有初始缺陷的结构弹性大变形刚度方程  

The Stiffness Equations for Large Deformation of Elastic Structures With Initial Imperfections

作　　者：李丽娟[1] 梅占馨[1] 

机构地区：[1]西安冶金建筑学院建筑工程系

出　　处：《西安冶金建筑学院学报》1993年第1期67-71,共5页

摘　　要：本文将结构的初始几何缺陷视为初始位移,导出了具有初始缺陷的几何非线性问题的两种刚度方程,可用于一般的有初始缺陷的非线性弹性问题求解及其稳定性分析,也可用于分析结构局部缺陷对其整体特性及反应的影响.文末给出了算例.Two kinds of stiffness matrix equations of nonlinear problems with initial imperfections are presented while the initial geometrical imperfections are considered as initial displacements.The equations are useful for the solution of nonlinear elastic problems and buckling analysis with imperfections,and can also be used to analyzed effect of local imperfections on the whole characteristics and response of structures.

关 键 词：结构分析 弹性变形 刚度 初始缺陷 

分 类 号：TU311.2[建筑科学—结构工程]