作　　者： ; ; ;

机构地区： 华南理工大学土木与交通学院土木工程系

出　　处： 《计算力学学报》 2005年第5期629-632,共4页

摘　　要： 论述了张拉膜结构力密度法混合找形的基本理论;所谓力密度法混合找形,即部分单元力密度控制,部分单元弹性控制;力密度控制采用线性求解,弹性控制采用非线性求解,通过迭代计算混合找形求出各结点的坐标值。据此编制了相应的计算软件;对工程实例进行了验算,结果表明,本文给出的计算结果与德国著名软件easy的计算结果相吻合。 In this paper, the fundamental theory of mixed form-finding method of membrane structures is discussed. The mixed form-finding method is developed on the basis of the force-density method. Some elements are force-density controlled, and the other elements are elastic controlled. The solutions of the former are obtained by use of the linear method, and the solutions of the latter are nonlinear. The corresponding computational programs are accomplished and the computations of practical examples are done. The coordinates of all points are in agreement with the results obtained by using EASY, the famous membrane structure program.

关 键 词： 膜结构 力密度法 混合找形 弹性控制

领　　域： [建筑科学]