ML20214G766
| ML20214G766 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 08/06/1975 |
| From: | Maccary R Office of Nuclear Reactor Regulation |
| To: | Deyoung R Office of Nuclear Reactor Regulation |
| References | |
| CON-WNP-0030, CON-WNP-30 NUDOCS 8605220485 | |
| Download: ML20214G766 (2) | |
Text
O Docket No. 50-397 gus 6 1975 R. C. DeYoung, Assistant Director for Light Water Reactors, Group 1 Division of Technical Review J WPPSS NUCLEAR PROJECT #2 (FORMERLY HANFORD #2) 1.
TECHNICAL REPORT (WPPSS 74-2-R2) " SACRIFICIAL SHIELD WALL" DATED MARCH 1974 2.
SUPPLEMENTAL REPORT (WPPSS 74-2-R2-A) DATED FEBRUARY 11, 1975 3.
RESPONSE TO QUESTIONS, DATED JUNE 26, 1975 STRUCTURAL EVALUATION (TAR-908 CONTINUATION)
Plant Name: WPPSS #2 Docket No.: 50-397 Licensing State: Post -CP Review Branch and Project Leader Requesting Assistance: LWR-1-3; I. Villaiva Requested CompJetion Date: August 7,1975 Technical Review Branches Involved: Structural Engineering Containment Systems Mechanical Engineering Description of Request: Memo dated July 18,1975 (LWR 1-3; TAR 908 Continuation)
Review Status: Complete for Base of Wali In accordance with your request the Structural Engineering Branch, Division of Technical Review, has reviewed and evaluated structural sections of the applicant's report: " Sacrificial Shield Wall" (WPPSS 74-2-R2) dated March 1974, and the upplicant's answers to SEB questions contained in documents 2 and 3 cited above.
The applicant's information covers only the design of the base of the sacrificial sheild wall. An additional report covering the part of the wall above the base and the openings in the wall will be filed on or about August 15, 1975.
The applicant's design criteria and the design methods are in accord-ance with SEB document "B" (June 1973) and document "A" (June 1974).
In addition to the load factors indicated in these documents, the applicant has used :n uncertainty factor of 1.4 which was applied to the computer pnessure computation results.
The SEB has reviewed the design criteria and the design methods used by the applicant. The criteria used in the design and analysis of this structure to account for anticipated loadings and postulated con-ditions that may be imposed upon the structure during service lifetime or.ic s e.
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are in conforwence with established criteria, and with codes, standards, and specifications acceptable to the staff.
The use of these criteria as defined by applicable codes, stand-ards, and specifications; the loads and loading combinations and the design and analysis procedure, provide reasonable assurance that, in the avant of earthquakes and various postulated accidents occurring within the containment, the structure will withstand the specified design conditiens without impairment of structural in-tegrity or the performance of required safety functions. Conform-ance wf th these criteria constitutes an acceptable basis for satisfying in part the requittments of General Design Criteria 2 and 4.
R. R. Maccary, Assistant Director for Engineering Division of Technical Review cc:
A. Giambusso W. Mcdonald R. Heineman R. Klecker M. Kehnemuyi J. Knight-S. Varga D. Eisenhut R. Tedesco L. Shao G. Lainas A. Gluckmann l
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