页岩烧结保温砌块框架填充墙平面外振动台试验研究  

Out-of-plane shaking table experiments on frame infilled walls with shale fired heat-insulation block

作　　者：浮广明[1] 白国良[2] 权宗刚[1,2] 肖慧[1] 王辉 余青[2] 

机构地区：[1]西安墙体材料研究设计院,西安710061 [2]西安建筑科技大学土木工程学院,西安710055 [3]新疆凯乐新材料有限公司,乌鲁木齐830009

出　　处：《振动与冲击》2015年第20期37-45,共9页Journal of Vibration and Shock

基　　金：国家科技支撑计划课题(2011BAJ04B01;2011BAJ04B01-2;2011BAJ08B05-4;2012BAJ19B04-02);陕西省科技计划项目(2010KJXX03)

摘　　要：利用4片足尺单层单跨页岩烧结保温砌块框架填充墙试件平面外模拟地震试验,研究在El-Centro波、Taft波、天津宁河波及Double El-Centro波等地震波作用下试件反应特点;通过频率、加速度、位移、钢筋应变反应分析填充墙与框架结构间连接构造措施对试件平面外地震反应影响。结果表明,试件墙梁或墙柱刚性连接较柔性连接频率下降慢,加速度放大系数及位移小,试件平面外地震反应小;用两条拉结带试件可明显减小其平面外地震反应。通过综合加权平均法正交分析知,对框架填充墙平面外地震反应影响因素中拉结带数量影响最大,其次为墙梁连接方式,最后为墙柱连接方式。两条拉结带、墙梁及墙柱均采用刚性连接方案试件平面外地震反应最小。Out-of-plane shaking table experiments on a model structure consisting of 4 full scale frame infilled walls with shale fired heat-insulation block were carried out and its response characteristics were investigated under the simulative earthquakes of El-Centro wave,Taft wave,Tianjing wave and Double El-Centro wave. The influences of the construction measures between the filling wall and frame structure on the out-of-plane seismic responses of the model structure,such as the frequency,acceleration,relative displacement and rebar strain response,were analysed. The results show that the frequency of the specimen with a wall-beam or wall-column rigid connection is reduced more slowly than that with a flexible connection,meanwhile the acceleration amplification coefficient and relative displacement become smaller,and using two binding belts can obviously reduce the out-of-plane seismic response of the model structure. By using the synthetic weighted mark method,the most influential factor on the out-of-plane seismic response of the frame infilled walls,is the number of binding belts,the type of wall-beam connection succeeds and then is the wall-column connection.

关 键 词：页岩烧结保温砌块 框架填充墙 振动台试验 平面外地震反应 刚性连接 柔性连接 

分 类 号：TU364[建筑科学—结构工程] TU317.1