导线弧垂计算

50100150200250300

4020弧0.1760.69 1.523 2.665 4.114 5.871

3010垂0.1430.577 1.221 2.38 3.765 5.473

200系0.120.491 1.146 2.117 3.426 5.076

10-10数0.1030.424 1.001 1.881 3.104 4.685

0-200.90.3720.882 1.675 2.804 4.305

-10-300.80.3310.785 1.498 2.533 3.944 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= 4.685COSβ=L/(L2+H2)0.5

L=353

H=7

输出数据：L2=124609

L4= 1.6E+10

L2+H2=124658

(L2+H2)0.5=353.069

（0.0001K）3=1E-10

COSβ=0.9998

F1=60.5083

F2=60.5197

2487308N2-N3134

3N3-N4357357N3-N4357

4N4-N5110107N4-N5110

5N5-N6432431N5-N6432

6N6-N78382N6-N783

7N7-N9431241N7-N8278

8N9431241N8-N9152

进门型构架计算

a5776

0.70310000a=0.4061

3504004505005.7510.31813.01116.0196.1849.85512.52715.5186.6239.38512.03315.0077.0648.90811.53214.4887.5048.42811.02413.9617.9397.94510.50913.425

2

+H 2)0.5

L

480.9219

538

高差H

小号

大号小号大号

（0426416182177.768.469.179.90416404211815104.7997.6690.7083.944044131821-120.460.520.600.71413387212423267.95286.43305.47325.0738********-230.260.290.340.404164261818-1021.8524.2326.8029.524264241821-16.49

7.19

7.94

8.74

424

410

21

21

14

呼称高β-高差角，H-高差（m）

表 n=2.5

垂系数值，则：

0001K）

3

×L 4（0.0001K）3 /cos β

n〗

H/L

0.031 4.305 4.685 5.076 5.473

-0.037.5047.064 6.623 6.184

0.2090.3770.430.4990.589

-0.0511.02411.53212.03312.527

-0.120.3720.4240.4910.577

-0 2.804 3.104 3.426 3.765

0.032 2.804 3.104 3.426 3.765