钢管钢骨混凝土柱压弯性能试验研究  

EXPERIMENTAL RESEARCH ON STEEL TUBE COLUMNS FILLED WITH STEEL-REINFORCED CONCRETE SUBJECTED TO COMPRESSION-FLEXURE LOADING

作　　者：刘晓[1,2] 王连广[3] 李敏[2] 

机构地区：[1]清华大学土木工程系,北京100084 [2]沈阳大学建筑工程学院,沈阳110044 [3]东北大学资源与土木工程学院,沈阳110004

出　　处：《工业建筑》2012年第12期86-90,共5页Industrial Construction

基　　金：辽宁省自然科学基金项目(20092044);辽宁省教育厅科技攻关项目(2008468)

摘　　要：对5根钢管钢骨混凝土组合柱的压弯性能进行试验,研究不同轴压比和加载方向对组合柱承载力和变形的影响,并深入解析钢骨和钢管之间混凝土双重紧箍效应对承载力提高的工作机制,以及试件在受拉区和受压区紧箍力的分布规律。根据试验结果,采用N-M相关关系法确定钢管钢骨混凝土压弯构件的实用计算公式,计算值与试验值吻合较好。An experimental research on 5 steel tube columns filled with steel-reinforced concrete subjected to compression-flexure loading was carried out. Ultimate bearing capacity and deformation were studied corresponding to different ratio of axial compression and loading direction. It was deeply analyzed the influence of double confining on bearing capacity, which was between the steel skeleton and steel tube, and distributing regularity of double confining in tensile region and compressive region. Contrasting with the experimental results, the practical formula of compression-flexure was built by N - M relationship, and a good agreement was obtained between the calculated results and the experimental results.

关 键 词：钢管钢骨混凝土 压弯 试验研究 承载力 轴压比 

分 类 号：TU398.9[建筑科学—结构工程]