三角形空间格构式刚架平面外稳定的实用算法

Practical checking computation for out-plane stability of spatial latticed frame with triangular section

截面为三角形的轻型空间格构式刚架的平面外整体稳定性是设计中必须考虑的问题.本文从结构的全过程分析着手,考虑了几何非线性,经过大量的计算机分析,对这种结构体系的整体稳定性能进行了研究,并通过对所得数据的归纳和与等效实腹式刚架的比较,提出了一个简便可行的稳定验算方法,且通过算例演示了该实用算法.

The general out-plane stability of light-gauge spatial latticed frame with triangular section must be taken into consideration at the design stage. The stability of this structure was studied through the general deformation path analysis which takes into account the geometrically non-linear problems and through a lot of computation, a simple and feasible stability check method is proposed for the analysis of data gathered and the comparison with the equivalent solid-web frame. The application of this method is illustrated with a typical example.