火曲角钢极限承载力的一种简化分析方法.doc

文档介绍：
火曲角钢极限承载力的一种简化分析方法
张晓志1,李子欣2*
(1. 东北电力大学建筑工程学院,吉林市,132012;
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2. 东北电力大学研究生部,吉林市,132012)
摘要:采用相应的单侧偏心受压杆件模型,对通过火曲以达到连接构造要求的角钢的极限承
载力进行简化分析,重点研究了火曲偏移量即偏心距同杆件极限承载力之间的关系。研究结
果表明:火曲偏移量使角钢杆件的极限承载力出现明显下降;火曲偏移量越大,杆件实用临
界荷载下降幅度越大。研究结果对与火曲角钢相关的钢结构设计,有工程参考意义。
关键词:角钢;火曲;单侧偏心受压;实用临界荷载
中图分类号:TM753
A Simplified Analysis Method for Ultimate Bearing
Capacity of Bend Angle Steel
ZHANG Xiaozhi1, LI Zixin2
(1. School of Architecture engineering,Northeast Dianli University,Jilin 132012,China;
2. School of Graduate,Northeast Dianli University,Jilin 132012,China)
Abstract: By using the corresponding unilateral eccentric of pression member model,The
analysis for the ultimate bearing capacity of the angle steel, which is bended in order to achieve
construction requirements, was simplified. And it mainly studied the relationship between offsets
of angle steel bend, namely eccentricity, and its ultimate bearing capacity. The results show that:
the offsets of angle steel bended make the ultimate bearing capacity marked decline; The greater
of the offsets of angle steel bended, the greater decline about its practical critical load. The
research results have the engineering significance in the steel structure design, particularly related
to the angle steel bend.
Key words: Angle steel; Bend; Unilateral pression; Practical critical load
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