柱承式群仓结构模型模拟地震振动台试验研究  

Study of shaking table tests on the model of group silos structures

作　　者：王录民[1] 张华[1] 卢文胜[2] 肖昭然[1] 张昊[1] 许启铿[1] 

机构地区：[1]河南工业大学土木建筑学院,郑州450052 [2]同济大学土木工程防灾国家重点实验室,上海200092

出　　处：《建筑结构》2010年第10期41-43,共3页Building Structure

基　　金：国家自然科学基金项目(50678061);河南省科技攻关项目(0624250004)

摘　　要：通过对立筒群仓结构1/16整体模型进行模拟地震振动台试验,测试了模型结构的动力特性及其在7度多遇、7度基本、7度罕遇地震作用下的加速度、位移和侧压力变化等动力反应,研究了模型结构的破坏机理和破坏模式,并根据试验结果和相似理论,推导和分析了原型结构的地震反应。试验及分析结果表明:立筒群仓模型整体抗震性能良好,能够抵抗所在地区7度设防烈度下各水准地震作用。同时对薄弱部位提出了加强措施。A shaking table test of a 1/16 scale model of the reinforced concrete group silos was carried out.The dynamic properties,lateral pressure and responses of acceleration and deformation on the different level earthquakes were measured.Its dynamic behavior,cracking pattern and failure mechanism were studied as well.According to the model test results,the seismic response of the prototype was deduced and analyzed.Both the test and analytical results show that the prototype has a better seismic behavior,and it is able to survive under different level earthquakes.Some suggestions for the design of the structure were put forward.

关 键 词：立筒群仓 振动台试验 地震反应 动态侧压力 

分 类 号：TU323.5[建筑科学—结构工程]