内容介绍：钢管轴向承载力自动计算表截面类别 a1 a2 a3k λ n ≤0.215a类 0.41 0.986 0.152 长细比λ 6.80052491 1.0024586 0.997808358 0.997808358c类b类λn≤1.05 λn＞1.050.65 0.730.965 0.906 1.2160.3 0.595 0.302屈服强度f y235弹性模量E 206000中间计算值0.99227