SMA复合支座与磁流变阻尼器的双重隔震体系减震效果分析
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摘要
为了进一步改善SMA复合支座在强震下的隔震效果,特别是当复合支座的水平剪切变形较大时,将SMA复合支座与磁流变阻尼器相结合,建立一种基于SMA复合支座与磁流变阻尼器的双重隔震体系及其力学模型,并与单纯的SMA复合支座隔震进行对比。仿真分析表明,该体系不仅能够大幅度地减小隔震层的水平侧移,有效地保护隔震装置,而且能使上部结构的层间位移与加速度反应得到有效的控制,从而提高隔震建筑的减震效果和可靠性。
The hybrid seismic isolation system,consisting of the SMA strands-laminate rubber bearing combined with magneto rheological damper,was explored,for the sake of improving seismic isolation effect of the SMA strands-laminate rubber bearing under great earthquake,especially when level shear deformation of SMA rubber bearing is bigger.So does its mechanical model.In this paper,we compare the SMA strands-laminate rubber bearing with the hybrid seismic isolation system.Simulation analysis results indicate that the hybrid seismic isolation system is able to achieve both low inter-story drift and acceleration and at the same lime,limit the base displacement.The security of isolated structure was improved largely.
The hybrid seismic isolation system,consisting of the SMA strands-laminate rubber bearing combined with magneto rheological damper,was explored,for the sake of improving seismic isolation effect of the SMA strands-laminate rubber bearing under great earthquake,especially when level shear deformation of SMA rubber bearing is bigger.So does its mechanical model.In this paper,we compare the SMA strands-laminate rubber bearing with the hybrid seismic isolation system.Simulation analysis results indicate that the hybrid seismic isolation system is able to achieve both low inter-story drift and acceleration and at the same lime,limit the base displacement.The security of isolated structure was improved largely.
引文
[1]李忠献,陈海泉,刘建涛.应用SMA-复合橡胶支座的桥梁隔震[J].地震工程与工程振动,2002,4(22):143-148(Li Zhongxian,Chen Haiquan,Liu Jiantao.Bridgeisolation with SMA-composite rubber bearing[J].Earthquake Engineering and Engineering Vibration,2002,4(22):143-148(in Chinese))
[2]李彬双.一种新型SMA-橡胶支座及在网壳结构中的隔震研究[D].北京:北京工业大学,2004(Li Binshuang.A new type of SMA-rubber bearing and seismic isolation tolattice shell structures[D].Beijing:Beijing University ofTechnology,2004(in Chinese))
[3]周乾.SMA-橡胶复合支座在大跨空间结构中的隔震研究[D].北京:北京工业大学,2003(Zhou Qian.Seismicisolation of long-span spatial structures using SMA-rubbercomposite bearing[D].Beijing:Beijing University ofTechnology,2003(in Chinese))
[4]刘海卿.形状记忆合金绞线-叠层橡胶复合支座及其结构隔震研究[D].天津:天津大学,2006(Liu Haiqing.SMA strands-laminated rubber compound bearing and itsseismic isolation behavior[D].Tianjin:Tianjin University,2006(in Chinese))
[5]刘海卿,陈小波,王学庆.SMA绞线-叠层橡胶复合支座结构的动力反应[J].自然灾害学报,2007,16(5):130-134(Liu Haiqing,Chen Xiaobo,Wang Xueqing.Dynamicresponse of structure with SMA strands-laminate rubberbearing[J].Journal of Natural Disasters,2007,16(5):130-134(in Chinese))
[6]刘海卿,李忠献.应用形状记忆合金(SMA)-橡胶支座的建筑结构隔震[J].自然灾害学报,2006,15(3):86-90(Liu Haiqing,Li Zhongxian.Application of SMA-rubber bearing to structural seismic isolation[J].Journal ofNatural Disasters,2006,15(3):86-90(in Chinese))
[7]周福霖.工程结构减震控制[M].北京:地震出版社,1997
[8]刘海卿,李忠献,陈海泉.基于SMA复合橡胶支座的建筑结构自适应隔震[J].振动工程学报,2004,17(增):1061-1063(Liu Haiqing,Li Zhongxian,Chen Haiquan.Bridge isolation with SMA-composite rubber bearing[J].Journal of Vibration Engineering,2004,17(S):1061-1063(in Chinese))
[9]周福霖.隔震、消能减震和结构控制技术的发展和应用(上)[J].世界地震工程,1989(4):16-20
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[11]欧进萍,关新春.可控流体减振驱动器的研究与应用[C]//第一届全国结构控制会议论文集.承德,1998:179-190
[2]李彬双.一种新型SMA-橡胶支座及在网壳结构中的隔震研究[D].北京:北京工业大学,2004(Li Binshuang.A new type of SMA-rubber bearing and seismic isolation tolattice shell structures[D].Beijing:Beijing University ofTechnology,2004(in Chinese))
[3]周乾.SMA-橡胶复合支座在大跨空间结构中的隔震研究[D].北京:北京工业大学,2003(Zhou Qian.Seismicisolation of long-span spatial structures using SMA-rubbercomposite bearing[D].Beijing:Beijing University ofTechnology,2003(in Chinese))
[4]刘海卿.形状记忆合金绞线-叠层橡胶复合支座及其结构隔震研究[D].天津:天津大学,2006(Liu Haiqing.SMA strands-laminated rubber compound bearing and itsseismic isolation behavior[D].Tianjin:Tianjin University,2006(in Chinese))
[5]刘海卿,陈小波,王学庆.SMA绞线-叠层橡胶复合支座结构的动力反应[J].自然灾害学报,2007,16(5):130-134(Liu Haiqing,Chen Xiaobo,Wang Xueqing.Dynamicresponse of structure with SMA strands-laminate rubberbearing[J].Journal of Natural Disasters,2007,16(5):130-134(in Chinese))
[6]刘海卿,李忠献.应用形状记忆合金(SMA)-橡胶支座的建筑结构隔震[J].自然灾害学报,2006,15(3):86-90(Liu Haiqing,Li Zhongxian.Application of SMA-rubber bearing to structural seismic isolation[J].Journal ofNatural Disasters,2006,15(3):86-90(in Chinese))
[7]周福霖.工程结构减震控制[M].北京:地震出版社,1997
[8]刘海卿,李忠献,陈海泉.基于SMA复合橡胶支座的建筑结构自适应隔震[J].振动工程学报,2004,17(增):1061-1063(Liu Haiqing,Li Zhongxian,Chen Haiquan.Bridge isolation with SMA-composite rubber bearing[J].Journal of Vibration Engineering,2004,17(S):1061-1063(in Chinese))
[9]周福霖.隔震、消能减震和结构控制技术的发展和应用(上)[J].世界地震工程,1989(4):16-20
[10]周福霖.隔震、消能减震和结构控制技术的发展和应用(下)[J].世界地震工程,1990(1):7-17
[11]欧进萍,关新春.可控流体减振驱动器的研究与应用[C]//第一届全国结构控制会议论文集.承德,1998:179-190
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