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1、PracticalThreeDimensionalNonlinearStaticPushoverAnalysis12ByAshrafHabibullah,S.E.,andStephenPyle,S.E.(PublishedinStructureMagazine,Winter,1998)Therecentadventofperformanceforce-deformationcriteriaforhingesCbaseddesignhasbroughttheusedinpushoveranalysis.AsshownBnonlinearstaticpushoveranalysis
2、inFigure1,fivepointslabeledA,B,IOLSCPproceduretotheforefront.PushoverC,D,andEareusedtodefinetheanalysisisastatic,nonlinearforcedeflectionbehaviorofthehingeDEprocedureinwhichthemagnitudeofandthreepointslabeledIO,LSandForcethestructuralloadingisincrementallyCPareusedtodefinetheacceptanceincrea
3、sedinaccordancewithacertaincriteriaforthehinge.(IO,LSandCPApredefinedpattern.WiththeincreasestandforImmediateOccupancy,LifeDeformationinthemagnitudeoftheloading,weakSafetyandCollapsePreventionlinksandfailuremodesoftherespectively.)ThevaluesassignedtoFigure1:Force-DeformationForstructurearefo
4、und.TheloadingiseachofthesepointsvarydependingPushoverHingemonotonicwiththeeffectsoftheonthetypeofmemberaswellascyclicbehaviorandloadreversalsmanyotherparametersdefinedintheforbothtwoandthree-dimensionalbeingestimatedbyusingamodifiedATC-40andFEMA-273documents.buildings.monotonicforce-deforma
5、tioncriteriaandwithdampingapproximations.ThisarticlepresentsthestepsusedinThefollowingstepsareincludedinStaticpushoveranalysisisanattemptperformingapushoveranalysisofathepushoveranalysis.Steps1bythestructuralengineeringsimplethree-dimensionalbuilding.through4discusscreatingtheprofessiontoeva
6、luatetherealSAP2000,astate-of-the-art,general-computermodel,step5runsthestrengthofthestructureanditpurpose,three-dimensionalstructuralanalysis,andsteps6through10promisestobeausefulandeffectiveanalysisprogram,isusedasatoolforreviewthepushoveranalysisresults.toolforperformancebaseddesign.perfo
7、rmingthepushover.TheSAP2000staticpushoveranalysis1.CreatethebasiccomputermodelTheATC-40andFEMA-273capabilities,whicharefully(withoutthepushoverdata)indocumentshavedevelopedmodelingintegratedintotheprogram,allowtheusualmannerasshowninprocedures,acce
