框架结构的隔震设计之抗震性能分析
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摘要
借助于有限元软件ETABS对唐山市一隔震设计的医院住院楼进行了地震反应分析,分析中采用了与传统的抗震结构相对比的方案,分析结果表明隔震结构延长了结构的周期,使结构的加速度反应大大减小,同时使结构的位移集中于隔震层,上部结构像刚体一样,自身相对位移很小,结构基本上处于弹性工作状态。
With the assistance of the finite element software ETABS,the paper has the seismic response analysis on the inpatient buildings of some hospital with the isolation earthquake design in Tangshan,adopts the scheme compared with the traditional seismic structure.It is shown by the result that the isolation seismic structure prolongs the structural period to reduce the acceleration response of the structure greatly,and to collect the displacement of the structure around the isolation layer,so the upper structure can be the same with the rigid body and self relative displacement is little and the structure is basically kept the elastic state.
With the assistance of the finite element software ETABS,the paper has the seismic response analysis on the inpatient buildings of some hospital with the isolation earthquake design in Tangshan,adopts the scheme compared with the traditional seismic structure.It is shown by the result that the isolation seismic structure prolongs the structural period to reduce the acceleration response of the structure greatly,and to collect the displacement of the structure around the isolation layer,so the upper structure can be the same with the rigid body and self relative displacement is little and the structure is basically kept the elastic state.
引文
[1]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[2]唐家祥,刘再华.建筑结构基础隔震[M].武汉:华中理工大学出版社,1993.
[3]周锡元,曾德民,樊永荣.具有软着陆保护的橡胶支座隔震体系[J].建筑结构学报,2000,21(5):1-2.
[4]李晓曦.探讨刚度对结构抗震的影响[J].山西建筑,2008,34(29):111-112.
[2]唐家祥,刘再华.建筑结构基础隔震[M].武汉:华中理工大学出版社,1993.
[3]周锡元,曾德民,樊永荣.具有软着陆保护的橡胶支座隔震体系[J].建筑结构学报,2000,21(5):1-2.
[4]李晓曦.探讨刚度对结构抗震的影响[J].山西建筑,2008,34(29):111-112.
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