基于电涡流TTMDI的混合隔震体系性能研究

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关键词：基础隔震；电涡流TTMDI;频域优化；鲁棒性；动力弹塑性分析 中图分类号：TU352 文献标志码：A DOI:10.16385/j.cnki.issn.1004-4523.202403058

Performance of hybrid isolation system based on eddy current TTMDI

LI Xueqin, CAO Liyuan, LI Chunxiang (DepartmentofCivilEngineering，SchoolofMechanicsandEngineering Science，ShanghaiUniversity，Shanghai20044，China）

Abstract:Inodertoimproeteoverallrobustsoftestructureandreucethisplacemntofteisolationlar，tispaperproosa hybrid isolation system (abbreviated as BIS + EC-TTMDI system) that integrates a tuned tandem mass damper-inerter (TTMDI) based on an eddycurrent damper(ECD)withabaseisolatedstructure(BIS).Basedonthestochasticquivalentlinearizationandparticleswarm optimization (PSO) algorithm of the isolation layer and the ECD，the optimal design framework of the BIS + EC-TTMDI systemwiththe minimumdisplacemetvarianeoftesationlyeasthotiatiogoalisstablishdntequcydomainInodertosdyissic performance，the BIS + EC-TTMDI system is atached toa7-layer frame structure.The performanceof the structure is evaluated in the frequencydomainTen，undertheexciaoofsevennar-feldsesmicwaves，tedyamicelastopastcalulationaalysisoftheulti degree-of-freedom BIS + EC-TTMDIsystem iscaried outto verify its high performance of seismic mitigationand isolation.Theresults show that，compared with the uncontrolled，BIS + TMD，BIS + TMDI and BIS + TTMDI systems，the BIS + EC-TTMDI system has the best perfoanceibustsdsoatiolrsplacetsuppioIsofeteetceofsoatingof theBIS+EC-stisoslamogealompratiesItiaesattesoadtoleie (EC-TMDI)achieveteefectofsynergisticeergydisspationadthuseofteeddycurrentdampercabettrprotecttheisolation bearing and the control system.

Keywords: baseisolation;eddycurrentTTMDI; frequencydomainoptimization; robustness;dynamic elastoplasticanalysis

基础隔震是一种有效的被动控制技术[1],BIS在短周期地震作用下可以发挥优良的抗震性能。（剩余24875字）