ML20081K491
| ML20081K491 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 10/28/1983 |
| From: | Lear G Office of Nuclear Reactor Regulation |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20079F427 | List:
|
| References | |
| FOIA-84-35 NUDOCS 8311100049 | |
| Download: ML20081K491 (3) | |
Text
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OCT 28 583 MEMORANDUM FOR:
George Knighton, Chief Licensing Branch #3 Division of Licensing FROM:
George Lear, Chief Structural and Geotechnical Engineering Branch Division of Engineering
SUBJECT:
HEARON IS SER INPUT (REVISION) - STRUCTURAL ENGINEERING
Reference:
Memorandum from J. Knight to T. Novak,' Shearon Harris SER, dated September 15, 1983 Since we issued the Teference SER, two additional items have been resolved to our satisfaction.
One open item and one confirmatory structural item are still outstanding. Affected sections of the SER are marked up and enclosed.
Under the confirmatory item, the applicant is to submit a calculation of ultimate strength capacity of the contain-ment building under internal pressure.
The applicant agreed to the submittal wnose schedule and scope are to be datermined later.
%W George. ar, Chief i
Structural and Geotachnical Engineering Branch Division of Engineering l
Enclosure:
As' stated cc:
J. Knight l
B. Buckley J Holonich
. Lear P. Kuo S. Kim N. Renney SGEB File 7
W.$ ///000 Y$
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ENCLOSURE
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The applicant has met the requirements of GDC 4 by assuring that the-design of the safety-related. structures are capable of withstar. ding the dynamic effects associated with missiles, pipe whipping, and discharging fluids.
(4). The applicant has met the requirements of GDC 5 by demonstrating that structures, systems, and components are not shared between units or that if shared they have demonstrated that sharing will not impair their ability to perform their' intended ' safety function.
The criteria used in th'e analysis, design, and construction of the steel and concrete seismic Category I structures to account for anticipated loadings and postulated conditions that may be imposed upon'each structure during its service lifetime are in conformance with established criteria, codes, standards, and specifications acceptable to the staff, as now included in SRP Section 3.8.4.
The use of th.ese ' criteria, the loads and loading combinations, the design and analysis procedures, the structural accep.tance, criteria, the materials, -qual-ity control, and special construction techniques, and the testing and inservice surveillance requirements, provide reasonable assurance that, in the event of winds, tornados, earthquakes and various postulated accidents occurri.ng within the structures, the structures will withstand the specified design conditions without impairment of structural integrity or the performance of required safety functions.
3.8.5 Foundations Foundations of Gategory I structures.are described in Section 3.B.5 of the SAR.
Prinarily, these foundations are reinforced concrete of the mat type.
code used in che design of these concrete mat foundations is ACI 318.
The major These concrete foundatioris have been designed to resist various combinations of dead loads; live ' cads; environmental loads including winds, tornadoes, OBE and SSE and loads generated by postulated ruptures of high energy pipes.
The_ design and analysis procedures that were used for these Category I founda-tions are the same as those approved on previously licensed applications and, in gent.al, are in accordance with procedures delineated in the ACI 318 Code.
The various Category I foundations were designed and proportioned to remain within limits estabiished by the Regulatory staff under the various load com-binations.
These limits are, in general, based on the ACI 318 Code modified as, appropriate for load combinations that are considered extreme.
The mate-rials of construction, their fabrication, construction and installation, will
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The staff con;l that acceptable and meets re:hhe design of the seismic Category I foundations is ommendations of SRP 3.8.5 and the relevant require-ments of 10 CFR 50, 550.55a, and GDC 1, 2, 4, and 5.
on the following:
This conclusion is based-(1)
The applicant has met the requirements of 50.55a and GDC 1 with respect to assuring that the seismic Category I foundations are designed, fabricated, ENCLOSURE
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with its safety function to be performed by meeting the guide RGs and industry star;dards indicated below.
(2)
The applicant has met the requirements of GDC 2 by designing the seismic Category I. foundation to withstand the most severe earthquake that has been established for the site with sufficient margin and the combination 1
of the effects of normai and accident conditions with the effects of environmental loadings such as earthquakes and other natural phenomena.
(3) of seismic Category I foundations are capable of withsta effects associated with missiles, pipe whipping, and discharging fluids.
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The applicant has met the requirements of GDC 5 by demonstrating that
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(4) structures, systems, and components are not shared between units or that i
sharing will not impair their abili.ty to. perform their intended safety function.
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p(onditions that may be imposed upon each
'he criteria used in the analysis, design, and construction of all the plant
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re in conformance with established criteria, codes, standards, and specifica-tandards ACI-318 and AISC.." Specification for Design, Fab 4
icr. of Structural Steel for Building."
'ha use of these criteria as defined by applicable codes, standards, guides,
$nd specifications; the loads and loading combinations; the design and analysis rocedures; the structural acceptance criteria; the ' materials, quality control l
rograms, and special construction techniques; and the testing and inservice Brveillance requirements, provide reasonable assurance that in the event of yundations withstand the spec 1fied design conditions withou ructural integrity and stability or the performance of required safety nettons.
8.6. Structural Audit twsn March 7 and 11,1983, the staff conducted a structural audit of the
<earon Harris plar.t at the New York Office of Ebasco Co., applicant's AE firm a result, ten issues were identified as open items to be resolved at a later t2.
They are discussed in the staff trip report, a memorandum from S. Kim to Lear of HRC dated May 10, 1983.
bmittGd a letter report on the subject. Subsequently, on July 15, the applicant Ei.ght issues have been resolved in satisfactory manner.
Q Is 3 following see.the fase issue #fs$tt under review that will be addressed in Bupplement to the SER.
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