ML20040D780

180-Day Rept in Response to IE Bulletin 80-11 for Quad Cities Nuclear Power Station,Units 1 & 2.

ML20040D780
Person / Time
Site:	Dresden, Quad Cities, 05000000
Issue date:	01/15/1982
From:	BECHTEL GROUP, INC.
To:
Shared Package
ML20040D767	List: ML20040D766 ML20040D776 ML20040D780
References
IEB-80-11, NUDOCS 8202020245
Download: ML20040D780 (7)

Text

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180-DAY REPORT IN RESPONSE TO IE BULLETIN 80-11 FOR QUAD CITIES NUCLEAR POWER STATION UNITS 1 AND 2 COMMONWEALTH EDISON COMPANY DOCKET NUMBERS 50-254 AND 50-265 i

PREPARED BY: Bechtel Power Corporation

, Report Date: January 15, 1982 Revision 2 8202020245 820127 ~~

PDR G

ADOCK 08000237 PDR

4.7 MASONRY WALL TESTING PROGRAM A sampling and testing program is in progress and intends to accomplish the following:

4.7.1 Verify the type and strength of block used for the walls which do not appear on any design drawings.

4.7.2 Justify the assumed stresses used for the mortar of solid masonry walls.

4.7.3 Determine the allowable stress which can be transmitted across a mortared collar joint.

4.7.4 Justify the use of inspected allowable stresses.

5.0 RESULTS OF MASONRY WALL EVALUATION Table 3 lists the results of the masonry wall reevaluation. The criteria used to justify the wall'ss acceptance or mode in which it does not meet criteria are identified.

5.1

SUMMARY

The following summarizes the results of the reevaluation of 82 safety-related masonry walls:

5.1.1 Total number of walls meeting the acceptance criteria:

52 5.1.2 Total number of walls which do not meet the acceptance criteria: 30

6.0 REFERENCES

6.1 Building Code Requirements for Concrete Masonry Structures, y

ACI 531-79, American Concrete Institute, Detroit, Michigan, 1979 6.2 USNRC IE Bulletin 80-11, dated May 8, 1980 i

6.3 Final Safety Analysis Report (FSAR) for the Quad Cities Nuclear Power Station Units 1 and 2

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