平面钢框架结构的几何与材料非线性分析

Geometrical and Material Nonlinear Analysis of Plane Steel Frames

本文采用有限变形理论及内力屈服面塑性流动理论对平面钢框架的极限承载力进行了弹塑性大变形全过程分析.完成了4榀平面钢框架结构的极限承载力试验.试验与理论分析结果符合良好.

A nonlinear analysis metchod, based on nonlinear continuum mehanics and stress-resultant yield surface plastic flow rule,is successfully applied to the large deformation elasto-plastic analysis of the ultimate strength of plane steel frames. 4 plane steel frames were tested. The comparison of the theoretical predictions with the experimental results verifies that the theoretical method derived in this paper has very high precision and efficiency.