ML20214G706
| ML20214G706 | |
| Person / Time | |
|---|---|
| Issue date: | 04/18/1977 |
| From: | Miner S Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| CON-WNP-0169, CON-WNP-169 NUDOCS 8605220420 | |
| Download: ML20214G706 (17) | |
Text
.. ..
- D M l', . r_ ._1 APR 181977 Docket Hos: 50-322, 50-352 & 50-353, 50-353, 50-)67 50-373 & 50-374, 50-307 & 50-3C3, %-3?7, 50-410 FACILITIES: Shoreham Nuc1 car Power Station Unit No.1, Limerick Generating Station Units f!o.1 and ?!o. '2, !!illiam H.
Zimer *!uclear Power Statien, Unit 1. Cailly Generating Station ';ucicar iso.1, LaSalle Ccunty Station Units flo 1 and No. 2, Su:nuchanna stean Electric Station Units fio.1 and :1o. 2, !!PPSS ? ucicar Project i!o. 2, Nine !!ile Point fluclear Station Unit ;io. 2.
APPLICA!iTS: Lor,g Island Lighting Co., Philadelchia Electric, Cincinnati Cas and Electric Co., 'icrthern Indiana Public Service Co. , Corecnuealth Edi:en, Pornsylvania Pcwar ar.d Light Co., *.!ashincton Public Power Supply Systea and ?!iagara l'ohawk Power Corporation
SUBJECT:
SUCARY _OF MEETINr. l' ELD 0:1 FEMl!ARY ll,1977, TO DISCUSS fIETCOS FOR CC"SI:lI?T. DY:!A"IC LOADS FOR STRUCTV!?AL DESIR:! 0F THE IIP.7. II CC iTAI!;'!E?iT A meeting was held on February 11, 1977, between representativas of the ifark II cuners, the General Electric Co., (GE) and the fiRC Staff. The purpose of the meeting was to discuss with GE and the MarF II owners the prcposal for cusntifyinq the use of square root of the sun of the-square r:ethod (S2SS) for combininc cynamic leads in structural and mechanical ceuonnent desinn. The attendees list and ccpics of sor:.a of the slides given to the attendees are enclosed. Copics of the remainder of the slides are available in ny office.
l For static 1 cads / responses (Enclosure 1) and for dynamic loads / responses I with large differences in frequencies (Enclosure 2) the obvious method
! for combining loads is to sn the absolute sum of the peak loads.
l however, for dynanic loads /resnonses with comparable frequencies GE pro-poses to use the SRSS method (Enclosure 3).
i Currently GE is using a qualitative nethod for selecting when SRSS is to be used. At the necting GE presented a program for developing a method for. cuantifying the limits of the SRSS procedure and to develop practical computational programs to' carry out ecuivalent SRSS oroce-dures for multiole load-responso ccabinations (Enclosure 4). The overall objective is to use probability theory and overall probability' concept for developina a cumulative distribution function plot-(C0F)_
' showing the cocbined amplitude of the dynamic loads vs the probability eya 8605220420 77041s PDR C
TOPRP EMVGENE PDR h
-2 APR 181977 that the combined loads will not be exceeded (Enclosure G). Then develop critoria for selecting when S?.SS will-be used. The proposed program tasks are as fo11cus:
(1) Task 1. Develop computer ;,rograms for combining two or more randondynamicloads(Enclosure 5).
(a) Task 1(A) Develop a Cenputer Progran to conhine two random dynr.mic loads using unifom step time phase shift (Encicsurc 6).
(b) Task 1(P,) Develop a Comouter Program to codine trio or nore randem dynamic loads utfr; l'onte Carlo tcchniques for phase shift '
(Enclosure 7).
(2) Task 2. Select key / typical arcas of ihrh II to cenpare the nothods of load cenbinations (Enclosura 0).
(3) Task 3. Quantify the application liaits of SRSS (Encic:ure 3).
(4) Task 4. Establish Casis for the procedures for the use of SRSS (Enclosure 10).
(5) Task 5. Itave a 2 or 3 day Seminar with !!RC and Industry to present the results of the program (Enclosure 11).
l The overall program as scheduled'(Enclosure 12) shows that the ovners l group expect the procram to be cen;11eted by !'ay,1977. The Task
' schedule and the orcani:stions responsible for performing the tasks are shown on Enclosure 11.
The staff indicated that in order for us to evaluate the program we suggested they supply us with a report v,hich should contain:
(1) Pore detail information on assumotions and judcaents made in developing the methods and computor prograns including details on the computer programs.
(2) Additional examples of combinations using realistic load /
response functions.
l .
l
~3- APR 18 1977 We also indicated we would prefer to have the overall results of the p(rogram Enclosurepresented 11). to us for our review prior to the proposed seminar Sydney itiner, Pro. ject Manager Light !!ater Reactors Dranch flo. 3 Division of Pro. ject t'.anage=cnt DISTRIBUTI0ft:
Central Files SMiner Reading i
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ENCLOSURE 1 .
I. DEFIfflTIGl CF TIE f%lSi A. STATIC LOAD CU"dl;1ATIG1 L
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ENCLOSURE 2 .
SISS 110T EALISTIC IF 1 F VERY DIFFERBIT FRm F2 Ln
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ENCLOSURE 3_
B. IMMIC[D0 GEliMTIGi I .bYMAY - g ]
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ESPGa3 Vtg RIPID.Y #B SE IHMTIG'i, a EsmE FEDEUES fMMW'J F. , _
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ENCLOSURE 4 ,
PREMI (RETTIVE ESTNLI91 OlfflTATIVE TE0011U11MSES FG IMMIC LO.3 CGINATIGl I.' EkiTIF/ /PFUG3IUT/ UillTS CF SRSS EETIID FC3ITlislIC LCD .
@SIfLITIG5. -
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SESS PdXEUTES F03111.TIPLE .
LOAD GEliWIGS.'
Q ON P#K II RAfiS -
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, ENCLOSURE 5 IMK1 IEVE11P GRITER Pf0GFAE FG 01ElilliE l'..D CR IM RAim11MWIIC SIGES WE KRITUES A0 lilITIM.
PHASES AE PAE'tY DISTRIDHED, Ill A FPEEILISTIC PA'ER.'
l}ESE PfGP#E ILL IE LEED FOR PEFRmliG #M.YTICAL EVtluATIGi E 1YPICALIE II CCIMETf5 Ill TIE 2. ,
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ENCLOSURE 6 1A. N D/in A DIMER PPD 3P#1 FOR GElill:5 T.0 RNCm SIMS.
TO FilO OITlATIVE DISTRIHJIIBl RIUIGl (EF) 7 FAXIFA E GiBIIS OSCII.LATl;iG SIGW.S.
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ENCLOSURE 7 -
1B, IEVELT A QMUIER PRC,P#1 TO C&tillE lhiW11C SIGlALS WITil ARBITPARf P.-ASE.
PRERAM LEES A SIluATIGl1EGIIICLE SYi(IliES12E llE FIMluTY L&R OF GB .
, t PROGRlii WIPUT FFai LWil FEEFl1 CSISTS
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FE4 E FLOTS., CI!3 GRITIES lEt tjl
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I ENCLOSURE 8 ,
TISK2 SELECT EY/iYPICfL AEAS OF i%RK II T0 IEfEFilII PREASILIlY LEVEL OF ESFUEES lElliG PPJiPAE .
IBELOPED I!! TASK 1 FOR DIFFEEiff LSD GBliMTIGS.
MFAE ESILTS I!Illi OTiER fEIIIIIB E LGD EDI!MTIGS.
EY /EAS iflLL If!O_lE
.. s PIPliE 02:1Eli a SnleSIGl FCCL S/SIBE) e IFV a'lilIBWJS (5E03 SLSF0E SKIN 5 TCP 0? GUIIE TLD o CEfiAllEifT lif!EPDL Siin! CEES (CRITICAL
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- SEISUC SSE eSRV'LDADS - . . .
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1 ENCLOSURE 9
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It TASK 3 i
- QWRIFY RE IFR.ICATIQi LIlllTS T SRSS AT IEVBP A GliEIA FOR /PR.ICATIGi G SRSS TD GlTICtl SYSTES FOR IUfH TIII -
HISTC. T I 3 IHFGEE art. ira ISIS.
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ENCLOSURE 10 ,
In 11 GLECTIVE IS TO EST/2U9l llE DISIS El TIE P!00ILES FCt TIE USE C: S!iSS !!O SiiSSE ThT.E TFE LEE 7 F.T?)31UTt Thrd K3 02F2L FfELGIUTY CD2IP75.
e B.ED ClIE1TS FT51 TIEC 2 o E! SED Gl TUT;.L E2IT FE3IUTI 4
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ENCtOSURE 11 .
TEK 5 2 at 3 N SSE3 TO iCI #9 II?JSTR/ ,
TO DISQES 52C"iTIU.l.WMD na IES!A.TS G W2 C.EPn FiEa1 FC LC9 i @3]PATIQ5.
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ENCLOSURE 12 LOAD COMBINATION METHODOLOGY ,
OVERALL SCHEDULE PROGRAM INITIATED DECEMBER 1976
~
PRESENT PROGRAM PLAN / SCHEDULE TO NRC FEBRUARY 1977 PRESENT PRELIMINARY RESULTS TO ilRC FEBRUARY 1977 STATUS REVIEW WITH NRC MARCH 1977 5
COMPLETE PROGRAM APRIL 1977 SUBMIT REPORT TO WRC MAY 1977 SEllINAR ON LOAD COMBINATION MAY 1977 MODIFY DFFR TO REFLECT PROGRAM CONCLUSION MAY 1977 P
LHF ;
2/09/77
I ENCLOSURE 13
(
pg i ORMlIZATIGl SCfDULE ESRXElbE/CQEULTliE IRTE
- 1. EVELCP GIMER PREPKB A. B0 TIE HISTORIES E/IEC 1/15/77 B. TilEE OR ICE TIE illSTORIES NSC/E' 2/lW7
- 2. GBEPATE S/fPE ESULTS A. PIPIfE S?l/IEC 3/21/77
- n. EACIDR CG%EliS EliSC 3 (1 / 77 c 011 Tall:EIT StillBC 3/21/77
- 3. EFI;E SFSS kTLICAT101 PfDEDLHE A. FEOLEliCY RULE SdAEC"E 3/2W7
- s. TIE HISTOR/ iUT AVAllELE Sd/E,lEC 3/21/7/
- 4. EST/CLIS!{ FASIS FOR TE LEE OF SfSS A'O SIGSE Pf0EDURES lifluZliE PRIA31LITI TIORI iSC/E 3/28/77 FEC/E,SPl. - -
l 5. PES 5frATIGl T0 tE .
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- ENCLOSURE 14_
ATTENDANCE LIST _
' FEBRUARY 11, 1977 1 NUTECH NRC .
Sydney Miner A. F. Deardorff David Jeng Bob Bosnak Sargent & Lundy Shou-Nien Hou Pei-Ying Chen .
Franz P. Schauer B. A. Erler S. P. Chan P. T. Kuo NSC R. E. Koppe PP&L S. W. Gagant ,
E. M. Mead CGE S&L G. C. Brinkmann
?
R. M. Crawford Stone & Uebster t
GE S. C. Chow R. Klause Lun K. Liu E. Kiss Burns & Roe A. R. Smith P. S. Hsueh L. H. Frauenholz .
F. C. Rally
. C. V. Subramanian ,
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