组合隔振(震)砌体结构模型振动台水平隔震试验研究  

Horizontal seismic isolation shaking table test of a masonry structure with composite isolation system

作　　者：李亚明[1] 胡锡勇[2] 郦敏浩[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7-12,共6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：遭受地铁振动影响的建筑往往位于抗震设防区,对这类建筑进行隔振设计时,其隔振层最好兼具隔震的效果。某6层砌体结构采用了橡胶支座与叠层橡胶滑板支座并联的组合隔振(震)系统,针对这种组合隔振(震)系统的水平隔震效果进行了振动台试验研究,对比了隔震和非隔震情况下模型结构在不同水准地震作用后的动力特性、加速度反应、层间位移角反应、基底剪力及模型结构的破坏情况。结果表明,这种组合隔振(震)系统的水平隔震效果明显。Buildings suffered from the subway-induced vibration are frequently located in the seismic fortification area.The vibration isolation layer is expected to have the seismic isolation capacity when designing such buildings.A six-story masonry structure was equipped with rubber bearings and laminated rubber sliding bearings.To appraise the horizontal seismic isolation effect of the composite isolation system,the dynamic characteristics,acceleration responses,relative storey drifts,base shear force and damage of the structure with and without the composite isolation system under different earthquake levels were tested on the shaking table.The results show that the horizontal seismic isolation effect of the composite isolation system is remarkable.

关 键 词：砌体结构 组合隔震 振动台试验 动力特性 

分 类 号：TU352.1[建筑科学—结构工程]