ML20198L452

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Interim Change Notices 1-4 to Rev 0 to Const Procedure 35-1195-CCP-22, Structural Steel Erection
ML20198L452
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 03/12/1976
From: Childress W, Dodd H, Knowlton J
BROWN & ROOT, INC. (SUBS. OF HALLIBURTON CO.)
To:
Shared Package
ML20197J316 List: ... further results
References
FOIA-85-59 35-1195-CCP-22, NUDOCS 8606040286
Download: ML20198L452 (19)
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CONSTRUCTION PROCEDURE

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9 STRUCTURAL STEEL ERECTION APPROVED BY APPRO D BY A.emcL-.A d /

W. E. Childress, Jr. H. C. Dodd, Jr.

Project Engineer Construction Project Manager i

I PREPARED BY REVIEWED BY m> ef busso .

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e J.jJ. Knowlton P. L. Bussolini Civil Engineer Ouality Assurance l,

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s JOB 35-1195 C Comanche Peak Steam Electric Station

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Construction Procedure INTERIM CHANGE NOTICE NUMBER 4 This . notice applies to Construction Procedure No. 35-1195- CCP-22 , Revision 0 The intent of this change will (X) / will not ( ) be incorporated in the next revision to the procedure.

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-i This Change applies:

j Until Further Notice ( ) Until the next revision is issued (X)

Only as follows:

, Change the procedure as follows:

Delete Paragraph 1.2.2 1

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4 Reason for change:

Not a requirement. Film not available. Ref. IM-7288, Jan. 20,1977 This change approv b:

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! Q JOB 35-1195 Comanche Peak Steam Electric Station Construction Procedure INTERIM CHANGE NOTICE NUMBER 3 i

This' notice applies to Construction Procedure No. 35-1195 CCP-22 , Revision 0 .

The intent of this change will (X) / will not ( ) be incorporated in the next revision to the procedure.

I This Change applies:

i Until Further Notice ( ) Until the next revision is issued (X )

.l Only as follows:

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  • Change the procedure as follows: Fage 9. Daragraph 4.6.1, change st' o 1 to read as follows:
1. Bolts are the correct length as indicated by having the bolt flush with, or outside of, the face of the nut when completely installed.

J O Reason for change: Change in AISC Spec., " Structural Joints Using ASTM A325 or A340 Bolts", dated Feburary 4,1976.

This change a proted by:

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Ouality Assurance Reviewed By:

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. .n JOB 35-1193  !'

Comanche Peak Steam Electric 5tation

' Construction Procedure-2 INTERIM CHANGE NOTICE NUMBER

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This notice applies to Construction Procedure No. 35-1195- CCP-22

, Revision 0 .

The intent of this change will (X) / will not ( )i eb incorporated in the next j revision to th2 procedure.

l This Chango applies:

Until Furtt.er Notice ( ) Until the next revision is issued (X)

Only as follows:

r j Change the procedure as follows: On page nine, delete the 2nd sentence of paragraph 4.4.3.

BROWN & ROOT. INg RECEIVED l

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, 10ALITY ASSURANCE Reason for change: Engineering review of grout procedure not a Specification requirement.

l This change approved  :

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JOB 35-1195 Comanche Peak Steam Electric Station t

Construction Procedure INTERIM CHANGE NOTICE NUMBER 1 This notice applies to Construction Procedure No. 35-1195- CCp-22 , Revision 0.

The intent of this change will (X) / will not ( ) be incorporated in the next revision to the procedure.

This Change applies:

Until Further Notice ( ) Until the next revision is issued (X)

, Only as follows:

Change the procedure as follows:

Q On Daae 9. chanae paragraph 4.6.2. " Welded Connections" to read " Welded and Bolted Connections".

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Reason for change: To include " bolted" connections in orocedure.

i, This ch nge appro ed by:

Department Head

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,' v n 35-1195-CCP-22 March 12,1976 REVISION 0 j PAGE 2 of 14 LIST OF EFFECTIVE PAGES l

The total number of pages in this document is 14. The page number sequence

, and revision status is as follows:

i PAGE REVISION STATUS DATE m

Title Revision 0 March 12,1976 3 2 thru 14 Revision 0 March 12,1976 a

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.t TABLE OF CONTENTS SECTION PAGE 1

1 INTR 000CTION.......................................... 4 1.1 PU R P0 S E . . . . . . . . . . . . . .' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

. 1.2 SC0PE................................................. 4 1.3 GENERAL DISCUSSION.................................... 4 2 DEFINITION OF TERMS, ABBREVIATIONS AND SYMBOLS........ 4 3 SPECIAL ITEMS AND OPERATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . 5 i

3.1 AIR T00LS............................................. 5 3.2 PLUMBING 0P........................................... 5 3.3 CONNECTING................. .......................... 5 3.4 MATERIAL STORAGE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . 5

4. ERECTION PROCEDURE..................................... 6 3 4.1 G EN ERAL R E0V I REMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 W 4.2 BOLTED CONNECTIONS.................................... 7 4.3 FI ELD WELD ED CON N ECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.4 BASE PLATES........................................... 8 4.5 TOLERANCES............................................ 9 4.6 INSPECTION - CATEGORY I............................... 9 4.7 INSPECTION - NON-CATEGORY I........................... 9 5 SUPPORTING INFORMATION............................... 11

5.1 REFERENCES

..........'................................. 11 5.2 ATTA C HM ENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 i

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O. aevtston o PAGE 4 of 14 2 5 1. INTRODUCTION e

i 1.1 PURPOSE i

i 1.1.1 The purpose of this document is to establish methods and procedures for the correct and safe erection of structural steel.

1.2 SCOPE 1.2.1 The scope of this procedure covers all Category I erection, inspection, and material storage of structural steel at CPSES.

This procedure does not cover the safety aspects of erecting

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structural steel, however, all persons involved in the erection of structural steel need to take all necessary precautions for personal protection and safety.

1.2.2 A Brown & Root training film has been develoM which illustrates many safety requirements as well as technical reoufrements for the safe erection of structural steel and it is recommended that all persons directly involved in the erection of structural steel view this presentation.

, 1.3 GENERAL DISCUSSION 1.3.1 This procedure was established for the erection of structural steel in category I structures. This procedure may also be used in whole or in part on non-category I structures as directed

{ by the B&R Project Manager.

1.3.2 This procedure identifies pertinent and necessary criteria for I safe and correct erection of structural steel. The reader should also read all referenced material and comply with it's contents where applicable.

1.3.3 The only exception to the above is ANSI 45.2.5 - 1974 which was used only as a guide and is not a specified requirement for this project.

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2. DEFINITION OF TERMS, ABBREVIATIONS AND SYMBOLS
2.1 TERMS i O 2.1.1 Structurai Steei - ina u se as descrieed in Giees & N m spec-l ification 2323-SS-168 - (Category I) or 2323-SS-16A - (Non-l Category !).

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REVISION 0 4 PAGE 5 of 14 y

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3. SPECIAL ITEMS AND ' OPERATIONS t

i f 3.1 AIR TOOLS I All pneumatic hand tools shall be disconnected from the power 3.1.1

! source and line pressure released prior to any tool adjustment or repair.

3.1.2 Air lines shall be tied together at line joints except when automatic cut-off couplers are used.

3.2 PLUMBING UP 3.2.1 Guy lines shall be placed so that welders and bolters can get at the ccnne: tion points.

3.2.2 . Guy

  • lines shall not be removed without first getting pemission from the B&R rigging superintendent.

h 3.3 CONNECTING 3.3.1 When connectors are working in pairs, one end of the piece should be bolted with not less than two bolts (one bolt may be used but placed in the top hole and pulled tight) before one of the connectors goes out to connect the other end.

3.3.2 Whenever possible, an employee should straddle the ' beam instead of wa141ng along the top, i 3.3.3 When setting columns, before lifting falls are unhitched, either the nuts on the anchor bolts shall be drawn down tight or temporary guys attached.

f-3.3.4 A piece shall never be cut loose (load lines disconnected) until the required minimum number of bolts have been installed.

Pins or wrenches in a hole shall not be relied on.

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{ 3.4 MATERIAL STORAGE REQUIREMENTS i

! 3.4.1 Structural material, either plain or fabricated, shall be stored 4

on the site above the ground upon platforms or skids.

3.4.2 All material shall be kept free from dirt, grease, and other

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3.4.3 Material subject to extended exposure (over one year) shall be protected from corrosion by covering the material with weather-proof tarps or plastic sheets as directed by the B&R Rigging

Superintendent or G&H.

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4. ERECTION PROCEDURE l

4.1 GENERAL REQUIREMENTS 4.1.1 All rigging shall be in accordance with Construction Procedure 35-1195-CCP-24.

4.1.2 All structural steel framing shall have its structural integrity protected promptly upon erection by adequate bracing to resist horizontal forces, as directed by the B&R Rigging Superintendent.

4.1.3 No load-bearing structural member shall be weakened by cutting, drilling or any other means without approval of the design engineer, or as shown on the approved shop drawings.

4.1.4 Joists hoisted in groups shall not exceed the number for one O..

bay.

4.1.5 Tag lines shall be placed at either each end or Just.one end of a member to prevent swinging and to guide the member during erection and dismounting.

4.1.6 Lugs, gussets, and connecting angles shall be examined before sending up the members to see that connections are not bent or twisted.

4.1.7 Fitting-up bolts, drift pins, peaking, shiming and wedging shall not be used or excecuted to bring improperly fabricated members and parts into place.

4.1.8 All improperly fabricated members shall be brought to the attention of the B&R Civil Engineer in writing by the B&R Rigging Super-intendent or his representative.

4.1.9 Drift pins shall not be driven with such force as to injure adjacent metal.

4.1.10 All shop drawings shall be approved, or approved except as noted, by G&H engineering before erection proceeds.

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35-1195-CCP-22, March 12,1976 O m tSt0N O PAGE 7 of 14 4.2 BOLTED CONNECTIONS i 4. 2'.1 All field connections shall be made with high strength steel I bolts, nuts, and washers (bearing type connections with threads j excluded from the shear planes) unless otherwise noted on the i

engineering drawings, i  !

4.2.2 Bolt heads and nuts shall rest squarely against the metal or m sher.

4.2.3 Where bolts are used on leveled surfaces having slopes greater than 1-in-20 with a plane normal to the bolt axis, beveled washers shall be provided to give full bearing to the head or nut.

4.2.4 Threaded bolts shall be tightened with properly calibrated wrenches or by turn-of-nut method.

4.2.5 When " Turn-of-nut" method is used for bolt tightening, the impact wrench or other pneumatic device does not require calibration.

However, the device shall be of adequate capacity and sufficiently M supplied with air to perform the required tightening of each

. W bolt in approximately ten seconds. When this method is used, the following steps will be followed:

1. All bolts in each joint shall first be brought to a

" snug tight" condition (snug tight is defined as the tightness attained by a few impacts of an impact wrench or the full effort of a man using an ordinary spud wrench.

1 2. All the nuts shall then be match-marked using an approved industrial marker, i.e.: Nissen; which has certified contents.

3. All the bolts in the joint shall then be tightened by the applicable amount of nut rotation specified in
Attachment #1.

4 Tightening shall progress systematically from the most rigid part of the joint to its freest edges, f 5. There shall be no rotation during tightening of the part

{ not turned by the wrench.

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! 6. The end of all bolts shall be marked with the industrial

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35-1195-CCP-22, March 12, 1976 1

O REVISION O PAGE 8 of 14 I

4.2.6 When using the " Calibrated Wrench" method for tightening bolts, f the following steps will be followed:

l l 1. Impact wrench shall be calibrated prior to use each

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morning and afternoon for each adjusted tension setting.

! 2. Impact wrenches shall be recalibrated at any time sig-nificant changes are made in the equipment; i.e., air hose length changed by more than 200 feet or a sig-nificant difference is noted in the condition of the bolts, nuts, or washers.

3. By use of Bolt-Tension Calibrator adjust impact wrench

- until 3 consecutive bolts are tightened to required tension; (See Attachnent #2 for required tension).

4. Use new bolt and nut each time the calibrator is used, i.e., 3 bolts tightened require 3 new bolts and nuts; if a washer is to be used in the structure, then a washer shall also be used when calibrating the impact wrench.

D 5. When several bolts are installed in a single joint, the impact wrench shall be returned to " touch-up" bolts previously tightened to assure that any bolts which may have been loosened by the tightening of subsequent bolts

! are tightened to the prescribed amount.

1 .

l 4.3 FIELD WELDED CONNECTIONS 4.3.1 No welded connections shall be made unless they are shown on the approved shop drawings or approved on a case by case basis by G&H engineering.

4.3.2 Brown & Root shall supply to Gibbs and Hill, certification of welders to be used on erection of structural steel, f 4.3.3 All welded construction shall conform to AISC specification for Design, Fabrication, and Erection of Structural Steel for I

Buildings and AWS D1.1.

4.4 BASE PLATES 5

4.4.1 Base plates and bearing plates shall be grouted in confonnance with G&H specification 2323-SS-9, " Concrete".

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I l 4.4.2 Base plates shall be grouted only after structural steel is F erected and placed with all anchor bolts lightened as released

by the B&R Rigging Superintendent.

4.4.3 A separate B&R construction procedure shall be established for i the grouting of base plates. This procedure shall be approp-l riately approved by the design engineer, i

4.5 TOLERANCES 4.5.1 In general, all steel shall be plumb and level within the .

tolerance of 1:1000.

s 4.6 INSPECTION - CATEGORY I

! 4.6.1 Bolted Connections - the B&R Civil Engineer will visually inspect randomly selected connections for the following:

1. Bolts are the correct length as indicated by at

.; least two threads extending beyond the nut.

2. Correct type bolt is used as indicated by the man-ufacturer's marking on the head.
3. Turning elements are on the correct face; washers j are used when required.
4. Bolts are securely placed in bolt holes.
5. Installation and tightening procedure (observed at

_ random) for adherence to the selected tightening method.

4.6.2 Welded Connections - these shall be inspected by the Brown &

Root, Inc. QA/QC department.

4.7 INSPECTION - NON-CATEGORY I 5 4.7.1 Bolted Connections - the B&R Civil Engineer shall randomly I inspect connections by observing the installation and tight-

'! ening of bolts to determine that the selected tightening method is properly used. This inspection will ordinarily assure that the specified bolt tightness is attained. How-ever, randomly selected connections shall be inspected to the following procedure:

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j 1. The Inspector shall use an inspecting wrench which may j . be either a torque wrench or a power wrench that can be adjusted in accordance with the requirements of 1- Attachment #2.

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j. 2. Three bolts of the same grade, size and condition as

! those under inspection shall be placed individually in 1 '

a calibration device capable of indicating bolt tersion.

The surface under the part to be turned in tightening each bolt shall be like that under the corresponding 3

part in the structure; i.e. , there shall be a washer under the part turned if washers are so used in the i structure or, if no washer is used, the material J abutting'the part turned shall be of the same spec-

. ification as that in the structure.

3. When the inspecting wrench is a torque wrench, each bolt specified in 4.2.6(4) shall be tightened in the calibration j device by any convenient means to the minimum tension -

specified for its size in Attachment #2. The inspecting wrench then shall be applied to the tightened bolt and the a torque necessary to turn the nut or head 5 degrees (approx-w imately 1 inch a 12 inch radius) in the tightening direction shall be determined. The average torque measured in the tests of three bolts shall be taken as the job inspecting torque to be used in the manner specified in Step 5.

4. When the inspecting wrench is a power wrench it shall be adjusted so that it will tighten each bolt specified in 4.2.6(4) to a tension of 7% greater than the required tension specified for its size in Attachment #2. This l setting of wrench shall be taken as the job inspecting j torque to be used in the manner specified in Setp 5.

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'.} 5. Bolts represented by the sample prescribed in 4.2.6(4) which have been tightened in the structure shall be

! inspected by applying, in the tightening direction, the inspecting wrench and its job inspecting torque to 10%

of the bolts, but not less than two bolts, selected at random in each connection. If no nut or bolt head is

, turned by this application of the job inspecting torque,

~ l- the connection shall be accepted as properly tightened, l i If any nut or bolt head is turned by the application of j the job inspection torque, this torque shall be applied i: to all bolts in the connection, and all bolts whose i nut or head is turned by the job inspecting torque r shall be tightened and re-inspected, or alternatively, i

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the fabricator or erector, at his option may re-tighten all of the bolts in the connection and then re-submit the I connection for the specified inspection.

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35-1195-CCP-22 March 12,1976 4

O REVISION 0 PAGE 11 of 14 1

i 4.7.2 The B&R Civil Engineer shall also inspect bolted connections as stated in paragraph 4.6.1, items 1 thru 3 of this procedure.

I 4.7.3 Welded Connections - these shall be inspected by Brown & Root,

!, Inc. Welding Engineering Department to procedure S-52.01-106, i

5. SUPPORTING INFORMATION

5.1 REFERENCES

1. ANSI 45.2.5 - 1974 Supplementary Quality Assurance Requirements for Installation, Inspection, and Testing of Structural Steel During the Construction Phase of Nuclear Power Plants
2. Gibbs and Hill Specification 2323-SS-16A "Non-Category I Structural Steel", and 2323-SS-16B

" Category I Structural Steel"

! 3. Construction Procedure 35-1195-CCP-24, " Rigging"

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O 4. AISC Manual pf Steel Construction - Seventh Edition j ',

5. AWS D1.1
6. G8H Specification 2323-SS-9, " Concrete"
7. B&R Welding Engineering Department Procedure S-52.01-106.

5.2 ATTACHMENTS

1. Nut Rotation Form Snug Tight Condition
2. Minimum Fastener Tension
3. Bolted Connection Inspection Report i .

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ATTACHMENT #1

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NUT ROTATIONa FROM SNUG TIGHT CONDITION Disposition of Outer Faces of Bolted Parts Both faces normal to bolt axis, or one face Both faces sloped not more nonnal to axis and other face sloped not more than 1:20 from normal to bolt than 1:20 (bevel was,her not used) axis (bevel washers not used) 1 Bolt lengthb not exceeding Bolt length bexceeding 8 diameters or 8 diameters or For all length of bolts 8 inches 8 inches '

1/2 turn 2/3 turn 3/4 turn

a. Nut rotation is rotation relative to bolt regardless of the element (nut or bolt) being turned. Tolerance on rotation: 300 over or under.

l For coarse thread heavy hex structural bolts of all sizes and length and heavy hex semi-finished nuti. t

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b. Bolt length is measured from underside of head to extreme end of point.

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35-1195-CCP-22, March 12,1976

l i

O ,

l REVISION O PAGE 13 of 14 ATTACHMENT #2 MINIMUM FASTENER TENSION

!i A325 A490 i

Bolt Size Required 107% Required 107%

1/2 12,000 12,840 15,000 16,050 5/8 19,000 20,330 24,000 25,680

. 3/4 28,000 29,960 35,000 37,450 7/8 39,000 41,730 49,000 52,430 1

1 51.000 54,570 64.000 68,480 1 1/8 56,000 59,920 80,000 85,600 i

1 1/4 71,000 75,970 102,000 109,140 1 3/8 85,000 90,950 121,000 129,470 1 1/2 103,000 110,210 148,000 158,360 h a USE THESE FIGURES i

1 O

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35-1195'-CCP-22, March 12,1976 I~)

'~'

REVISION 0

' PAGE 14 of 14

ATTACHMENT #3 BOLTED CONNECTION INSPECTION REPORT Date l

3 Location t

4 Bolt: ' Job No. No.

. Drawing Connection Size / Insp. Bolts Bolts Wrench Actual Survey Inspector J No. Grade Toroue Conn. Ck'd. No. Torcue Chk'd.

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O 8

s m

<e l

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l Key-Bolt Grade

, 1. A325

2. A490 O 3. Inspector i

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