开洞砌体墙抗震性能的有限元分析_胡亮霞

451720159BuildingStructureVol．45No．17Sep．2015*11221111000212100044。3ABAQUS3A-1、A-2、A-3-、、、、。TU522A1002-848X201517-0077-06FiniteelementanalysisonseismicperformanceofmasonrywallswithopeningsHuLiangxia1YangWei1ZhuEryu2ZhuKun2WangMansheng1ChenYu11BeijingInstituteofＲealEstateScienceandTechnologyBeijing100021China2SchoolofCivilEngineeringBeijingJiaotongUniversityBeijing100044ChinaAbstractIn-planestiffnessandshearcapacityofmasonrywallsaredecreasedbyopenings．Alongwithunbalanceddistributionofopeningstorsiondeformationwhichaggravatestheseismichazardeasilyoccursunderseismicexcitation．Basedonthequasi-staticexperimentsofthreemasonrywallswithopenings3modelsoforiginalmodelA-1reinforcedmodelA-2byone-sidemeshreinforcementmortarandreinforcedmodelA-3bybothone-sidemeshreinforcementmortarandsteelwindowframewereestablishedbyABAQUSsoftwareandnonlinearcalculationswerecarriedout．Theloading-displacementhystereticcurvesofallthreemodelswereobtainedunderthelow-cycliclateralloads．Inanalysesofhystereticcurvesstressandstraincontourshystereticcharacteristicsenergydissipationofmasonarywallsskeletoncurvesandstiffnessdegradationcurveswerecompared．TheFEMmodelsaswellasthereinforcementmeasureswereverifiedtobereasonableandeffective．Keywordsmasonrywallwithopeninghystereticcurvereinforcementsteelwindowframemeshreinforcementmortar*PXM2010-161102-096238。[e-mail]。0。。123。4-8ABAQUS。1。。。。C3D8Truss。24@120/20050×50×4Q235。-。fy=210MPaEs=2．0×105MPa0.3。、1。2015、、1、/kg/m370020007850500/MPa1.696×1037.5×1042.0×1031.1×1040.150.20.30.33ABAQUS。-。92～5。-2/MPa/MPa01.2800.002302.750.390.000261.750.090.003102.630.480.000752.270.170.003802.400.560.001202.520.250.004402.120.620.001702.670.320.004801.820.66-3/MPa/MPa00.23000.00080.1300.370.00020.2050.070.00100.1050.430.00040.1800.120.00120.800.570.00060.1550.280.001800.63-4/MPa/MPa08.6500.0025968.230.490.0001979.110.110.0034407.130.560.0004439.610.200.0041806.020.610.00066210.010.280.0048005.120.670.0010879.820.340.0054504.020.730.0015509.370.40-5/MPa/MPa01.200.00080.40.390.00021.00.080.00100.20.510.00040.80.140.012000.620.00060.60.2733A-1、A-2、A-3。3300mm×2800mm×240mm2560mm×1800mm1。3.1、、1Part。、Tie。、。40kN。32。23.2A-1A-2A-33Seed。。StructuredSweep。3.33。3。874517．。。3.4。、。。。3。344.1、A-1A-2A-334。436。4。4.2-4P-Δ、、。A-1A-2A-353。。A-2A-3A-1。。。。。4.3。6。9720156A-1A-2A-3。A-1A-1A-2A-3A-2A-1A-3A-3。117。71SA-2/SA-11.458SA-3/SA-21.706SA-3/SA-12.488。。4.46Pc、Δc、Pu、Δu。73、3。3。3A-3、A-2、、A-1。6A-1A-2A-312.2970.6661.132217.46019.41032.997341.24252.7789.711470.09294.220160.173592.798137.287233.3896135.130194.761332.2307175.484262.904447.4768228.335330.014561.0259236.076404.028686.84710296.808477.143811.14311307.928512.052896.46012557.2341026.93413536.8731212.000141206.426151180.7207SA-2/SA-1SA-3/SA-2SA-3/SA-110.2901.7000.49321.1121.7001.89031.2801.7002.17541.3441.7002.28551.4791.7002.51561.4411.7062.45971.4981.7022.55081.4451.7002.45791.7111.7002.909101.6081.7002.733111.6631.7512.911567084517．4.5ABAQUS。20%。。8。。A-1A-2A-35.3%10%14%26.1%16.5%15.7%。、。8/kN/mm/kN/mmA-19.2111.058.848.7510.007.0016A-218.8618.3618.0317.151615.4732A-333.4025.2927.0529.2822.0023.37348～10、、。。、。。-。KiKi=Pi+－PiΔi+－Δi1891011Pii－PiiΔii－Δii。1K11。11。Kc。。123A-1A-2A-312182015。A-2A-3A-1。51、。。2、、。4。3。ABAQUS。1．J．2011411194-97．2．J．201343S2693-696．3．ＲCJ．2012452137-141．4．J．201337162-66．5．J．2011336116-120．6．J．2012321128-133．7．J．2013332152-157．8WEIYANGMANSHENGWANGEＲYUZHUetal．AcomparativestudyonseismicreinforcementtestofBeijingruralbrickbuildingC//AdvancedMaterialsＲesearch．2011194-1961951-1957．9．J．2008381080-82．58。。1．J．201334443-48．2ASCE7-05MinimumdesignloadsforbuildingsandotherstructuresS．ＲestonAmericanSocietyofCivilEngineers2005．3ELLINGWOODBＲ．MitigatingriskfromabnormalloadsandprogressivecollapseJ．JournalofPerformanceofConstructedFacilities2006204315-323．4GSA2003ProgressivecollapseanalysisanddesignguidelinesfornewfederalofficebuildingsandmajormodernizationprojectsS．WashingtonD．C．GSA2003．5．J．20133441-14．6．D．2008．7MINLIU．ProgressivecollapsedesignofseismicsteelframesusingstructuraloptimizationJ．JournalofConstructionalSteelＲesearch2011672322-332．8SANGWOOKBAEＲOGEＲALABOUBEABDELDJELILBELAＲBIetal．Progressivecollapseofcold-formedsteelframedstructuresJ．Thin-WalledStructures2008464706-719．9．J．2013304322-330．10．J．2010317107-109．11．J．200740345-49．12．J．2010401154-159．13．J．201027176-83．28