偏心侧向支撑轴压柱的屈曲承载力的一般讨论  

A GENERAL DISCUSSION ON THE BUCKLING CAPACITY OF THE ECCENTRICALLY BRACED COLUMN

作　　者：朱明[1] 白友忠[1] 赵亮[1] 张青云[1] 

机构地区：[1]西安建筑科技大学,西安710055

出　　处：《钢结构》2013年第6期27-30,67,共5页Steel Construction

摘　　要：对设置有偏心支撑的轴压构件,采用瑞利里兹法研究其偏心距大小对构件屈曲承载力的影响。经讨论发现,对于双轴对称截面的轴压构件,侧向支撑存在偏心时会降低其屈曲承载力,产生不利影响;相反对于单轴对称的截面,支撑的偏心却能够提高轴压柱子屈曲时的承载力。This paper is about the effect of the eccentricity on the column by using the Rayleigh-Ritz method . It is found that the eccentricity of the support could reduce the buckling capacity of the column with a doubly symmetric section. Otherwise the eccentricity of the support could improve the buckling capacity of the column with a single symmetrical section.

关 键 词：轴心受压 压杆 偏心支撑 屈曲 

分 类 号：TU391[建筑科学—结构工程]