箱形钢柱插入式拼接节点受力性能研究

Mechanical performance of plug-in splicing joints of steel box column

以一种箱形钢柱插入式拼接节点为研究对象,在合理选择节点判断标准、材料本构关系等基础上,运用有限元软件ABAQUS对BASE试件进行单调加载作用下的受力性能分析。在此基础上通过改变轴压比、内套管长度、内套管厚度、法兰板厚度及螺栓预拉力等参数,得出不同参数背景下节点的力学性能。分析表明:在装配式钢结构柱连接中,插入式拼接节点是一种方便、可行的连接方式。

The box-shaped steel column plug-in splicing joints are studied using ABAQUS finite element simulation. On the basis of reasonable selection of node judgment criteria and material constitutive relationship,the mechanical performance of the BASE specimen is analyzed under monotonous loading. Then,by changing parameters such as axial force ratio,inner tube length,inner tube thickness,flange plate thickness and pre-tension bolts forces,the mechanical properties of joints under different parameters are obtained. The analysis shows that,the plug-in splicing joint is convenient and feasible for the column connection of assembled steel structure.