基于ABAQUS有限元模拟的钢管失效研究

刘晓庆; 李君君

doi:10.15980/j.tzzz.2018.10.007

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基于ABAQUS有限元模拟的钢管失效研究
Failure of Steel Tube Based on ABAQUS Finite Element Simulation
2018年38卷第10期页码：1068-1071
纸质出版日期： 2018 ，
DOI： 10.15980/j.tzzz.2018.10.007

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[1]刘晓庆,李君君.基于ABAQUS有限元模拟的钢管失效研究[J].特种铸造及有色合金,2018,38(10):1068-1071.

Liu Xiaoqing, Li Junjun. Failure of Steel Tube Based on ABAQUS Finite Element Simulation[J]. Special Casting & Nonferrous Alloys, 2018,38(10):1068-1071.
[1]刘晓庆,李君君.基于ABAQUS有限元模拟的钢管失效研究[J].特种铸造及有色合金,2018,38(10):1068-1071. DOI： 10.15980/j.tzzz.2018.10.007.

Liu Xiaoqing, Li Junjun. Failure of Steel Tube Based on ABAQUS Finite Element Simulation[J]. Special Casting & Nonferrous Alloys, 2018,38(10):1068-1071. DOI： 10.15980/j.tzzz.2018.10.007.

摘要

采用不同的解析方法对钢管混凝土柱进行轴向及弯矩载荷计算

并借助ABAQUS有限元软件分析了方形、圆形、六边形截面的钢管混凝土在偏心载荷作用下的荷载-位移关系和应力分布情况。结果表明

圆形截面钢管混凝土承载力最大

可承载1 800kN;六边形截面钢管混凝土应力集中部位分散

具有较优良的综合性能

能显著降低应力集中。解析方法计算结果与有限元模拟结果符合

因此

轴向偏心载荷模型可为钢管混凝土结构的设计及校核提供参考。

Abstract

The axial and moment loads of concrete-filled steel tubular columns were calculated by different analytical methods

and the load-displacement relation and stress distribution of concrete-filled steel tube with hexahedral

square and circular loading section were analyzed by means of ABAQUS finite element software.The results show that the bearing capacity of concrete-filled steel tube with circular section is the largest of 1 800 kN.The stress concentration of concrete filled steel tube with hexagonal section is dispersed with a better comprehensive performance

which can reduce significantly the risk of material failure caused by stress concentration.The analytical results are in agreement with the finite element simulated ones

so that the axial eccentric load model can be provided for a reference for the design and verification of concrete-filled steel tubular structures.