基于ABAQUS的混凝土剪力墙滞回性能的模拟_范浩

[e-mail]。ABAQUS111214300142100084ABAQUS———CDP。7。CDP。ABAQUSTU375O245A1002-848X2013S2-0549-06SimulationofthehystereticperformanceoftheconcreteshearwallinABAQUSFanHao1WenSiqing1DongWeiguo1ShiGang21CITICGeneralInstituteofArchitecturalDesignandＲesearchCo．Ltd．Wuhan430014China2KeyLaboratoryofCivilEngineeringSafetyandDurabilityofChinaEducationMinistryDepartmentofCivilEngineeringTsinghuaUniversityBeijing100084ChinaAbstractABAQUSisverypowerfultosolvenonlinearproblemsthereforeitisoftenusedtoanalysistheperformanceofthestructurebuildingunderrareoccurrenceearthquakewherethekeymembertoresistseismiceffecti．e．concreteshearwallissimulatedbythebuilt-inconstitutivemodelnamedconcretedamagedplasticityCDPmodel．Howeverresearchontheaccuracyandreliabilityofthismodelhasrarelybeenreported．InthispapermethodstodeterminetheexactvalueofparametersinCDPmodelwerediscussed．Furtherthecyclicperformanceof7piecesofconcreteshearwallwassimulatedanditshowedthatthesimulationresultsagreedwellwiththoseofthecorrespondingexperiment．ThispaperprovesthatthemethodsapprovedbytheauthortosetthevaluesoftheparametersinCDPmodelcouldreproducethepincheffectoftheconcreteshearwallundercyclicloadinganditcanbeusedtoanalysistheseismicperformanceofthewholebuildingstructure．KeywordsconcreteshearwallhystereticperformancefiniteelementanalysisABAQUSconcretedamagedplasticity0ABAQUSABAQUS1-5。ABAQUSConcreteDamagedPlasticityCDPABAQUS。CDP6CDP。7CDP、。8CDP-。9CDP。CDPCDPCDP。1CDPCDP105502013*Materialname=MaterialName*ElasticE0υ*Densityρ*DampingAlpha=αＲBeta=βＲ*ConcreteDamagedPlasticityψ*ConcreteCompressionHardeningσcE0．0σcεin*ConcreteCompressionDamage0．00．0dcεin*ConcreteTensionStiffeningType=Strainft0．0σtεck*ConcreteTensionDamageType=Strain0．00．0dtεck*Material*Elastic*Density*Dampingξi=αＲ/2wi+βＲwi/2*ConcreteDamagedPlasticityCDPψ*ConcreteCompressionHardening1aεin=εc－σc/E010σc、εcE0-、*ConcreteCompressionDamageεcσcEcrdc=1－Ecr/E0*ConcreteTensionStiffeningft1bεck=εt－σt/E0σt、εt10*ConcreteTensionDamage1bεtσtEtrdt=1－Etr/E0。7910。aCDPbCDP1CDP102----。11-1aMcKenna122-、Hognestad13。14JLQ-1。2McKenna43．ABAQUS5513S4Ｒ*ＲebarLayerT3D2。。3CDP。CDPE01fc1υ0．211ψ30°9*ConcreteCompressionHardeningεinσc1aσcE=fc/29。ftftm*ConcretetensionStiffeningType=Strain4－0．1E01bεckσt。ρ=2700kg/m3*DampingBeta=3×10－5。ABAQUS。4114/MPa14E0/MPadcuαC4032．1332180．50．1C6052．1372140．50．1C8073．2412330．50．15C-11。14fy386．0MPaEs2．07×105MPak=0．002Esρs=7800kg/m3。5B。511JLQ-16“”“McKenna”-“”“”0．1m/s2。6---McKenna--。6McKenna-。55220136JLQ-137-“S”511“”“S1”522-“S2”-“S3”。-“S1”“S2”。“S1”“S2”。“”。。。7“”“”。CDP、8“”εpt7εpt7。8CDPwc=1wt=01－dc1－dc1－dtdcdcdc。8CDP-10McKenna2ＲＲεＲE0εＲεＲ=εＲ/E0－dcuεu/1－dcudcuεufu/εuE0≤dcu＜43．ABAQUS5531。dcuEcrdc。dcu1*ConcreteCompressionDamagedcεin。“”εptεpt=0。ABAQUSCDPεpt00。εpt=αεtαdt=1－σt/1－αE0εt=1－σt/1－αE0εck+σt。1α0．1*ConcreteTensionDamageεckdt。4CDP14JLQ-3～JLQ-9JLQ-5、JLQ-6JLQ-7。79。“”。JLQ-3、JLQ-4JLQ-5。1-JLQ-12“S2”JLQ-8JLQ-9。5ABAQUSCDP71aJLQ-3bJLQ-4cJLQ-5dJLQ-6eJLQ-7fJLQ-8gJLQ-99ABAQUS。2-McKenna-。3CDP。4。McKenna-。1．5542013ABAQUSJ．20063661-64．2．J．200636142-149．3．J．2009391015-1852．4．J．201141S1101-104．5．-J．20123114137-142151．6．ABAQUSJ．2008388127-130．7．ABAQUSJ．200783254-260．8．-J．201027634-38．9．———、ABAQUSMSC．MAＲCSAP2000M．2009123-126．10ABAQUSInc．ABAQUSAnalysisUser’sManualV6．12M．11GB50010—2010S．2010209-214．12MCKENNAF．ObjectorientedfiniteelementprogrammingframeworksforanalysisalgorithmsandparallelcomputingD．BerkeleyCaliforniaU．S．UniversityofCalifornia1997．13HOGNESTADEHANSONNWMCHENＲY．ConcreteStressDistributioninUltimateStrengthDesignJ．JournaloftheAmericanConcreteInstitute1955524455-477．14．ＲCJ．201245251-59．