轴向受压钢管混凝土短柱的表观弹塑性本构方程及其极限承载力  

The Apparent Elastoplastic Constitutive Equation and Ultimate gth of a Concrete-filled Steel Tube Under Compression

作　　者：汤国栋[1] 汤羽[2] 

机构地区：[1]成都科技大学 [2]重庆大学

出　　处：《中国公路学报》1991年第4期45-51,共7页China Journal of Highway and Transport

摘　　要：本文基于连续介质力学方法,对钢管混凝土进行弹塑性分析,导出了其比例极限、极限承载力的计算表达式和表观弹塑性本构方程.与实验比较表明,公式较为精确地描述了钢管混凝土的初始弹塑性行为.Employing the continuum mechanics method, an elastoplastic analysis of the concrete filled steel tube is carried out in the paper, from which the theoretical formulations of the proportional limit and the ultimate strength as well as the apparent constitutive equation are derived. Comparison between calculation and test result shows that the formulations derived can depict the initial elastoplastic behavior of a concrete-filled steel tube short column with accuracy.

关 键 词：钢管混凝土 弹塑性 极限承载力 

分 类 号：TU528.59[建筑科学—建筑技术科学]