摘要
本文应用势能原理,讨论薄壁杆件的剪力滞后现象。导出以截面横向位移和节点纵向位移为未知量的有限元法的基本方程。算例表明,本方法计算量少,精度高,特别适用于分析高层建筑和桥梁结构。
In this paper, based on the principle of potential energy the shear lag phenomena of thin-walled members is discussed. Taking the lateral displacement of the cross section and the longitudinal displacement of nodes as the basic variables the finite element analysis of thin-walled member structures is formulated. Numerical examples show that quite good results can be obtained. The proposed method is particularly suitable for the analysis of tall buildings and bridge structures.
出处
《工程力学》
EI
CSCD
1993年第1期76-84,共9页
Engineering Mechanics
关键词
剪切滞后
薄壁杆件
剪切变形
Shear lag, principle of potential energy,thin-walled member
