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一前言网架用作较大跨度空间的屋盖结构是比较适用的,它经常是可以预制成种类不多的构件[甚至是完全相同的单一构件],经现场节点拼装而完成整个的空间结构。网架内力和位移的精确解,是以各个节点为参考系,建立节点上的静力平衡方程式和相关节点间的构件形变相容方程式,列出多元线性方程组或矩阵方程,再结合周界的边界条件求出相应的特解。
A foreword The use of a grid structure as a roof structure with a relatively large span is suitable. It is often possible to prefabricate a few types of components [even identical components], and to complete the entire space through assembly of field nodes. structure. The exact solution of the internal forces and displacements of the grid is based on each node as a reference system, establishing the static equilibrium equations at the nodes and the component deformation compatible equations between related nodes, listing multiple linear equations or matrix equations, and then combining the perimeter The boundary conditions are found for the corresponding special solution.