ML20099G310

Rev 1 to Procedure WDP-002, Phase II Walkdown Procedure for Reactor Building Miscellaneous Steel & Drywell Platform Steel

ML20099G310
Person / Time
Site:	Brunswick
Issue date:	07/17/1992
From:	CAROLINA POWER & LIGHT CO.
To:
Shared Package
ML20099G296	List: ML20099G292 ML20099G310
References
WDP-002, WDP-2, NUDOCS 9208140199
Download: ML20099G310 (51)

Text

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.. 1 CONTROLLEQ COPY COPY NO. e4 BRUNSWICK STEAM ELECTRIC PLANT PHASE 11 WALKDOWN PROCEDURE  ;

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PROCEDURE NO. WDP-002

' TITLE:

PHASE il WALKDOWN PROCEDURE FOR REACTOR BUILDING MISCELLANEOUS STEEL AND ORYWELL

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Procedure No. WDP 002. Rev,1 l Page 1 of 26 i

l BRUNSWICK STEAM ELECTRIC PLANT PHASE il WALKDOWN PSOCEDURE FOR REACTOR BUILDING MISCELLANEOUS STEEL

- r AND DRYWELL PLATFORM STEEL ,

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TABLE OF CONTENTS 1.0 Purpose .................................... 2

- 2.0 Background ........ 2

..... ................... h 3.0 Scope ............ ........................ 3  !

~ 4.0 Definitions .................................. 6 I r 5.0 Personnel Qualification Requirements and Training . . . . . . . . . . 8 6.0 . Precautions / Limitations /ALARA ....................10 -

7.0 - Walkdow.n Packzges ............................I1 8.0 Items and Equipment Required for Walkdown . . . . . . . , . . . . 14 t 9.0 Walkdown Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

.l-10.0 Measurement Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . .

3 16  :

s' 11.0 ' Data Collection ..............................17 j 12.0 Walkdown Documentation .........................'23 -;

13.0 References .................................25 14.0. Exhibits ...........,.......................26 Appendix A -

Welding Verification Guidelines L

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, .' l Proudure No. WDP 002. Rev.1 Pye 2 of 26 l

WALKDOWN PROCEDURE l

l 1.0 PURPOSE 1

This Phase 11 walkdown procedure (WDP<002) establishes the methcAs for conducting and documenting the walkdowns for the Reactor Building Miscellaneous Steel and Drywell Platform Steel Verification Program for Bnmswick Steam Electric Plant, Units 1 and 2. The primary objective of the walkdowns is to identify and record existing irregularities and to collect sufficient data to permit engineering evaluations for verification of adequacy of the related miscellaneous and platform steel. A second objective is to ootain data which could assist in the updating of thm best available design documents to reflect the field conditions. This WDP 002 wi!* be used to perform the following tasks:

1.1 Identify and record significant differences between field conditions and the existing design documents of miscellaneous steel and drywell structural steel members (e.g., member sizes, orientation, location, additional members not shown on drawings, missing members, etc.).

1.2 Identify and record significant differences between field conditions and the existing design documents for the connection details.

1.3 Identify and record significant differences between field conditions and the existing design cocuments for accessible ponions of embeds and surface-mounted plates within the influence zone of attached miscellaneous steel or drywell steel.

I 1A Determine the location and type of major attachments to miscellaneous steel and drywell structural steel members which will be used to establish applied loadings for analysis.

'5 Identify and record any damage or other irregularities that may require engineering evaluation.

l High resolution, scaled photographs of the connections, embeds, and surface mounted plates may be used extensively to assist in the identification and determination of deMis required for verification of miscellaneous and drywell platform steel.

2.0 B ACKGROUp'D Physical irregularities have been noted in the miscellaneous steel and connections in the Reactor Building of th: Carolina Power and Light (CP&L) Brunswick Steam Electric

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Procedure No. WDP.002 Rev. I Page 3 of 26 WALKDOWN PROCEDURE Plant Units 1 and 2. CP&L personnel familiar with the irregularities mdicate that some of these irregulari' are associated with the initial erection of the steel. Others may have occurred since the initial installation.

3.0 SCOPE The scope of this procedute includes verification of the miscellaneous and drywell platform steel in Units 1 and 2 and identification and recording of any significant irregularities. This work wili be accomplished by field walkdown of the miscellaneous steel, recording of irregularities that need to be addressed, and t;tking measurements to verify compliance with des!gn documents. Only C.ose characteristics that are necessary for engineering evaluation will be measured and recorded. Details that are not necest.ary for engineering evaluations need not be recorded; the exhibits attached as an integral paa of this WDP-002 are designed to be consistent with this philosophy. The characteristics of various structural elements that need to be verified and recorded are discussed in Section 11.0. The specific scope of work is as follows:

3.1 Identification of members and connections presently shown on the design drawings by a unique number. Since the location and scope of each merrber may not be defined on available drawings, it will be necessary for the walkdown teams to assign an identifying trark number for each additional member in the program.

These mark numbers will be a contimation of the developed numbering system described in Section 7.0.

3.2 Members and connections that have been installed in accordance with the design drawings can be evaluated using the drawing data and specific measurements need not be taken. In order to identify the cases with irregularities, walkdowns may be preceded by collection of high resolution 35 mm photcgraphs. Review of these photos by an experienced engineering team (including welding engineers) will determine those structural items and welding details that requirt collection of catt a outlined in this procedure. This philocophy also serves ALARA principles in relatively higher radiation areas since time spent inside the reactor building is minimized.

Cameras with telephoto capabilities :.nd coiT.p:.tible lighting systems will be used where appropriate to minimize the nea! for scaffolding.

3.3 Platforms inside the Units 1 and 2 drvwell located at Els 17'-10 1/4", 38'-7 1/4",

52'-5 1/4", 67'-2 L 2", and 80'-2 1/2".

Procedure No. WDP o02. Rev.1 Page 4 of 26 WALKDOWN PROCEDURE 3.4 Miscellaneous steel in Units 1 and 2 rea: tor buildings are located at various elevations between floor at El (-)17' 4" & 20'-0", El 20'-0* and 50'-0", E150'-0" and 80'-0", and El S0'-0" and 117' 4". The miscellaneous steel may be attached to embedded plates or supported by columns anchored to br.se plates. The scope of the reactor building miscellane T eeel includes those items listed below:

3.4.1 Reactor Building, Unit 1, miscellaneous steel between El (-) 17'-4" ai.d El 20'-0" (Drawing Numbers: 9527 F-12023, 9527-F-12024, 9527 F 12025,9527-F-12026) 3.4.2 Reactor Building, Unit 1, misec11aneous steel between El 20'-0" and El 50'-0" (Drawmg Numbers: 9527 F-18050,9527-F-18051,9527-F-18052,9527-F-11020,9527 F-11021, and 9527-F-11023) 3.4.3 Reactor Building, Unit 1, miscellaneous steel between El 50'-0" and El C' 0 (Drawing Numbers: 9527-F-18053,9527-F-18054,9527 F-18%7,9517-D 81043,7527-F-11047,9527 F-12053,9527 F-11ND, and 9527-F-11041) 3.4.4 Reactor Building, Unit 1, miscellaneous steel between El 80'-0" and EL 117'-4" (Drawirg Numbers: 9527-F-18056,9527-F-18057,9527-F-18058, 9527 F-11NS,9527 F-11048,9527-F-11049, and 9527-F-11052) 3.4.5 Reactor Building, Unit 2, miscellaneous steel between El (-) 17'-4" and E. J'-0" (D: wing Numbers: 9527 F-01223, 9527-F-01224, 9527-F-01225, and 9527 F-0!226) 3.4.6 Reactor Building, Unit 2, miscellaneous steel between El 20'-0" and El 50'-0" (Drawing Numbers: 9527-F-01850.,9527-F-01851,9527-F-01852, 9527-F-01859, 9527-F-01120, 9527-F-01121, and 9527-F-011'23) 3.4.7 Reactor Building, Unit 2, miscellaneous steel between El 50'-0" and El 30'-0" (Drawing Numbers: 9527-F-01853,9527-F-01854,9527-F-01855, 9527-F-01867, 9527-F-01900, 9527-F-il47, 9527-F-1253, 9527-F-01140, and 9527 F-01141) 3.4.8 Reactor Building, Unit 2, miscellaneous steel between El 80'-0" and El 117'4" (Drawing Numbers: 9527 F-01856,9527-F-01857,9527-F-

Procedure No. WDP 002, Rev. I PaFe 5 of 26 WA1.KDOWN PROCEDURE 01858, 9527-F-1862, 9527-F-1145, 9527 F 1148, 9527 F 1149, and 9527-F-1152) 3.4.9 Unit 1, CRD System, Reactor Building, seismic suppon for HCU banks - El 20'-0" - South Bank (Drawing No. D 83086) 3.4.10 Unit 1, CRD System, Reactor Building, seismic suppon fcr HCU banks - El 20'-0" - North Bank (Drawing No. D 83087) 3.4.11 Unit 2, CRD System, Reactor Building, seismic support for HCU banks - El 20'-0" - South Bank (Drawing No. 9527 D 08386) 3.4.12 Unit 2, CRD System, Reactor Building, seismic support for HCU banks - El 20'-0" North Bank (Diawing No. 9527-D-08387) 3.5 The scope also includes additional secondary steel members which were added to support pipe, HVAC, and electrical commodity supports not shown on CP&L drawings and not genenlly included as pan of the commodity support.

3.6 IEB 79-14 pipe supports have been previously located by CP&L in walkdown packages of those suppons. The attachment locations of these siipports for pipe 4 inches and larger in diameter as identified on CP&L walkdown data e to be redefined with respect to the miscellaneous steel and transcribed to the walkdown packages.

3.7 CP&L had previously walked down 9 areas in the reactor building outside the drywellin 1990 and 1991 to determine adequacy of the miscellaneous steel. Two of those areas will be randomly checked for accuracy. Ifit is confirmed that this data adequately reflects the actual conditions, using the guidelines required by this l

procedure, the remainder of the CP&L walkdown data will be accepted as part of this walkdown, subject to the verification included in Section 9.2. If discrepancies exist between the CP&L data and actual conditions, using measurement of this document, all 9 areas will be included in this program.

3.8 Verification of accessible portions of embedded and surface-mounted plates, as they affect the potential load carrying capacity of the subject steel, is part of the scope of this activity. Specific attributes are identified in Section 11.0.

3.9 Information to identify loads from major attachments is to be collected by field l measurement. The requirements for this activity are included in Section 11.0.

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Prwehre No. WDP 002, Rev.1 Page 6 of 26 i

WAt.KDOWN PROCEDURE _

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Procedures for identifying loads o,, members from othe Man major attachments are also included in Section 11.0 3.10 The scope of this walkdown is ilmited to accessible area. It is anticipated that the inaccessible .xms will generally be limited to embeds and surface mounted plates. Miscellanceus steel in inaxessible areas will be addressed on a case-by-case basis.

3.11 Items not included in the walkdown, except as noed Pbove: ,

Pipe Suppon Steel Reactcr Building Structural Steel above the Refueling Floor Conduit Suppon Steel

• Cable Tray Suppon Steel

• HVAC Support Stee'

• Instrument Tubing Suppon hteel

• Pipe Whip Restraint Structural Steel Reactor Vessel and Sacrificial Shield Stsbilizer Steel

• . Stairs, I. adders, and personnel access platforms Structural Steel for Equipment Hatch Removal Inaccessible Ponions of Connecdons, Members, and Embed.,

4.0 DEFINITIONS

' Best Available Deslan Information:

A collection of existing calculations and design, fabrication and crection drawings, and modification documentation, that identifies the design, fabrication, and erection details for the subject steel.

Drywell Platforms:

The platforms at El 17'-101/4", El 38'-5 1/4", El 52'-71/4", El 67'-21/2", and El. '

80'-21/2" located inside the drywell of Units 1 and 2 and the vertical members (not pil e whip restraints) that connect the horizor.tal platforms.

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Page 7 of 26 WALKDOWN PROCEDURE Irrerularities:

I Items such as welds, bolts, attachment angles, members, etc. or structural configurations 1 (a series of items combined to form a specific strucural function) that are not generally l in accordance with the best available Gesign information and/or accepted standard practice. Stan6.rd practice is defined as practices similar or comparable to those recommended by the American Institute of Steel Construction (AISC) Specifications for Buildings. Significant irregularities are those that may affect load-carrying capability of structural components.

Influence Zone Term used to define the area adjacent to an embed or surface mounted plate. Other embeds or attachments withm this zone may influence the load capacity of the embed being reviewed.

Maior Attachilltubt Attachments to beams for IEB 7914 piping four inches or larger, Non-79-14 piping larger than 10 inches nominal diameter, cable trays with more than 4 tiers and any other attachment with relatively large loads.

Project Walkdown Supervisor:

The person responsible for conducting the walkdown program in accordance with the approved procedures. He is responsible for verifying the training of all walkdown personnel, for ensuring that walkdown packages are assembled and that the pre-walkdown review of best available design information is performed by the walkdown teams. He also coordinates the activities of the walkdown teams, maintains their status, and ensures i that the walkdown products are complete and acceptable.

Etactor Buildine Miscellaneous Steel:

The miscellaneous steel inside the reactor building consisting of primarily horizontal, but with some vertical (columns) and bracing members, that may be attached to embed plates, surface-mounted plates, or other structural steel in the ceiling or on the floors between various finor elevations.

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1 Procedure No. WDP-oo2 Rev.1 Page 5 of 26 WAl.KDOWN PROCEDURE 79-M Pinine:

Piping included within the scope of the IE Bulletin 79-14 program.

5.0 PERSONNEL OUAI TFICATION REOUIREMENTS AND TR AINWG 5.1 Personnel Oualifications Personnel conducting data collection walkdowns shall have previous experience in walkdowns, or physical design / construction experience with structural steel.

Personnel conducting weld verification walkdowns shall be welding engineers and have previous experience with making / repairing / verifying the welds.

5.2 IE6ing Personnel performing a walkdown or an independent review of walkdowm activities shall have received the following indoctrination and training prior to conducting the walkdown.

5.2.1 Indoc*rination training on the Bechtel Quality Assurance Program and an explanation of the EDP system, as required by EDP 5.34 (Refer-ence 1), and training in appropriate EDPs as determined by the Walkdown Group Supervisor and Engineering Assurance.

5.2.2 Training ir. this procedure (WDP-002).

5.? 'l Training will include plant orientation addressing physical plas.t layout and applicable CP&L procedures, specifications, etc. including the following:

Plam General Arrangement Drawmgs

• Specification No. 248-107 (Reference 2) Installation of Seismic Pipe and HVAC Suppons and Misec11aneous Steel

• The Administration of the Automated Maintenance Management System, Al-79 (Reference 3)

Instructions for Working in Hot Environments, Al-107 (Reference 4)

Prtcedure No. WDT412, Rev.1 Page 9 of 26 WALKDOWN PROCEDURE BSEP Field Engineering Inspection (As-Building), NED Guideline E-9, Rev. 0 (Reference 5) (Information only)

Specification No. 018-002, Specification for Furnishing and Installation of Miscellan:c 's Iron and Steel (Reference 6)

Specification No. 9527 01-12-2, Specification for Sacrificial Shield and Drywell Interior Stmetural Steel (Reference 7) 5.2.4 Welding engineers involved in walkdown shall be trained in Visual Weld Acceptance Criteria (VWAC) methodology.

5.3 Training Methodology and Documentation Training methodology may consist of classroom sessions, required reading, audio / video presentation (s), or any combination of these methodologies.

Scheduling, conducting training sessions, and documentation of training is the responsibility of the Project Walkdown Supervisor.

The above training shall be documented in accordance with EDP 5.34.

5,4 Mditional Training In addition to the above training, the Walkdown Team personnel shall be given the following training prior to conducting engineering walkdowns:

General yemployee training (CP&L)

Respirator training, as required (CP&L)

• ALARA training (CPdL)

• Safety training 5.5 Oualification and Trainine Records Training records shall be maintained in accordance with EDP 5.34 with the exception that Engineering Assurance will maintain a copy of training records including copies of resum6s on site,

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Procedure No. WDP-002. Rev. I Page 10 of 24 WALKDOWN PROCEDURE 6.0 PRECAUTIONS / LIMITATIONS /ALARA 6.1 Precautions / Limitations 6.1.1 Personnel shall at all times adhere to the established site standard: snd procedures for personnel /public safety as well as take necessary precautionary measures to prevent damage to plant equipment.

Personnel shall obey all Plant Procedures and requirements such as Safety, ALARA, Health Physics, Hold Order Tags, Caution Signs, etc., that are posted on plant equipment. If tag removal is deemed necessary to complete the. task, it shall be coordinated through CP&L Field Services and Operations in accor6ance with existing Plant Procedures.

6.1.2 Persennel will be working in close proximity to components that affect the safe operation and shutdown of the plant. They shall be aware that inadvertent actuation of plant safety systems is of significant concern to CP&L in terms of site operations and potential impact on the health and safety of the general public. Care shall be taken in all aspects of in-plant activities.

6.1.3 Walkdown activities shall be coordinated with the Outage Coordinator-Planning and Scheduling Unit prior to performing in plant activities.

6.1.4 Personnel shall notify the CP&L Project Manager and Bechtel Project Walkdown Supervisor, PE, or PEM immediately when an event or condition potentially reportable to the NRC, a safety hazard, or equipment malfunction is identified, l

6.1.5 Personnel shall exercise extreme caution when working around rotating, moving, or energized equipment and should be aware of the possibility of equipment automatically starting.

6.2 ALARA l An ALARA pre-plan shall be coordinated with CP&L Health Physics prior to l walkdown in order to achieve radiation exposure ALARA. Personnel shall work l closely with Health Physics during all phases of the work in radiologically-l controlled areas. If conditions in the work area change significantly, personnel l

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. e Procedure No. WDP.002. Rev. I Page 11 of 26 l i

WAt.KDOWN PROCEDURE l

shall leave the area immediately and notify Health Physics and the SOS or Unit Operator.

7.0 WALKDOWN PACKAGES '

7.1 Identification of Walkdown Areas and Items 7.1.1 Reactor Building, outside the Drywell Walkdown packages shall be separated by unit and structure. The Reactor Building for each unit shall be divided into quadrants based on column lines and shall be identified as shown in *Walkdown Area Designator" sketch (Exhibit D).

The Reactor Building walkdown packages shall also be sectionalized

' with respect to elevation and column line designations and shall be sized with regard to complexity and "ALARA" considerations.

The structural steel members shall be identified sequentially within a given section moving in~ north to-south, west-to-cast direction and designations shall be, but not limited to, the following:

~ (Tc be used as guideline only)

' Columns . . . . . . . . . . . . . . . CL Beams . . . . . . . . . . . . . . . . . . B Bracing (vertical & horizontal) . . BR Knee brace . . . . . . . . . . . _ . . KBR Platform hanger . . . . . . . . . . . H Post .................P~

Monorail . . . . . . . . . . . . . . . M

' Identification of end connections for horizontal type members shall be with "A" and ."B," with "A" being the north or west connection and "B" being the south or east connection where possible.1 Vertical or inclined me nbers (columns, posts, knee braces, or vertical braces) shall have their F bottom as "A" and if required, their top connection as "B" (see Exhibit E).

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i Procedure No. WDP@2 Rev.1 Page 12 of 26 WAl.KDOWN PROCEDURE l

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Accessible portions of all embeds associated with an evaluated end i' connection shall be considered as part of that particular connection.

7.1.2 hywell Platforms '

Walkdown areas in the drywell will consist of platforms at Elevations 17'- .

10%", 38' 5 %", 52' 5 %", 67'-2%", and 80'-2%". The corresponding walkdown packages should be sectionalized " wedges" defined by radial beam members. Radial beams shall be numbered sequentially in a clockwise direction be*; inning with "RI." The identification of the end connections for the radial bearns shall be "A" and "B," and noted as -

"RI A" and " RIB," and shall include only that part which occurs within-the azimuth boundaries of the " wedge." "RIA" would be the connection at the outer drywell wall end and " RIB" would be the connection at the sacrificial shield wall end.

The intermediate structural steel members should in general be identified sequentially within a given " wedge" only and member designations should '

~ be similar to those in Ocction 7.1,1, with the addition of R for radial beam 3.

The identification of the end connections for intennediate structural members shall be "A" and "B" (e.g., BI A, BIB, or BRI A, BRIB, etc.)

and, as a general rule, should be in a clockwi.e direction or outside to inside direction where possible, Once a " wedge" is completed, the sequence shall restart with the next

" wedge." Each " wedge" section will constitute a walkdown package and each package shall be uniquely identified (see " Package Identification,"

Section 7.2).

l All acces.;ble embeds associated with the end connections shall be considered as part of that particular connection.

. 7.2 Pachee Identification 7.2.1 Package identification numbers for the Reactor Building outside the drywell shall include the following:

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,j- 9' i Procedure No. WDP 002, Rev. I  ;

Page 13 of 26  !

WALKDOWN PROCEDURE l Urdt No.

Building Walkanwn Area Detianator (Exhibit D)

Elevation Column Line Boundaries ExamDie 1 - RB - B - EL 20'-0" - (A-B / 2R-3R)

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Unit Bldg WD Area l West / East North / south Designator 4 col Boundaries Platform Elevation 7.2.2 Package identification numbers for the Drywell Platform Steel shall include the following:

Unit No.

Building Walkdown Area Designator (Exhibit D)

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Elevation Arimuth Boundaries Example: 2 - DW - E - EL 38'5\" - (82*-98') *

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Unit Bldg WD Area [ Azimuth Boundaries Designator 4 of " Wedge" Platform Elevation

.7.2.3 All package identification numbers shall be accompanied by a CP&L BSEP reference drawing number and revision from which the package was

-prepared.

Example: Package No: 2-DW-E-EL 38'-5 %" - (82'-98')

Ref. Dwg No: F-01902 SH.1 Rev. 0 7.2.4 Any sections, elevations, or details required to clearly identify member connections shall be included in the package and labeled with the same package number and reference drawing number.

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Procedwe No. WDP-002, b '

Page 14 of 26 WALKDOWN PROCEDtJRE 7.3 .Walkdown Packne content

- Each walMown package shall include, but not be limited to, the following:

1, WalMown Package Cover Sheet (Exhibit A), completed through blocks 1 to 9 2, Wa.tkdown Package Index Sheet (Exhibit B) with completed applicable entries.

3. Walkdown Drawing List (Erldbit C)

4. A copy of the Area Designator Sketch (Exhibit D)

'5. A copy of the best available connection details from the design drawings, or best available information when possible

6. Appropriate completed data sheets (Exhibits G through M) 8,0 ITEMS AND EOUTPMENT REOUIR,ED FOR WALKIK)WN -

The teams taking only photographs and the teams collecting data should havc available to them those items and equipment listed below that are necessary to pcrform their task.

' 8.1 . Copy of walkdown package with signed-off coversheet in accordance with Section 7.3 and required data sheets. >

L 8.2 - The teams should also have available to them: flashlights, binoculars,' writing L: Ads md pencils,-measuring devices such as rulers, and plastic bags for carrying l

items. Calibration controls are not required for standard off-the-shelf measuring equipme.nt (e.g., rulers,- tape measures); Welding engineers should also have standard welding gauges available to them.

8.3 High resolution cameras and telescopmg scale to take scaled photographs as necessan.-

L 8.4 Walkdown team members shall use hot tools when available for working in contaminated areas.

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Procedure No. WDP&r2. Rev. I Page 15 of 26 i WALKDOWN PROCEDURE i

9.0 WALKDOWN PROCFSS l

9.1 Walkdown Team Members

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i 9.1.1 Data Collection 1 1

1 Ts data collection walkdown will b; performed by teams of at least two perienced walkdown personnel qualified in accordance with Section 5.0. Each team member will become familiar with the platform details and the contents of the walkdown package before they perform the walkdown.

Infornw mm the best available design documents shall be transcribed on to th . sheets (Exhibits G through M) prior to performing the field verification.

9.1.2 Weld Verification The weld verification walkdown, when required, shall be performed by teams of at least two welding engineers qualified in accordance with Section 5.0. Each team member will have reviewed available photo-graphs of the welded connections. They shall also be familiar with the miscellaneous steel and platform details and the contents of the walkdown packages, including the weld details as shown in the drawings.

9.2 Ouality of the Walkdowns In order to ensure adequacy ar. tiformity of the data collected and verifications performed during the walkdown process, an independent walkdown team s'.all

' randomly verify the data collected during walkdowns. The results obtained by the independent walkdown team shall be trended to determine and implement appropriate action (s), including additional training of walkdown personnel, as necessary.

The independent walkdown team personnel shall be qualified and trained in accordance with this procedure. These personnel may be used for conducting regular. walkdown activities, however, they shall not verify their own work.

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. I Procedure No WDP-002. Rev. I Page 16 of 26 WA!.KDOWN PROCEDURE

' 9.3 Trackinc of Irrecularities When an irregularity is found within the scope of this program, no trouble-ticket will be issued per CP&L procedure AI-79. These irregularities will be document-d in the walkdown packages and then evaluated by the controlled Engineering Evaluation Procedure.

If an irregularity or nonconformance outside the scope of this program it noticed by walkdown personnel, they shall inform the Project Walkdown Supervisor upon -

leaving the work area. He shall document the irregularity and transmit it to the CP&L Field Support Supervisor for disposition.

10.0- MEASUREMENT ACCURACY The field measurements shall be made with the accuracies listed below unless other criteria are specified in the specific walkdown package.

10.1 Clio Angles

1. Clip Angle Size: ~

a. Leg widths i1/4" b.- Thickness il/16" *

c. Edge Dis ^.ance (Clip Angle) il/8"

2. Bolt Gage (Clip Angle) 1/4" 10.2 - Mcmhtn

-1. Flege width il/4"

2. Section depth il/4"

3. Flange Thickness 1/16" 4.. Web thickness (when possible) 1/16" 10.3 ~ Surface-Mounted Plaic

1. Width and length il/2"

2. Bolt edge distance 1/4 " __

3. Thickness il/16"

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=6 I Piucedure No. WDPM Rev. I Page 17 of 26 1 WALKDOWN PROCEDURE 10.4 Attachments..

. 1. Location along the length i6" of members Eccentricity with respect to -

2. 12" centerline of frame members

3. 1.ocation on the embed or 1/2"

surface-mounted plate. '

'10.5 Bohs

1. Diameter - Closest 1/8" ir.crement

-2. Slot length (when poMble) 1/4"'

3. Hole diameter (if visible) Closest 1/8" increment 10.6 L Weld Leneth for length less than 3" -1/8" for length 3" or longer -1/4" 10.7 Irreguianties:

1 Gaps .- _

Greater than 1/4"

2. Crack lengths . - 1/8" y

in  ; 11.0: DATA COLLECTION 11.1 P W ure u

y Prior to performing the walkdown,.the best available design documents shall be .

C" collected and_ reviewed, including the; latest available revisions -of ~ design -

U fdrawings, fabrication and erection drawings, and modification documentation.

This data shall be summarized and included in the forms identified in Exhibits G -

through M _of this procedure. - Additional data sheets and/or sketches may be -

W prepared and used as necessary to' describe design and field conditions.

- Considering the difficulty of collecting data (particularly in high radiation areas, such as the drywell) the following procedure may be used:

L e

_i.- .J_.. J... . . . - _ 4 _. - - , - ,

i-Pnxxdun: No. WDP@2, Rev.1 Page 18 of 26 WALKDOWN PROCEDURE

a. Prior to data collection, photographs will be taken of each end connection, including the clip angles, bent plates, beam seats, bolts and/or welds. A sufficient number of scaled photographs should be taken to perma documentation of irregularities by examination of photographs. Each photograph should be positively identified with the re. lated connection and walkdown package number. A ruler should oc included in the photographs to determine thickness- -

es and dimensions.

b. Evaluation engineers and welding engineers will resiew the photographs and identify members and connecdons that will be subject to data collection und/or welding verification. The criteria for data collection is consistency with design drawings: only those connections which, based on the review of photographs, arejudged to be different than that shown on the drawings should have detailed measurements taken. The criteria for welding verification is judgement based on experience: only those welds which, based on the review of photographs, are judged to be less than that shown on the design drawings or to have significant irregularities rced to be walked down for verification.

c. . Data will be collected by the w Jkdown teams on those connections identified in Item b. _

d. Welding engineers will verify the welding of those connections identified in item b.

The accuruy by which the data in the following sections should be collected is given in Section 10.0.

11.2 Miscelixneous steel and drywell platform steel members identified in accordance with Section 11.1 will be walked-down to verify the following attribute:::

11.2.1 Member Sized For wide flange, channels, and structural tees measure width, depth and flange thickness in order to identify the member size.

For L;gles, measure the width of both legs, and the thickness.

l

Procedun %. WDP&l2. Rev. I Page 19 of 26 WAtXDOWN PROCEDURE For structural tube, record the width and depth, and, if possible, the thickness. If thickness can not be measured, indicate in the notes.

Attachments to the member and data regarding the end connection should be recorded using the appropriate forms.

In addition, conditions that may resuit (or may have resulted) in reduced ca;w:ity should be noted, including:

1. Visible cracks, panicularly at cepes

2. Bent or warped flanges (for 'W and C shapes)

3. Bent webs 4, Unusual copes

5. Cutouts in webs and flanges

6. Wrong member orientation Data to be recorded for membm is indicated on Exhibit G.

Members will be identified using the following codes:

Wide Flange . . . . . . . . . . . . . . . . W Channel . . . . . . . . . . . . . . . . . . . . C S shapes ...................S Angir .... ...............L Structural Tees . . . . . . . . . . . . . . ST -

Structural Tubes . . . . . . . . . . . . . . TS 11.2.2 Connections

1. Confirm that connection configuration is cotisinent with the design information. If not, indicate the differences on the forms, if possible. Otherwise preve a sketch to show details and/or take a photograph of the coi.:.ation.

2. If connection includes clip angles, seat angles, or restraining angles, measure the thickness and width of each leg to identify the angle size.

3. Verify the dimensions of stiffeners on seat angles, if they exist.

l

h, i d f ..

~ '

.i .

Procedure No. WDP 002, Rev.1 1 Page 20 of 26 ~ l.

WALKDOWN PRCCEDURE -

6- .

l l

4. Record if an angle shown on design drawings is made of bent i platei A bent plate'can generally be recognized by the lack of a ,

square corner and greater inside radius. Verify all bent plates for j cracks;'If cracking is present, record the length and provide a 1 g, . sketch showing its location.

a ,

5, Record excess gaps between faying surfaces on Exhibit G.

6. Record any significant bending or distortion to angles.

Data to be collt.cted for clip. angles and beam seats and restraining angles are shown on Exhibit J, and K, respectively.

11.2.3 Welded connections w

1

' l .- Compare _ weld locations and length with design information, y Record differences,- as necessary.

,s <

2. Evaluate the welds using the criteria given m Appendix A for the indicated parameters and fill'otit Exhibit A-1.

, 11.2.4 Bolted connections

,7

1. Compare nurnber of bolts.with design infonnation and record differences.

e,. c ,

-2. Note diameeer of bolts and compare with design information. (Go-No go gauges may be used to determine bolt diameter.)

3. 'If possible, note markings on bolt andadentity it as an A 325,.

A 490, or other.

y Dj 4; Record if bolt is loose (gaps exist between head, or nut, and clamped elements). ,

'5. Measure the-closest distance between two adjacent bolts and

, . compare with desipt information

> 1

6. Measure minimum edge distance between bolt and edge of clamped .

L component.

u

{.

lb l w .:

Procedure No. WDPM, Rev.1 Page 21 of 26 WALKDOWN PROCEDURE

7. Note if washers do not exist.  :

.n

• Data to be collected on bolted connections are down on Exhibit J and Exhibit K, for clip angle, and beam seat and restraining angle connec-tions, respectively.

_.U b 11.2.5 Attachment locations IEB 79-14 supports have been located as part of the CP&L walkdown.

This-information should provide the location on the beam and any 3 eccentricity. During the ftrst four walkdowns in Unit 2, these attach-ments will be verified visually and their locations will be checked. The walkdown team shall identify these attachments on the walkdown package before making field verification using the Exhibit H form.- If the data is within the accuracy required by this procedure, verification of the location of these supports will be deleted from the program.

Identify the location and type of attachments of piping greater than 10" Q. in diameter and cable tray supports with more than 4 trays. Piping

' smaller than 10" diameter (except those included in the 79-14 program),

cable trays with less than about 4 tiers, conduits' and HVAC will be included in equivalent uniform (smeared) loads. For these commodities,

, _ equivalent area or line loads on members will be determined as defined on a footprint or on a plan area basis by a detailed _ attachment. load g survey of one segment of the reactor building and drywell at two or more different elevations.

Data to be collected on attachments is shown on Exhibit 1.

, If the attachment is more than 2 inches eccentric with respect to the reference point shown on Exhibit 1, it should be recorded on the applicable forms. In addition, attachment stiffener plates and welds should be identified and recordu.i.

I1.2 Embed plates Embed plate attributes needed to identify the embed type and verify the load-carrying capability shall be recorded. Data to be collected includes:

a- e

h ---

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[,- l ., j *

"y,,' A" . .;

Procedurt No. WDPM. Rev.1-Page 22'of 26 WALKDOWN PROCEDURE

11. Surface width and length (very long embeds should be so indicated without l measuring) .

~

2. Length of welds

'3. ~ Location of the attached member. - This can_ be identified by measuring the.

offsets to any two corners of the member.

4 Location and identification of other attachments on the same embed within 24

-inches of the connected member.

~ 5. - Location of openings, abandoned holes, other embeds, or. surface-mounted plates within 12 inches of the edge of the embed.

6. Any significant damage to_the embed or separation from the concrete over a large area, '

' Data to be collected on embed plates is shown on-Exhibit L.

4 11.3l Surface-Mounted Plat *<

.Shrface-mounted plate and anchorage attributes needed to identify tne type of  :

plate and verify the load-carrying capacity shall be recorded.

11.3.11 Surface-Mounted Plates:

1. Surface width,' length, and thickness

2. Length- af welds to the attachment 3.' Location of the' attached member. This can be identified by measuring the offsets to any two corners of the member.

4. Location and id atification attachments on the same plate within 24 inches of the connecting member.

'5. Location of openings, abandoned holes, embeds, or other SMPs within 12 inches of the edge of the surface-mounted plate.

t 4

4

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.. - .. ~. . . . - ~.

> -- 6< 3.. i '

-n Procedure No. WDP@2, Rev.1 Page 23 of %

WALKDOWN PROCEDURE '

_6. Any significant damage to tne surface-mounted plate or separation from concirte over a large area.

I1.3.2 Expansion Anchors and Anchor Bolts on Surface-Mounted Plates Compare the following with the design information and record .

differences and/or inegularities.

1. Size and type of anchor (if visible marks exist)

2. Number of anchors

' 3. Location of anchors on plate

4. Flame cut holes (if visible)

5. Oversize hole.s (if visible)

6. Loose or missing bolts

- 7. Concrete edge distance (if within 12" inches of bolt centerline)

8. . Abandoned holes within 12 inches of bolt centerline

9. Thread engagement less than flush with the surface of the nut 12.0 WALKDOWN DOCUMENTATION 12.1 Docunientation Sinn-offs -

12.1.1 The area -sketches (which define the scope _ and show member and connection ID number) used in the data collection walkdown and all data sheets, photographs, and/or sketches shall be signed by the package preparer; package checker, and Walkdown Group Supervisor prior to the walkdown. The walkdown team members shall also sign all data sheets and sketches after completion of the walkdown, signifying all member connections have been verified as required, f

Procedure No. WDP-002, Rev.1 I

h Page 24 of 26 WALKDOWN PROCEDURE 12.1.2 The verification reports by the weld enginects shall be signed and dated by both members of the welding verification walkdown team. These reports shall be included in the appropriate Phase II Walkdown Package.

12.1.3 The Phase 11 Walkdown Package Cover Sheet shall be signed by the walkdown team members in appropriate blocks. The package will be reviewed by the Project Walkdown Supervisor and signed and dated.

{

12.1.4 The final Phase 11 Walkdown Package shall be filed and maintained by area.

12.2 Gannes to Walkdown Packages Revision to walkdown packages, including correction of editorial and transcription errors, obtaining additional data, and additional or revised calculations, shall be- '

checked, reviewed, and approved in the same manner as the original walkdown package. Revisions shall be identified by a bar on the margin or encircling the revised item. The revision number shall be updated and the revision preparers

nd revision date shall be identified.

12.3 Electronic Database An electronic database will be created listing hil the identified members verified as part of the walkdown. They will be listed by their unique identification numbers and cross-referenced to their walkdown package and the design drawing used.

12.4 .Comnleted Walkdownlackare 12.4.1 The completed Phase II Walkdown Package will consist of the follow-ing, as a minimum:

' 1. Completed Walkdown Package Cover Sheet (Exhibit A)

2. Walkdown Package Index Sheet (Exhibit B)

3. Walkdown Drawing List (Exhibit C)

4. A copy of Area Designator Sketch (Exhibit D)

5. Area Sketch (es) (Exhibit E)

6. Appropriate Data Sheets, and attachments (Exhibits G through M)

7. All photographs

8. Welding Verification Data Sheets (Exhibit A-1), if any

-. _ - - - - - - - - --- - - A

e Procedure No. WDF-002, Rey 1 Page 25 cf 26 WAl.KDOWN PROCEDURE 12.4.2 All m.rts in the walkdown package shall be appropriately numbered.

12.4.3 The walkdown package shall be reviewed by the Project Walkdown Supervisor to ensure that it is complete and data is sufficient for engineering analysis prior to issuing as Rev. O. If a calculation is involved, the engineer will obtain the calculation number and enter it in block 10. If no calculation is required, N/A will be entered in block 10.

12.4.4 Completed and revised walkdown packages shall be forwarded to Bechtel Document Control for distribution to Bechtel Engineering and others in accordance with the Project Master Distribution Schedule.

CP&L Document Control will ensure comp!cted packages are vaulted and input into NRCS.

12.4.5 The final walkdown packages shall be filed and the files maint-J al by Bechtel Document Control until completion of the project ai.e then transferred to CP&L for permanent retention.

13.0 REFERENCI'$

1. EDP 5.34 " Indoctrination / Orientation and Training," Revision 0

2. Installation of Seismic Pipe and HVAC Supports and Miscellaneouc Steel, Specifica-tion 248-107, Rev.14

3. AI-79, Rev. 006

4. AI-107: Rev.1

5. BSEP Field Engineering Inspection (As-Building), NED Guideline E-9, Rev. 0

6. Specification ~ for Furnishing and Installation of Miscellaneous iron & Steel, Specification No. 018-002, Rev. 4, January 1986

7. Specification No. 9527-01-12-2, Specification for Sacrificial Shield and Dr)vell Interior Structural Steel

t Procedure No. WDP 002,' Rev.1 --

Page 26 of 26-WALKDOWN PROCEDURE 14.0 M A - - Phase II Walkdown Package Cover Sheet .

B '

. Walkdown Package Index Sheet

-C - _ Walkdown Drawing List D Walkdown Area Designator E - Area Sketches -

F_ - Physical Irregularities Checklist G- -

Structural Membe. Data Sheet H 14 Pipe Support Attachment Location

I- - Attachment Data Sheet

J - ' Clip Angle Data Sheet K-- Seat and Restraining Angle Data Sheet

L - Embed Data Sheet M - -- Surface-Mounted Plate Data Sheet L

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, Procedute No. WDP 002. Rev.1 EXHIBIT A Pope 1 of 1 Sheet _ of _

PHASE 11 WALKDOWN PACKAGE COVER SHEET WALKDOWN PACKAGE NO.

l

-1. Bechtel Jo'b No.

2. Walkdown Package No. l I

3. Reference Drawing No.

4. -Area '

5. Unit

~

L6. . Building

17. Package Preparer- Date 8.- ' Package [ Checker, Date __

9. ~Walkdown Group Supervisor Date

10. ' WDP-002 Log Control Number . ,

TEAM TEAM PROJECT-MEMS. MEMS, WALKDoWN ,

REV-- - #1 #2 SUPERVISOR DATE REASONS FoR REVIStoN I

i .,

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SQ Procedure No. WDPM, Rev.1 TXHIBri B l Pege 1 of 1 l Sheet _ of _ I PHASE il WALKDOWN PACKAGE

,. INDEX SHEET I WALKDOWN PACKAGE NO, i

Package Number:

Unit No, Building Area -

CONTENTS

.Y.fUi ' MQ Walkdnwn Package Cover Sheet (1 pays)

_. Index Sheet L pages)

Walkdown Design Drawing List 11 page)

Area Designator Sketch (1 page)

, , _ . . Area Sketc.nes L pages)

Physicel irregularities Checklist Structural Member Data Sheet -

_ 7914 Pipe Support Attachment LocC.': n

. Attachment Data Sheit Clip Anole Data Sheet Seat and Restraining Angle Data Sheet Embed Data Sheet Surface Mounted Plate Data Shet.t Connection Details L pages) ji Weld Verification Data Shest.

Additional Documents or information (as listed balow) (,,,,,,,, pages)-

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PHASE ll WALKDOWN PACKAGE NO. PAGE_,_OF _

WALKDOWN DRAWING LIST i i DRAWING NUMDER REV. DRAWING NUMBER REV.

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' Procedure No. WDP.002. Rev 1 EXHIBfT F Pege 1 of 1 Sheet _ of _

PHASE ll WALKDOWN PACKAGE PHYSICAL IRREGULARITIES CHECKLIST

& IRREGUL ARITY Desian/Constrtction

1. Weld Missing

2. Weld Undersized

3. Weld in Lieu of Bolt or Bolt in Lieu of Weld 4 Washer M;ssing

5. Oversize Bolt Hole 6, Flame Cut Bolt Hole

7. Welds on Bolts or Nuts i 8. Lack of Thread Engagement

9. Abandoned Connection

! 10. Gap Between Beam and Beam Seat i 11. Deformation of Embedded PL. (Bowed, Pulling Out, etc.)

12. Connection Member Size (not as shown on design drawing \

13. Structural Member Size not as shown (by visual observation)

14. Twisting of Member

15. Bent or Deformed Member Maintenance 1 1. Bolt Missing I

2. Bolt Loose

3. Washer Missing

4. Nut Missing

5. Welds on Bolts or Nuts

6. Lack of Thread Engagement

7. Connection Member Missing

8. Abandoned Connection j

9. Gap Between Beam and Beam Seat l

_ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ . _ _ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~ ^ - - - - - - ' - ~~~~~~~~-

j

, ,. Procedurs NL WDP4o2 Rtv.1 EXHIBIT G

, Pope 1 of 1 Sheet _ of _

PHASE 11 WALKDOWN PACKAGE STRUCTURAL MEMBER DATA SHEET WALKDOWN PACKAGE NO.

MEMBER ID -

Drawing Actual

1. Member Size

2. Member Type - W S C L ST TS W S C L ST TS

- 3. Flange Width (in)

!4. Depth (in)-

5. - Thickness (fig or leg) (in) 6.- Does drawing agree with actual /

~ Check W) oppropriate response. N response is V* comte required form

7. 7914 pipe supports (Exhibit H)

8. . Major attachments (Exhibit il identify the tonoMng items, when they enst, by checkmg W) the appropr.' ate line.'

A B A B

= 9. Clip angle (left) /- /

10. Clip angle (tight) / /

11. Seat angles. / /

12. ' Restraining angles' / /

13. Bent plate / /

14. Embed plate / /

1S. Surface mounted plate / / -

16' Base plate

/ /

17. Fully welded connection / /

For the followmg iteme. lf response is *N", desenbe:

Remarks

18. Free of cracks at copes? Y N

19. Flanges free of warping? -Y N

20. Webs free of distortion? Y N

^

21. Gaps between connected Y N members acceptable? (< %")

22.- Free of visible damage? Y N-

23. ' Copo length (worst case) 24.' Distance between beam web and surface of the connected member 2S? Additional Comments:

. A refers to the *A conneaion,' B refers to the *B conneaion. ' Left i.s left of the obserwr standing at

. connection A and looking at B.

. , - ~ . . -

c.

Procedves N o. WDP oo2, Rtv.1 -

ExHlalT H P8981 of 1 Sheet _ of _

PHASE 11 WALKDOWN PROCEDURE 79-14 PIPE SUPPORT ATTACHMENT LOCATION WALKDOWN PACKAGE NO.

MEMBER !D (Information taken from 7914 walkdown data prepared by CP&L).

CP&L Data Field Check (as required)

Support No. Attachment Point' Attac 1 ment Location 8 X! X:

Y: Y:

z: z:

Support No. Attachment Poin;# Attachment Location 8 X: X:

Y: Y:

z: z:

Support No.  : Attachment Point

• Attachment Location' X: X:

y:- y:

2: 2:

1Support No. Attachment Point: Attachment Location' x: x:

Y: Y:

z: z:

Notas: 1. For definition of X, Y, Z, see Exhibit 1.

t_ 2, if support has more than one attachment to the beam, identify each attachment point

! as A, B, etc.

l'

3. Attachment Location: Top Flange (TF), Web (W)f, Bottom Flange (BF), etc.

Procedurs No. WDP@2, Rev.1 EXH:8f7

, Pege 1 of 1 Sheet _ of _

PHASE 11 WALKDOWN PROCEDURE ATTACHMENT DATA SHEET WALKDOWN PACKAGE NO.

END . . . MEMBER... END . . . . .

9 9 f

x 4 > ^

Z

._____.y ; Y

! Y Point of  ; g 7 m fTEM TYPE: $UPPORT TYPQ P1 = 79-14 PlPING (> 4* diam) R = ROD P2 = NON-79-14 PIPING (> 10' diam) C = CANTILEVERED CT = CABLE TRAY (> 4 tiers) B = BRACED PR s PlPE RCSTRAINT F = FRAME OT = OTHER O = OTHER SUPPORT BAACENRAME (TEM OSSTANCE AVERACE SPAN No. TYPE & St21 X Y Z TYPt TRANS LONO VER TRANS LONG NOTES l I l  !

l  ! I l  ! l TI i l i l I L i i i I i i i l l  !

l I I I l l

! I I  !

l  !  !

! l l I

! L I I  ! I I I I  ! l I

.. . ~ - . ... . _ - , _

-..,. .g Pvtcodure Ns. WDP@2. Rev.1 ,

EXH681T J Peee 1 of 1 Sheet _ of _

- PHASE ll WALKDOWN PACKAGE CLIP ANGLE DATA SHEET

' WALKDOWN PACKAGE NO. .

1. Connection Designation :

2. Connection Data - DAAwmos ACTUAL

a. Angle size (web side first)= x x x x-b.-- Angle length was oursT.12e was ouTsT. Lao

c. Bolted (B) or Welded (FW, SW)'

- d. Number of bolts

e. Bolt type (A325) (A490)

f. Bolt size P

g. Minimum edge distance t'. bolt (Angle (A), Web (W),

Flange (F)]

= h. -? Weld Length

. top left top right .................

sideleft-... ........... ..

side richt .................

bottom left- ...............

bottom right .............

-~

- 3. Connection irregularities (describe "N" responses) Y OR N - - REMARKS

a. Free of cracks? Y N b.: Gaps between faying surfaces acceptable? Y N

( < % ") '

c. Slotted holes regular? (indicate if on drawing) Y N i

d. Free of visible flame cut holes? . Y N

'e. Bolts visibly tight / nuts in place? - Y N-

- f. ; Full thread engagement (indicate number of Y N bolts / worst case threads not engaged) h l g. , Bolts are in place? Y N

} .'

h. Welds per design drawings? Y N

' FW ~ Field Weld, SW = Shop Weld 2

h)t it left of the obserwr . standing at conneaion A and looking at B.

_- e M

-4

i

Proc 6 . ' ho. WDP o02. Rw.1 ExHIBrf K

, Page 1 of 2 sheet _ o' _

PHASE ll WALKDOWN PACKAGE SEAT AND RESTRAINING- ANGLE DATA SHEET WALKDOWN PACKAGE NO.

SEAT ANGLE

1. Connection Designation

2. Seat Angle Data DRAW 1Nos ACTUAL

a. Angle size (beam flange side first) x x x x_

b. Stiffener size, if exists Ft.ANGE OUTsT.LEQ FLANGE oUTsT. LEG

c. Bolted (B) or Welded (FW, SW)'

d. Number of bolts

e. Bolt type (A325) (A490)

f. Bolt size

g. Minimum edge distance to bolt (Angle (A), Web (W), Flange (F)]

h. Weld Length top . ................

sides ... ...........

3. Seat / Sie irregularities (describe 'N' responses) Y OR N REMARKS

a. Free of cracks? Y N

b. Gaps between faying surfaces Y N acceptable? (< % *)

c. 85ttea hobs regular? (indicate if on Y N orawing)

d. Free of visible flame cut holes? Y N

e. Bolts visibly tight / nuts in place? Y N

f. Full thread engagement (ind:cate number Y N of bolts / worst case threads not engaged)?

9 Bolts in place? Y N

h. Welds per design drawings? Y N FW = Field Weld, SW = Shop Weld

~ - . . . . . - . _ . ~ - , __._._...._...~.____.._._.-.__..~_.._.__.___._m _._ .

Procedure No. WDP.oci. Rw.1 (EHierT K -

q:

e Peee 2 of 2

, sheet _ of ,,,,,,

PHASE il WALKDOWN PACKAGE SEAT AND RESTRAINING ANGLE DATA SHEET  :

WALKDOWN PACKAGE NO. -

RESTRAINING ANGLE ~

1. Connection Designation

. 2. Angle Data DAAWWGs *MTUAL

a. Angle size (beam flange or web side first) x x x x_

b. Stiffener size if exists _

PLANGE OUTeT. LAG FLANGE OUTsT. Ls0 w was w was

c. Bolted (B) or Welded (FW,' SW)'

i

d. Number of bolts _

e. Bolt type (A325) (A490)

f. Bolt siza

g. Minimum edge distance to boM (Angle (A), Web (W),

Flange (F);

h. Weld Length I

• . for beam web connection

-top and bottom tands) ........

side ....................

-e for beam flange connection ends ....................

side ..... ........... .. '

Y OR N REMARKS

3. Seat Angle Irregularities'(describe v responses) -

a. Free of cracks? Y P8 b.' Gaps between faying surfaces Y N accootable?- ( < % *)

c. Slotted holes regular? (indicate if on drawind Y N _

~ d/ Free of visible flame cut holes? Y N e.; Bolts vieibly tight / nuts in place? - Y N

f. Full thread engagement (indicato number of ~

Y N bolts / worst case threads not engaged)

. g. Bolts in place? Y N _

h. Welds per design drawings? Y N 4

FN = Field Weld, .M = Shop MM 1.

i.i s . .- . _ _ . _ . _ - . . ._.,.----e~. . ~ , _ _ _ . _ - , , - _ _

l Procedure No. WDP 003, R@,1 EXHitf7 L Pop.1 of 1 s s.. __ et ,_

EMBED DATA SHEET WALKDOWN PACKAGE NO.

1. Connection

2. Embed Nc _

3. Embed and Attachment Data Drawing Actual

a. Drawing No. __

b. Width

t. Length .___

d. Minimum distance between attachment wd edge of embed _.

4. Embed irregularities (describe "N" responses) Remarks

a. No other attachtnents inside Y N Y N influence zone?'

b. No free cdges, abandoned holes Y N Y N penetrations, or other embed / surface mounted plates 12" ct less from embed?'

c. Warping acceptable? < %" per ft.) Y N _

d. Gaps between embed and concrete Y N acceptable?' < %")

REMARKS:

' On the same embed and 24 inches or less from member attachment.

• If *N" provide description, location, and attnhment stre on sketch, if different than design drawing, I

i

. Procedars N3. WDP.OQ), Ray,1 EXHIBfT M Pope 1 of 1 s s..i _ .# _

PHt.5E 11 WALKDOWN PROCEDURE SURFACE MOUNTED PLATE (SMP) DATA SHEET WALKCOWN PACKAGE NO. _

1. Connection

2. CMP No.

3. SMF Data:

Drawing Actual

a. Drowing No. __

b. Width

c. Length

d. Thickness

c. Size and type of an. hor

f. Golt Iscations from SMP edge

g. Minimum distance between attat nent and SMP edge .

4. SMP Irregularities (describe "N" responses) Remarks

a. Are there no other attach Y N Y N ments inside the influence zone?'

b. Are there no other Y N Y N surf ace mounted plates within 12" of SMP?'

c. Are there no concrete Y N Y N edges 12" or less from anchor bolts?'

d. Are there no abandoned holes or Y N penetrations 12" or less from SMP?

e. Free of flame cut holes (if visible)? Y N

f. Oversize holes (if visible) acceptable? Y N

g. Bolts visibly tight? Y N _

h. All bolts in place? Y N ._

i. Full thread engagement Y N (indicate number of bolts / worst case threads not engaged)?

j No warping or separation from conc. Y N acceptable?2 Y N REMARKS:

' On the same SPM and 24 incha or lasfrom n : <ber attachment.

• Pr- 'ide datription, location and anachment si:e on sketch ifdiferent than daign drawing.

-- -. - - - -._ . - .-- - - - ~ ~ - - - . - . __ --

, 4 .

5 Procedure No. WDD@2. Rev.1 APPENDIX A Pope 1 of 5 i

Appendix A WELD VERIFICATION A.1 Weld Verification Criteria Weld lengths shall be obtained by walkdown personnel or from the high resolution photographs. Weld sizes and all other weld attributes shall be verified by welding engi-neers. The welding engineers 'vho will perform the weld verifications shall be designated by the Bechtel M&QS Manager and be qualified in accordance with Section 5.0.

A.2 Extent of Verifica!!on The welds that will be subject to field venfication may be identified from the photo-graphs of connections as stated in Section 11.1 of WDP-002. All welds identified for visual examination shall be verified by two welding engineers using this Appendix A.

Where configuration of the structure or obstructions prevent direct measurement of the weld, the weld symbol shall be reported as "not obtainable (N/0)."

L A3 Attributes to be Verifled The verification of welds included in the scope of this walkdown is limited to the determination and recording of the following weld Attributes:

1. Length: Weld joint shall be consicered welded full length, unless otherwise noted by the weld symbol.

l 2. Location: As specified on the drawing.

! 3. Sim Measure and record fillet weld size; for unequal leg fillet welds, record the size of smaller leg.

4. Genemle It is recognized that surface coatings and surface slag may mask many attributes. Welding walkdown team members shall make the best determination possible without the removal of coatings or slag, r

l:

t Ft%te No, WDP402, Rev.1 APPENDIX A Pope 2 of 5 A.3.1 Weld Length and Location

1. liya] union Guidelines: ' Welds should be visually evaluated to determine that they are in the locations shown on the design drawings. Weld length should be measured as follows:

For weld lengths less than 3 inches, a tolerance -1/8 inch shall be applied to the recorded tu.gth. For welds 3 inches or longer, a -1/4 inch tolerance shall apply.

Welds are usually designated as full length of the member or continuous. -

When the length of a weld is specified, it usually applies to intermittent welding, such as, '3 inches long at 12 inches center to< enter," or "6 inches long at 12 inches center to-center.' The total sum of the lengths of the intermittent welds is more important than the actual length of the individual intermittent welds. Either way, a 1/8 inch or 1/4 inch measuring accuracy shall be used.

Intermittent welds may be located within 1 inch of the designated location.

Measurements shall be rounded off to the nearest 1/16 inch for size; and to the nearest 1/8 or 1/4 inch for length; and to the nearest inch for location of intermittent welds.

A.3.2 Fillet Weld Size

1. Accentance Criteria: A fillet weld shall be permitted to be less than the size recorded by 1/16 inch for 1/4 the lengt of the weld.

2. liEaluadon Guidelines: The team member shall measure weld size using appropriate measuring devices. Potentially undersize arecs are the most appropriate locations for measuring weld size. Such areas can usually be deterr..ined by viewing the weld length.

Scales or fillet weld gauges should be used for measuring the size of welds.

Measurement increments of 1/16th inch are appropriate for these gauges.

The welding engineers have the responsibility for determining weld size but continuous measurement of size over the full length of the weld is not mandatory.

O e

Proceduto No. WDP 002, Rey,1 APPENDIX A Pope 3 of 5 A.3.3 incomplete Fusion 1

1. Acceotance Criteria: In fillet welds, incomplete fusion of 3/8 inch in any 4- l inch segment and 1/4 inch in welds less than 4 inches long, is acceptable. l For groove welds, incomplete fusion is not acceptable. For fillet and groove  !

welds, rounded end conditions that occur in welding (stans and stops) shall not be considered indications of incomplete fusion and are irrelevant.

2. Evaluation Guidelings: Evaluation for incomplete fusion shall be perforrned by visually examining the weld. The wetting and flot, of weld metal at the fusion lines is the best indication of fusion. Indications ofincomplete fusion at the start and stop of a weld that are observed only at the weld root are not indicative of the fusion in the main run of the weld. This apparent incomplete fusion is the result of transient conditions and should be considered acceptab!c. These brief transients affect only a very short portion of the weld and are not a cause for rejection because the main run of the weld is not affected. Measurements of incomplete fusion length should be rounded off to the nearest 1/8 inch.

A.3.4 Weld Cracks

1. Breptancs Criteria: The weld shall have no visible encks.

2. Eyaluation Guidelines: Visible weld cracks shall be identifled for repair. If a weld with cracks is not repaired, it shall be considered ineffective in <

carrying load and an analysis of the connection shall be made on that basis.

The use of devices for detection of cracks by visual examination is not required other than a flashlight.

A.3.5 Undercut

1. &centance Critnia: For material 3/8 inch and less nominal thickness, undercut depth of 1/32 inch on one side for the full length of the weld or 1/32 inch on one side for 1/2 the length of the weld and 1/16 inch for 1/4 the length of the weld on the same side of the member is acceptable. For members welded on both sides where undercut exists in the same plane of a member, the cumulative lengths of undercut shall be limited to the lengths of unde ~;ut allowed on one side. Melt through that results in a hole in the base metal is unacceptable.

For materials greater than 3/8 inch nominal thickness, undercut depth of 1/32 inch for the full length of the weld and 1/16 inch for 1/4 the length of the

t

. , . O g

h Procedute No. WDP<c2, Rev.1 APPfNDIX A Page 4 of 6 weld en both sides of the member is acceptable. When either weld or undercut nist only on one siue of the member or the undercut areas are not in the same plane, the allowable undercut depth of 1/32 inch may be increased to 1/16 inch for the full length of the weld.

2. Evaluation Guidelines: The criteria for determining tb. acceptance of undercu' are depth and length. The method to be used for determining acceptable depths is primarily visual.

Undercut depth is to be estimated to the nearest 1/32 inch and undercut length is to be estimated to determine compliance with the length of undercut criteria. There are significant margins in these criteria so that it is not necessary to sum isolated intermittent undercut (i.e.1/4 inch here, S/S inch there) to develop the total length of undercut.

Areas that potentially exceed the acceptance limits may be evaluated using a scale, comparative sample, or suitable gauge to determine the depth of undercut and assess the equivalent length and size of the weld.

A.3.6 Surface Porosity

1. Accentance Critsda: Only surface porosity whose major surface dominion exceeds 1/16 inch shall be considered relevant. Fillet and groove welds that contain surface porosity shall be con.eidered unacceptable if:

The sum of diameters of random porosity exceeds 3/8 inch in any linear inch cf weld or 3/4 inch in any 12 inches of welds; or four or more pores are aligned and the pores are separated by 1/16 inch or less, edge to edge.

2. Evaluaticafiniddints: Porosity voids are generally less than 1/16 inch in diameter. Thus, relatively few are relevant. Very seldom should it be necessary to use any measuring device, but when there is concern, a 1/16 inch wire and a tape or scale are adequate.

Estimating the number of random voids that appear to be over 1/16 inch diameter a 1/16 inch wire can be used to measure both the size of the pores and edge-to-edge spacing of the pores. If the size of a pore is 1/16 inch or less, it is irrelevant and need not be counted; if the spacing between any two relevant pores exceeds 1/16 inch, those pores are irrelevant for the purpose of evaluating aligned porosity.

e *se e

Proceduto No. WDPM2. Rev.1 APPENDIX A e.a. s ., s Areas that potentially exceed the acceptance limits shall be evaluated to assess the equivalent length and size of the weld.

A.3.7 Weld Canacity Weld overlap, underfilled craters, varied weld profiles are acceptable if the eiw and fusion requir:ments are met.

Welds that do not meet the size and fasion requirements or with visibic discontinuities shall be recorded and evaluated to determine their equivalent size and length and recorded on Exhibit A 1.

A.3.8 Documentation Form A-1 shall be prepared for each welded connection included in the we!d verification program. These forms shall become part of the Phase II Walkdow11 Package. ,

.. _ . - _ _ _ . _ . _ - . - _ . _ - _ _ _ . - _ . . . __ _-____.~ _ ___. _ _ _ _ . _ . _ _ _ .

r

?

. , en ..

• Wetang Verify Dete: _ Procedure No. WDP 002, Rev.1 r

' APPENDlX A 1 Page 1 of 1 -

We6dag Verifier #1: Date: Sheet of i

4 WELD VERIFICATION DATA SHEET WALKDOWN PACKAGE NO.

1. Connection Designation 2, Wold identification and Location (circle as many as applicable) speNimCADON LOCADoN

a. Clip angle to web weld CAWW T. S B .

h. Clip angle outstd. leg weld CAOW T S B

c. Seat angle beam weld SABW T S .

A Seat angle outstd. leg weld SAOW T S

e. Restraining angle to beam weld RABW T S B i

f. Restraining angle outstd. leg weld RAOW T S B

, S - Member or angle to embed weld MAEW T S B ti. Other (describe)

Nort: 7 709 s - sDE (S) S = BOTT0at a

3. eWeld Data - cAWW l CAoW $ABW aAoW RABW RADW MAEW

a. Size

~.,

h. Shop (S) or Field (F) weld and indicate length from form J or K T ................ _ , , _ _ .

l' S ................ ._

B ................

L l 4. Weld irregularities (describe "N* re-r sponses)(attach description if necessary) p a.- Free of visible cracks? (Y/N)

k. Free of incomplete fusion? (Y/N)

c. Free of other signifhcst irregulari. _

l ties? (Y/N)

5. weld Derating:

Ufective weld size / length / / / / / / /

._