拉索预应力网壳结构的优化设计

OPTIMIZATION DESIGN OF PRESTRESSED LATTICE SHELL STRUCTURE

预应力网壳结构是一种新型空间结构 ,它将预应力技术引入空间钢结构 ,拓展了预应力技术的应用范围。首次提出利用数学规划 ,解决在给定结构布局和布索方案的前提下求解空间网格结构最佳预应力值的方法 ,解决了这一技术的关键问题 ,并参照工程实际 ,提出了预应力度的合理取值。

The prestressed lattice shell structure is a kind of a novel space structure in which the prestress technique was introduced into space steel structures,thus the using range of the prestress technique is widened.The method of calculating the value of proper prestress is given for the first time according to the arrangement of cable and the type of space structure with the method of linear program and this is the key problem in this new technique.