空间钢框架结构弹塑性稳定的综合离散分析法

The Inelastic Stability of Space Steel Frames by Synthetic Discrete Method

本文采用综合离散化分析方法进行空间钢框架结构的弹塑性稳定计算。该方法既采用了有限元法处理离散结构的便利,又通过力学途径来减少所需求解的未知量。算例结果表明,本文方法不仅有很高的计算精度,且省时省空间,是一种空间钢框架结构稳定分析的实用方法。

A synthetic discrete method is presented for the analysis of the inelastic stability of space steel frames. The method not only possesses the FEM advantages for discrete structures, but also reduces the unknowns in structural analysis. Numerical results show that this method can greatly reduce the time of computation and has satisfactory precision. In view of the aboveadvantages, this method can be used effectively in the analysis of the elastoplastic stability of space steel frames for the engineering design.