(天津大学建筑工程学院， 天津 312000)

［摘要］基于有限元分析程序ABAQUS，对薄壁方钢管混凝土轴压柱力学性能进行非线性有限元分析。采用混凝土塑性损伤模型，讨论了薄壁方钢管混凝土短柱三维非线性分析的建模方法和模型参数取值,并研究了其破坏特征、受力性能、应力和应变特点等，并与试验结果以及理论结果对比，验证了有限元模拟结果的可靠性。

［关键词］ABAQUS； 混凝土塑性损伤模型； 带肋方钢管混凝土； 轴压

中图分类号： TU398    文献标识码： A    文章编号： 1002-848X(2015)S2-0456-05

Study on mechanical behavior of concrete-filled thin-walled steel tubes columns based on ABAQUS

Hu Jiajie, Chen Zhihua

(Construction Engineering College， Tianjin University, Tianjin 312000, China )

Abstract: Based on finite element software ABAQUS, the performance of concrete-filled thin-walled steel tubes (CFST) columns on the axial compression was analyzed. By using plastic model of concrete damage in ABAQUS, the modeling method and parameter about 3D nonlinear analysis of CFST were discussed; the failure mode and the stress-strain characteristics were studied. Compared with the experimental and theoretical results, the reliability of the finite element simulation results was proved.

Keywords: ABAQUS; plastic model of concrete damage; SCFTST; axial compression

作者简介：胡佳杰，学士，Email：405936122@qq.com。