Ⅰ形截面钢构件腹板屈曲后强度利用  

Utilizing of Web Post-buckling Strength in I-section Steel Members

作　　者：陈绍蕃[1] 

机构地区：[1]西安建筑科技大学,规程编制组成员710055

出　　处：《建筑结构》1998年第8期15-18,共4页Building Structure

摘　　要：介绍轻型门式框架I形截面钢构件腹板的设计原则和方法.首先从防止受压翼缘压入腹板来分析腹板高厚比的最大限值,其次分别论述腹板受剪屈曲后的极限剪力计算、受弯或压弯屈曲后有效宽度的确定,以及正应力和剪应力联合作用下屈曲后相关关系的计算.Design principle and procedure of web plate in I-section Members of light steel portal frames are given in this article. Maximum width-thickness ratio of web plates to prevent the compression flange from buckling into the web is first discussed. Afterwards, post-buckling strength of webs subject to shear and normal stresses separately or simultaneously are treated.

关 键 词：腹板 宽厚比 屈曲 强度 有效宽度 钢构件 

分 类 号：TU392.401[建筑科学—结构工程]