钢管混凝土格构柱抗震性能试验研究  

Experimental Study on Seismic Performance of Concrete-filled Steel Tubular Lattice Columns

作　　者：杨宁 尹国安 王永贞 王冬梅 YANG Ning;YIN Guo-an;WANG Yong-zhen;WANG Dong-mei(School of Civil Engineering and Architecture,Linyi University,Linyi 276000,China)

机构地区：[1]临沂大学土木工程与建筑学院,临沂276000

出　　处：《价值工程》2021年第2期185-186,共2页Value Engineering

基　　金：省级大学生创新创业训练计划项目(S201910452038)。

摘　　要：为研究钢管混凝土格构柱的抗震性能,进行了6个试件拟静力试验。研究表明:钢管混凝土格构柱具有良好的抗震性能;试件轴压比从0.2增大到0.4,承载力降低3.7%,位移延性系数降低10.6%;柱肢混凝土强度对格构柱承载力具有较大影响;构件的开洞面垂直于加载方向时,承载力、刚度和位移延性系数均无明显变化,当构件的开洞面平行于加载方向时,构件水平承载力降低了28.0%,延性系数降低了23.5%。In order to study the seismic performance of concrete-filled steel tubular lattice columns,six pseudo-static tests were carried out.The research shows that:the concrete-filled steel tube lattice column has good seismic performance;the axial compression ratio of the specimen is increased from 0.2 to 0.4,the bearing capacity is reduced by 3.7%,and the displacement ductility coefficient is reduced by 10.6%;the strength of column concrete has a great influence on the bearing capacity of lattice columns;when the opening surface of the component is perpendicular to the loading direction,the bearing capacity,stiffness and displacement ductility coefficients have no obvious changes,when the opening surface of the component is parallel to the loading direction,the horizontal bearing capacity of the component is reduced by 28.0%,and the ductility coefficient is reduced by 23.5%.

关 键 词：钢管混凝土格构柱 拟静力试验 有限元分析 抗震性能 

分 类 号：TU375.3[建筑科学—结构工程]