摘要
基于有限元分析 ,提出空间结构变更后的新算法。该法将杆件撤除视为原结构上施加了关联荷载 ,不需重建并分解总刚 ,重新求解方程组 ,大大减少计算量。文中导出求关联荷载的一般算式。
A new computing method of structures variation is presented in this paper on the basis of finite element analysis. In this method the removal of a member is treated as adding the relative load applying to the original structure, the displacement and the internal force redistribution can be computed without modifying the global stiffness matrix and rebuilding the solution equation. The computation rate of using the new method is faster in time than that of using the traditional method by squares. The general computing formula of the relative load is given.
出处
《工业建筑》
CSCD
北大核心
2002年第1期77-79,共3页
Industrial Construction
关键词
杆系结构
关联系数
空间结构
关联荷载
member\ the structure of members\ structural variation\ relative coefficient
