摘要
利用ANSYS软件提供的钢结构屈曲计算的特征值和非线性2种方法,对无加强肋和有加强肋的变截面箱形支腿梁进行特征值和非线性分析,得到其失稳极限载荷及失稳形式,得出该变截面梁在不断增加的压力作用下,将由局部屈曲发展到整体屈曲和结构初始缺陷对屈曲的影响趋势等结论。
Eigenvalue and nonlinear methods provided by ANSYS are used to analyze variable section box girder with and without strengthened ribs, obtaining maximum buckling load and buckling mode. It is concluded that the girder will experience developing from local buckling to overall buckling with the force increasing, andthat inertial defects have some influence on buckling occurrence.
出处
《起重运输机械》
北大核心
2008年第9期65-67,共3页
Hoisting and Conveying Machinery
关键词
轮胎起重机
稳定性
特征值
分析
robber tyred crane
stability
eigenvalue
analysis
