组合隔振(震)砌体结构模型振动台竖向隔振研究  

Vertical vibration isolation shaking table test of a masonry structure with composite isolation system

作　　者：张晖[1] 张善莉[2] 

机构地区：[1]上海建筑设计研究院有限公司,上海200041 [2]同济大学结构工程与防灾研究所,上海200092

出　　处：《建筑结构》2013年第13期13-16,6,共5页Building Structure

基　　金：上海市科学技术委员会科研项目(09dz1207800);上海市城乡建设和交通委员会科研项目(重科2010-002)

摘　　要：采用橡胶支座做基础隔震的结构隔离水平地震作用的效果已被众多试验和实际工程所证实,然而能否通过适当的组合和设计使橡胶支座基础隔震结构在隔离水平地震作用的同时,能够隔离地铁引起的建筑结构竖向振动具有重要的研究价值。某6层砌体结构拟采用橡胶支座与叠层橡胶滑板支座并联组合作为隔振(震)层来隔离地铁引起的竖向振动。为了检验该组合隔振(震)系统的竖向隔振性能,对此6层砌体结构的模型进行了振动台试验,测试了模型的自振频率,检验了模型竖向隔振能力。结果表明,这种组合隔振(震)系统能够有效地隔离地铁引起的结构振动,可以在有类似要求的工程中推广使用。It had been confirmed by numerous experiments and engineering facts that the isolation ability of the isolation structure with rubber bearing was excellent.It will be of great value if we can achieve the vertical vibration isolation capacity as well as the horizontal seismic isolation capacity by some kind of design and rearrange the rubber bearing.A six-story masonry structure was supposed to use rubber bearings and laminated rubber sliding bearings as its isolator layer to isolate the vertical vibration.To appraise the vertical seismic isolation effect of the composite isolation system,a model of the six-story masonry structure was designed and tested on the shaking table.The natural frequency and vertical vibration capacity was testified.It is shown that this composite isolation system can effectively isolate the subway induced vibration.The research results can be a reference in theory and method for the similar engineering.

关 键 词：橡胶支座 叠层橡胶滑板支座 地铁振动 竖向隔振 振动台试验 

分 类 号：TU352.1[建筑科学—结构工程]