两级变阻尼TMD考虑环形水箱内液体晃动的地震响应分析

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关键词：高耸结构；两级变阻尼；液-固耦合；环形水箱；TMD；地震激励 中图分类号：TU973.2；TU973.3+1 文献标志码：A DOI：10.16385/j.cnki.issn.1004-4523.202308042

Abstract：Inordertoconsidertheefectofliquidsloshinginananularwatertankonmechanicalperformanceofatwostage Vari abledamping TMD，takinganactualhighrisestructureasanexample，aglobal modelconsideringthe water tank asaparticleand theliquid-solidcouplingmodelofthewatertankuderthefullwaterstateandthenon-fullwaterstateareestablishedbyABQUS software.The seismicresponsesof the twostage variabledamping TMDunderdiferentliqud-solidcoupling statesarecompared andanalyzed.Theresultsshowthatheamplitudeand maximumdampingforceofthetwo-stagevariabledampingTMDconsider ingliquidslosingarelargerunderlargerseismicexcitationandtesloshingefectofliquidihibitsthefulldevelopmentofthec ond-stagedamping energyconsumptionof thetwo-stage variable damping TMD.With theincreaseofseismic excitation，the maximumbaseshearforceoftheliquidsolidcoupling modelislargerthanthatoftheparticlemodel，andtherelativeincreaseamplitude increases accordingly.

Keywords： highrisestructure;two-stage variabledamping；liquid-solidcoupling;anularwatertank；TMD;seismic excitation

高耸建筑往往在顶部楼层设置水箱，以适应消防要求。（剩余12021字）