变截面柱及型钢格构柱的屈曲载荷分析  

Buckling Load Analysis of Variable Section Column and Steel Lattice Column

作　　者：肖珍 陈宇东 李政 赵恒 XIAO Zhen;CHEN Yudong;LI Zheng;ZHAO Heng(School of Intelligent Building,Changde College,Changde 415000,Hunan,China;Jiangsu Sinosteel Construction Engineering Co.,Ltd.,Taizhou 214500,Jiangsu,China)

机构地区：[1]常德学院智能建筑学院,湖南常德415000 [2]江苏中钢建设工程有限公司,江苏泰州214500

出　　处：《工程与试验》2024年第2期12-14,共3页Engineering and Test

基　　金：国家自然科学基金青年基金项目(52008164);湖南省教育厅项目(HNJG-2022-1365);湖南省一流本科课程《工程力学》(湘教通[2021]28号文件)。

摘　　要：采用参数变换研究了变截面柱及型钢格构柱的屈曲载荷问题,得到了变截面柱及型钢格构柱的屈曲模态。根据边界条件推导出了确定屈曲载荷的特征方程,解此特征方程即可求得屈曲载荷。与Bessel函数法相比,参数变换法不但计算过程简便,而且计算精度也较高。The parameter transformation method is used to study the buckling load of variable section column and steel lattice column,and obtain the buckling modes of variable section column and steel lattice column.According to the boundary conditions,the characteristic equation to determine the buckling load is derived,and the buckling load can be obtained by solving the characteristic equation.Compared with the Bessel function method,parameter transformation method is more simple and has high accuracy.

关 键 词：变截面 格构柱 参数变换 屈曲载荷 

分 类 号：O341[理学—固体力学]