L形多室式钢管混凝土短柱双向偏压性能研究  

RESEARCH ON BEHAVIOR OF L-SHAPED MULTI-CELL COMPOSITE CONCRETE-FILLED STEEL TUBULAR SHORT COLUMNS SUBJECTED TO BIAXIAL ECCENTRIC COMPRESSION

作　　者：李桐亮 屠永清[1] LI Tongliang;TU Yongqing(School of Transportation Science and Engineering, Beihang University, Beijing 100191, China)

机构地区：[1]北京航空航天大学交通科学与工程学院

出　　处：《工业建筑》2018年第5期156-161,共6页Industrial Construction

基　　金：国家自然科学基金项目(51278019)

摘　　要：设计并制作了9根L形多室式钢管混凝土短柱并进行双向偏压加载试验,分析其荷载-挠度曲线和荷载-应变曲线,验证截面符合平截面假定。利用有限元分析软件ABAQUS建立相应模型进行模拟,在验证数值模拟结果与试验结果吻合较好的基础上,对短柱双向偏压性能进行数值模拟计算,分析了多个参数对短柱承载力的影响。9 L-shaped multi-cell composite concrete-filled steel tubular short columns were designed and manufactured for biaxial eccentric compression test. The load deflection curve and the load strain curve were analyzed,and the cross section assumption was verified. The finite element analysis software ABAQUS was used to establish the corresponding model for simulation. Based on the validation of the numerical simulation and experimental results,a large number of numerical simulations for the biaxial eccentric compression performance of short columns were carried out,and the influence of various parameters on the bearing capacity of short columns was analyzed.

关 键 词：钢管混凝土 L形截面 双向偏压 偏心角 偏心距 

分 类 号：TU398.9[建筑科学—结构工程]