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 (天津大學(xué)建筑工程學(xué)院， 天津 312000)

［摘要］基于有限元分析程序ABAQUS，對薄壁方鋼管混凝土軸壓柱力學(xué)性能進(jìn)行非線性有限元分析。采用混凝土塑性損傷模型，討論了薄壁方鋼管混凝土短柱三維非線性分析的建模方法和模型參數(shù)取值,并研究了其破壞特征、受力性能、應(yīng)力和應(yīng)變特點等，并與試驗結(jié)果以及理論結(jié)果對比，驗證了有限元模擬結(jié)果的可靠性。

［關(guān)鍵詞］ABAQUS； 混凝土塑性損傷模型； 帶肋方鋼管混凝土； 軸壓

中圖分類號： TU398    文獻(xiàn)標(biāo)識碼： A    文章編號： 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

作者簡介：胡佳杰，學(xué)士，Email：405936122@qq.com。