ML20137J067

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Rev 2 to Procedure QI-QP-11.0-15, Verification of Base Plates for Grouting
ML20137J067
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 09/20/1983
From: Warner M
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML17198A292 List: ... further results
References
FOIA-85-59 QI-QP-11.0-15, NUDOCS 8512020540
Download: ML20137J067 (5)
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INSTRUCTCN ISSUE TEXAS UTILITIES GENERATING CO.

NUMBER t

DATE PAOI REVISION CPSES l

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!QI-QP-11.0-15 :

2 1 of 5 l

SEP 2 01953 i

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{ PREPARED BY: # -

- -p 7-e*C-d 3 VERIFICATION OF

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APPROVED BY:

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1.0 REFERENCES

I l-A Gibbs and Hill Specification 2323-55-9, " Concrete" 1-B CP-QP-18.0, " Inspection Reports" 1-C CEI-25, " Grouting Pi pe Support Wall and Ceiling Plates" g

l 1-D QI-QP-11.0-6, "pnggipn of Grouting" t

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1-E CP-QP-15.0, "T[gging Sy(temi :,.

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2.0 PURPOSE AND SCOPE L

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g.g The purpoce of this instruction is to provide the cMteria to be-used when performing verification of seismic wall and ceiling mounted component support base plates located in j

Seismic Category I Buildings for grouting in accordance with the requi rements of Reference 1-A.

Floor mounted base plates receiving dry pack material or grout do not fa M

i within the scope of this instruction.

1.

3.0 INSTRUCTION l

1 3.1 BASE PLATE GROUTING AND SHIMMING i

Component support base plates mounted to concrete surfaces I

shall not exceed a 1/16" gap between the base plate and concrete for a minimum of 80% of the base plate area. The gap between the base plate and concrete for a maximum of 20". may exceed 1/16" but at no point shall the gap exceed 1/2".

The gap shall be measured from the periphery of the l

baseplate (See Attachment 1).

l Shim material may consist of steel shim plates or washers of a size necessary to allow proper Hilti bolt torquing without base plate deformation.

The grout fill holes shall be 1/4" diamater and shall not be drilled within 1 inch of a O

concrete anchor.

Additionally, the grout fill holes shall C) be located outside the bolt hole pattern, i

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INSTRUCTION ISSUE REVISION PAGE NUMBER DATE TEXAS UTILITIES GENERATING CO.

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SES QI-QP-11.0-15 2

2 of 5 SEP 2 0 1993 j

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NOTE:

Floor mounted component supports that are not l

flush mounted requi re shimming and grouting and i

shall be verified by Quality Control inspectors per Reference 1-0, 3.2 DOCUMENTATION j

Inspections shall be recorded on an Inspection Report in i

accordance with Reference 1-B.

This Inspection Report may be included as attributes on an Inspection Report generic to a specific hanger inspection instruction (i.e., Class 5 pi pe suppo rts, condui t supports) as outli ned in that i

specific instruction.

l Hangers inspected by the craft as required per Reference 1-C do not require a Bearing Inspection Report (Attachment 2) written for grout placement purposes.

I All unsatisfactory conditions shall be documented on an IR and/or a NCR per Reference 1-B.

IR's shall be processed O

as directed by the QA/QC Supervisor.

A reject tag may be applied to "unsat" items per Reference 1-E.

During Room Turnover activities, QC inspectors may complete I'

a "walkdown" of base plates to veri fy adequate support bearing and document on Attachment 3.

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! INSTRUCTION REVtSICN ISSUE

! TEXAS UTILmES GENERATING CO. l PAGE CPSES

{SEP 2 0 1983 QI-qP-11.0-15, 2

3 of 5 r

ATTACHMENT 1 EXAMPLE: BASE PLATE 10" x 10"

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i Base Plate 100 inches i

807, 1/16" gap I

Cross-hatched area may be up to 5" gap as long as

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t total area does not exceed 20 sq. inches.

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INSTRUCTION ISSUE r

REVISION PAGE O.

NUMBER DATE I TEXAS UTluTIES GENERATING CO.

l CPSES l

01-0P-il.0-15 2

SEP 2 0 1983 4g s I

ATTACHMENT 2

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{ USD DATE PAGE TEXAS UTILITIES GENERATING CO. j NUMBER CPSES SEP 2 0 1983 OI-QP-ll.0-15 2

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ATTACHMENT 3

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ISEISMIC SUPPORTS IN ABOVE REFERENCED AREA SATISFY lI!

I IBEARING REQUIREMENTS PER PARAGDAPW 3.1.

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    • All inspectors performing room verification to sign this IR.

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