几何可变杆系结构的形状分析  

Shape Analysis of Geometrically Changeable Structures

作　　者：程万海[1] 钱志伟[1] 

机构地区：[1]天津大学建筑工程学院,天津300072

出　　处：《建筑结构学报》2002年第2期70-74,共5页Journal of Building Structures

摘　　要：本文提出了一个几何可变结构形状分析的新方法。先将结构形状分析归结为一个最优化问题,再用Gram-Schmit法,逐步缩小目标函数值,最终求出结构的平衡位置。文末给出了此法在折叠结构和受力结构中的算例。In this paper,a new method for shape a nalysis of geometrically changeabl e structures has been presented.First,the shape analysis problem is changed into a mathematical optimum model.The Gram-Schmit method is use d to reduce the target function value.Then the result shape corresponding to the minimum value is obtained.The nu merical examples show that this method can be used to find the shape of both unstabl e structures and foldable structure s.

关 键 词：结构形状分析 几何可变结构 折叠结构 杆系结构 

分 类 号：TU323[建筑科学—结构工程]