ML20050E006
| ML20050E006 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 03/15/1982 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| References | |
| IEB-80-11, TAC-42918, NUDOCS 8204120460 | |
| Download: ML20050E006 (3) | |
Text
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( Docket File 3 NRL PUR L PDR TERA Docket No. 50-312 A SIC ORB #4 Rdg DEisenhut 0 ELD c;i I s
Mr. J. J. Mattimoe AE0D o
Assistant General Manager and IE 1
Chief Engineer ACRS-10 RSC&yk?O g
Sacramento !!unicipal Utility MPadovan
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- gElg District RIngram 2
af,i6,,'3 6201 S Street CTrihmmell M
4 P. O. Box 15330 SBajwa Sacramento, California 95013.
EB1ackwood H0rnstein
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3
Dear Mr. llattimoe:
GRAY FILE N
c)
SUBJECT:
NASONARY WALL DESIGN - IE 00LLETIll 80-11 On !!ay 8,1980 the Office of Inspect (ion and Enforcement issued IE Dyllotin 80-11. "Masonary Wall Design" to SMUD. The Bulletin identified problems with the structural integrity of concrete masonary walls that had Seismic Category 1 piping attached to them.
In order for us to complete our review of your response to this Bulletin, additional information is needed.
By May 1,1932, please provide us with the information requested in the enclosure to this letter.
If you will not be able to send us the information by the requested date, please contact your ilRC Project Manager as soon as possible. The reporting requirements contained in this letter affect fewer than ten respondents; there-fore, OMB clearance is not required under P.L.96-511.
Sincerely, (DRIGIRL SIcED Br
==my John F. Stolz, Chief l
Operating Reactors Branch #4 i
Division of Licensing
Enclosure:
Request for Additional Infomation I
cc w/ enclosure:
See next page j F204120460 820315 l ~PDR ADOCK 05000312 lO PDR 0 #4:DL
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wne ronu sia no-soi nneu ano OFFICIAL RECORD COPY usceo:--ass-seo
, Sacramento Municipal Utility Rancho Seco, Dockst No. 50-312 District ccw/ enclosure (s):
I) avid S. Kaplan, Secretary and Christopher Ellison, Esq.
General Counsel Dian Grueuich, Esq.
Sacramento ifunicipal Utility California Energy Comission District 1111 Howe Avenue 6201 S Street Sacramento, California 95825 P. O. Box 15830 Sacramento, California 95813 Ms. Eleanor Schwartz California State Office 600 Pennsylvania Avenue, S.E., Rm. 201 Sacramento County Washington, D. C.
20003 Board of Supervisors 827 7th Street, Room 424 Docketing and Service Section Sacramento, California 95814 Office of the Secretary U.S. Nuclear Regulatory Coanission Business and Municipal Department Washington, D. C.
20555 Sacramento City-County Library 828 I Street Resident Inspector / Rancho Seco Sacramento, California 95814 c/o U. S. N. R. C.
14410 Twin Cities Road Herald, CA 95638 i
s Dr. Rir.hard F. Cole Atomic Safety & Licensing Board Panel U.S. Nuclear Regulatory Commission Washington, D. C.
20555
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Regional Radiation Eepresentative Mr. Frederick J. Shon EPA Reaion IX 215 Fremont Street Atomic Safety and Licensing Board San Francisco, California 94111 Panel U.S. Nuclear Regulatory Commission Mr. Robert B. Borsum Washington, D. C.
20555 Babcock & Wilcox Nuclear Power Generation Division Elizabeth S. Bowers, Esq.
Suite 220, 7910 Woodmont Avenue Chainnan, Atomic Safety and Bethesda, Maryland 20814 Licensing Board Panel U.S. Nuclear Regulatory Comission Thomas Baxter, Esq.
Washington, D. C.
20555 Shaw, Pittman, Potts & Trowbridge 1800 M Street, N.W.
Washington, D. C.
20036 Herbert H. Brown, Esq.
Lawrence Coe Lanpher, Esq.
Hill, Christopher and Phillips, P.C.
1900 M Street, N.W.
Atomic Safety and Licensing Board l
Washington, D. C.
20036 Panel U.S. Nuclear Regulatory Commission i
Helen Hubbard Washington, D. C.
20555 P. O. Box 63 Sunol, California 94586
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Sacramento Municipal Utility District Mr. Robert H. Engelken, Regional Administrator Atomic Safety and Licensing Appeal U. S. Nuclear Regulatory Comission, Region V Board Panel 1990 N. California Boulevard, Suite 202 U.S. Nuclear Regulatory Comission Walnut Creek, California 94596 Washington, D. C.
20555 Alan S. Rosenthal, Chairman l
Atomic Safety and Licensing Appeal Board U. S. fluclear Regulatory Comission L
Wasinngton, D. C.
20555 Dr. John H. Buck
(
Atomic Safety and Licensing Appeal Board U. S. Nuclear Re0ulatory Commission Washington, D. C.
20555 b
j Christine ii. Kohl Atomic Safety and Licensing Appeal Board U. S. Nuclear Regulatnry Commission Washington, D. C.
20555 California Department of Health ATTN: Chief. Environmental Radiation Control Unit Radiological Health Section 714 P Street, Room 498 Sacramento, California 95814 1
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Enclosure to ltr. dtd. 3/15/82 MASONARY WALL DESIGN - REQUEST FOR ADDITIONAL INFORMATION 1.
With reference to Section 5.0 of Reference 3 and the analysis of the nuclear service station transformer enclosure walls as one-way slabs, indicate the following:
a.
The boundary conditions used,and provide proper justification for neglecting the flexibility of the bond beam, b.
Using sample calculations, indicate how the effect of higher modes of vibration is included in the aralysis, c.
Indicate how earthquake forces in three directions were considered in the analysis.
2.
With reference to Section 3.0, Attachment A [3], justify the deviations from the relevant FSAR load combinations with regard to factors multiplying the loads.
3.
With respect to Section 5.1.2, Attachment A [3], provide references i justifying the formulae for grout core tension.
4.
With reference to Section 5.2.1, Attachment A [3], justify the increase factor of 1.67 used for shear and bond, tension parallel to the bed joint, and tension normal to the bed joint. The NRC criteria [4] 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 masonary shear.
5.
With reference to Section 6.2, Attachment B [3], provide references justifying the formulae for moments.
6.
With reference to Section 2.3 of Reference 3, explain how the mortar type was determined to be S or M, and indicate whether the properties used in the analysis correspond. to type S or M.
7.
With reference to Table 1 in Reference 3, present the results of the analysis in terms of actual stresses and allowable stresses in psi units.
8.
Provide legible copies of all the concrete masonary wall sketches included in Appendix D of Reference 3.
t I
REFERENCES 1.
IE Bulletin 80-11 Masonry Wall Design NRC, 08-May-81 2.
W. C. Walbridge Letter with attachments to R. H. Engelken, NRC.
Subject:
Rancho Seco Nuclear Generating Station, Unit No.1 -
IE Bulletin 80-11; Notarization of Response Sacramento Municipal Utility District, 16-Jul-80 3.
J. J. Mattimoe Letter with attachments to R. H. Engelken, NRC.
Subject:
Rancho Seco Nuclear Generating Station, Unit No.1 -
Final Response to IE Bulletin 80-11 Sacramento Municipal Utility District, 19-Jan-81 4.
Interim Criteria for Safety-Related Masonry Wall Evaluation NRC, 00-Jul-81 SRP 3.8.4, Appendix A 5.
Uniform Building Code International Conference of Building Officials, 1979 a
6.
Building Code Requireme'nts for Concrete Masonry Structures
-Detroit: American Concrete Institute, 1979 ACI 531-79 and ACI 531-R-79 e
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