国内外规程对方钢管混凝土短柱轴压承载力计算对比分析  

Comparison and analysis of ultimate bearing capacity of concrete-filled square steel tube short columns under axial compression calculated by codes at home and abroad

作　　者：何夕平[1] 张大伟[1] 许前程[1] 

机构地区：[1]安徽建筑工业学院土木工程学院,合肥230022

出　　处：《青岛理工大学学报》2013年第1期33-38,共6页Journal of Qingdao University of Technology

基　　金：国家科技支撑计划课题资助项目(2011BAJ03B04);安徽建筑工业学院自然科学基金资助项目(KF2009.10)

摘　　要：介绍了国内外计算方钢管混凝土轴压短柱极限承载力7种设计规程,依据各规程设计计算原理,选取了8种不同混凝土强度、3种不同钢材强度、7种不同的含钢率,共计24个试件进行理论计算,并将理论计算结果与试验结果进行对比分析.计算结果表明:尽管各规程计算公式在形式上有所不同,但考虑因素都大同小异,计算结果大多偏于保守,其中我国规程DBJ 13-51—2003计算结果与试验结果吻合较好.This paper introduces seven kinds of codes of calculating the ultimate bearing capac- ity of concrete-filled square steel tube short columns under axial compression. According to the calculation principle of each code, it selects eight different kinds of concrete strength, three of wall thickness of steel tube, seven of steel ratio, a total of 24 specimens to carry out the calculation. The calculated results show that although there are differences in form a- mong these codes, the factors of these codes connected have little difference and most of the calculated results are conservative. The calculated results of code DBJ 13-51--2003 agree with those obtained by the test.

关 键 词：方钢管混凝土 短柱 轴心受压 极限承载力 理论计算 对比分析 

分 类 号：TU398.9[建筑科学—结构工程]