ML20092C771

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Partially Withheld,Rev 1, Backup Calculations for Dresden Shroud Repair Shroud Stress Rept for Commonwealth Edison Dresden Nuclear Power Station,Units 2 & 3, May 1995
ML20092C771
Person / Time
Site: Dresden  Constellation icon.png
Issue date: 05/12/1995
From: Manan Patel, Shahrivar F, Svarney R
GENERAL ELECTRIC CO.
To:
Shared Package
ML20091F935 List:
References
FOIA-95-188 GENE-771-82-119, GENE-771-82-1194-R01, GENE-771-82-1194-R1, NUDOCS 9509130131
Download: ML20092C771 (25)


Text

GENE-771-82-1194 a

PROPRIETARY R:v.1 GE Nudear Enerav DRP B13-01749 Backup Calculations for Dresden Shroud Repair Shroud Stress Report for Commonwealth Edison Dresden Nuclear Power Station Units 2 and 3 May 1995 Prepared by:

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$_ a-95 F. Shahrivar Date N I[ d(L M 5- /2 - 75~

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GENE-771-82-1194 PROPRIETARY Rev.1 GE Nuclear Enerav DRF B13-01749 PROPRIETARYINFORMATION NOTICE This document contains proprietary information of General Electric Nuclear Energy (GENE) and isfurnished to Commonwealth Edison (Comed) in conpdence solely for the purpose or purposes stated in the transmittal letter. No other use, direct or indirect of the document or the information it contains is authorized.

The recipient shall not publish or otherwise disclose it or the information to others without written consent of GENE, and shall return the document at the request of GENE.

IMPORTANT NOTICE REGARDING THE CONTENTS OF THIS REPORT The only undertakings of GENE respecting information in this document are contained in the contract between Comed and GENE, and nothing contained in this document shall be construed as changing the contract. The use of this information by anyone other than Comed, orfor any purpose other than thatfor which it is intended, is not authorized; and with respect to any unauthorized use, GENE makes no representation or warranty and assumes no liability as to the completeness, accuracy, or usefulness of the information contained in this document.

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GENE-771-82-1194 PROPRIETARY Rev.1 GE Nuclear Enerav DRP B93-01749 1

TABLE OF CONTENTS J

Page i

SECTION 1: GENERAL ASSUMPTIONS AND APPROACH 4

SECTION 2: THE FINITE ELEMENT MODEL 6

i SECTION 3: LOADING CASES & THEIR APPLICABLE LOADS 10 SECTION 4: NORMAL & UPSET SElSMIC 19 SECTION 5: EMERGENCY 1 25 SECTION 6: EMERGENCY 2 & 3 31 SECTION 7: FAULTED 1 & 2 37 SECTION 8: UPSET THERMAL 47 j

j APPENDIX 1: EFFECTIVE STIFFNESS FOR COMBINED SHROUD (SHELL) &

MIDDLE SPRINC 51 APPENDIX 11: CORE-PLATE WEDGE DESIGN 59 APPENDIX lil: ANALYSIS RUN IDENTIFICATION NUMBERS 65 i

APPENDIX IV: H8 WELD ANALYSIS 69 APPENDIX V: SHROUD FLANGE SUPPORTING TIE ROD 75 APPENDlX VI: GAP AT A CRACKED H6 WELD 79 REFERENCES 82 4

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GENE-771-8s4 ;; 4 PROPRIETARY Rev.1 GE NudearEner&y DRF B13-01749 SECTION 7: FAULTED 1 & 2 (Faulted 1 is the limiting case due to its higher loads)

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GENE-771-82-1194 PROPRIETARY R:v.1 DRP B13-01749 GE Num=* Enemv 1

REFERENCES i

1. DRF B13-01749, Section E.1,1995.
2. "Dresden Nuclear Power Station Units 2 & 3 Shroud and Shroud Repair Hardware Analysis for the repair of Welds H1 through H7", Vol. II: Shroud, Stress Report for Commonwealth Edison Co., GENE-771-81-1194, Rev.1, May 1995.

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Commonwealth Edison Company 1

Dresden Nuclear Power Plant Units 2 & 3 Shroud and Shroud Repair Hardware Analysis Shroud Repair Hardware Backup Calculation General Electric Nuclear Company Proprietary Information 4

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