摘要
应用ANSYS有限元程序,对柱脚铰接的平面门式刚架进行了静力屈曲分析。在仿真分析中,主要考虑荷载分布和初始几何缺陷的大小对刚架临界屈曲荷载的影响。分析结果表明:刚架的临界屈曲荷载和荷载的分布有关;初始几何缺陷对刚架临界屈曲荷载的影响随着刚架高跨比的变化而不同。
The static buckling of the in-plane portal frame that the column is hinged is studied by using the ANSYS program.In the simulation,the forms of the load acting on the frame and the initial geometric-imperfection are mainly considered. The results indicate that the critical buckling load of portal frame is related to the distribution of the load;the influence of the initial geometric-imperfection on the buckling load of the portal frame is different with the ratio of depth to span.
出处
《工业建筑》
CSCD
北大核心
2009年第S1期491-493,612,共4页
Industrial Construction
基金
国家自然科学基金(10772129
10702047)
山西省自然科学基金(20063006)
关键词
门式刚架
屈曲荷载
初始几何缺陷
portal frame
buckling load
initial geometric-imperfection
