空间钢框架弹塑性稳定分析的一种数值方法  

A Numerical Method for Analysing Elasticoplastic StabiIity of Three-Dimellsional Steel Frames

作　　者：欧阳煜[1] 

机构地区：[1]华侨大学土木工程系,泉州362011

出　　处：《华侨大学学报（自然科学版）》1997年第3期254-259,共6页Journal of Huaqiao University(Natural Science)

摘　　要：采用杆系有限元对空间钢框架结构进行整体稳定分析，并推导出空间塑性较单元稳定刚度矩阵．本法可适用于任意形式的空间框架结构，并能给出结构的荷载位移曲线，所获得的数值结果与有关实验数据吻合得较好．A global stability analysis of three-dimensional frame structures is conducted on member systems by finite element method; and a stable stiffness matrix is derived for the space plastic hinge element. The method will be suited to space frame structure of any state, and the load displacement curve of which will be given. The numerical results tally with experimental data.

关 键 词：钢结构 稳定分析 极限荷载 框架 弹塑性 弹塑性 

分 类 号：TU391.01[建筑科学—结构工程]