ML13317B094
| ML13317B094 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 04/15/1982 |
| From: | Baskin K Southern California Edison Co |
| To: | Crutchfield D Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML13310A235 | List: |
| References | |
| TASK-03-06, TASK-3-6, TASK-RR NUDOCS 8204200329 | |
| Download: ML13317B094 (10) | |
Text
Southern California Edison Company P. 0. BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD, CALIFORNIA 91770 K. P. BASKIN TELEPHONE MANAGER OF NUCLEAR ENGINEERING, April 15, 1982 (213) 572-1401 SAFETY, AND LICENSING Director, Office of Nuclear Reactor Regulation Attention:
D. M. Crutchfield, Chief Operating Reactors Branch No. 5 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C.
20555 Gentlemen:
Subject:
Docket No. 50-206 SEP Topic 111-6 Seismic Design Considerations San Onofre Nuclear Generating Station Unit 1 By letter dated February 24, 1982, we provided a report supporting our conclusion that the 0.67g Housner response spectrum is an appropriately conservative spectrum for the San Onofre site.
By letter dated April 5, 1982, the NRC requested additional information in support of this conclusion.
In response to that letter, enclosed are the following reports:
- 1. Development of Instrumental Response Spectra for the San Onofre Site, Woodward-Clyde Consultants, April 12, 1982.
- 2. Estimation of Peak Horizontal Ground Acceleration at San Onofre Nuclear Generating Station, TERA Corporation, February 19, 1982.
- 3. A Comparative Analysis of the Ground Motion Models of TERA Corporation and the U.S. Geological Survey, TERA Corporation, February 19, 1982.
In addition, finalized comparisons between the vertical and horizontal Housner response spectra and various spectra estimates discussed in our February 24 letter are also enclosed.
If you have any questions on any of this information, please let us know.
Very truly yours, Ao-1 Enclosure 7
8204200329 820415 PDR ADOCK 05000206 P
Comparisons Between Various Spectra Estimates and the 2/3g Housner Response Spectra Figure 1 84th Percentile Instrumental Spectra, 2% Damping Figure 2 84th Percentile Instrumental Spectra, 10% Damping Figure 3 TERA-DELTA Horizontal Spectra, 2% Damping Figure 4 TERA-DELTA Horizontal Spectra, 10% Damping Figure 5 TERA-DELTA Vertical Spectra, 2% Damping Figure 6 TERA-DELTA Vertical Spectra, 10% Damping Figure 7 Imperial Valley 1979 Horizontal Spectra, 2% and 10% Damping Figure 8 Imperial Valley 1979 Vertical Spectra, 2% and 10% Damping
E 5 s e 11 o 2 /3c H nu sne r S
R~ary\\-, Specruim 1.1h
_f IT 0-4 Z 0.2 Damping =0.02 0
0.02 0.05 0.1 0.2 0.5 1.0 Period (sec:,
E.XPLAN AT ION The~ b-V ased on instrumrrental fom af Hosrser resalysiyk spectrum Propc UnNo.Secr 4142 NS fi1Secr Ratio of SONGS S4th Percemile Instrumental iur mbow ckoStra to Reanalysis Spectra foir 2% Dampintg iue1
1.2 H
Based on 2.'3c Housrne.
REana~vs!s
- .eC-um I
C E
itI0i I
1! 1 i 1 002 0.05 il 01 0.2l 0.5
- 1.
Period (sec E XPLAN ATION The rarnge tbiiie.
mn insTrumeflta!
L2~form of Hojsrer reanialysis spectrum Proieci No.
SONGS Unit 1 Spectra Ratio of SONGS 84th Percentile Instrumental Spectra to Reanalysis Spectra for 10% Damping Fgr
IA S1.2 CL <
SW SUPPLEMENT I + Ml X 1.5 Uj z
0:z0.8 0.40 2 % AMPING]
0.02 0OAS 0.1 02 0.5 Period (sac)
SONS Uit Secta RTIOOFTERA-DELTA HORIZONTAL INSTRUMENTAL Figure Project~~PETR TO 1
SNG nt REANALYSIS SPECTRA FOR 2% DAPING
1.8 I5 j
I' ll I
I'Ill IA 12 SUPPLEMENT I X 1.5 LC<
SUPPLEMENTS 1+ 1 X 1.5
< w Ir 0.2 Oi z Ao 01 0.4 10% DAMPING 0.2 L Itttl A
I 1
0.02 AS 04 05 Period (sec)
Project No.
SONGS Unit I Spectra RATIO OF TERA-DELTA HORIZONTAL INSTRUMENTAL Figure SPECTRA TO REANALYSIS SPECTRA FOR 10% DAMPING]
4 4
z 2
O
~L SUPPLEMNTSNT +IX X
.5 2
V2 C
m SUPSUPPLEMENT IMXX115 0.4 2% DAMPING 97I.I1 I
l I
I I
t 0.02 OAS 0.1 e.2 0.s Period (sac)
Proje No.
SONGS Unit I Spectra RATIO OF TERA-DELTA VERTICAL INSTRUMENTAL TO Fgr REANALYSIS SPECTRA FOR 2%
DAMPING f
Pr pct ~
S N G S Uni I p e ct a R TIO OF ERA DEL A V RTIC L I STR MEN AL O
F gu5
IA U
WO L
04 SUPPLEMENT I X 1.5 CA 10%2 0.
.0Perod (we)
Proec No.
SONGS unit I Specta RATO OF TERAS-DELTA VERTICAL INSTRUMENTAL
.SPEC:TRA TO REANALYSIS SPECTRA FOR 10%
DAMPING Fgr 0.6 0.4STMf:N i
SECRATO EAALSISSPCTA FOR 10% DAPN 6Fgr
E1.2 211 2e Da-pm 0.02
'N Dampin~g =0. 10 C's cv cc 0
~0.4
~0.2 0.02 0.05 0.1 0.2 0.5 Period (sec) 1 1 Ratio of IV79 Horizorta! Spectra st 8 km to 0.67g IFigur
____H__
osner Rearalysis Spectra for 2%. and 10P% Damping 7
1.4 Dampinc 0.02 Dampng 0.10 1.2 E
/
/
C Z
0.2 E
[/
\\
o I
-~
1.0 00
.5010.2 O i l~~
/i Period (sec)
SNG T Spetr Ratio of IV79 VerticaS at 8 km to 0.44g SHousner Reanalysis Spectra for 2% and 10% Damping
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