摘要
通过对不同屋面组成、不同跨度和不同支承位置的4种形式的三层网架进行优化分析、求得了在给定条件下的最优网格尺寸和网架高度。通过二层与三层网架的对比计算分析、提出了三层网架的适用范围。
The optimum Design of four types of triple-layer grids is analysed based on the triple-layer grids with different long-short span ratios,dif- ferent supporting conditions and different composition of roof systems.The optimum grid sizes and the optimum grids heights are presented under the given conditions.The applied range of triple-layer grids is presented by c- omparing the triple-layer grids with the double-layer grids.
