ML17254A689

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Forwards R562-N4, Reinforced Masonry Wall Evaluation, Evaluation of Control Bldg Reinforced Walls, Documenting Results of Elastic & Inelastic Analyses for Selected Masonry Walls.Commitments Re IE Bulletin 80-11 Complete
ML17254A689
Person / Time
Site: Ginna Constellation icon.png
Issue date: 12/19/1985
From: KOBER R W
ROCHESTER GAS & ELECTRIC CORP.
To: LEAR G E
Office of Nuclear Reactor Regulation
Shared Package
ML17254A690 List:
References
RTR-NUREG-CR-1582, RTR-NUREG-CR-1821 IEB-80-11, NUDOCS 8512310135
Download: ML17254A689 (4)


Text

REQULATO'NFORMATION DISTRIBUTION BTEN'RIDB)ACCESSION NBR:8512310135 DOC.DATE:85/12/19NOTARIZED:

NODOCKET¹FACIL:50-244RobertEmmetQinnaNuclearPlantiUnitiiRochester 005000244AUTH.NANEAUTHORAFFILIATION KOBER>R.M.'ochester Qas5ElectricCorp.RECIP.NANERECIPIENT AFFILIATION LEARAQ.E.PWRProspectDirectorate'

SUBJECT:

ForwardsR562-N4i"Reinforced NasonrgMallEvaluate:one Evaluation ofControlBldgReinforced Walls'"documenting resultsoFelasticLLIinelastic analyses%orselectedmasonrywalls.Commitments reIEBulletin80-11complete.

DISTRIBUTION CODE:AOOIDCOPIESRECEIVED:

LTRQENCLLSIZE:TITLE:ORSubmittal:

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'IIIIIIIII IIIIIIIII AAA~OAIAAuiu"'IIIIIIIIIII 8K:::::ROCHESTER GASANDELECTRICCORPORATION o89EASTAVENUE,ROCHESTER, N.K14649-0001 ROGERW.KOBERVXEPRESIDENT ElECTRIC&STCAMPROOVCTION December19,1985TKLKPIIONK ARK*COOK7I0546.2700DirectorofNuclearReactorRegulation Attention:

t<r.GeorgeE.Lear,ChiefPWRProjectDirectorate No.1U.S.NuclearRegulatory Commission Washington, D.C.20555

Subject:

SeismicmasonryWallAnalysesR.E.GinnaNuclearPowerPlantDocketNo.50-244iDD:PWR'A/BC's~fECHavrrvrrrAD-J.Knight(ltronly)EB(BALLARD)

EICSB(ROSA)PSB(GAMMILL)

RSB(BERLINGER)

FOB(BENAROYA)

.

DearMr.Lear:

InRG8E'sletterofNovember6,1985regarding seismicanalysisofsafety-relatedreinforced masonryblockwallsinthecontrolbuilding, RG&Ecommitted toprovidethefinalanalytical resultsforthesewallsbyDecember20,1985,EnclosedisComputech ReportNo.R562-N4,whichdocuments theresultsoftheelasticandinelastic analysesforselectedmasonryblockwallsatGinnaStation.Theseresultsindicatethattherearesignificant marginsofsafetyforallofthewalls,asdetermined fromtheinelastic analysesoftheselected"worst-case" walls.Themarginsofsafetyvaryfrombetween76%formasonrystrainratiosto600'Xforsteelstrainratios.Thus,itcanbeconcluded thatthereinforced blockwallswillbeabletomaintain, theirsafetyconfiguration following anSSE.TheseismicinputsusedintheseanalyseswerederivedfromtheNRC"SeniorSeismicReviewTeam"report,NUREG-CR/1821, asmodifiedtocorrespond totheGinnasite-specific SSEgroundresponsespectrum, asdefinedinNUREG/CR-1582, "SeismicHazardAnalysis",

anchoredat0.17g.Thisspectrumwasfoundacceptable foruseinassessing safetymarginsforstructures, systemsandcomponents atGinna,asdocumented intheNRCSafetyEvaluation ReportforSEPTopicIII-6,"SeismicDesignConsiderations",

January29,1982.Areportdocumenting theComputech correlation studyforSanOnofreNuclearGenerating StationUnitNo.1(SONGS-1) wallFB5,whichwasdiscussed withtheNRCduringaDecember5,1985meeting,hasalsobeenprepared.

Partsofthatreportareconsidered proprietary toSouthernCalifornia Edison.Thatreportwillbesubmitted assoonastheappropriate application forwithholding andaffidavit areprepared.

Thesubmittal ofthesereportswillconcludeallRG&Eseismiccommitments resulting fromIEBulletin80-11,"MasonryWallDesign".Vrytrulyyours,8512310135 851219PDR*DOGIE000002448PDR0~0/Ro+W.Kober I~ad