钢管自密实混凝土短柱的有限元分析  

Finite element analysis of self-compacting concrete filled steel tubular stub columns

作　　者：朱国平[1] 叶燕华[1] 毛志伟[1] 杜艳静[1] 

机构地区：[1]南京工业大学土木工程学院,江苏南京210009

出　　处：《混凝土》2009年第7期17-19,共3页Concrete

基　　金：江苏省自然科学基金(BK2006179)

摘　　要：钢管自密实混凝土在工程结构中得到了广泛的应用。通过理论分析,建立了轴心受压钢管自密实混凝土短柱的承载力计算公式。并借助有限元分析软件ANSYS,考虑了钢管与混凝土两种材料本构关系的非线性,对轴心受压钢管自密实混凝土短柱进行了大量的非线性有限元分析,建立了钢管自密实混凝土短柱在轴心压力作用下的非线性有限元计算模型。通过数值模拟,对提出的轴心受压钢管自密实混凝土短柱的承载力计算公式得出的结果进行了验证,发现计算结果与有限元分析结果吻合良好。The self-compacting concrete filled steel tubes are used widely in engineering structures.The computational formulas of bearing capacity for self-compacting concrete filled steel tubular stub columns under axial compression are established by theoretical analysis.Taking into account nonlinear constitutive relation of steel tube and concrete, the nonlinear finite element models for self-compacting concrete filled steel tubular stub columns under axial compression are established by a large number of nonlinear finite element analysis with finite element software ANSYS. The results obtained from the computational formulas are confirmed by numerical simulation,which shows that the computational result is in compliance with the result by ANSYS.

关 键 词：钢管自密实混凝土 短柱 非线性有限元 承载力 

分 类 号：TU528.53[建筑科学—建筑技术科学]