两种正放四角锥体网架内力分析

Analysis on Internal Force of Two Spatial Square Pyramid Grid

针对正放四角锥体网架中的下弦正交正放和下弦正交斜放两种常用形式进行静力计算分析,结果表明:下弦正交斜放形网架上下弦内力分布更为均匀,且上下弦及腹杆用钢量更省.

Based on two spatial square pyramid grid with orthogonal bottom chords and diagonal bottom chords,the calculation analysis of the internal force is carried out.The results show that the internal force distribution of spatial square pyramid grid with diagonal bottom chords is more uniform,and the diagonal grid＇s steel quantity of chord members and web members is less.