摘要
冷弯型钢板件相关屈曲的精确计算十分复杂。本文基于盈亏相抵的概念导出板件约束系数的近似计算公式,比已有公式简便。经过矩形管短柱试验数据的分析,加上其他截面的现成资料,可知板件在屈曲后仍然存在相关性,确定受压极限承载力时应该计及这种相关性。
The accurate calculation of interactive buckling of plate elements in cold-formed sections is quite complicate. Based on the concept of balance between gain and loss, approximate formulas for coefficient of restraint simpler than existing ones are obtained and presented in this paper. Analysis of test data of RHS stub columns, in addition to those of U and C sections, reveals that interaction between plate elements still exists in the post-buckling stage, and that it should be taken account of in determining the ultimate compressive capacity.
出处
《建筑钢结构进展》
2002年第1期3-6,共4页
Progress in Steel Building Structures
关键词
冷弯型钢
板件屈曲
相关屈曲
约束系数
屈曲后承载力
Cold-formed sections
Plate buckling
Interactive buckling
Coefficient of restraint
Post-buckling capacity
