05JB1-15大风工况最大档距L风速V (m/s)风压不均匀系数a导线的体型系数μsc导线外径d (m)风向与导线的夹角 θ(度)RADLANSθsin θ2sin θ导线风压高度变化系数μz1地线风压高度变化系数μz2OPGW风压高度变化系数μz3电杆风压高度变化系数μz4W0=V2/1600 (KN/m2)导线受力WX1=a LdμscμzW0 sin 2θ (kN)地线\\OPGW的体型系数μscOPGW外径d(外径12.5mm) (m)地线外径d(地线外径7.5mm) (m)地线受力WX3=a LdμscμzW0 sin 2θ (kN)OPGW受力WX4=a LdμscμzW0 sin 2θ (kN)地面到杆顶的距离H地线到地面的距离h1导线到地面的距离h2OPGW到地面的距离h4电杆稍径B杆塔承受风压投影面积计算值Af=BH(m2)电杆体形系数μs杆塔风荷载调整系数βz电杆受力WS=2βzAfμsμzW0 (kN)导地线电杆OPGW风压对地面处产生的弯矩M导拉作用点到地面的距离h5导线地线电杆给拉线作用点产生的水平力F合=M/h5200300.751.20.0151901.570796111.02241.10641.10641.1120.56251.5631221.20.00840.00780.8737790.9409931716.813.816.80.35.10.714.46607133.16313.89.64949402JB2-18断上导线工况150/25导线最大张力T150/25导线断线张力TD=0.35T19.446.804地线支持力Tm=0.2TD断线冲击系数KC一串玻璃绝缘子GC导线长度L导线米重k导线自重GD=KL导线自重GD=GD/2+GC/1.36081.10.1911200.007330.87961.070618.615.615.61.51.5拉线拉盘计算地线挂线点到地面作用点的距离h1上导线挂线点到地面作用点的距离h2下导线挂线点到地面作用点的距离h3G/F横担长度a1光缆最大使用张力F3(KN)导线最大使用张力F1(KN)地线最大使用张力F2(KN)线路转角θ(度)线路转角θ1(度)RADLANSθ1COS (θ1)导线角分力T1=2F1COS(θ1)地线角分力T2=2F2COS(θ1)光缆角分力T3=2F3COS(θ1)地线作用点到地面的距离h1(m)导线作用点到地面的距离h2(m)地线受力转化到拉线作用点处的力T4=T2*h1/h2光缆受力转化到拉线作用点处的力T5=T3*h1/h2合力F=3T1+T4+T5+F风拉线对横担的夹角θ2(度)RADLANSθ2COS(θ2)导线拉线对地夹角θ3(度)RADLANSθ3COS(θ3)平衡反力拉线的根数n导线拉线受到的力F导拉=1.05F合/4COS(θ2)COS(θ3)拉线的安全系数K拉线的抗拉强度f(Mpa)拉线截面A=1000F拉*K/f(mm2)拉线型号选择10.7514.4310.7590450.7853980.70710720.407115.202815.202816.813.818.5077518.50775107.8863450.7853980.707107450.7853980.707107456.640312.2127098.11707GJ-100SIN(θ3)导线拉线上拔力FT=F拉SIN(θ3)地线拉线对地夹角θ4RADLANSθ4COS(θ4)地线拉线受到的力F地拉=1.05F2*80%/COS(θ4)SIN(θ4)地线拉线上拔力FT=F地拉SIN(θ4)地拉线截面A=1000F拉*K/f(mm2)拉线型号选择0.70710740.05075601.0471980.518.060.86602515.6404231.28504GJ-35
SIN(θ3)