摘要
单轴对称的角钢、Ｔ型钢压杆有必要做弯扭屈曲验算。计算方法宜采用换算长细比法。利用截面特性的近似值得出单角钢和双角钢构件的实用计算公式。这些公式虽然由弹性稳定理论导出，和非弹性范围内的试验结果也吻合较好。此外，通过对计算结果的分析，建议长细比不大的构件不宜用宽厚比大的型钢规格。
Struts of monosymmetric section built with angles and cut-Ts need to be checked on flexural-torsional buckling. The approach of equivalent slenderness ratio is recommended for calculation purpose. Using approximate section properties, practical formulas are derived for single and double angle sections. Although basing on the theory of elastic stability, these formulas agree well with test results in inelastic range as well. Furthermore, through analysis of calculation results, it is recommended to limit the width-thickness ratio for members of small slenderness.
出处
《钢结构》
2000年第4期47-49,27,共4页
Steel Construction
关键词
角钢
T型钢
弯扭屈曲
宽厚比
薄壁型钢结构
angle cut-T section strut flexural-torsional buckling stability width-thickness ratio
