钢框架弯矩作用平面内弹塑性稳定试验研究

A test study on the inelastic steel frame in plane stability

通过钢结构框架在弯矩作用平面内的稳定性实验，对框架的稳定性能进行了研究．实验证明，二阶弹塑性分析较好地反映了框架的受力及变形过程，框架中的“ＰΔ”效应在弯矩中占很大比例．据此，对现行设计方法进行了讨论，提出了改进意见．

In this paper,using the in plane stability test results on the inelastic steel frame,the stability behavior of frames in studied.The test results also prove that the second order inelastic analysis is a better method of dertming the ultimate capacity of frames and the PΔ moment is an important portion of bending moment in frames.Hence some disscussions and suggestion on the frame design are pressented.