摘要
对薄壁卷边槽钢梁的翼缘、腹板、卷边的相关屈曲进行了有限元分析，对卷边的合适宽度提出了建议值。分析表明，当卷边槽钢受弯时腹板对受压翼缘屈曲有较强的嵌固作用，常用截面内受压翼缘的屈曲系数可达到３．８以上。现行《冷弯薄壁型钢结构技术规范》（ＧＢＪ１８—８７）中不分轴压和弯曲笼统采用１．３５是不合理的。
Finite element method is applied to analyse the interaction of local buckling in lipped channelsunder bending. Due to the strongly restraint provided by the web, the buckling coefficient of compressionflanges can be attained more than 3. 8 for general lipped channels, so the buckling coefficient 1. 35 adoptedby the current specification GBJ18-87 is not reasonable for bending members.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
1996年第1期14-18,23,共6页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
基金
冶金工业部教育司有偿资助
关键词
卷边槽钢
薄壁
梁
腹板
翼缘
相关屈曲
lipped channel
interaction of local buckling
finite element method
bending member
