3.4.2 29-32, 34 Hot cell fire detection and HCFD 9a2.3 29-34, 37 suppression system Irradiation cell biological shield ICBS 4a2.1 29-34, 36 4a2.5 Iodine and xenon purification IXP 4b.1.3 29-34, 36, 37, 39 and packaging 4b.3.1 Light water pool system LWPS 4a2.1 25, 29-32, 36 4a2.4.2 Molybdenum extraction and MEPS 4b.1.3 29-34, 36, 37, 39 purification system 4b.3 Neutron driver assembly NDAS 4a2.1 29-34 system 4a2.3 4a2.1 Neutron flux detection system NFDS 7.1.7 13-19 7.8 3.6 Nitrogen purge system N2PS 6b.2.3 39 9b.6.2 Normal electrical power supply NPSS 8a2.1 27, 28 system Primary closed loop cooling PCLS 4a2.1 9, 12, 21, 29-34 system 5a2.2 Process vessel vent system PVVS 4b.1.3 29-36, 39 9b.6.1 Production facility biological PFBS 4b.2 29-34, 36 shield Radioactive drain system RDS 9b.7.6 29-34, 36, 37, 39 Radioactive liquid waste RLWI 9b.7.3 35-37 immobilization Radioactive liquid waste RLWS 4b.1.3 29-37, 39 storage 9b.7.4
SHINE Medical Technologies 3.1-3 Rev. 5 Chapter 3 - Design of Structures, Systems, and Components Design Criteria
Table 3.1 Safety-Related Structures, Systems, and Components (Sheet 2 of 2)
Structure, System, or Component (SSC) Acronym Section Applicable Design Criteria Radiological ventilation RVZ1 zones 1, 2, and 3 RVZ2 9a2.1 29-36, 39 RVZ3 Subcritical assembly system SCAS 4a2.1 9-12, 20, 22-24, 29-34, 36, 39 4a2.2 Target solution preparation 4b.1.3 system TSPS 4b.4.2 29-34, 36, 37 9b.2.3, 4b.1.3 Target solution staging system TSSS 4b.4 29-34, 36, 37, 39 9b.2.4 Tritium purification system TPS 4a2.1 29-36, 38 9a2.7.1 TSV off-gas system TOGS 4a2.1 9, 12, 20, 22-24, 29-34, 36, 39 4a2.8 TSV reactivity protection TRPS 7.1.2 13-19, 38, 39 system 7.4 Uninterruptible electrical UPSS 8a2.2 27. 28 power supply system Uranium receipt and storage URSS 4b.1.3 36, 37 system 4b.4.2 Vacuum transfer system VTS 4b.1.3 29-34, 36, 37, 39 9b.2.5
Note 1: This table contains SSCs where at l east one constituent component is classified as safety-related.
Note 2: The generally-applicable design criteria 1-8 from Table 3.1-3 are not specifically listed even though they are generally applicable to most SSCs.
Note 3: Instrumentation, control and protection system-related design criteria 13-19 from Table 3.1-3 are only applied to the ESFAS, TRPS, and NFDS (i.e., the safety-related instrumentation and control systems). Other systems that include safety-related instrumentation that provides input to the safety-related instrumentation and control systems implement these criteria via flow down requirements from the safety-related instrumentation and control systems.
SHINE Medical Technologies 3.1-4 Rev. 5 Chapter 3 - Design of Structures, Systems, and Components Design Criteria
Table 3.1 Nonsafety-Related Structures, Systems, and Components (Sheet 1 of 2)
Structure, System, or Component (SSC) Acronym Section Applicable Design Criteria Criticality accident alarm CAAS 6b.3.3 37 system Continuous air monitoring CAMS 7.7.4 13, 38 system Facility access control system FACS 12.8 -
Facility chemical reagent FCRS 9b.7.10 -
system Facility chilled water supply FCHS 9a2.1.3 -
and distribution system Facility data and FDCS 9a2.4 -
communications system Facility demineralized water FDWS 5a2.6 -
system Facility fire detection and FFPS 9a2.3 37 suppression system Facility heating water system FHWS 9a2.1.4 -
Facility nitrogen handling FNHS 9b.7.8 -
system Facility potable water system FPWS 9b.7.7 -
Facility sanitary drains system FSDS 9b.7.9 -
Facility ventilation zone 4 FVZ4 9a2.1 -
Material handling system MHS 9b.7.2 -
Molybdenum isotope product MIPS 9b.7.1 36 packaging system NDAS service cell NSC 9a2.7.2 -
Process chilled water system PCHS 5a2.4 26 Process integrated control PICS 7.3 13 system Quality control and analytical LABS 9b.2 36, 37 testing laboratories 9b.5 Radiation area monitoring RAMS 7.7.3 13, 38 system Radioisotope process facility RPCS 5a2.3 26 cooling system
SHINE Medical Technologies 3.1-5 Rev. 5 Chapter 3 - Design of Structures, Systems, and Components Design Criteria
Table 3.1 Nonsafety-Related Structures, Systems, and Components (Sheet 2 of 2)
Structure, System, or Component (SSC) Acronym Section Applicable Design Criteria Solid radioactive waste SRWP 9b.7.5 35-37 packaging Stack release monitoring SRMS 7.7.5 13, 38 system Standby generator system SGS 8a2.2 27, 28
Note 1: The generally-applicable design criteria 1-8 from Table 3.1-3 are not specifically listed. See corresponding FSAR section(s) for detailed discussions of SSC design.
SHINE Medical Technologies 3.1-6 Rev. 5
Chapter 3 - Design of Structures, Systems, and Components Meteorological Damage
3.2 METEOROLOGICAL DAMAGE
3.2.1 WIND LOADING
This subsection discusses the criteria used to design the main production facility for protection from wind loading conditions.
3.2.1.1 Applicable Design Parameters
The main production facility structure is designed to withstand wind pressures based on a basic wind velocity of 90 miles per hour (mph) (145 ki lometers per hour [kph]) adjusted for a mean recurrence interval of 100 years, per Figure 6-1 and Table C6-7 of American Society of Civil Engineers/Structural Engineering Institute (ASCE), Standard 7-05, Minimum Design Loads for Buildings and Other Structures (ASCE, 2006).
3.2.1.2 Determination of Applied Forces
The design wind velocity is converted to velocity pressure in accordance with Equation 6-15 of ASCE 7-05 (ASCE, 2006):
qz = 0.00256KzKztKdV2I (pounds per square foot [lb/ft2]) (Equation 3.2-1)
Where:
Kz = velocity pressure exposure coefficient evaluated at height (z) in Table 6-3 of ASCE 7-05 equal to 1.13
Kzt = topographic factor as defined in Section 6.5.7 of ASCE 7-05 equal to 1.0
Kd = wind directionality factor in Table 6-4 of ASCE 7-05 equal to 0.85
V = basic wind speed (3-second gust) obtained from Figure 6-1 of ASCE 7-05 for Wisconsin equal to 90 mph and increased by a factor of 1.07 to account for a 100-year recurrence interval
I = importance factor equal to 1.15
Additional discussion of site design parameters related to wind loading is provided in Subsection 3.4.2.6.3.7.
The design wind pressures and forces for the building at various heights above ground are obtained in accordance with Section 6.5.12.2.1 of ASCE 7-05 (ASCE, 2006) by multiplying the velocity pressure by the appropriate pressure coefficients, gust factors, accounting for sloped surfaces (i.e., the roof of the building). The bu ilding is categorized as an enclosed building according to Section 6.2 of ASCE 7-05 (ASCE, 2006) and, as a result, both external and internal pressures are applied to the structure. A positive and negative internal pressure is applied to the internal surfaces of the exterior walls as well as the roof.
For external wind pressures, a Gust Effect Factor (G) of 0.85 for rigid structures is used per Section 6.5.8.1 of ASCE 7-05. External pressure coefficients are determined for windward,
SHINE Medical Technologies 3.2-1 Rev. 2 Chapter 3 - Design of Structures, Systems, and Components Meteorological Damage
leeward, and roof wind pressures according to Figure 6-6 of ASCE 7-05 (ASCE, 2006). For internal wind pressures, an internal pressure coefficient (GCpi) of +/-18 for enclosed buildings is used per Figure 6-5 of ASCE 7-05. Wind pressures are combined and iterated in multiple load cases to ensure the worst-case wind loading is considered in the building design.
3.2.2 TORNADO LOADING
This subsection discusses the criteria used to desi gn the main production facility to withstand the effects of a design-basis tornado phenomenon.
3.2.2.1 Applicable Design Parameters
The design-basis tornado characteristics are described in Regulatory Guide 1.76, Design Basis Tornado for Nuclear Power Plants (USNRC, 2007a):
- a. Design-basis tornado characteristics are listed in Table 1 of Regulatory Guide 1.76 for Region I.
- b. The design-basis tornado missile spectrum and maximum horizontal missile speeds are given in Table 2 of Regulatory Guide 1.76.
3.2.2.2 Determination of Applied Forces
The maximum tornado wind speed is converted to velocity pressure in accordance with Equation 6-15 of ASCE 7-05 (ASCE, 2006):
qz = 0.00256KzKztKdV2I (lb/ft2) (Equation 3.2-2)
Where:
Kz = velocity pressure exposure coefficient equal to 0.87
Kzt = topographic factor equal to 1.0
Kd = wind directionality factor equal to 1.0
V = maximum tornado wind speed equal to 230 mph (370 kph) for Region I
I = importance factor equal to 1.15
Additional discussion of site design parameters related to tornado loading is provided in Subsection 3.4.2.6.3.8.
The tornado differential pressure is defined in Regulatory Guide 1.76, Table 1 as 1.2 pounds per square inch (psi) (8.3 kilopascals [kPa]) for Region I (USNRC, 2007a). The tornado differential pressure is applied as an outward pressure to the exterior walls of the building, as well as the roof, because the structure is categorized as an en closed building in accordance with Section 6.2 of ASCE 7-05 (ASCE, 2006).
The procedure used for transforming the tornado-generated missile impact into an effective or equivalent static load on the structure is cons istent with NUREG-0800, Standard Review Plan for
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the Review of Safety Analysis for Nuclear Power Plants (SRP) Section 3.5.3, Subsection II (USNRC, 2007b). Tornado missile loading applied to the structur e is derived considering the effects of the following missile tyeps and maximum horizontal speeds:
- Schedule 40 pipe at 135 feet per second (ft./sec)
- Automobile (4000 lb.) at 135 ft./sec
- Solid steel sphere at 26 ft./sec
The loading combinations of the individual tornado loading components and the load factors are in accordance with SRP Section 3.3.2 (USNRC, 2007c).
3.2.2.3 Effect of Failure of Structures, Syst ems, or Components Not Designed for Tornado Loads
SSCs whose failure during a tornado event could affect the safety-related portions of the facility are either designed to resist the tornado loading or the effect on the safety-related structures from the failure of these SSCs or portions thereof are shown to be bounded by the tornado missile or aircraft impact evaluations.
The Seismic Category I boundary provides missil e walls to protect safety-related systems from damage due to tornado missiles. SSCs that are credited to prevent or mitigate potential accidents caused by a tornado event are protected by the design of the enclosed structure. The structural analysis does not credit venting of the Seismic Category I boundary during a tornado event. The differential pressure on all surfaces as an enclosed structure results in higher pressures, and the differential pressure would be reduced by the effects of venting. Therefore, there are no consequences to venting the building during a tornado event.
3.2.3 SNOW, ICE, AND RAIN LOADING
This subsection discusses the criteria used to design the main production facility to withstand conditions due to snow, ice, and rain loading. Rain loading is not considered in the structural design of the building as the sloped roofs do not result in rain accumulation. As a result of the lack of rain accumulation, load due to ice is anticipated to be minimal and is enveloped by the design snow load.
3.2.3.1 Applicable Design Parameters
Snow load design parameters pertinent to the main production facility are provided in Chapter 7 of ASCE 7-05 (ASCE, 2006) and adjusted for a mean recurrence interval of 100 years, per Table C7.3 of ASCE 7.05 (ASCE, 2006).
3.2.3.2 Determination of Applied Forces
The sloped roof snow load is calculated in acco rdance with Sections 7.3 and 7.4 of ASCE 7-05 (ASCE, 2006). The combined equation utilized to calculate the sloped roof load is:
ps = 0.7CsCeCtIpg (Equation 3.2-3)
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Where:
Cs = roof slope factor as determined by Sections 7.4.1 through 7.4.4 of ASCE 7-05 equal to 1.0
Ce = exposure factor as determined by Table 7-2 of ASCE 7-05 equal to 1.0
Ct = thermal factor as determined by Table 7-3 of ASCE 7-05 equal to 1.0
I = importance factor as determined by Table 7-4 of ASCE 7-05 equal to 1.2
pg = ground snow load as set forth in Figure 7-1 of ASCE 7-05 equal to 30 pounds per square foot (psf) and increased by a factor of 1.22 to account for a 100-year recurrence interval
Additional discussion of site design parameters related to snow loading is provided in Subsection 3.4.2.6.3.4.
Unbalanced roof snow loads are computed in accordance with Section 7.6 of ASCE 7-05 (ASCE, 2006). The design snow drift surcharge loads are computed in accordance with Section 7.7.1 of ASCE 7-05 (ASCE, 2006).
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3.3 WATER DAMAGE
The design basis precipitation, flood levels, and ground water levels for the main production facility are as follows:
- Design basis flood level: 50 feet (ft.) (15.2 meters [m]) below grade.
- Design basis precipitation level: at grade.
- Maximum ground water level: 50 ft. (15.2 m) below grade.
Per Subsection 2.4.2.3, a design basis rainfall event creates a water level about level with grade.
The first floor of the building is at least 4 inches (in.) (10.2 centimeters [cm]) above grade; therefore, water will not infiltrate the door openings in the case of a design basis rainfall event.
Per Subsection 2.4.3, a local probable maximum flood (PMF) event creates a water level approximately 50 ft. (15.2 m) below grade. The water elevation for the PMF is derived from FEMA flood profiles. The lowest point of the facility is 26 ft. (7.9 m) below grade; therefore, flooding does not cause any structural loading in the case of a local PMF event.
The impact of internal flooding is determined by the maximum flow rate and the volume of water available to feed the flood. No active response is assumed to terminate the flow and the entire volume of available water is assumed to spill in to the main production facility. For water sources outside the building (fire water), automatic or operator actions are required to terminate the flow.
Berms and ramps are used within the facility to:
- Capture and contain water collected in the RCA resulting from postulated water system ruptures or fire system discharges above grade.
- Prevent water intrusion into the uranium receipt and storage system (URSS) and target solution preparation system (TSPS) rooms.
- Prevent a release of water from the RCA due to the postulated failure of the radioisotope process chilled water system (RPCS) room, the process chilled water system (PCHS), or the facility demineralized water system (FDWS).
- Prevent bulk release of water into the radioac tive drain system (RDS) sump tanks thereby overfilling the sump collection piping.
Safety-related equipment vulnerable to water damage is protected by locating it in flood-protective compartments and/or in stalling it above flood elevation.
3.3.1 FLOOD PROTECTION
This subsection discusses the flood protection measures that are applicable to safety-related SSCs for both external flooding and postulated flo oding from failures of facility components containing liquid.
Analyses of the worst flooding due to pipe and tank failures and their consequences are performed in this subsection.
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3.3.1.1 Flood Protection Measures for Structures, Systems, and Components
Postulated flooding from component failures in the building compartments is prevented from adversely affecting plant safety or posing any hazard to the public. Exterior or access openings and penetrations into the main production facility are above the maximum postulated flooding level and thus do not require protection against flooding.
3.3.1.1.1 Flood Protection from External Sources
Safety-related components located below the design flood level are protected using the hardened protection approach described below. The safety-related systems and components are flood-protected because they are enclosed in a reinforced concrete safety-related structure, which has the following features:
- a. Exterior walls below flood level are not less than 2 ft. (0.61 m) thick.
- b. Water stops are provided in construction joints below flood level.
- c. Waterproofing is applied to external surfaces exposed to flood level.
- d. Roofs are designed to prevent pooling of large amounts of water.
Waterproofing of foundations and walls of Seismic Category I structures below grade is accomplished principally by the use of water stops at construction joints.
In addition to water stops, waterproofing of the main production facility is provided up to 4 in.
(10.2 cm) above the plant ground level to protect the external surfaces from exposure to water.
3.3.1.1.2 Flood Protection from Internal Sources
Fire suppression systems within the RCA consis t of manual discharge via fire hoses from dry standpipes, except in those areas of the RCA in which gaseous fire suppression is provided, as described in Section 9a2.3. The total discharge from the fire protection discharge consists of the combined volume from any firefighting hoses. In accordance with National Fire Protection Association (NFPA) 801, Section 5.10 (NFPA, 2008), the credible volume of discharge is sized for a manual fire-fighting flow rate of 500 gallons per minute (1893 liters per minute) for a duration of 30 minutes (min.). Therefore, the total discharge volume is 15,000 gallons (56,782 liters). This bounds the total water available in the PCHS and RPCS cooling systems that could cause internal flooding. When the total discharge volume of fire water is distributed over the entire RCA, the depth is less than 2 in. (5.1 cm). When the total discharge volume of fire water is distributed only over the minimum open floor area in the irradiation facility (IF), the depth is less than 12 in. (30.5 cm).
The safety-related function(s) of systems within the RCA that are subject to the effects of a discharge of the fire suppression system are appropriately protected by redundancy and separation. Where redundant equipment is unable to be effectively separated, fire response plans are established to ensure redundant trains of water sensitive safety-related equipment are not both subject to damage due to discharge of the fire suppression system. The floors of the URSS/TSPS rooms are elevated to prevent water intrusion in the event of an internal flood.
Water sensitive safety-related equipment is raised from the floor a minimum of 12 in. (30.5 cm) in the RCA, with the exception of the RPCS room, where water sensitive safety-related equipment is raised a minimum of 24 in. (61.0 cm) from the floor to provide defense in depth. Therefore, the
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depth of water due to fire protection discharge is less than the elevation that water sensitive safety-related equipment is raised from the floor.
Outside of the RCA there is limited water discha rge from fire protection systems. The safety-related function(s) of systems outside the RCA that are subject to the effects of a discharge of the fire suppression system are appropriately protected by redundancy and separation. The uninterruptible electrical power supply system (UPSS) has two trains to provide redundancy.
These trains are isolated from each other to pr event one train from being damaged by discharge of the fire protection system in the vicinity of the other train. Any water sensitive safety-related equipment outside the RCA is installed a minimu m of 8 in. (20.3 cm) above the floor slab at grade.
Flood scenarios have been considered for the pipe trenches and vaults. Process piping, vessels, and tanks containing special nuclear material (SNM) or radioactive liquids are seismically qualified. There is no high-energy piping within these areas. Any pipe or tank rupture in the radioisotope production facility (RPF) vaults is routed to the radioactive drain system (RDS). The RDS is sized for the maximum postulated pipe or tank failure as described in Subsection 9b.7.6.
The design of the shield plugs over the pipe trenches and vaults prevents bulk leakage of liquid into the vaults from postulated flooding events within the remainder of the RCA.
The light water pool in the irradiation unit cell (I U) is filled to an elevation approximately equal to the top of the surrounding area floor slab. Given the robust design of the light water pool (approximately 4 ft. thick reinforced concrete) and the stainless steel liner, loss of a significant amount of pool water is not credible.
3.3.1.2 Permanent Dewatering System
There is no permanent dewatering system provided for the flood design.
3.3.2 STRUCTURAL DESIGN FOR FLOODING
Since the design basis rainfall event elevation is at the finished plant grade and the PMF elevation is approximately 50 ft. (15.2 m) below grade, there is no dynamic force due to precipitation or flooding.
The load from build-up of water due to discharge of fire water in the RCA is supported by slabs on grade, with the exception of the mezzanine floor. Openings that are provided in the mezzanine ensure that the mezzanine slab is not significantly loaded. The mezzanine floor slab is designed to a live load of 250 pounds per square foot (1221 kilograms per square meter).
Therefore, the mezzanine floor slab is capable of withstanding temporary water collection that may occur while water is draining from the mezzanine floor.
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3.4 SEISMIC DAMAGE
Seismic analysis criteria for the main production facility structure (FSTR) are supported by the detailed guidance provided by the referenced Regulatory Guides and sections of NUREG-0800, Standard Review Plan for the Review of Safe ty Analysis for Nuclear Power Plants (SRP).
The FSTR includes the irradiation facility (IF), the radioisotope production facility (RPF), the non-radiologically controlled seismic area, and a nonsafety-related area. The IF contains the irradiation units (IUs) and tritium purification system (TPS), and the RPF contains the supercell and below-grade tanks. The non-radiologically controlled seismic area contains the control room, battery rooms, uninterruptible electrical power supply rooms, and other miscellaneous support rooms. The RPF, IF, and non-radiologically controlled seismic area are within the seismic boundary and are classified as Seismic Category I. These areas contain the safety-related structures, systems, and components (SSCs). To the south of the seismic boundary are the shipping and receiving areas, as well as other areas that contain nonsafety-related support systems and equipment. This part of the structure is not Seismic Category I. The areas outside the seismic boundary do not contain safety-related SSCs.
The IF, RPF, and non-radiologically controlled se ismic area comprise the safety-related portion of the FSTR. The dimensions of the safety-related portion of the FSTR at grade level are approximately 212 feet (ft.) (64.6 meters [m]) in the north-south direction and 158 ft. (48.2 m) in the east-west direction. Each of the three main areas of the safety-related portion of the FSTR is a parallel, single-story box-type structure designed with cast-in-place reinforced concrete shear walls. The major structural elements include the foundation mat, mezzanine floor, roof slab, and shear walls. Depending on their function, interior walls are cast-in-place reinforced concrete, reinforced masonry, or gypsum mounted to metal studs.
The IF and RPF have a shared sloped main roof sl ab with a low point elevation of approximately 45 ft. (13.7 m) and a high point elevation of approximately 56 ft. (17 m). The IF and RPF roof dimensions are approximately 212 ft. (64 m) in the north-south direction and 126 ft. (38.4 m) in the east-west direction. The IF and RPF roof slab is 12 inches (in.) (0.3 m) thick and has a 5 in.
(0.13 m) thick leave-in-place form slab on metal deck beneath it. The IF and RPF roof slab is supported by a series of roof trusses, which ar e made out structural steel shapes having a yield strength of 50 kilopounds per square inch (ksi) (6.89 MPa).
The non-radiologically controlled seismic area roof slab is 20 in. (0.51 m) thick and has a high point elevation of approximately 22 ft. (6.71 m). The non-radiologically controlled seismic area roof dimensions are approximately 148 ft. (45.1 m) in the north-south direction and 32 ft. (9.75 m) in the east-west direction.
Interior to the IF and RPF there is a mezzanine with 8 in. (0.2 m) thick reinforced concrete slab on metal deck, vertically supported by structur al steel beams and columns (structural shapes with yield strength of 50 ksi [6.9 MPa]), and laterally restrained by interior reinforced concrete walls. A large section of the RPF mat slab is recessed 12 ft. (3.66 m) to 23 ft. (7 m) below the main mat slab, where a series of 1 ft. (0.3 m) thick (minimum) reinforced concrete walls divides the area. The exterior below grade walls in the recessed portion of the RPF range from a minimum of 2 ft. (0.61 m) thick to a maximum of 3.5 ft. (1.07 m) thick, and the basemat is 2.5 ft.
(0.76 m) thick. The RPF below grade areas are covered by a series of precast concrete shield plugs. A section of the IF mat slab is recessed 16 ft. (4.9 m) below the main mat slab, where a series of 4.5 ft. (1.37 m) thick (minimum) reinforced concrete walls divides the area. The exterior
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below grade walls in the recessed portion of the IF range from a minimum of 4 ft. (1.2 m) thick to a maximum of 5.83 ft. (1.8 m) thick, and the basemat is 3 ft. (0.91 m) thick. Shield plugs cover the IU cells which are located above the recessed portions of the IF. Shield plugs in the IF and RPF are seismically qualified to remain in place during a design basis earthquake (DBE).
The reinforced concrete structural elements of the safety-related portion of the FSTR are constructed of Type II concrete with a design compressive strength at 28 days of 6000 pounds per square inch (psi) (41.37 MPa) and American Society for Testing and Materials (ASTM) A706/A706M-16, Standard Specification for De formed and Plain Low-Alloy Steel Bars for Concrete Reinforcement (ASTM, 2016) steel re inforcement bars with a minimum design yield strength of 60 ksi (413.7 MPa). The exterior above grade walls and major shear walls range from a minimum of 2 ft. (0.61 m) thick to a maximum of 2.33 ft. (0.71 m) thick. The reinforced concrete structures are founded on a 3 ft. (0.91 m) thick mat slab that is thickened to 4.5 ft. (1.37 m) thick around the building perimeter.
The dimensions of the nonsafety-related portion of the FSTR at grade are approximately 77 ft.
(23.5 m) in the north-south direction and 158 ft. (48.2 m) in the east-west direction. Additionally, the southwest corner of the safety-related basemat contains a part of the nonsafety-related portion of the FSTR. The dimensions of this nonsafety-related part are approximately 63 ft.
(19.2 m) in the north-south direction and 32 ft. (9.8 m) in the east-west direction. The safety-related portion of the FSTR is seismically isolated from the nonsafety-related portion of the FSTR via a seismic separation joint (i.e., seismic gap).
The nonsafety-related portion of the FSTR is a two-story steel framed structure with a roof height of approximately 40 ft. (12.2 m). The concrete on metal deck mezzanine slab and metal deck roof slab are diaphragms that transfer the lateral loads to a series of vertical brace systems. The FSTR also includes a nonsafety-related, isolat ed, self-supporting steel on reinforced-concrete foundation cantilevered exhaust stack with a height of approximately 67 ft. (20.4 m) located east of the nonsafety-related portion of the FSTR.
The FSTR is modeled to the analyses described in this chapter. The concrete walls, slabs, and basemat are modeled using thick shell elements. The steel structural members are modeled using three-dimensional beam elements. Interior partition walls made of concrete are modeled using thick shell elements. Interior partition walls made of masonry or gypsum are isolated from the lateral load resisting system of the building and are not explicitly modeled, but their mass is accounted for. Interior partition walls that ar e co-located with safety-related SSCs, and must maintain structural integrity to prevent unacceptable interactions with safety-related SSCs, are classified as Seismic Category II. The excavated soil volume of the soil-structure interaction (SSI) analysis is modeled using solid elements. Seismic mass is considered in the model in accordance with SRP Section 3.7.2 (USNRC, 2013a). Figure 3.4-1 and Figure 3.4-2 provide three-dimensional views of the structural model.
Certain material in this section provides informat ion that is used in the technical specifications, including conditions for operation and design featur es. In addition, significant material is also applicable to, and may be referenced by, the bases that are described in the technical specifications.
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3.4.1 SEISMIC INPUT
3.4.1.1 Design Response Spectra
The safe shutdown earthquake (SSE) ground motion is defined with a maximum ground acceleration of 0.2 g and design response spectr a in accordance with Regulatory Guide 1.60, Revision 2, Design Response Spectra for Seismic Design of Nuclear Power Plants (USNRC, 2014a).
Consistent with SRP Section 3.7.2 (USNRC, 2013a), the location of the ground motion should be at the ground surface. The competent material (mat erial with a minimum shear wave velocity of 1,000 feet per second [ft./sec] [305 meters per second {m/s}]) is 7.5 ft. (2.3 m) below the ground surface for the site. Hence, the SSE response spectra are defined as an outcrop at a depth of 7.5 ft. (2.3 m) below grade.
3.4.1.2 Design Time Histories
For SSI analysis and for generating in-structure response spectra, design acceleration time histories are required. Synthetic acceleration ti me histories are generated to envelop the design response spectra. Mutually orthogonal synthetic acceleration time histories are generated for each horizontal direction and one for the vertical di rection. Each of these time histories meets the design response spectra enveloping requirements c onsistent with Approach 2, Option 1 of SRP Section 3.7.1 (USNRC, 2014b). The specifics of each of these time histories are:
- Each synthetic time history has been generated starting with seed recorded earthquake time histories.
- The strong motion durations (Arias intensity to rise from 5 percent to 75 percent) of synthetic time histories are greater than a minimum of 6 seconds.
- The time history has a sufficiently small increment and sufficiently long duration. Records shall have a Nyquist frequency of at least 50 hertz (Hz) and a total duration of at least 20 seconds. The time step increment will be 0.005 seconds, which meets the Nyquist requirement for frequencies up to 100 Hz.
- Spectral acceleration at 5 percent damping is computed at a minimum of 100 points per frequency decade, uniformly spaced over the log frequency scale from 0.1 Hz to 50 Hz or the Nyquist frequency.
- Comparison of the response spectrum obtained from the synthetic time history with the target response spectrum shall be made at each frequency computed in the frequency range of interest.
- The computed 5 percent damped response spectrum of the acceleration time history shall not fall more than 10 percent below the target response spectrum at any one frequency and shall have no more than 9 adjacent frequency points falling below the target response spectrum.
- The computed 5 percent damped response spectrum of the artificial time history shall not exceed the target spectrum at any frequency by more than 30 percent in the frequency range of interest.
Comparison of the response spectra obtained from the artificial acceleration time histories with the target design response spectra illustrates that the enveloping criteria of SRP Section 3.7.1 (USNRC, 2014b) are satisfied. The seismic design parameters used in the seismic analysis of the FSTR, including the artificial acceleration time histories, target design response spectra, and
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response spectra obtained from artificial acceleration time histories, are consistent with the SRP Section 3.7.1 acceptance criteria.
3.4.1.3 Critical Damping Values
Structural damping values for various structur al elements used in the seismic analyses are provided in Section 1.1 of Regulatory Guide 1. 61, Revision 1, Damping Values for Seismic Design of Nuclear Power Plants (USNRC, 2007d). Seismic SSI analysis of the FSTR is performed in the program SASSI2010, Version 1.0, which performs the analysis in the frequency domain. The variations in damping are accoun ted for in the seismic SSI analysis through the complex frequency response analysis method which incorporates damping as an imaginary component in the stiffness matrix.
3.4.2 SEISMIC ANALYSIS OF FACILITY STRUCTURES
3.4.2.1 Seismic Analysis Methods
The general equation of motion (as seen below) is used regardless of the method selected for the seismic analysis.
M xCxKxMug (Equation 3.4-1)
Where:
[M] = mass matrix
[C] = damping matrix
[K] = stiffness matrix
= column vector of relative accelerations
= column vector of relative velocities
= column vector of relative displacements
= ground acceleration
Analytical models are represented by finite element models. Consistent with SRP Section 3.7.2 (USNRC, 2013a), SRP Acceptance Criterion 3.C, finite element models are acceptable if the following guidelines are met:
- The type of finite element used for modeling a structural system should depend on structural details, the purpose of analysis, and the theoretical formulation upon which the element is based. The mathematical discretization of the structure should consider the effect of element size, shape, and aspect ratio on solution accuracy.
- In developing a finite element model for dynamic response, it is necessary to consider that local regions of the structure, such as individual floor slabs or walls, may have fundamental vibration modes that can be excited by the dynamic seismic loading. These local vibration modes are represented in the dynamic response model, in order to ensure that the in-structure response spectra include the additional amplification.
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The seismic analysis of the FSTR is performed in the program SASSI2010, Version 1.0, System for Analysis of Soil-Structure Interaction, and SAP 2000, integrated software for structural analysis and design. The finite element model c onsists of plate/shell, solid, beam, or a combination of finite elements.
3.4.2.2 Soil-Structure Interaction (SSI) Analysis
The SSI model provides structural responses for design basis level seismic loading of the main production facility, including transfer functions, maximum seismic acceleration (zero period acceleration [ZPA]), and in-structure response sp ectra (ISRS) (horizontal and vertical directions) for various damping values. The SSI model is developed using the computer program SASSI2010.
Solid elements are only used in the modelng of t he excavated soil volume. No solid elements are used in the modeling of the building structure. Major structural elements of the main production facility, including walls, slabs, beams and columns, are modeled with appropriate mass and stiffness properties. Major openings within walls and slabs are included in the SSI model. The model uses thick shell elements to represent concrete slabs and walls, and beam elements to represent steel members, mostly comprising the truss components in the facility. Elements are modeled at the geometric centerline of the structural member they represent with the following exceptions:
- The below grade and mezzanine slabs are model ed at their actual top-of-slab elevation.
- Minor adjustments are made to the dimensions and locations of wall openings to maximize mesh regularity in the model.
- Roof truss locations are adjusted to align with the roof shell element mesh.
In addition to self-weight of the structure, floor loads and equipment loads are converted to mass and included in the model. A mass equivalent to a 50 pounds per square foot (psf) floor load is added to floor slabs to represent miscellaneo us loads from minor equipment, piping, and raceways. A portion of the loads are considered mass sources in the following manner according to SRP Section 3.7.2 (USNRC, 2013a):
- Dead Load 100 percent
- Live Load25 percent
- Snow Load.75 percent
In addition, 100 percent of the hydrodynamic mass of the water in the IU cells and 100 percent of the parked crane mass is included.
The SSI analyses are performed separately on an equivalent linear-elastic basis for mean (best estimate [BE]), upper bound (UB), and lower bound (LB) soil properties to represent potential variations in in-situ and backfill soil conditions around the building in accordance with SRP Section 3.7.2 (USNRC, 2013a). SSI analysis requires detailed input of the soil layers supporting the structure. Strain dependent soil properties were determined from geotechnical investigations and free field site response analysis. The free-field site response analysis is performed for the LB, BE, and UB soil properties. In accordance with SRP Section 3.7.2, the UB and LB values of the soil shear modulus, G, are obtained in terms of their BE through the equations shown below.
Equations 3.4-2 and 3.4-3 are used to calculate the low strain properties for the LB and UB. The final soil properties are calculated from the SHAKE2000 program, version 3.5.
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(Equation 3.4-2)
(Equation 3.4-3)
Where, COV is the coefficient of variation. A COV of 0.5 is used because the site is well-investigated.
3.4.2.3 Combination of Earthquake Components
In order to account for the responses of the stru ctures subjected to the three directional (two horizontal and the vertical) excitations, the ma ximum co-directional responses are combined using either the square root of the sum of the squares (SRSS) method or the 100-40-40 rule as described in Section 2.1 of Regulatory Guide 1.92, Revision 3, Combining Modal Responses and Spatial Components in Seismic Response Analysis (USNRC, 2012).
3.4.2.4 Seismic Analysis Results
The seismic loads are applied to the st ructural analysis model as described in Subsection 3.4.2.6 and utilized to develop in-structure response spec tra of the facility for use in sizing equipment and components. Response spectra acceleration s are output from SASSI at the 75 standard frequencies between 0.2 Hz and 34 Hz as suggested by Regulatory Guide 1.122, Revision 1, Development of Floor Design Response Spectra for Seismic Design of Floor-Supported Equipment or Components (USNRC, 1978). In addition, response spectra accelerations are specified to be output at frequencies of 37 Hz, 40 Hz, 43 Hz, 46 Hz and 50Hz.
The results of the seismic analysis demonstrate that the design of the FSTR meets the seismic requirements of SHINE Design Criterion 2.
3.4.2.5 Assessment of Structural Seismic Stability
The stability of the main production facility is evaluated for sliding and overturning considering the following load combinations and factors of safe ty in accordance with Section 7.2 of American Society of Civil Engineers (ASCE)/Structural Engineering Institute (SEI) Standard 43-05, Seismic Design Criteria for Structures, Systems, and Components in Nuclear Facilities (ASCE/SEI, 2005) and SRP Section 3.8.5 (USNRC, 2013b):
Minimum Factor of Safety Load Combination Sliding Overturning
1.1 1.1 (Equation 3.4-4)
1.1 1.1 (Equation 3.4-5)
1.5 1.5 (Equation 3.4-6)
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Where:
D = Dead Load H = Lateral Earth Pressures E = Earthquake Load Wt = Tornado Load W = Wind Load
The base reactions due to seismic forces envel op the reactions due to wind and tornado loading; therefore, a stability analysis for wind and torna do is not required. Seismic excitation in each direction is considered using the 100-40-40 percent combination rule as specified in Subsection 3.4.2.3 above.
The lateral driving forces applicable to the se ismic stability evaluation of the main production facility include active lateral soil force, static surcharge lateral soil force, dynamic surcharge lateral soil, dynamic lateral soil force, and seismic lateral inertial force. The resistance for sliding is due to the static friction at the soil-basemat interface for sliding evaluation and passive lateral soil resistance. The self-weight of the structur e is considered in the resistance to overturning effects.
The seismic stability evaluation of the main produ ction facility determined the minimum factor of safety against sliding to be 1.11 and the minimum fa ctor of safety against overturning to be 1.99.
As such, the main production facility is considered stable.
3.4.2.6 Structural Analysis of Facility
3.4.2.6.1 Description of the Structures
The main production facility is a box-type s hear wall system of reinforced concrete with reinforced concrete floor slabs. The major structural elements in the main production facility include the shear walls, the floor and roof slabs, and the foundation mat.
3.4.2.6.2 Applicable Codes and Standards
- ACI 349-13, Code Requirements for Nuclear Safety-Related Concrete Structures and Commentary (ACI, 2014)
- ANSI/AISC N690-12, Specification for Safety-Related Steel Structures for Nuclear Facilities (ANSI/AISC, 2012)
3.4.2.6.3 Site Design Parameters
The following subsections provide the site-specif ic parameters for the design of the facility.
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3.4.2.6.3.1 Soil Parameters
The soil parameters for the facility are provided below.
- Maximum bearing pressure beneath major foundation elevations:
- Main mat at 3 ft. below grade: 2460 pounds per square foot (psf) (118 kilopascal
[kPa]).
- Mats supporting RPF pipe trench, adjacent valve pits, and tank areas at 15 ft. and 19 ft. below grade: 5970 psf (286 kPa).
- Mats beneath carbon delay bed vault at 25.5 ft. below grade: 5130 psf (246 kPa).
- Allowable soil bearing pressure: 6000 psf (287 kPa).
- Minimum average shear wave velocity: 459 ft./sec (140 m/s).3
- Minimum unit weight: 117 pounds per cubic foot (lb/ft3 ) (1874 kilograms per cubic meters
[kg/m ]).
The allowable soil bearing pressure is greater than the maximum soil bearing pressures at the supporting mats at the major foundation elevations.
3.4.2.6.3.2 Maximum Ground Water Level
- 50 ft. (15.2 m) below grade level.
3.4.2.6.3.3 Maximum Flood Level
- Section 2.4 describes the design basis rainfall event.
- Section 2.4 describes the probable maximum flood (PMF).
3.4.2.6.3.4 Snow Load
- Snow load: 30 psf (1.44 kPa) (50-year recurrence interval).
- A factor of 1.22 is used to account for the 100-year recurrence interval required.
3.4.2.6.3.5 Design Temperatures
- The winter dry-bulb temperature (-7°F [-22°C]).
- The summer dry bulb temperature (88°F [31°C]).
3.4.2.6.3.6 Seismology
- SSE response spectra: per Regulatory Guide 1.60 (USNRC, 2014a).
- SSE time history: envelope SSE response spectra in accordance with SRP Section 3.7.1 (USNRC, 2014b).
3.4.2.6.3.7 Extreme Wind
- Basic wind speed for Wisconsin: 90 miles per hour (mph) (145 kilometers per hour [kph])
(50-year recurrence interval).
- A factor of 1.07 is used to account for the 100-year recurrence interval required.
- Exposure Category C.
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3.4.2.6.3.8 Tornado
- Maximum tornado wind speed (Region 1): 230 mph (370 kph).
- Maximum tornado rotational speed (Region 1): 184 mph (82 m/s).
- Maximum tornado translational speed (Region 1): 46 mph (21 m/s).
- Radius of maximum rotational speed: 150 ft. (45.7 m).
- Tornado differential pressure: 1.2 psi (8.3 kPa).
- Rate of tornado differential pressure: 0.5 psi/s (3.7 kPa/s).
- Missile Spectrum: see Table 2 of Regulatory Guide 1.76 (USNRC, 2007a).
3.4.2.6.3.9 Rainfall
- The main production facility's sloped roof and building configuration preclude accumulation of rainwater; therefore, rain loads are not considered in this evaluation.
3.4.2.6.4 Design Loads and Loading Combinations
3.4.2.6.4.1 Dead Load
Dead loads consist of the weight of all materials of construction incorporated into the building, as well as the following:
- Concrete cover blocks for below grade tanks and trenches.
- Fixed equipment (includes tanks and hot cells).
- Partition walls.
- Precast tank vault bases in the RPF.
- Weight of commodities attached to structural elements.
- Crane dead loads as described in Subsection 3.4.2.6.4.6.
3.4.2.6.4.2 Live Load
The building is evaluated for live loads consistent with the use of and occupancy of the facility.
This includes minimum live loads driven by occupancy and non-permanent loads caused by equipment or required during plant operations.
The following categories encompass the live loads for the main production facility:
- A distributed live load of 125 psf (5.99 kP a) is used for areas designated as light manufacturing.
- A distributed live load of 250 psf (12.0 kPa) is used for areas designated as heavy manufacturing.
Additionally, the following categories are considered as live loads in the areas where they occur:
- Concrete cover block laydown load.
- Supercell drum export system and shield gate live load.
- Forklift live load associated with the movement of a shipping container throughout the radiologically controlled area (RCA).
- Roof live load.
- Equipment live loading.
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3.4.2.6.4.3 Snow Load
The snow load is based on a ground snow load of 30 psf (1.44 kPa) with an importance factor of 1.2 and a mean recurrence interval of 100 years.
3.4.2.6.4.4 Wind Load
The wind load is based on a basic wind speed of 90 mph (145 kph) with an importance factor of 1.15 and a mean recurrence interval of 100 years.
3.4.2.6.4.5 Earthquake Load
Dynamic analysis is conducted with a portion of the loads considered as mass sources in the following manner according to SRP Section 3.7.2 (USNRC, 2013a):
- Dead Load 100 percent
- Miscellaneous Load.100 percent
- Live Load25 percent
- Snow Load.75 percent
- Parked Crane Load.100 percent
- Hydrodynamic Load100 percent
Earthquake load is applied in a SAP2000 model (ver sion 17.2) on an equivalent static basis. The equivalent static model represents the soil as dynamic springs, developed in accordance with ASCE 4-98 (ASCE, 2000). Maximum seismic acceleration at each node of the structure is determined by SSI analysis using SASSI2010, as discussed in Subsection 3.4.2.2. Figures 3.4-3 through 3.4-6 show selected response spectra locations throughout the FSTR.
The SAP2000 and SASSI2010 models are both thr ee-dimensional models that represent the structural elements with equivalent mass and st iffness properties. The lumped masses at each node of the SAP2000 analysis are multiplied by the peak accelerations determined from the SSI analysis to determine an equivalent static earthquake load at each node. The direction of load application is iterated to obtain nine seismic force terms.
3.4.2.6.4.6 Crane Load
The building is evaluated for loads associated with two overhead bridge cranes, one servicing the IU cell area and one servicing the RPF area. Crane loading is evaluated in accordance with American Society for Mechanical Engineers (ASME) NOG-1, Rules for Construction of Overhead and Gantry Cranes (ASME, 2004).
3.4.2.6.4.7 Soil Pressure
Sub-grade walls of the main production facility are designed to resist static lateral earth pressure loads, compaction loads, static earth pressure, dynamic surcharge loads, and elastic dynamic soil pressure loads. Static earth pressure consists of at-rest, active, and passive soil pressure loads, which are applied as required to ensure the stability of the building.
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3.4.2.6.4.8 Fluid Load
The hydrostatic loading is calculated based on the actual dimensions of the IU cells and applied in the model as lateral hydrostatic pressure on t he walls and vertical hydrostatic pressure on the bottom slabs.
The hydrodynamic loading is applied to the mode l by considering hydrodynamic masses rigidly attached to the IU cells in accordance with Section 3.1.6.3 of ASCE 4-98 (ASCE, 2000) and Chapter 6 of TID-7024, Nuclear Reactors and Earthquakes (AEC, 1963). The provisions, as outlined in the referenced documents, require t hat the impulsive and convective masses be applied to the model to capture the dynamic effects due to seismic motion.
3.4.2.6.4.9 Tornado Load
The tornado load is based on a tornado wind spe ed of 230 mph (370 kph) and a tornado missile spectrum as described in Table 2 of Regulatory Guide 1.76 (USNRC, 2007a). The tornado load, Wt, is further defined by the following combinations:
Wt = Wp (Equation 3.4-7)
Wt = Ww + 0.5Wp (Equation 3.4-8)
Wt = Ww + 0.5Wp + Wm (Equation 3.4-9)
Where:
Wp = load from tornado atmospheric pressure change
Ww = load from tornado wind
Wm = load from tornado missile impact
3.4.2.6.4.10 Accidental Eccentricity
As required by Section 3.1.1(e) of ASCE 4-98, Seismic Analysis of Safety-Related Nuclear Structures and Commentary (ASCE, 2000), the structure is evaluated for a torsional moment due to accidental eccentricity. The torsional moment is taken equal to the story shear at the elevation and in the direction of interest times a moment arm equal to 5 percent of the building dimension.
The torsional moment is distributed to the building shear walls based on the relative rigidity of the walls in plane. The loads are applied statically and account for variability in the load direction.
3.4.2.6.5 Structural Analysis Model
A three-dimensional finite element model of the main production facility structure was created using the computer program SAP2000 (version 17.2) to represent the mass and stiffness of the major structural elements, equipment, and components of the FSTR. The model utilizes shell elements to represent slabs and walls, and fr ame elements to represent columns and beams.
Elements are modeled at the geometric centerline of the structural member they represent with the following exceptions:
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- The below grade and mezzanine slabs are model ed at their actual top-of-slab elevation.
- Minor adjustments are made to the dimensions and locations of wall openings to maximize mesh regularity in the model.
- Roof truss locations are adjusted to align with the roof shell element mesh.
The adjustments described above are intended to maintain mesh regularity to the extent possible.
3.4.2.6.6 Structural Analysis Results
Concrete walls and slabs in the main production fa cility are designed for axial, flexural, and shear loads per provisions of ACI 349-13 (ACI, 2014) considering all applicable design basis load combinations. Walls and slabs are modeled in SAP2000 using shell elements. To determine the longitudinal and transverse reinforcement required within a wall or slab, the design is performed on an element basis. Using resultant forces obtai ned from SAP2000 model data, the element is designed as a reinforced concrete section per ACI 349-13 (ACI, 2014). The required area of steel is determined for combined axial and flexural l oads, in-plane shear loads, and out-of-plane shear loads. Using these results, reinforcement size and spacing is specified.
3.4.3 SEISMIC CLASSIFICATION AND QUALIFICATION
This subsection discusses the methods by which the SHINE facility SSCs are classified and qualified to ensure functional integrity.
3.4.3.1 Seismic Classification
Facility SSCs, including their foundations and supports, that must perform safety function(s) after an SSE are designated as Seismic Category I. Safety-related SSCs are classified as Seismic Category I.
SSCs that are co-located with a Seismic Category I SSC and must maintain structural integrity in the event of an SSE to prevent unacceptable interactions with a Seismic Category I SSC, but are not required to remain functional, are designated as Seismic Category II.
The seismic classifications of SSCs are shown in Table 3.4-1.
3.4.3.2 Seismic Qualification
In general, one of the following four methods of seismically qualifying the SSCs is chosen based upon the characteristics and complexities of the subsystem:
- Dynamic analysis.
- Testing.
- Comparison with existing databases.
- A combination of analysis and testing.
The methods to be used for qualification are stated below. These methods will depend on the type of equipment and supporting structure. The fo llowing defines some of the possible cases and associated analytical methods which may be used in each case.
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ISRS for the FSTR are used to determine the appropriate seismic design of equipment, piping, and components in the safety-related envelope. For the evaluation of cable and conduit raceway systems, quantitative evaluation criteria are applied only to the most seismically vulnerable portions of these systems.
3.4.3.2.1 Qualification by Analytical Methods
Analytical calculations may be used as a qualification method when maintaining the structural integrity is an assurance for the safety function. This method can be used for equipment and piping systems when expected response to the earthquake excitations can be characterized as linear or simple non-linear behavior (e.g., piping, skids, and large equipment).
ISRS from Subsection 3.4.2.2 are used in the response spectrum analysis of piping and equipment. These response spectra are used to determine the seismic requirements at the component mounting locations for qualificat ion purposes and for piping subsystem dynamic analysis.
Static Analysis
The equipment, as well as its support, can be cons idered rigid, and may be analyzed by static analysis, if it can be shown that its fundamental natural frequency does not fall in the frequency range below the high frequency asymptote (ZPA) of the required response spectrum (RRS).
For rigid equipment supported by a rigid structur e, the equipment motion shall be the same as the floor motion without amplification. The horizon tal and vertical dynamic accelerations shall be taken as the ZPA from the applicable response spectrum. These acceleration values are used to perform a static analysis. In this case, the dy namic forces are determined by multiplying the mass of the subassembly or parts of the equipment by the ZPA of the RRS. These forces should be applied through the center of gravity of the subassembly or the part of the equipment.
The stresses resulting from each force (in each of the three directions) should be combined by an appropriate combination method to yield the dynamic stresses. The dynamic deflections (deflections due to dynamic loads) may be ca lculated in the same manner. These dynamic stresses and deflections are combined with stresses and deflections from other loads per the load combinations defined in the applicable design codes.
Simplified Dynamic Analysis
A simplified dynamic analysis may be performed in cases where the equipment and support systems natural frequency falls in the frequency range below the high frequency asymptote (ZPA) of the applicable RRS. This is similar to the static analysis described above but requires using different values for the accelerations. The accelerations to be used are obtained from the appropriate ISRS curves at each natural frequency in the frequency range of interest. If the frequency information is not available, the simpli fied dynamic analysis (sometimes referred to as the equivalent static analysis) is performed using 1.5 times the maximum peak of the applicable floor response spectra. Once the dynamic forces are determined using the 1.5 times the peak acceleration values from the RRS, stresses and deformations may be computed following the same procedures used for static analysis.
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Detailed Dynamic Analysis
When acceptable justification for static or simplified dynamic analysis cannot be provided, a detailed dynamic analysis is performed. A mathem atical model may be constructed to represent the dynamic behavior of the equipment. A finite element model may be constructed and analyzed using the response spectrum modal analysis or time-history analysis. The maximum inertia forces, at each mass point, from each mode, are applied at that point to calculate the modal reactions (forces and moments) and modal defor mations (translations and rotations). The various modal contributions are combined by an appropriate combination method. Closely spaced modes are combined by using an approach from Regulatory Guide 1.92 (USNRC, 2012).
The stresses and deflections resulting from each of the three directions are combined to obtain the dynamic stresses and deflections. These dy namic stresses and deflections are combined with stresses and deflections from other loads per the load combinations defined in the applicable design codes.
3.4.3.2.2 Qualification by Tests
Seismic qualification by testing is the preferred method of qualification for complex equipment not suitable for analysis, and for equipment required to perform an active function (e.g., valves and instrumentation). Qualification by testing may be performed using applicable procedures specified by Institute of Electrical and Electron ics Engineers (IEEE) and/or ASME qualification of active mechanical equipment (QME) standards.
The vibration inputs for the seismic tests are the response spectra or Required Input Motion (typical for line-mounted equipment) at the mounti ng location of the equipment. ISRS are used to develop Test Response Spectra for testing.
The test samples shall be mounted to simula te the recommended service mounting. If this cannot be done, the effect of the actual supporting structure shall be considered in determination of the input motion. The project specification will state the expected (or calculated) piping nozzle reaction loads on the equipment which shall be used in the qualification. Any other loads that may act on the component (mechanical, electrical, or instrument) during the postulated dynamic event must be simulated during the test, unless t he supporting test (or calculations) shows that they are insignificant.
At the completion of the tests, inspection shall be made by the test conductor to assure that no structural damage has occurred. Sufficient monitoring devices shall be used to evaluate the performance of the active components during the tests. For acceptability, the components shall demonstrate their ability to perform their in tended safety functions when subjected to all applicable loads.
3.4.3.2.3 Comparison with Existing Databases
ISRS are used to develop RRS for comparison with existing response from a database. The candidate equipment must be similar to equipment in the existing seismic experience databases.
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3.4.3.2.4 Combined Methods of Qualification
Based on the available information, component complexity, and functional requirements, the above mentioned analytical and test methods may be combined in various sequence and content to achieve seismic qualification of the subject components.
3.4.4 SEISMIC INSTRUMENTATION
Seismic instrumentation is not required under Section IV(a)(4) of Appendix S to 10 CFR 50 or Section VI(a)(3) of Appendix A to 10 CFR 100 because the main production facility is not a nuclear power plant. However, the facility has nonsafety-related seismic instrumentation to record accelerations experienced at the site during a seismic event.
The seismic instrumentation establishes the acceptability of continued operation of the plant following a seismic event. This system provides acceleration time histories or response spectra experienced at the facility to assist in verifying that safety-related SSCs at the main production facility can continue to perform their safety functions.
Seismic monitoring is performed by the process integrated control system (PICS), which is described in Section 7.3. Indication of a seismic event results in an alarm in the facility control room.
3.4.5 SEISMIC ENVELOPE DESIGN FOR EXTERNAL HAZARDS
3.4.5.1 AIRCRAFT IMPACT ANALYSIS
The safety-related structures at the SHINE facility are evaluated for aircraft impact loading resulting from small aircraft which frequent t he Southern Wisconsin Regional Airport (SWRA).
The analysis consists of a global impact res ponse analysis and a local impact response analysis.
The global impact response analysis is performed using the energy balance method, consistent with U.S. Department of Energy (DOE) Standard DOE-STD-3014-2006 (DOE, 2006). The permissible ductility limit for reinforced concrete elements is in accordance with Appendix F of ACI 349-13 (ACI, 2014). The permissible ductility limit for truss members is determined from Chapter NB of ANSI/AISC N690-12 (ANSI/AISC, 2012). The calculated values are then used to create the appropriate elastic or elastic-plastic load deflection curves. From these curves, the available energy absorption capacity of the structure at the critical impact locations is determined. The Challenger 605 was selected as the critical aircraft for the global impact analysis based on a study of the airport operat ions data. The Challenger 605 is evaluated as a design basis aircraft impact. The probabilistic distributions of horizontal and vertical velocity of impact are determined from Attachment E of Lawrence Livermore National Laboratory UCRL-ID-123577 (UCRL, 1997) to correspond to 99.5 percent of impact velocity probability distribution.
Each wall that protects safety-related equipment was evaluated for perpendicular impacts at the center of the wall panel and at critical locations near the edge of the wall panel. Each roof that protects safety-related equipment was evaluated for perpendicular impacts near the end of the roof truss, at the center of the roof truss, at the center of the roof panel between trusses or walls.
The evaluation of the roof slab for horizontal se ismic loading bounds any aircraft impact scenario
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that produces lateral forces, so horizontal aircraft impact scenarios are not explicitly evaluated for the roof.
The local response evaluation was conducted us ing empirical equations in accordance with DOE-STD-3014-2006 (DOE, 2006). The structure wa s shown to resist scabbing and perforation.
A punching shear failure was not postulated becaus e all sections are shown to have a thickness 20 percent greater than the thickness required to prevent perforation, based on Appendix F of ACI 349-13 (ACI, 2014). Scabbing and perforati on thickness requirement was calculated using DOE-STD-3014-2006 (DOE, 2006).
Because engine diameter and engine weight are both critical for the local evaluation, the local impact evaluation was performed for the Hawker 400 as well as the Challenger 605 aircraft. The Challenger 605 and Hawker 400 are evaluated as design basis aircraft impacts.
To evaluate the capability of the structure to with stand impact from an aircraft, each wall that is subject to potential impact from an aircraft missile is evaluated. Figure 3.4-7 shows the openings in the building which are evaluated as missile barriers.
The design basis aircraft impacts have been ev aluated against the acceptance criteria of ACI 349-13 (ACI, 2014) for concrete and ANSI/AISC N690-12 (ANSI/AISC, 2012) for steel and it has been demonstrated that all components of the FSTR structure that are relied upon to provide impact protection have adequate energy absorption capacity to perform their design basis function.
3.4.5.2 EXPLOSION HAZARDS
Because the SHINE facility is not licensed as an operating nuclear reactor, explosions postulated as a result of the design basis threat as defined in Regulatory Guide 5.69, Guidance for the Application of Radiological Sabotage Design-Basis Threat in the Design, Development and Implementation of a Physical Security Program that Meets 10 CFR 73.55 Requirements (USNRC, 2007e), are not considered. However, ac cidental explosions due to transportation or storage of hazardous materials outside the facility and accidental explosions due to chemical reactions inside the facility are assessed.
The maximum overpressure at any safety-related area of the facility from any credible external source is discussed in Subsection 2.2.3). The seismic area is protected by outer walls and roofs consisting of reinforced concrete robust enough to withstand credible external explosions as defined in Regulatory Guide 1.91, Revision 2, Evaluations of Explosions Postulated to Occur at Nearby Facilities and on Transportation Routes Near Nuclear Power Plants (USNRC, 2013c).
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Table 3.4 Seismic Classification of Structures, Systems, and Components
Seismic System, Structure, and Component Acronym Category Engineered safety features actuation system ESFAS I Facility fire detection and suppression system FFPS II Facility structure FSTR I Iodine and xenon purification and packaging IXP I Irradiation cell biological shield ICBS I Light water pool system LWPS I Material handling system MHS II Molybdenum extraction and purification system MEPS I Neutron driver assembly system NDAS I Neutron flux detection system NFDS I Nitrogen purge system N2PS I Normal electrical power supply system NPSS I Primary closed loop cooling system PCLS I Process vessel vent system PVVS I Production facility biological shield PFBS I Radioactive drain system RDS I Radioactive liquid waste immobilization RLWI I Radioactive liquid waste storage RLWS I Radiological ventilation zone 1 RVZ1 I Radiological ventilation zone 2 RVZ2 I Radiological ventilation zone 3 RVZ3 I Subcritical assembly system SCAS I Target solution preparation system TSPS I Target solution staging system TSSS I Tritium purification system TPS I Target solution vessel (TSV) off-gas system TOGS I TSV reactivity protection system TRPS I Uninterruptible electrical power supply system UPSS I Uranium receipt and storage system URSS I Vacuum transfer system VTS I
Note: The seismic category listed is the highest fo r the system. Portions of the system may have a lower seismic categorization.
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Figure 3.4 View Looking Southwest of the Representative Concrete Sections
Full structure (looking southeast)
Full structure from below El. 0 ft. (looking southeast)
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Chapter 3 - Design of Structures, Systems, and Co mponentsSeismic Damage
Figure 3.4 Cross Section of Structural Model
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Chapter 3 - Design of Structures, Systems, and Components Systems and Components
3.5 SYSTEMS AND COMPONENTS
The SHINE facility structure, system, and co mponent (SSC) designs are based on the SHINE design criteria described in Section 3.1.
The design of the SHINE facility and systems is based on defense-in-depth practices. Defense-in-depth practices means a design philosophy, appli ed from the outset and through completion of the design, that is based on providing successive le vels of protection such that health and safety are not wholly dependent upon any single element of the design, construction, maintenance, or operation of the facility. The net effect of incorporating defense-in-depth practices is a conservatively designed facility and systems t hat exhibit greater tolerance to failures and external challenges.
The SHINE facility and system design incorporat es a preference for engineered controls over administrative controls, independence to avoid co mmon mode failures, and incorporates other features that enhance safety by reducing chal lenges to safety-related components and systems.
Physical separation and electrical isolation are used to maintain the independence of safety-related control circuits and equipment among redundant safety divisions or with nonsafety systems so that the safety functions required during and following design basis events can be accomplished.
Redundancy is also incorporated into system designs. Two divisions of safety-related protection systems and two divisions of safety-related emergency power are provided for active engineered controls that depend on control and/or continued power to perform their safety functions. Active engineered safety-related SSCs requiring control or power may be reduced to a single division when redundancy of the function is provided by other means (e.g., when a check valve is used in combination with an automatically actuated isolation valve).
The design bases for the SSCs of the SHINE faci lity are described in detail throughout the FSAR.
The FSAR sections where SSCs are described also provide information that is used in the technical specifications. This includes limitin g conditions for operation, setpoints, design features, and means for accomplishing surveillances. In addition, these FSAR sections also present information that is applicable to, and may be referenced by, the technical specification bases.
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3.6 NITROGEN PURGE SYSTEM STRUCTURE
The nitrogen purge system (N2PS) structure is a safety-related structure which contains a portion of the N2PS. The N2PS structure is located adjacent to the main production facility, as shown in Figure 1.3-3.
3.6.1 METEOROLOGICAL DAMAGE
The N2PS structure is designed to withstand the same potential meteorological damage as described in Section 3.2 for the main production facility structure (FSTR). The Regulatory Guides, codes, and standards associated with the FSTR analysis described in Section 3.2 are applicable to the N2PS structure. Rain loading is not considered in the structural design of the N2PS structure as the sloped roof does not result in rain accumulation. As a result of the lack of rain accumulation, load due to ice is anticipated to be minimal and is enveloped by the design snow load. The N2PS structure is categorized as an enclosed building and, as a result, both external and internal pressures are applied to the structure when considering wind loading.
Wind, tornado, and snow loading is applied to the N2PS structure as described in Section 3.2 for the FSTR with the following exceptions:
- The applied N2PS structure uniform snow load of 60 pounds per square foot (psf) is conservative considering 30 psf ground snow load with 1.2 importance factor for the 100-years mean recurrence interval.
- The N2PS structure tornado load includes tornado generated missile load, tornado wind load, and differential pressure consistent with the methodology described in Section 3.2 for the FSTR; however, normal wind load is not considered because the tornado wind load bounds the normal wind load.
- Due to the proximity of the N2PS structure to the main production facility, tornado missile protection is not required for penetrations in the N2PS structure on the west wall facing the FSTR as the FSTR shields that wall from tornado generated missiles.
3.6.2 WATER DAMAGE
3.6.2.1 External Flooding
The main production facility design basis precipitation, flood levels, and ground water levels, provided in Section 3.3, are also applicable to the N2PS structure, and are as follows:
- Design basis flood level: 50 feet (ft.) (15.2 meters [m]) below grade.
- Design basis precipitation level: at grade.
- Maximum ground water level: 50 ft. (15.2 m) below grade.
Per Subsection 2.4.2.3, a local probable maximum precipitation (PMP) event creates a water level about level with grade. The N2PS structure floor is raised at least 4 inches above grade; therefore, water will not infiltrate the door openings in the case of a local PMP event.
Per Subsection 2.4.3, a local probable maximum flood (PMF) event creates a water level approximately 50 ft. (15.2 m) below grade. The lowest point in the N2PS structure is above grade; therefore, flooding does not cause any structural loading in the case of a local PMF event.
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3.6.2.2 Internal Flooding
There is no risk of internal flooding as there are no water sources internal to the N2PS structure.
3.6.3 SEISMIC DAMAGE
The N2PS structure seismic analysis is based on the equivalent static load method and uses the seismic analysis of the FSTR described in Section 3.4. The N2PS structure seismic loads are calculated using the in-structure-response-spectra (ISRS) for FSTR grade level with an amplification factor of 1.5. The N2PS structure se ismic analysis can be realistically represented by a simple model, and the equivalent static load method with a 1.5 amplification factor produces conservative results in terms of responses. The N2PS structure has a footprint of approximately 42 ft. by 13 ft., and is located adjacent to the FSTR, which has an approximate footprint of 212 ft.
by 158 ft. The N2PS structure seismic analysis, based on the equivalent static load method, conservatively accounts for relative motion. Co mparing the two structures and locations, the N2PS structure response will be driven by the FSTR response and the N2PS structure will not affect the FSTR response. The use of FSTR grade level ISRS at N2PS structure grade level, with an amplification factor of 1.5, conservatively ac counts for the structure-soil-structure interaction (SSSI) effects of the FSTR structure on the N2PS structure.
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3.7 REFERENCES
ACI, 2014. Code Requirements for Nuclear Safety-Related Concrete Structures and Commentary, ACI 349-13, American Concrete Institute, 2014.
AEC, 1963. Nuclear Reactors and Earthquakes, TID-7024, U.S. Atomic Energy Commission, August 1963.
ANSI/AISC, 2012. Specification for Safety-Related St eel Structures for Nuclear Facilities, ANSI/AISC-N690, American National Standards Institute/American Institute of Steel Construction, 2012.
ASCE, 2000. Seismic Analysis of Safety-Related Nuclear Structures and Commentary, ASCE 4-98, American Society of Civil Engineers, 2000.
ASCE, 2006. Minimum Design Loads for Buildings and Other Structures, ASCE 7-05, American Society of Civil Engineers, 2006.
ASCE/SEI, 2005. Seismic Design Criteria for Structures, Systems, and Components in Nuclear Facilities, ASCE 43-05, American Society of Civil Engineers, 2005.
ASME, 2004. Rules for Construction of Overhead and Gantry Cranes, ASME NOG-1, American Society of Mechanical Engineers, 2004.
ASTM, 2016. Standard Specification for Deformed and Plai n Low-Alloy Steel Bars for Concrete Reinforcement, ASTM A706/A706M-16, American Society for Testing and Materials, 2016.
DOE, 2006. Accident Analysis for Airc raft Crash into Hazardous Facilities, DOE-STD-3014-2006, U.S. Department of Energy, 2006.
NFPA, 2008. Standard for Fire Protection for Facilities Handling Radioactive Materials, NFPA 801-2008, National Fire Protection Association, 2008.
UCRL, 1997. Hossain, Q.A., R.P. Kennedy, R.C. Murray, K. Mutreja, and B.P. Tripathi, Structures, Systems, and Components Evaluation Technical Support Documents, DOE Standard, Accident Analysis for Aircraft Crash into Hazardous Facilities, UCRL-ID-123577, Lawrence Livermore National Laboratory, 1997.
USNRC, 1978. Development of Floor Design Response Spectra for Seismic Design of Floor-Supported Equipment or Components, Regulatory Guide 1.122, Revision 1, U.S. Nuclear Regulatory Commission, 1978.
USNRC, 2007a. Design Basis Tornado and Tornado Missiles for Nuclear Power Plants, Regulatory Guide 1.76, Revision 1, U.S. Nuclear Regulatory Commission, 2007.
USNRC, 2007b. Barrier Design Procedures, NUREG-0800, Subsection 3.5.3, Revision 3, U.S. Nuclear Regulatory Commission, 2007.
USNRC, 2007c. Tornado Loads, NUREG-0800, Subsection 3.3.2, Revision 3, U.S. Nuclear Regulatory Commission, 2007.
SHINE Medical Technologies 3.7-1 Rev. 2 Chapter 3 - Design of Structures, Systems, and Components References
USNRC, 2007d. Damping Values for Seismic Design of Nuclear Power Plants, Regulatory Guide 1.61, Revision 1, U.S. Nuclear Regulatory Commission, 2007.
USNRC, 2007e. Guidance for the Application of Radiological Sabotage Design-Basis Threat in the Design, Development and Implementation of a Physical Security Program that Meets 10 CFR 73.55 Requirements, Regulatory Guide 5.69, U.S. Nuclear Regulatory Commission, 2007.
USNRC, 2012. Combining Modal Responses and Spatial Components in Seismic Response Analysis, Regulatory Guide 1.92, Revision 3, U.S. Nuclear Regulatory Commission, 2012.
USNRC, 2013a. Seismic System Analysis, NUREG-0800, Subsection 3.7.2, Revision 4, U.S. Nuclear Regulatory Commission, 2013.
USNRC, 2013b. Foundations, NUREG-0800, Subsection 3.8.5, Revision 4, U.S. Nuclear Regulatory Commission, 2013.
USNRC, 2013c. Evaluations of Explosions Postulated to Occur at Nearby Facilities and on Transportation Routes Near Nuclear Power Plants, Regulatory Guide 1.91, Revision 2, U.S. Nuclear Regulatory Commission, 2013.
USNRC, 2014a. Design Response Spectra for Seismic Design of Nuclear Power Plants, Regulatory Guide 1.60, Revision 2, U.S. Nuclear Regulatory Commission, 2014.
USNRC, 2014b. Seismic Design Parameters, NUREG-0800, Subsection 3.7.1, Revision 4, U.S. Nuclear Regulatory Commission, 2014.
SHINE Medical Technologies 3.7-2 Rev. 2