偏心受压矩形钢管混凝土短柱承载力研究  

Research on Loading Capacity of Short Column Made of Concrete-Filled Rectangular Steel-Tube under Eccentric Compression

作　　者：姚民乐[1] 高金良[1] 

机构地区：[1]嘉兴学院建筑工程学院,浙江嘉兴314001

出　　处：《建筑材料学报》2009年第2期148-151,共4页Journal of Building Materials

摘　　要：研究了偏心受压时矩形钢管混凝土中受压区钢管对混凝土的紧箍力计算方法,根据莫尔强度准则导出了受压区混凝土强度的计算公式,并以极限平衡理论为基础,推导了偏心受压矩形钢管混凝土短柱承载力的计算公式;制作了10个相同含钢率的矩形钢管混凝土短柱,按不同的偏心率进行加载试验,测出其极限承载力,并将计算结果和试验结果进行了比较,结果吻合较好.Computational method for hooping force exerted by the steel tube in compression zone of a rectangular concrete-filled steel tube under eccentric compression was studied.The computational formula of concrete strength under compression is deduced according to Mohr＇s strength criteria.The formula for capacity of a short column made of rectangular concrete-filled steel tube under eccentric compression is deduced based on limit equilibrium theory.Ten short columns made of rectangular concrete-filled steel tube containing same steel ratio were manufactured,load tests were carried out by means of different eccentric compressive load,their limit capacities were measured.Computational results are well in accord with experimental ones.

关 键 词：钢管混凝土 偏心受压 承载力 极限平衡 

分 类 号：TU528.571[建筑科学—建筑技术科学]