【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。更多还原

【Abstract】 In this paper,the fundamental theory of mixed formfinding method of membrane structures is discussed.The mixed form-finding method is developed on the basis of the force-density method.Some elements are forcedensity 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.更多还原