钢骨混凝土构件极限扭矩的组合计算法

Combination calculation method for limit torque of steel reinforced concrete member

对钢骨混凝土构件极限扭矩的计算提出另一种叠加方法——组合计算法。采用ABAQUS软件对构件进行数值模拟,通过三组构件的有限元模拟分析来验证组合法的准确性。利用钢管混凝土构件、箱型混凝土构件和钢骨混凝土构件的极限扭矩初步验证了组合法的准确程度与适用范围。结果表明组合法较适用于内部型钢处于有效保护层厚度内的钢骨混凝土构件。

In this paper, another superposition method for limit torque calculation of steel reinforced concrete member-the combination calculation method was proposed. The ABAQUS software was used for numerical simulation of the structural member, and the accuracy of the combination method was verified through the finite element simulation analysis of three groups of structural members. The accuracy degree and application scope of the combination method were verified preliminarily by using the limit torque of concrete filled steel tubular members ,box concrete members and steel reinforced concrete members. The results show that ,the combination method is applicable for the steel reinforced concrete members of which the internal section steel is in effective protection thickness.