ML20141E214

Forwards, AP600 Nuclear Island Confirmatory Analysis of Soil Structure Interaction Effects, Rept

ML20141E214
Person / Time
Site:	05200003
Issue date:	05/16/1997
From:	Bagchi G NRC (Affiliation Not Assigned)
To:	Quay T NRC (Affiliation Not Assigned)
Shared Package
ML20141E218	List: ML20141E214 ML20141E299
References
NUDOCS 9705200364
Download: ML20141E214 (2)

Text

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May 16, 1997 MEMORANDUM T0: Theodore R. Quay, Director

[2 -3 Standardization Project Directorate Division of Reactor Program Management FROM: Goutam Bagchi, Chief Original signed by G. Bagchi Civil Engineering and Geosciences Branch Division of Engineering

SUBJECT:

S0IL-STRUCTURE INTERACTION ANALYSIS OF AP600 NUCLEAR ISLAND STRUCTURES Attached is a report titled, "AP600 Nuclear Island Confirmatory Analysis of Soil-Structure Interaction Effects." There are two items of relevance in the attached report that were discussed with Westinghouse during a conferenu call on May 14, 1997. These two items are as follows:

1. Inconsistencies in section properties of the seismic model of nuclear island structures (see Page 4 of the rer'rt).

2. Sensitivity of structural responses to specific frequencies (see the 3rd bullet on Page 11, and Figures 5 and 8 of this report).

Please forward this report to Westinghouse.

Attachment:

As stated cc: D. Jackso-l Distribution:

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Ta receive a copy of this docunent, indicate in the box: "C" = Copy, w/o attachment; "E" = Copy w/ attachment; "N" = No Copy 0FC ECGB:AD> E ECGB:DE C EC d d NAME TCh P0 DELL h. d - E[AGCb DATE 5//(,/97 5/ / 4 /97 5/ /b /97 l f

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curo y *, UNITED STATES NUCLEAR REGULATORY COMMISSION I WASHINGTON, D.C. 30666-0001 May 16, 1997 MEMORANDUM TO: Theodore R. Quay, Director Standardization Project Directorate Division of Reactor Progr Manageyent

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FROM: Goutam Bagchi, Chief Civil Engineerin Geos ences Branch Division of En neering

SUBJECT:

SOIL-STRUCTURE INTERACTION ANALYSIS OF AP600 NUCLEAR ISLAND STRUCTURES Attached is a report titled, "AP600 Nuclear Island Confirmatory Analysis of Soil-Structure Interaction Effects." There are two items of relevance in the attached report that were discussed with Westinghouse during a conference call on May 14, 1997. These two items are as follows:

1. Inconsistenr.ies in section properties of the seismic model of nuclear island structures (see Page 4 of the report).

2. Sensitivity of structural responses to specific frequencies (see the 3rd bullet on Page 11, and Figures 5 and 8 of this report).

Please fceward this report to Westinghouse.

Attachment:

As stated cc: D. Jackson l