钢管再生混凝土柱承载力非线性有限元分析

Nonlinear Finite Element Analysis of the Bearing Capacity of Recycled Aggregate Concrete-Filled Steel Tube Column

利用非线性有限元分析软件ABAQUS,选择合理的材料本构关系模型,确定单元类型、界面接触、边界条件及网格划分,建立轴压钢管再生混凝土柱有限元模型,结果表明,模型计算极限承载力和应力-应变关系曲线与试验值吻合较好,有限元模型可较好的运用于工程实践中。

Using finite element analysis software ABAQUS, choose the reasonable constitutive relation selection, element type determination, interface processing and net division, established the nonlinear finite element calculation model of recycled aggregate concrete - filled steel tube column under axial compression, the test result show that the finite element calculation conclusions of ultimate bearing capacity and stress - strain curve agree well with the test results, which can used in engineering practice.