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冷弯薄壁圆钢管轴压构件稳定性设计直接算法
袁健1, 2,黄太华1,蒋沧如2
摘 要

(1 中南林业科技大学土木建筑与力学学院,长沙 410004;2 武汉理工大学土木工程与建筑学院,武汉 430070)
[摘要]通过对冷弯薄壁圆钢管的截面特点进行分析,针对轴压构件所用钢材级别及柔度范围的不同,分别推导了近似柔度λ0的计算公式。该公式简捷直观,能避免繁琐的试算过程,可直接计算出满足稳定性要求的截面尺寸,使设计结果更趋合理。
[关键词]冷弯薄壁型钢;圆钢管;轴压构件;稳定性设计
Direct calculation method for stability design of circular cold-formed thin-wall steel tube under axially compressive force
Yuan Jian1, 2,Huang Taihua1,Jiang Cangru2 (1 School of Civil Engineering and Mechanics, Central South University of Forestry & Technology, Changsha 410004, China;2 School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China)
Abstract:Based on analyzing the cross-sectional characteristic of circular cold-formed thin-wall steel tube, formulas that can avoid repeated trial-calculation process were derived, which were applied to calculate approximate compliance (λ0) of different material and compliance ranges, and then the cross-sectional dimension meeting the requirement of stability design can be calculated directly. The calculated examples show that this method is simple and the design results are reasonable.
Keywords:cold-formed thin-wall steel; circular steel tube; members under axially compressive force; stability design
作者简介:袁健,硕士,Email:yuanjian0571@tom.com。
参考文献
[1]张耀春,周绪红.钢结构设计原理[M].北京:高等教育出版社,2004.
[2]GB50018—2002 冷弯薄壁型钢结构技术规范[S].
[3]孙训方主编.材料力学[M].北京:高等教育出版社,2002.
[4]范钦珊主编.材料力学[M].北京: 高等教育出版社,2005.

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