ML20137J188

Rev 0 to Procedure QI-QP-11.0-15, Verification of Base Plates for Grouting. Related Info Encl

ML20137J188
Person / Time
Site:	Comanche Peak
Issue date:	11/11/1982
From:	Welch M TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML17198A292	List: IR 05000445/1975010 IR 05000445/1975013 IR 05000445/1977001 IR 05000445/1977002 IR 05000445/1977006 IR 05000445/1978001 IR 05000445/1978007 ML20136E534 ML20136F607 ML20136F614 ML20136F654 ML20136F657 ML20137F450 ML20137F490 ML20137F614 ML20137F642 ML20137F839 ML20137F884 ML20137F989 ML20137G027 ML20137G052 ML20137G077 ML20137G179 ML20137G288 ML20137G337 ML20137G361 ML20137G411 ML20137G433 ML20137G469 ML20137G481 ML20137G492 ML20137G650 ML20137G666 ML20137G734 ML20137G823 ML20137G863 ML20137G901 ML20137G920 ML20137G975 ML20137H013 ML20137H032 ML20137H104 ML20137H117 ML20137H144 ML20137H159 ML20137H181 ML20137H212 ML20137H221 ML20137H233 ML20137H245 ... further results
References
FOIA-85-59 QI-QP-11.0-15, NUDOCS 8512020561
Download: ML20137J188 (4)

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i INSTRUCTION ISSUE TEXAS UT!L! TIES GENERATING CO.

NUMBEp REVISICN CATE P A G c_

CPSES I f4 01-QP-11.0-15 0

NOV 11 1982:

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i PRE?ARED BY:

VERIFICATION OF DATE.

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APPROVED BY: I I-.

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1.0 REFERENCES

1-A Gibbs and Hill Specification 2323-55-9, " Concrete" 1-B CP-QP-18.0, " Inspection Reports" N{,e 5

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1-C CP-QP-16.0, "Nonconformances eg ' b 2.0 PURPOSE AND SCOPE G $

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1 K-The purpose of this instruction is to provide the criteria

((o) to be used when performing verification of seismically, ceiling and wall, mounted component support base plates and all floor mounted component support b'ase plates located in Seismic Category I Buildings for grouting,in accordance with the requirements of Reference 1-A.

3.0 INSTRUCTION 3.1 BASE PLATE GROUTING AND SHIMMING l

Component support base plates mounted to concrete surfaces

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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 i

baseplate (See Attachment 1).

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

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INSTRUCTION ISSUE SiON PAGE NUMBER DATE O!' TEXAS UTILITIES GENERATING CO.

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NOTE:

Floor mounted component supports that are not flush mounted require shimming and grouting.

3.2 EQUIPMENT BASES Air gaps which remain between the equipment base and cured cement grout shall not exceed 1/16 inch.

When gaps under equipment base exceeds the 1/16 inch as stated above, Engineering approval will be obtained on a case by case basis.

NOTE:

Gaps which can be detected by a hollow sound when tapping the base plate shall be rejectable.

3.3 DOCUMENTATION Inspections shall be recorded on an Inspection Report in accordance with Reference 1-B.

3.4 NONCONFORMANCE Nonconformance conditions shall be reported on a NCR per Reference 1-C.

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i fO INSTRUCTION ISSUE REVISION PAGE j TEXAS UTILITIES GENERATING CO.

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ATTACHMENT 1 EXAMPLE: BASE PLATE 10" x 10" I

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Base Plate 100 inches 80% 1/16" gap Cross-hatched area may be up to \\" gap as long as total area does not exceed 20 sq: inches.

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