架空輸電線路課程設(shè)計

架空輸電線路課程設(shè)計班級姓名學號指導老師年月日···································································································3···································································································3·····························································································4···································································································5·······································································6·····························································································8····································································9····························································································11·········································································14········································································································14V區(qū)二三1.氣象條件及其作用00000000077707000000動件距距2.風速換算米vvhzh0vh；0；hvz6；；h150.1610z1.06710則3.導線參數(shù)7截面積彈性系溫膨計算質(zhì)量抗拉強安全許用應(yīng)年均應(yīng)mm2)徑數(shù)系數(shù)斷力）度p）cp）10^-64T123400451.550.950.95259.62MPajAp259.622.5103.85(MPa)p0kcp259.6264.90(MPa)p44四1.自重比載qgA15119.8066510310332.8210(/)m3451.5512.冰重比載b(db)27.72810327.72810323.1110(/)m3451.552A3.垂直總比載55.9310(3MPam/)3124.無冰風壓比載WvAsin10(3m/)d24cf）1.01.01.1cfWvA10.672sin1.127.634.79(3m/)d233451.554cf1.00.751.1cfWvA2sin0.751.127.638.09(/)3md233451.554cf1.01.1c2計算強度時0.75WvAsin0.751.127.6332.33(/)3md2334cff451.55WvA20.61sin0.611.127.6326.29(3m/)d2334cff451.555.覆冰風壓比載WvA(2)sin10(/)3mdb25cf1.01.2c1.0fWvA10.672(2)sin1.247.639.01(3m/)db233451.555cf6.無冰綜合比載2216432.824.791033.1710(MPa/m)2233632.828.091033.8010(/)MPam2233632.8232.331046.0710(/)MPam22333632.8226.291042.0510(/)MPam22367.覆冰綜合比載2237555.939.011056.6510(/)MPam22337數(shù)（10）MPa/m31.0/)46.0710333//)m33330。/bdac02.按等高懸點考慮，計算各臨界檔距coscosE2l23E2l23cosEttjijiij242400jij2i200jiEttlij00jiji2Ej3i00ji24Ecostt624106900020lm0bab690000.44360.316010226cos3Eab00ab24Ecostt61069000l虛數(shù)00caca6900010226cos3Eca00ac24Ecostt62410690005ldm00dada690000.54550.316010226cos3Ead00ad24Ecostt61069000l虛數(shù)00cbcb6900010226cos3Ecb00bc24Ecostt6241069000(l虛數(shù)00dbdb6900010226cos3Edb00bd24Ecostt1069000lm00dcdc690000.316010226cos3Edc00cd)l164.82mcd—1.臨界溫度法tb3b。水平應(yīng)力為t1jjtt11bEjb32.判定）15C32.8210（MPa/m）t1164.9015C55.9310（MPa/m）t待求222cos3Ecos3E2l22l2cosEtt122424020121220201289934.74322294.3232.821094.33t15124.3Ct1b55.931019.31069000Ejb363C,tCtttmaxjj）5C56.6510（MPa/m）t11103.8515C55.9310（MPa/m）t1待求222cos3Ecos3E2l22l2cosEtt122242402012120201269.63359738.963222103.33232.8210103.333tt15127.1C1b55.931019.31069000Ejb363C,tCtttmaxjj1.各已知條件及參數(shù)如下表六所示mm0m32.8256.653m(MPa)m2.待求條件的已知參數(shù)如下表七所示最高最低年均事故外過外過內(nèi)過安裝覆冰覆冰覆冰最大最大有風無風電壓氣象無風有風有風風速風速（強（風（強（風度）偏）度）偏）15-50-5-5m000m000010.67010.6710.6732.0132.01m33.1732.8233.8033.1755.9356.6556.6546.0742.05(10/)MPam3m3.利用狀態(tài)方程式求得各條件下的應(yīng)力與弧垂，列于下表八中。8）5C56.6510（MPa/m）103.85t11140C32.8210（MPa/m）t，水平應(yīng)力222cos3Ecos3E2l22l2cosEtt12242402012122020192.96495490.1043222令495490.10492.9650B0則上式變換為取2A222495490.104495490.10458.8757.4657.4157.1357.39125092.9658.8792.9622495490.104495490.1043457.1392.9657.4692.9622495490.104495490.10457.405657.3992.9657.4192.962257.40MPa2l32.821034002211.44mf857.40v01.51002f10010l2lff100100,C5CJElcos3Elcos22223cosEcosttEJ2424J202JJJ0coscostttcosE/costtEEttEJJJJJt鋁鋼截面比鋁鋼截面比鋁鋼截面比tC（）251.822399.737.71420C51.82C5C56.6510（MPa/m）t11103.85140C32.8210（MPa/m）t222EcoslcosE2232l23cosEttt122242402012120201代入數(shù)據(jù)得66.32495490.104322260B495490.1040則上式變換為取266.32A222495490.104495490.10462.6361.9962.11126066.3262.6366.3222495490.104495490.10462.143461.9966.3262.1466.3222495490.104