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导线弧垂计算

来源:九壹网
4020301020010-100-20-10-30

弧垂系数

500.1760.1430.120.1030.90.81000.690.5770.4910.4240.3720.3311501.5231.2211.1461.0010.8820.7852002.6652.382.1171.8811.6751.4982504.1143.7653.4263.1042.8042.5333005.8715.4735.0764.6854.3053.944

JL/G1A-240/30线 架线张力特性表 n=

说明:

为补偿塑性伸长,可按观测时温度降低25度,用代表档距查得弧垂系数H/L<0.17时,观测弧垂F1=K×L2×0.0001+4/3×L4(0.0001K)3

H/L>=0.17时,观测弧垂F2=K×L2×0.0001/cosβ+4/3×L4(0.0001K)3 /cosβ式中:F-观测弧垂(m),K-弧垂系数,L-观测档距(m),β-高差角,H-高差(

输入数据:K=

L=H=

输出数据:L2=

L4=L2+H2=

(L2+H2)0.5=(0.0001K)3=COSβ=F1=F2=

4.68535371246091.6E+10124658353.0691E-100.999860.508360.5197耐张段代表档长度距LD(米)(米)4873084873083573571101074324318382431241431241进门型构架计算a57760.70310000

COSβ=L/(L2+H2)0.5

各种温度对应代表档观测档距LN1-N2N2-N3N3-N4N4-N5N5-N6N6-N7N7-N8N8-N9

35313435711043283278152

序号12345678

耐张塔号N1-N3N3-N4N4-N5N5-N6N6-N7N7-N9N9

a=0.4061

3505.756.1846.6237.0647.5047.93940010.3189.8559.3858.9088.4287.94545013.01112.52712.03311.53211.02410.50950016.01915.51815.00714.48813.96113.425

表 n=2.5

垂系数值,则:

0001K)3

×L4(0.0001K)3 /cosβ

β-高差角,H-高差(m)

2

+H2)0.5

代表档距计算代表档距=档内各档距三次方之和,除以档内各档距之和,之后开根号代表档距=√((〖L1〗^3+〖L2〗^3……〖+Ln〗^3)/(L1+L2……+Ln))89-925922073873202.07E+089E+066E+07AN4109-AN3E+0711864755向小号测移动18米,向大号侧480.9219

538

L

各种温度对应代表档距弧垂值fD(米)F0℃55.307.76104.790.46267.950.2621.856.49

10℃60.518.4697.660.52286.430.2924.237.19

20℃65.969.1790.700.60305.470.3426.807.94

30℃71.599.9083.940.71325.070.4029.528.74

高程小号

426416404413387416426424

大号416404413387416426424410

呼称高小号1821182124181821

大号2118212418182121

高差H

(0715-1223-23-10-114

内各档距之和,之后开根号n〗^3)/(L1+L2……+Ln))8035E+085163545084475625383243831E+08443618641.31E+08893146231.78E+081.56E+083401222456181887大号侧移动108米插值计算3000.7393250.7273120.73612H/L对应代表档距下的弧垂系数 K10℃4.6854.6857.0640.4311.5320.4243.1043.104

20℃5.0765.0766.6230.49912.0330.4913.4263.426

30℃5.4735.4736.1840.58912.5270.5773.7653.765

(0.17)0℃0.0144.3050.0314.305-0.037.5040.2090.377-0.0511.024-0.120.372-02.8040.0322.804

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