ML20052B445
| ML20052B445 | |
| Person / Time | |
|---|---|
| Site: | FitzPatrick  |
| Issue date: | 04/19/1982 |
| From: | Vassallo D Office of Nuclear Reactor Regulation |
| To: | Latoya Sinclair POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK |
| References | |
| IEB-80-11, NUDOCS 8204300428 | |
| Download: ML20052B445 (3) | |
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DISTRIBUTION:
ORB #2 Rdg Docket File SNorris NRCPDR PPolk L PDR 0 ELD APR 191982 AE0D Docket No. 50-333 IE ACRS-10 Gray File Mr. Leroy W. Sinclair President and Chief Operstin, Officer Power Authority of the State of New York 10 Columbus Circle New York, New York 10019
Dear Mr. Sinclair:
Re: James A. FitzPatrick Nuclear Power Plant We have revimved your responses to IE Bulletin 80-11 " Masonry Wall Design" and find that we need additional information to complete the review. You are requested to provide the additional information, listed in the enclosure, within 45 days of receipt of this letter.
The information requested in this letter affects fewer than ten respondents; therefore, OMB clearance is not required under P. L.96-511.
Sincerely, Dridralsined by p g,,......
Domenic B. Vassallo, Chief Operating Reactors Branch #2 Division of Licensing
Enclosure:
Request for Additional Information cc w/ enclosure:
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Mr. Leroy W. Sinclair r Charles M. Pratt Mr. George-M. Wilverding, Chainnan Assistant General Counsel Safety Review Committee Power. Authority o'f the State
. Power Authority of the State of New. York of New York 10 Columbus Circle 10 Columbus Circle New York, New York 10019 New York, New York 10019 Mr. J. Phillip Bayne Mr. M. C. Cosgrove Senior Vice President -
Quality Assurance Superintendent Nuclear Generation James A. FitzPatrick Nuclear Power Authority of the State '
. Power Plant of New York P.O. Box 41 10 Columbus Circle Lycoming, New York,13093 New York, New York 10019 Ronald C. Haynes Mr. Corbin A. McNeill.Jr.
Regional Administrator, Region I Resident Manager U.S. Nuclear Regulatory Conmission.
James A. FitzPatrick Nuclear 631 Park Avenue Power Plant King of Prussia, PA 19406 P. O. Box 41 Lycoming, New York 13093 Resident Inspector Director, Technical Development c/o U.S. NRC Programs P. O. Box 136 State of New York Energy Office Lycoming, New York 13093 Agency Building 2 Empire State Plaza Albany, New York 12223 Mr. Leon Guaquil Manager - Nuclear Licensing Power Authority of the State of New York 10 Columbus Circle l
State University College at Oswego Penfield Library - Documents Oswego, New York 13126 Mr. A. Klausmann l
i Vice President-Quality Assurance Power Authority of the State of New York 10 Columbus Circle New York, New York 10019
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Enclosura REQUEST FOR ADDITIONAL INFORMATION.
JAMES A. FITZPATRICK NUCLEAR POWER PLANT DOCKET NO. 50-333 l.
Provide the boundary conditions and modeling techniques used for the reevaluatio'n of masonry walls at the FitzPatrick plant and indicate
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j how the potential for block pull-out was considered.
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Indicate how earthquake forces in th'ree directions ~ we're considered in the seis.mic analysis of the walls and how the equipment'. loads were accounted for in the seismic analysis.
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Provide a, brief description and a sample-calculation to show the
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analytical approach used for single-wythe and multiple-wythe: walls.
4.
With reference to Section 6c, Enclosure 1, Reference 2, justify the
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proposed 30% incr' ease in allowable stresses for load combinations including OBE* loads, for which no increase is allowed in the SEB criteria [5].
5.
With reference to Section 6c, Enclosure 1, Reference 2, justify the increase factor 1.67 applied to allowable stresses for extreme environmental loads (e.g., DBE). The SEB criteria [5] allow increase factors of only 1.5 for tension parallel to the bed joint and shear in the reinforcement and 1.3 for tension normal to the bed joint and masonry shear.
6.
Describe the methodology of any alternative acceptance criteria (i.e., not based on working stress) used.to qualify masonry walls.
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It is the NRC's position at present that the arching theory should not be used in the absence of conclusive evidence of its applicability to masonry structures in nuclear power plant's.
7.
Provide sample calculations 4to indicate how the effects of higher I
modes of vibration are secounted for in the masonry wall analysis.
8.
Provide details of proposed wall modifications with sketches, and indicate, using sample calculations, how these modifications will correct the walls deficiencies.
9.
Provide the status of the proposed wall modifications.
10.
Provide the results of the wall analysis for'the walls that do not qualify under the working stress criteria and present the results. of the analysis in terms of actual stresses and allowable stresses.
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