【摘要】 应用非线性有限元位移法，推导了悬索结构的几何非线性有限元方程。通过由平面将控制点移动到设计给定的几何位置，寻求了一个与给定预应力值分布及结构几何控制参数相对应的平衡的形状，建立了一种悬索结构的初始形状确定分析方法。算例结果表明提出的方法是可行、实用的。更多还原

【Abstract】 In this paper, the geomertic nonlinear finite element equations of cable structures are conductedl through the use of nonlinear finite element displacement method. The control points are moved from a plane to the given geometric position, and then the form balancing the given prestress distribution and the geometric control parameters of the structure is found. In this way an initial form-finding; analysis of the cable structure is developed. The sample results demonstrate that the method described above is practicable and practical.更多还原