ML16341D496
| ML16341D496 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 11/18/1985 |
| From: | Schierling H Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| TAC-60090, NUDOCS 8511220407 | |
| Download: ML16341D496 (14) | |
Text
SOY 18 1985 Docket Nos.:
50-275 and 50-323 LICENSEE:
Pacific Gas and Electric Company FACILITY: Diablo Canyon Nuclear Power Plant Units I and 2
SUBJECT:
MFETING
SUMMARY
- MASONRY WALLS On November 5,
1985 members of the NRC staff and its consultants from the Franklin Research Center and Drexel University met with representatives from Pacific Gas and Electric Company (PGIIE, the licensee) and Bechtel to discuss the PGIIE appr oach to justify the use of the energy-balance technique to qualify some of the masonry walls at Diablo Canyon Units 1 and 2.
A list of attendees is provided in Enclosure I.
(The Diablo Canyon Unit 1 and Unit 2 licenses each contain a license condition regarding the matter).
The licensee outlined its approach of using San Onofre test data to demonstrate the convervatism of the energy-balance technique as applied to Diablo Canyon
'Units 1 and 2.
The approach consists of predicting the response values for the San Onofre test panels by using the energy-balance technique and correlating them with measured test results.
The licensee also made available at the meeting a draft report for examination by the staff and its consultants during the meeting.
Both the draft report and the PGIIE presentation contained proprietary information.
Based on its cur sory audit of the PGIEE draft report and on the information provided in the PGItE presentation, the staff found the PGIIE approach to be promising.
However, the staff indicated a need for a more thorough review of the draft report in order to provide further comments to be addressed in the final report.
The licensee was requested to submit the draft report for staff review, including both proprietary and non-proprietary versions.
PGImE committed to submit the draft report in the near future.
Based on the licensee's presentation, the staff requested that additional information as listed in Enclosure 2 be included in the final report.
The staff stated that additional comments or need for additional information, if any, will be identified at the completion of its review of the draft report in about one month.
Origina! zifize< >,
Hana 8chier!!gg
~'ans Schier ling, Project Manager Licensing Branch No.
3 Division of Licensing
Enclosures:
as stated cc:
See next page
- Previously curred on by:
DL:LBg3 DE:SGEB
- HSchi erl ing
- NChokshi ll/I5/85 11/] 5/85 DL:LB83 GWKni+
n ll/Q/85 8511220407 8511'18 PDR ADOCK 05000275 P
Pl
+H
~
~ W"
~
=)I<<
III
~ H a'I Ir'
~ >>I'ls. l)>>'f "~ /f<<I ll,"
.w, sw r
~
C' wall
'IIIC
'l
~ s ~ l P
l H 'tll
~ WH C)i<<)C
",<<C) I ~
sw f,r -) ()
I' wCw '
H I)
C)C)';,
ll Cl C)C'I" p),>> <<):
rh 'C.:w
~
IC r
<<1 I P
ssr 1
<< ~ W j CCIi ~
It s ~
l
'CSHC gr s CC WCl*
"Psl lf f>>" )r
) '
~
~
)Clf)')
'C,C I)
~ I);)C
~Ill lw
<<C<<Cff)s) lr)
>>>>r I ~
rllll'I Il' l
(C
,ry r
"k'l)C
~ >>
') Cll '>>
Cw
~"C
,, l I\\ I I II r) CC 1>>
)Hsw l) "rwl
~
>>w')Cl ll CC)
~ ~ I IC)>> l)sl
~ ff s
ysr'>>
l I
l
) ~ r I) i<>
rw
~
~ ~
~
1>>
Hs ~
r'W C)>>H C
'w
'll I
lw C) [
Cl
~H'I>>
H lit~ ~
)
~ tf H
'C<<C l
) HICC' rl" rip s ) C II r
C
~
w C
~
'C'l I II sr P
I 'I
~ t
~ s
~
~
ll A
l wl sit >>') 'll
'" l
') I'I')')t'l4 0
w If
)
s H'I",'rw>>s" f s Cl
~ as,'1
>>if I
tq "
tl(
~,
H Il lw wll rl ')C) C C
'+>>
'I" i>>t C'>>
) w'(1 s,w>>SI'
~ l I,
- Iw lrtw+
~
w ~
)I')CI ) '>>
s
.I I
r s,
il cwt
.l)
'<<1)
~
~ w"
~
w I'" >>
H 'I ~
I'
Mr. J.
D. Shiffer Pacific Gas and Electric Company Diablo Canyon CC:
Philip A. Crane, Jr.,
Esq.
Pacific Gas 5 Electric Company Post Office Box 7442 San Francisco, California 94120 Mr. Malcolm H. Furbush Vice President - General Counsel Pacific Gas 5 Electric Company Post Office Box 7442 San Francisco, Cali fornia 94120 Janice E. Kerr, Esq.
California Public Utilities Commission 350 McAllister Street San Francisco, California 94102 Mr. Frederick Eissler, President Scenic Shoreline Preservation Conference, Inc.
4623 More Mesa Drive Santa
- Barbara, Cali fornia 93105 Ms. Elizabeth Apfelberg 1415 Cozadero San Luis Obispo, California 93401 Mr. Gordon A. Silver Ms. Sandra A. Silver 1760 Alisal Street San Luis Obispo, California 93401 Harry M. Willis, Esq.
Seymour 5 Willis 601 California Street, Suite 2100 San Francisco, California 94108 Mr. Richard Hubbard MHB Technical Associates Suite K
1725 Hamilton Avenue San Jose, California 95125 Mr. John Marrs, Managing Editor San Luis Obis o Count Tele ram Tribune o nson venue P. 0.
Box 112 San Luis Obispo, California 93406 Resident Inspector/Diablo Canyon NPS c/o US Nuclear Regulatory Commission P. 0.
Box 369 Avila Beach, California 93424 Ms.
Raye Fleming 1920 Mattie Road Shell Beach, California 93440 Joel
- Reynolds, Esq.
John R. Phillips, Esq.
Center for Law in the Public Interest 10951 West Pico Boulevard Third Floor Los Angeles, California 90064 Mr. Dick Blankenburq Editor 8 Co-Publisher South County Publishing Company P. 0.
Box 460 Arroyo Grande, California 93420 Bruce Norton, Esq.
Norton, Burke, Berry 5 French, P.C.
202 E. Osborn Road P. 0. Box 10569 Phoenix, Arizona 85064 Mr. W. C. Gangloff Westinghouse Electric Corporation P. 0.
Box 355 Pittsburgh, Pennsylvania 15230 David F. Fleischaker, Esq.
P. 0.
Box 1178 Oklahoma City, Oklahoma 73101
~
g
~
Paci fic Gas 5 Electri c Company Diablo Canyon CC:
Arthur C. Gehr, Esq.
Snell E Wilmer 3100 Valley Center Phoenix, Arizona 85073 Mr. Leland M. Gustafson, Manager Federal Relations Pacific Gas 5 Electric Company 1726 M Street, N.W.
Suite 1100 Washington, DC 20036-4502 Regional Administrator, Region V
U.S. Nuclear Regulatory Commission 1450 Maria Lane Suite 210 Walnut Creek, California 94596 Michael J. Strumwasser, Esq.
Special Counsel to the Attorney General State of California 3580 Wilshire Boulevard, Suite 800 Los Angeles, California 90010 Mr. Tom Harris Sacramento Bee 21st and 0 Streets Sacramento, Cali fornia 95814 Mr. H. Daniel Nix Ca 1 ifornia Energy Comm iss ion 1516 9th Street, MS 18 Sacramento, California 95814 Lewis Shollenberger, Esq.
US Nuclear Regulatory Commission Region V
1450 Maria Lane Suite 210 Walnut Creek, Cali fornia 94596 Mr. Thomas Devine Government Accountability Project Institute for Policy Studies 1901 gue Street, NW Washington, DC 20009
Enclosure 1
LIST OF ATTENDEES H. Schierling P. T.
Kuo N. C. Chokshi V. Con A. Hamid J.
HcCall S. Bhattacherya C. Coffer T.
W. Libbs W. White W. Tseng AFFILIATION NRC/DL NRC/DE NRC/DE Franklin Research Center Drexel University PGSE PGSE PGSE PGSE Bechtel Bechtel
I
Enclosure 2
NRC RE UEST FOR ADDITIONAL INFORMATION I.
Provide additional data for hysterisis loops (i.e.,
a few more "snap shots" of hysterisis loop for the pin-pin condition) 2.
Discuss the correlation and conservatism in the energy-balance approach in the light of differences Nthe assumed hysterisis loop in the analytical approach and the test data.
3.
Consider bottom hinge effects in the correlation study by calculating the maximum rebar ductility for the bottom hinge.
4.
Provide quantitative arguments to substantiate the similarity between SONGS-1 and Diablo Canyon walls.
~ 5.
Discuss the applicability of the plate action in the energy-balance technique.
6.
Provide the clarification for five walls where Em=1000fc'as used (higher modulus based on the grout strength).
7.
Discuss the shear transfer capacity for the walls where clip angles do not extend to the block but may extend to the dry pack.
~ s II
8.
Provide qualitative discussion on margins of the masonry walls.
9.
Calculate the yield displacement from the SONGS tests and correlate against energy-balance technique prediction.
- 10. Provide a list of the displacement ductilities for the Oiablo Canyon walls to demonstrate that they are less than 3.0.
k t
HOY I8 1985 MEETING
SUMMARY
DISTRIBUTION Docket-No (.s-)'
5O-27~/323 NRC PDR Local PDR NSIC PRC System LB3 Reading
- Attorney, OELD GMKnighton Project Manager HSchierlin JLee NRC PARTICIPANTS H. Schierling P. T.
Kuo N.
C. Chokshi bcc:
Applicant 8 Service List
~
~
~j r,