轴力和弯矩共同作用下铸钢空心球节点承载力的有限元分析  

THE ELASTIC-PLASTIC FEM ANALYSIS OF CAST STEEL HOLLOW SPHERICAL JOINTS SUBJECTED TO AXIAL FORCE AND MOMENT

作　　者：张向荣[1] 杨明杰[1] 杨怡[1] 

机构地区：[1]中国中元国际工程公司,北京100089

出　　处：《工业建筑》2008年第z1期543-545,458,共4页Industrial Construction

摘　　要：对铸钢空心球节点在不同的轴力和弯矩组合作用下的承载力进行了弹塑性有限元分析,得出了节点的塑性发展过程及极限承载力;并基于冲切面剪应力破坏模式推导了轴力和弯矩共同作用下的铸钢空心球节点承载力计算公式。The elastic-plastic FEM analysis of bearing capacity of cast steel hollow spherical joints under different load combinations of axial force and moment is performed,the plastic development process and ultimate bearing capacity of cast steel hollow spherical joints under load combinations of axial force and moment are obtained.The bearing capacity formula of cast steel hollow spherical joints under load combinations of axial force and moment is also derived,based on the punching shear failure model.

关 键 词：铸钢空心球节点 非线性有限元分析 极限承载力 

分 类 号：TU391[建筑科学—结构工程]