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IndustrialConstructionVol.39,Supplement,2009工业建筑2009年第39卷增刊国忠岩1张文元2(11MCC,100176;21,150090):ABAQUS615,,,:;;;;COMPARISONBETWEENSEISMICPERFORMANCEOFBUCKLING-RESTRAINEDBRACEDSTEELFRAMESANDCOMMONBRACEDFRAMESGuoZhongyan1ZhangWenyuan2(11MCCCapitalEngineering&ResearchIncorporationLimited,Bejing100176,China;2.HarbinInstituteofTechnology,Harbin150090,China)Abstract:UsingABAQUS6.5thetime-historyofthefollowedmodelsisanalyed:themodelofcommoncentralbracedframe,andthatofcentralbracedframeusingBRBwithlowyieldpointsteelunderbigearthquake,itisfoundthatusingBRBwithlowyieldpointsteel,cannotonlysolvetheproblemofbuckling,butalsoalldecreasedisplacementresponse1Keywords:buckling-restrainedbrace;centralbracedframe;seismicresponseanalysis;geometricandmaterialnonlinear;lowyieldpointsteel:,,19827,:2009-03-290,,,,,,,,,,10,,[1]1,,,,,,,,[2-5]1,5:;;;;,,()1),,,6201-;2-;3-;4-;5-;6-1,2),,(),3),,,,:a1:b14),,,,,,5)(),,2,,,,12,(F12-P,P)(F12-F100,F100)211模型设计12,3916m,313m,,2a2b,,565656F12-P,F12-P,,GF12-F100[6-10]a-;b-2212有限元模型的建立ABAQUS6151)3,,,,32)F12-PQ235F12-F100Q235,LY100(fy=100MPa),M=013,E1=2106@105MPa,-,E2=0102E1,4,/110+0150,,(621)4-3),ABAQUS/standard,RayleighRayleigh,MK,C=AM+BK,AB,,N,X1X2AB,:N=A2X1+BX12=A2X2+BX22:AB=2NX1+X2X1X21:X1X2,;N01024),:a1,,,b1,,c1d1,213地震波情况及提取节点的确定,56,El-Centro(EL)TAFT(QA)(GM)214罕遇地震下的时程分析,ABAQUS615F12-F100,Mises5,F12a-EL(Rmax=11371MPa);b-TAFT(Rmax=11353MPa);c-QA(Rmax=01869MPa);d-GMRmax=11010MPa):#-,Mises;Mises5GF12-F100Misesa-EL;b-TAFT;c-QA;d-GM6F12-PF12-F100622-F100ELTAFT,GM,QA6F12-F100F12-P,ELTAFT,QAGM,,(ELTAFT),;(ELTAFT),,3:1),,2)(),,[1]1[D]1:,20051[2],1(Ñ)[J]1,2005,7(1):1-121[3],1(Ò)[J]1,2005,7(2):1-111[4],1[J]1,2006,21(1):46-481[5],1[J]1,2006,26(3):100-1031[6]GB50011-2001[S]1[7]GB50009-2001[S]1[8]GB50017-2003[S]1[9]()[S]1[10]JGJ99-98[S]1[11][D]1:,20071(615),,,,,,,,20~40MPa,51)2),3),,4)[1],1[J]1,1998,15(1)1[2],1[J]1,2003,33(10)1[3]GB50191-93[S]1