摘要
运用层模型能量法研究了有侧移框架弹性屈曲,根据框架失稳模式和边界条件,选择合适的位移函数,采用Timoshenko梁理论,建立结构总势能方程,利用势能驻值条件求解结构弹性失稳临界荷载,能量法简单实用,精度很高。
The principle of potential energy based on story model is used to study the buckling load of sway frames. According to the deformation and boundary conditions, a deflection mode is selected to represent frame lateral deflection. Timoahenko beam theory which is capable of reflecting shear and flexural deformation is applied to derive the structural total potential energy, and the approximate solution of the stable sway frame structures under critical loadings is obtained by potential energy stationary conditions. The present method is simple and high precision.
出处
《山西建筑》
2007年第20期6-7,共2页
Shanxi Architecture
关键词
有侧移框架
层模型
能量法
弹性屈曲荷载
sway frames, story model, energy method, elastic critical load
