侧向支撑压杆弹性屈曲的样条函数解法  

Spline Function Solution for the Elastic Buckling Loads of Lateral Bracing Columns

作　　者：黄政华[1,2] 张其林[1] 季俊[1] 周丽霞[2] 

机构地区：[1]同济大学建筑工程系,上海200092 [2]贵州大学土木建筑工程学院,贵州贵阳550003

出　　处：《贵州大学学报（自然科学版）》2009年第3期116-119,共4页Journal of Guizhou University:Natural Sciences

摘　　要：工程结构中许多结构构件的受力可以简化为侧向弹簧支撑的压杆,应用基于样条函数的能量法求解弹簧支撑压杆的弹性屈曲临界荷载,由势能驻值原理推导了临界荷载的特征方程。算例表明,该方法未知量少,求解过程简洁,且精度较高。Many components in structures can model as lateral spring bracing columns, the paper solves the elastic buckling loads of bracing columns by spline function energy method, and derive the eigenvalue equations by using the principle of stationary total potential energy. Numerical examples show that the method have the advantage of less vectors, simplify and precision.

关 键 词：弹簧支撑 压杆 样条函数 弹性屈曲 势能驻值原理 

分 类 号：TU311[建筑科学—结构工程]