消能减震结构设计方法研究

43420132BuildingStructureVol．43No．4Feb．2013*212003。、、。。TU973．3+1A1002-848X201304-0060-06ResearchonthedesignmethodofenergydissipationstructurePeiXingzhuHeFangqianSchoolofCivilEngineeringandArchitectureJiangsuUniversityofScienceandTechnologyZhenjiang212003ChinaAbstractThemethodsofthemultipleyieldstrengthofstructureandequivalentlinearizationwereresearchedtodiscussthedesignofenergydissipationstructure．Theoptimaldampingamountofstructurewithadditionalsteeldamperswascalculatedbythesetwokindsofmethodsandthequantitativeanalysiswasdone．Theeffectonthestructurewiththeoptimaldampingamountwhichwascalculatedbythesetwomethodswasdiscussed．Thevaluesinculdingthedisplacementthespeedtheplasticratioandshearforceofthemainstructurewerelessthantheoriginalstructure．Theresultsofbothtwomethodscanbereferencedbydesignersanditcouldbebeneficialforthepromotionofenergydissipation．Keywordsenergydissipationsteeldampertimehistoryanalysisequivalentlinearizationoptimaldampingamount*CXZZ11_0277。[e-mail]。01。。2。。。3。13074115.5m4m2。HQ345206GPa1980kg/m2。3。Fortran434．231/mm1～6□600×600×50×50□600×600×46×467～12□600×600×42×42□600×600×38×3813～18□600×600×34×34□600×600×30×3019～24□600×600×28×28□600×600×25×2525～30□600×600×22×22□600×600×19×19H792×300×14×221～30H800×300×14×26H800×300×14×222up1/mup2/msk1/N/msk2/N/msk3/N/m10.0210.0288.2×1082.2×1086×10720.0240.0347.0×1081.7×1084×10740.0260.0376.3×1081.8×1072×10760.0290.0605.9×1083.3×1072×10790.0300.0705.6×1082.8×1078×106120.0300.0605.2×1084.0×1076×106150.0290.1005.0×1081.9×1075×106180.0300.1004.3×1089.0×1062×106200.0260.1004.2×1087.3×1062×106210.0260.1003.9×1081.3×1073×106240.0250.1003.1×1088.4×1062×106260.0230.1002.5×1083.7×1069×105280.0200.1001.5×1088.8×1062×106300.0100.0009.1×1072.3×1076×106up1up22sk1sk22sk33。42。2M¨x+C+Cfx+K+Kfx=－M1¨xg1MCRayleigh[]C=α[]M+β[]KC[]f[]K[]K[]CK[]f{}x{}x{}¨x、¨xg。3。KOBETOHOKU40.01s。8Ⅱ。Wilson-θ570cm/s2400cm/s20.01s30s。4T=0.1～0.15nn6n=303～4.5s。-0-0T=5.645s0.84.52s。56《》GB50011—20107、。。。41620135678910λ。λ=0.10.20.30.40.5-1、-2、-3、-4-5。76。0.003m-00.11。-08。9。λ=0.30.40.5。1011。KOBE20TOHOKU。。12。。136ηi。。0.30.40.5-3-0。8～13-3λ=0.3λjia=0.3。589。。。。5.1Kb、KdKaKfKKa=11/Kb+1/Kd226434．1112131415ζ=0.02K=Ka+Kf35.2μKa/KfRdRa14。。3DhζeqTeq3RdRa。Dh=1+40ζ01+40ζ槡eq4ζeq=ζ0+2μπpln1+pμ－1μp5p=11+Ka/Kf6ζ0。Teq=Tfμμ+Ka/K槡f7Rd=DhTeqTf8Tf1。Ra=RdTfT()eq295.38、、Ⅱ15。5.41、ζ0=0.02。21Tf=5.645s。82.38m1.381m1/60。1/1500.4。3μKa/Kf7Rd=0.40Ra=0.657。。410。1636201316。0.0067m0.146。Kai=Qihi∑ni=1Kfih2∑ni=1Qihiμ+KaKf－μKfiKai≥010QiiKfiiKaii。5.517～21。。20。17622～25。、。18192021μ=8.67Ka/Kf=0.6570.7840.81μ=4Ka/Kf=0.6570.40.657。。46434．2223242571λjia=0.3。2。。1．M．2008．2．J．200933326-33．3．J．201053S2282-288．4．M．2006．5．M．2007．6GB50009—2012S．2012．7GB50011—2010S．2010．8KASAIKFUYMWATANABEA．PassivecontrolsystemsforseismicdamagemitigationJ．JournalofStructuralEngineering19981245501-512．9FUYMKASAIK．ComparativestudyofframesusingsupplementalviscoelasticandviscousdampersJ．JournalofStructuralEngineering199812410513-522．CDDVDCDiGreen2015。iGreen。50。MiniwizJohannBoedecker。iGreen5D。、、。。———。NatrilonPETiGreen、。56