摘要
通过对不同支承条件不同边长比的七种形式的六十二种三层网架进行静力特性研究,得出了三层网架内力、反力及位移的分布规律。讨论了三层网架的边桁架及中层弦杆的作用。提出了不同条件下三层网架的选型问题。
The static behaviou of seven types of triple-layer grids is analysed based on the sixty-two kinds of triple-layer grids with different long-short span ratios and different supporting conditions. The distribution of the internal forces, the reaction and the displacement is presented The function of the edge-bracing and middle-layer chord is discussed.The Problem of the type-seleting of the triple-layer grids with different conditions is presented.
关键词
网架结构
静力分析
选型
三层网架
grids structure
middle-layer chords edge bracing
type-selecting
