2023架空导线覆冰过载能力计算

LGJ-300/25K=3V=30.9m/sC=5mm导线覆冰过载能力计算-200903,,,,,,,,,,,,,,,,,,,,,,

导线型号,LGJ-300/25,,安全系数,3,年平均运行张力(%),,25,保证破断张力取计算拉断力的,,,0.95,直径(mm),23.76,,,,,,,,,

计算拉断力(N),,自重荷载(N/m),,截面积(mm^2),,弹性模量(N/mm^2),,温度线膨胀系数(1/℃),,最大使用张力(N),,平均运行张力(N),,,,,,,,,,

83410,,10.3754,,333.31,,65000.0,,0.00002050,,26413,,19810,,,设计基准风速高度取值,,特高压交流,特高压直流,500～750kV,110～330kV,,

临界档距Lkp1=127.81m,,小于临界档距的控制条件为：最低气温；大于临界档距的控制条件为：覆冰,,,,,,,,基准设计风速(m/s),,设计风速基准高度(m),导线平均高度(m),,,,10m,10m,10m,10m,,

临界档距Lkp2=397.63m,,小于临界档距的控制条件为：覆冰；大于临界档距的控制条件为：大风,,,,,,,,,,,,,导线平均高度建议值,,特高压交流,特高压直流,500～750,110～330,,

,,,,,,,,,,29,,10,15,,,,30m,26m,20m,15m,,

"地面粗糙度类别(1-田野、山丘,2-海岛,3-城市，4－自定义)：",,,,,1,地面粗糙度指数a(高空风压系数计算)：,,,,0.16,,系数K=,1,,,,,,,,,

导线覆冰过载能力(最低点水平张力达到拉断力的,,,,,70%,覆冰风荷载增大系数：,,,,1,,,,,,,,,,,,

工况,控制工况,,,,,Lp1=,376,m时的覆冰过载能力,,Lp2=,376,m时的覆冰过载能力,,,高空风压系数计算取值,,,,,,,

,年平均气温,最低气温,大风,覆冰,,重新计算：是(1)、否(0)：,,,1,重新计算：是(1)、否(0)：,,,1,,地面粗糙度类别,,1,2,3,4,,

冰厚(mm),0,0,0,5,,过载冰厚,22.3,22.3,mm,过载冰厚,23.2,23.2,mm,,系数K,,1,1.379,0.616,1,,

基准风速(m/s),0,0,29,10,,,15,15,,,15,15,,,地面粗糙度指数a,,0.16,0.12,0.22,0.14,,

风压不均匀系数,1,1,0.75,1,,,1,1,,,1,1,,,,,B类,A类,C类,自定义,,

导线风速(m/s),0.0,0.0,30.9,10.0,,,15.0,15.0,,,15.0,15.0,,,此处为导线平均高度处的风速,,,,,,,

气温(℃),15,-10,10,-5,,,-5,-5,,,-5,-5,,,,,,,,,,

垂直荷载(N/m),10.3754,10.3754,10.3754,14.3627,,,38.8556,38.8556,,,40.5839,40.5839,,,,,,,,,,

水平荷载(N/m),0.0000,0.0000,11.7307,2.5320,,,11.5358,11.5358,,,11.8395,11.8395,,,,,,,,,,

综合荷载(N/m),10.3754,10.3754,15.6608,14.5841,,,40.5318,40.5318,,,42.2756,42.2756,,,,,,,,,,

代表档距(m),张力(N),张力(N),张力(N),张力(N),,代表档距m,张力(N),张力(N),,,张力(N),张力(N),,,,,,,,,,

a,21378.3,10274.9,19157.6,12495.6,,,12495.6,12495.6,,,12495.6,12495.6,,,,,,,,,,

b,1.37385E+13,1.37385E+13,3.13006E+13,2.71449E+13,,,2.09661E+14,2.09661E+14,,,2.2809E+14,2.2809E+14,,,,,,,,,,

T1,20329,21915,26255,26413,,,92709,92709,,,99403,99403,,,,,,,,,,

T2,18671,21005,26254,26413,,,67993,67993,,,72087,72087,,,,,,,,,,

T3,18550,20969,26254,26413,,,57559,57559,,,59929,59929,,,,,,,,,,

T4,18549,20969,26254,26413,,,55587,55587,,,57320,57320,,,,,,,,,,

T5,18549,20969,26254,26413,,,55521,55521,,,57205,57205,,,,,,,,,,

T6,18549,20969,26254,26413,,,55520,55520,,,57205,57205,,,,,,,,,,

376,18549,20969,26254,26413,,Lp1,55520,55520,过载,,57205,57205,过载,,控制工况,覆冰,气温(℃),-5,荷载(N/m),14.5841,张力(N),26413

a,21378.3,10274.9,19157.6,12495.6,,,12495.6,12495.6,未过载,,12495.6,12495.6,未过载,,,,,,,,,

b,1.37385E+13,1.37385E+13,3.13006E+13,2.71449E+13,,,2.09661E+14,2.09661E+14,过载,,2.2809E+14,2.2809E+14,过载,,,,,,,,,

T1,20329,21915,26255,26413,,,92709,92709,过载,,99403,99403,过载,,,,,,,,,

T2,18671,21005,26254,26413,,,67993,67993,过载,,72087,72087,过载,,,,,,,,,

T3,18550,20969,26254,26413,,,57559,57559,过载,,59929,59929,过载,,,,,,,,,

T4,18549,20969,26254,26413,,,55587,55587,过载,,57320,57320,过载,,,,,,,,,

T5,18549,20969,26254,26413,,,55521,55521,过载,,57205,57205,过载,,,,,,,,,

T6,18549,20969,26254,26413,,,55520,55520,过载,,57205,57205,过载,,,,,,,,,

476,18549,20969,26254,26413,,Lp1+100,55520,55520,过载,,57205,57205,过载,,控制工况,覆冰,气温(℃),-5,荷载(N/m),14.5841,张力(N),26413

a,21378.3,10274.9,19157.6,12495.6,,,12495.6,12495.6,未过载,,12495.6,12495.6,未过载,,,,,,,,,

b,1.37385E+13,1.37385E+13,3.13006E+13,2.71449E+13,,,2.09661E+14,2.09661E+14,过载,,2.2809E+14,2.2809E+14,过载,,,,,,,,,

T1,20329,21915,26255,26413,,,92709,92709,过载,,99403,99403,过载,,,,,,,,,

T2,18671,21005,26254,26413,,,67993,67993,过载,,72087,72087,过载,,,,,,,,,

T3,18550,20969,26254,26413,,,57559,57559,过载,,59929,59929,过载,,,,,,,,,

T4,18549,20969,26254,26413,,,55587,55587,过载,,57320,57320,过载,,,,,,,,,

T5,18549,20969,26254,26413,,,55521,55521,过载,,57205,57205,过载,,,,,,,,,

T6,18549,20969,26254,26413,,,55520,55520,过载,,57205,57205,过载,,,,,,,,,

376,18549,20969,26254,26413,,Lp2,55520,55520,过载,,57205,57205,过载,,控制工况,覆冰,气温(℃),-5,荷载(N/m),14.5841,张力(N),26413

a,47711.0,36607.7,45490.4,38828.3,,,38828.3,38828.3,未过载,,38828.3,38828.3,未过载,,,,,,,,,

b,2.2018E+13,2.2018E+13,5.01639E+13,4.35037E+13,,,3.36013E+14,3.36013E+14,过载,,3.65548E+14,3.65548E+14,过载,,,,,,,,,

T1,19976,20962,26413,25928,,,96512,96512,过载,,103639,103639,过载,,,,,,,,,

T2,18367,19813,26413,25921,,,70421,70421,过载,,74718,74718,过载,,,,,,,,,

T3,18268,19763,26413,25921,,,60308,60308,过载,,62818,62818,过载,,,,,,,,,

T4,18268,19763,26413,25921,,,58734,58734,过载,,60691,60691,过载,,,,,,,,,

T5,18268,19763,26413,25921,,,58697,58697,过载,,60626,60626,过载,