输电线顺线路方向风荷载及分配模式

沈国辉,包玉南,郭勇,宋刚,王轶文

Along-line wind loads and distribution patterns of transmission lines

Guo-hui SHEN,Yu-nan BAO,Yong GUO,Gang SONG,Yi-wen WANG

表 2 各国规范中的输电线风荷载计算方法

Tab.2 Calculation methods of wind loading of transmission line in criteria of various countries

规范 体型系数 面积 横线路分配系数 WY DL/T 5551-2018 1.0或1.1 dLp sin2 θ 0.25WX DL/T 5154-2012 1.1或1.2 dLp sin2 θ 0.25WX IEC60826-2003 1.0 dL sin2 θ – ASCE74-2009 1.0 A cos2 ψ – EN 50341-1: 2001 1.2 dL cos2 ϕ – JEC127-1979 1.2 A sin2 θ –