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(II):()()1.[1]2.,Wilson-2.12.1.1()()()()()tPtXtKtXtCtXMΔ=Δ+Δ+Δ)(&&&(1)C(t)K(t)cij(t)kij(t)1(a)(b)cij(t)=jDixddf&()jSiijdxdftk=(2)2.1.2Wilson-Wilson-[2]2.222k01Fy(Xy)a0a00.1a0=0.1IIIXY22.3[3]333kb1FbyFbbabab0.05ab=0.042.4[1]2.4.1[1](3)F0kdx∞kdkbdFbdy⎪⎩⎪⎨⎧+===)()(21dbdbbdbbdbdkkkkkkkk(3)Fbdy=F0(4)4kdF0[1]22.4.2MaxwellJARRET[4][1](6)cd0cada⎪⎩⎪⎨⎧≠==))()((0))()(()(0xsignxsignxsignxsignxxsigncFdddc&&&&a(5)(2)0dddcdcxFca=∂∂=&sign()1-dxxa&&(6)ad1()∞=tc0=ix&(7)=0x&0.5cm/scd1(5)JARRETcd0ad[1]22.5II0.30.3FigueroaS38W1971SanJoseN31W1955TaftN21E19521971SanFernado1955SanJose1952KernCounty117.0cm/s2100.2cm/s2152.7cm/s20.250.30.35870cm/s2220cm/s2400cm/s23.3.13.1.1SanJose(N31W,1971)Taft(N21E,1952)Figueroa(S38W,1971)70cm/s267IYIIXIII3.1.2IIIXY1/4081/2391/4831/448IIIXY1/14711/6471/7901/168440%70%1/450IXIIY893.1.3()()()()()()tptftftftftfbdbk=++++mV(8)fk(t)f(t)f(t)0.00.51.01.52.02.53.03.54.04.55.05.50123456789(cm)0.00.51.01.52.02.53.03.54.04.50123456789(cm)fb(t)fbd(t)(11)0t:()()()()()()tEtEtEtEtEtEIbdbk=++++mz(9)Ek(t)E(t)E(t)Eb(t)Ebd(t)EI(t)CTAB3.23.2.130%45%IYIIX10110.00.51.01.52.02.53.03.54.04.55.00123456789(10-3)0.00.51.01.52.02.50123456789(10-3)0369121518212427300123456789(cm)05101520250123456789(cm)3.2.2IIY60%70%III1/501IYIIX1213IIIXYXY1/46(6)1/2571/6671/5151/1461/841/531/15768.170.4-237667.113.2.30510152025303540450123456789(10-3)0369121518210123456789(10-3)0510152025303540450100002000030000400005000060000700008000090000100000110000EIEμEζ(104Ncm)(s)0510152025303540450100002000030000400005000060000700008000090000100000110000EIEμEbEζEbd(104Ncm)(s)(a)(b)15IIX1030%60%90%IYIIX14154.(1)30%40%(2)40%70%1/45060%70%1/50(3)60%90%(4)CTAB1,(I):”0510152025303540450100002000030000400005000060000700008000090000100000110000EIEμEζ(104Ncm)(s)0510152025303540450100002000030000400005000060000700008000090000100000110000EIEμEbEζEbd(104Ncm)(s)2,R.W.,J.,(1985),“”,.3Prakash,V.,Powell,G.H.,andCampbell,S.(1993),“DRAIN-2DX,BaseProgramDescriptionandUserGuide(Version1.10)”,ReportNo.UCB/SEMM-93/17&18,DepartmentofCivilEngineering,UniversityofCaliforniaatBerkeley,U.S.A.4,(1998),“”,18(1),pp.60-70AnalysisandDesignofSeismicRetrofitofBeijingHotelwithEnergyDissipatorsPartII:TimeHistoryMethodWangYayongXueYantao(InstituteofEarthquakeEngineering,ChinaAcademyofBuildingResearch)OuJinpingWuBinLongXu(SchoolofCivilEngineering,HarbinInstituteofTechnology)ChengMaokunWangZhigang(BeijingBuildingDesignandResearchInstitute)AbstractEnergydissipationtechnologyisusedtoupgradetheaseismiccapacityofBeijingHotel.Inthispaper,nonlinearanalysisprogramofenergydissipationstructuresiswrittenwithwilson-method,consideringtheelastoplasticdeformationofstructure,elastoplasticbucklingofsteelbraces,andnonlinearstiffnessandnonlineardampingofJARRETenergydissipators.Then,theprogramisusedtocarryouttimehistoryanalysisandenergyanalysisofBeijingHotelretrofittedwithJARRETenergydissipationbraces,Theanalysisresultshaveshownthereasonabilityandfeasibilityofthestrengtheningmethodwithenergydissipationbraces.Keywordsenergydissipation,seismicretrofit,timehistoryanalysis