层间隔震结构隔震层位置的敏感性研究  

Study on Sensitivity of Isolation Layer Position of Story Isolation

作　　者：李振国[1] 江宜城[1] 

机构地区：[1]华中科技大学土木工程与力学学院,湖北武汉430074

出　　处：《土木工程与管理学报》2011年第3期362-365,共4页Journal of Civil Engineering and Management

摘　　要：以一栋16层办公楼为工程背景,研究了层间隔震的不同隔震层位置对其减震效果的影响,使用CSI-ETABS三维非线性结构分析软件进行分析,得到了各不同隔震层位置对应的隔震后模态质量参与系数以及层间剪力、绝对加速度、层间位移角包络图。发现如果将隔震支座布置在基础隔震时的层间剪力最大层,同时限制住下部子结构层间剪力,将得到比较好的减震效果。To investigate the influence of different isolation layer position on seismic re sponse,a 16-storey office building was built by the software of CSIETABS to do 3-D nonlinear structure analysis.The values of modal quality participate,inte rlaminar shear,absolute acceleration and envelope diagram of displacement-angl e between floors of seismic responses of various isolation layer position.The r esult shows it could get a better damping effect if we set the isolation layer i n the story which has maximum interlaminar shear layer when the structure baseisolated,and restrict lower substructure interlayer shear at the same time.

关 键 词：层间隔震 隔震层位置 减震效果 ETABS 

分 类 号：TU352.12[建筑科学—结构工程]