摘要
本文研究单轴对称截面轴心压杆,在跨中受扭转及斜平面内的偏心侧向约束时的屈曲理论.作为应用,本文分析了K型支撑的输电线塔主角钢压杆的折算计算长度,结果表明.有关规范的计算长度算法并非适用于所有情况。本文提出了修改建议.
This paper studies the buckling of monosymmetric section column which is torsionally restrained and laterally braced in a nonprincipal axis direction at its midheight.As an application of the theory,the K—braced angle leg members in the transmission tower are analysed.It is found that the current specification rule on the effective length of these members is not widely applicable and will lead to unsafe results in some cases.More accurate and more widely applicable formulas is put forward in the paper.
关键词
支撑
压杆
屈曲
角钢
brace
buckling
angle/transmission tower
effective length
compression member
