起重吊装钢丝绳地选用.docx
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起重吊装钢丝绳地选用.docx
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起重吊装钢丝绳地选用
起重吊装钢丝绳的选用
一钢丝绳类型及选用:
表1-8
序号钢丝绳类型一般适宜选用的场合
16×19+1钢丝绳用作缆风绳、拉索,即用于钢绳不受弯曲或可能遭受磨损的地方
26×37+1钢丝绳用于滑车组中,即绳子承受弯曲时采用,作为穿绕滑车组起重绳等
36×61+1钢丝绳用于滑车组和制作千斤绳(吊索)以及绑扎吊起构件(重物)
二钢丝绳的受力及安全系数
钢丝绳的受力计算表1-9
钢丝绳的容许拉力,可由下式求得:
T=c×P/K(N)
式中:
P——产品规格所保证或试验所得的钢丝绳破断拉力(N),如P采用钢丝破断拉力总
和,则须乘“换算系数”;
K——钢丝绳的安全系数,可按表1-10采用
c—钢丝绳的换算系数
钢丝绳的安全系数K表1-10
使用情况K值使用情况K值
用于缆风绳3.5用作千斤绳,无弯曲时6~7
用于手动起重设备4.5用作绑扎的千斤绳8~10
用于机动起重设备5~6用于载人的提升机14
换算系数c按钢丝绳规格而定:
表1-11
钢丝绳规格6×19+16×37+16×61+1
换算系数c0.850.820.80
钢丝绳的钢丝强度,按国家标准(GB1102-74)规定分为五级,即1400、1550、1700、
1850和2000(MPa)。
对钢丝绳在不同公称抗拉强度时的容许拉力,可按下表换算求得:
强度换算系数1400→1550MPa1400→1700a1400→1850MPa1400→2000MPa
1.1071.2151.3211.429
以上算例系按新绳为准,如所用为旧钢丝绳,则求得的容许拉力应根据绳的新旧程度,
乘以0.4~0.75的系数。
附表:
附表1钢丝绳容许拉力查用表表1-12
附表2钢丝绳主要技术规格表1-13
第1页共7页
附表:
1
钢丝绳容许拉力查用表表1-12
6×19+1钢丝绳容许拉力
直径(mm)钢丝总断钢丝绳公称抗拉强度为1400MPa时
参考质
面积破断拉力(kN)安全系数K在下列数值时的容
量(kg/
2
(mm
)
100m)
许拉力(kN)
钢丝绳钢丝钢丝破断整根绳的K=3.5K=5K=8K=10
拉力总和破断拉力
6.20.414.3213.5320.017.04.93.42.11.7
7.70.522.3721.1431.326.67.65.33.32.7
9.30.632.2230.4545.138.310.97.74.83.8
11.00.743.8541.4461.352.114.910.46.55.2
12.50.857.2754.1280.168.119.513.68.56.8
14.00.972.4968.50101.085.824.517.210.78.6
15.51.089.4984.57125.0106.330.421.313.310.7
17.01.1108.28102.3151.5128.836.825.816.112.9
18.51.2128.87121.8180.0153.043.730.619.115.3
20.01.3151.24142.9211.5179.851.436.022.518.0
21.51.4175.40165.8245.5208.659.641.726.120.9
23.01.5201.35190.3281.5239.368.447.929.923.9
24.51.6229.09216.5320.5272.477.854.534.127.2
26.01.7258.63244.4362.0307.787.961.538.530.8
28.01.8289.95274.0405.5344.798.568.943.134.5
31.02.0357.96338.3501.0425.9121.785.253.242.6
34.02.2433.13409.3606.0515.1147.2103.064.451.5
37.02.4515.46487.1721.5613.3175.2122.776.761.3
40.02.6604.95571.7846.5719.5205.6143.989.972.0
43.02.8701.60653.0982.0834.7238.5166.9104.383.5
46.03.0805.41761.11125.0956.3273.2191.3119.595.6
第2页共7页
续上表
6×37+1钢丝绳容许拉力
直径(mm)钢丝总断钢丝绳公称抗拉强度为1400MPa时
参考质
面积破断拉力(kN)安全系数K在下列数值时的容
量(kg/
(mm2)
100m)许拉力(kN)
钢丝绳钢丝钢丝破断整根绳的K=3.5K=5K=8K=10
拉力总和破断拉力
8.70.427.8826.2139.032.09.16.44.03.2
11.00.543.5940.9660.949.914.310.06.25.0
13.00.662.7458.9887.872.020.614.49.07.2
15.00.785.3980.27119.598.028.019.612.39.8
17.50.8111.53104.8156.0127.936.625.616.012.8
19.50.9141.16132.7197.5161.946.332.420.216.2
21.51.0174.27163.8243.5199.757.139.925.020.0
24.01.1210.87198.2295.0241.969.148.430.224.2
26.01.2250.95235.9351.0287.882.257.636.028.8
28.01.3294.52276.8412.0337.896.567.642.233.8
30.01.4341.57321.1478.0391.9112.078.449.039.2
32.51.5392.11368.6548.5449.8128.589.956.245.0
34.51.6446.13419.4624.5512.1146.3102.464.051.2
36.51.7503.64473.4705.0578.1163.2115.672.357.8
39.01.8564.63530.8790.0647.8185.1129.681.064.8
43.02.0697.08655.3975.5799.9228.5150.099.980.0
47.52.2843.47792.91180.0967.6276.5193.5121.096.8
52.02.41003.80943.61405.01152.1329.2230.4144.0115.2
56.02.61178.071107.41645.01348.9385.5269.8168.6134.9
60.52.81366.281284.31910.01566.2447.5313.2195.8156.6
65.03.01568.431474.32195.01799.9514.3359.9225.0180.0
第3页共7页
续上表
6×61+1钢丝绳容许拉力
直径(mm)钢丝总断钢丝绳公称抗拉强度为1400MPa时
参考质
面积破断拉力(kN)安全系数K在下列数值时的容
量(kg/
(mm2)
100m)许拉力(kN)
钢丝绳钢丝钢丝破断整根绳的K=3.5K=5K=8K=10
拉力总和破断拉力
11.00.445.9743.2164.351.414.712.36.45.1
14.00.571.8367.52100.580.422.916.110.18.0
16.50.6103.4397.22144.5115.633.023.114.511.6
19.50.7140.78132.3197.0157.645.031.619.715.8
22.00.8183.88172.8257.0205.658.741.125.720.6
25.00.9232.72218.8325.5261.474.452.132.626.0
27.51.0287.31270.1402.0321.691.964.340.232.2
30.51.1347.65326.8486.5389.2111.277.848.738.9
33.01.2413.73388.9579.0463.2132.392.657.946.3
36.01.3485.55456.4679.5543.6155.3108.768.054.4
38.51.4563.13529.3788.0630.4180.1126.178.863.1
41.51.5646.45607.7905.0724.0206.9144.890.572.4
44.01.6735.51691.41025.0820.0234.3164.0102.582.0
47.01.7830.33780.51160.0928.0265.1185.6116.092.8
50.01.8930.88875.01300.01040.0297.1208.0130.0104.0
55.52.01149.241080.31605.01284.0366.9256.8160.5128.4
61.02.21390.581307.11945.01556.0444.6311.2194.5155.6
66.52.41654.911555.62315.01852.0529.1370.4231.5185.2
72.02.61942.221825.72715.02172.0620.6434.4271.5217.2
77.52.82252.512117.43150.02520.0720.0504.0315.0252.0
83.03.02535.792430.63620.02896.0827.4579.2362.0289.6
第4页共7页
附表2
钢丝绳主要技术规格表1-13
6×19+1钢丝绳
直径(mm)钢丝总钢丝绳公称抗拉强度(MPa)
参考
断面积质量(kg/
14001550170018502000
2)
钢丝绳钢丝(mm钢丝破断拉力总和(Kn)≤
100m)
6.20.414.3213.5320.022.124.326.428.6
7.70.522.3721.1431.334.638.041.344.7
9.30.632.2230.4545.149.954.759.664.4
11.00.743.8541.4461.367.974.581.187.7
12.50.857.2754.1280.186.797.3105.5114.5
14.00.972.4968.50101.0112.0123.0134.0144.5
15.51.089.4984.57125.0138.5152.0165.5178.5
17.01.1108.28102.3151.5167.5184.0200.0216.5
18.51.2128.87121.8180.0199.5219.0238.0257.5
20.01.3151.24142.9211.5234.0257.0279.5302.0
21.51.4175.40165.8245.5271.5298.0324.0350.5
23.01.5201.35190.3281.5312.0342.0372.0402.5
24.51.6229.09216.5320.5355.0389.0423.5458.0
26.01.7258.63244.4362.0400.5439.5478.0517.0
28.01.8289.95274.0405.5449.0492.5536.0579.5
31.02.0357.96338.3501.0554.5608.5662.0715.5
34.02.2433.13409.3606.0671.0736.0801.0
37.02.4515.46487.1721.5798.5876.0953.5
40.02.6604.95571.7846.5937.51025.01115.0
43.02.8701.60653.0982.01085.01190.01295.0
46.03.0805.41761.11125.01245.01365.01490.0
第5页共7页
钢丝绳主要技术规格序上表
6×37+1钢丝绳
直径(mm)钢丝总钢丝绳公称抗拉强度(MPa)
参考
断面积质量(kg/
14001550170018502000
2)
钢丝绳钢丝(mm钢丝破断拉力总和(Kn)≤
100m)
8.70.427.8826.2139.043.243.751.555.7
11.00.543.5940.9660.967.574.080.687.1
13.00.662.7458.9887.897.2106.5116.0125.0
15.00.785.3980.27119.5132.0145.0157.5170.5
17.50.8111.53104.8156.0172.5189.5206.0223.0
19.50.9141.16132.7197.5218.5239.5261.0282.0
21.51.0174.27163.8243.5270.0296.0322.0348.5
24.01.1210.87198.2295.0326.5358.0390.0421.5
26.01.2250.95235.9351.0388.5426.5464.0501.5
28.01.3294.52276.8412.0456.5500.5544.5589.0
30.01.4341.57321.1478.0529.0580.5631.5683.0
32.51.5392.11368.6548.5607.5666.5725.0784.0
34.51.6446.13419.4624.5691.5758.0825.0892.0
36.51.7503.64473.4705.0780.5856.0931.51005.0
39.01.8564.63530.8790.0875.0959.51040.01125.0
43.02.0697.08655.3975.51080.01185.01285.01390.0
47.52.2843.47792.91180.01305.01430.01560.0
52.02.41003.80943.61405.01555.01705.01855.0
56.02.61178.071107.41645.01825.02000.02175.0
60.52.81366.281284.31910.02115.02320.02525.0
65.03.01568.431474.32195.02430.02665.02900.0
第6页共7页
钢丝绳主要技术规格序上表
6×61+1钢丝绳
直径(mm)钢丝总钢丝绳公称抗拉强度(MPa)
参考
断面积质量(kg/
14001550170018502000
2)
钢丝绳钢丝(mm钢丝破断拉力总和(Kn)≤
100m)
11.00.445.9743.2164.371.278.185.091.9
14.00.571.8367.52100.5111.0122.0132.5143.5
16.50.6103.4397.22144.5160.0175.5191.0206.5
19.50.7140.78132.3197.0218.0239.0260.0281.5
22.00.8183.88172.8257.0285.0312.5340.0367.5
25.00.9232.72218.8325.5360.5395.5430.5465.0
27.51.0287.31270.1402.0445.0488.0531.5574.5
30.51.1347.65326.8486.5538.5591.0643.0695.0
33.01.2413.73388.9579.0641.0703.0765.0827.0
36.01.3485.55456.4679.5752.5825.0898.0971.0
38.51.4563.13529.3788.0872.5957.01040.01125.0
41.51.5646.45607.7905.01000.01095.01195.01290.0
44.01.6735.51691.41025.01140.01250.01360.01470.0
47.01.7830.33780.51160.01285.01410.01535.01660.0
50.01.8930.88875.01300.01440.01580.01720.01860.0
55.52.01149.241080.31605.01780.01950.02125.02295.0
61.02.21390.581307.11945.02155.02360.02570.0
66.52.41654.911555.62315.02565.02810.03060.0
72.02.61942.221825.72715.03010.03300.03590.0
77.52.82252.512117.43150.03490.03825.04165.0
83.03.02535.792430.63620.04005.04395.04780.0
注:
表1-13中粗线左侧,可供应光面或镀锌钢丝绳;右侧只供应光面钢丝绳。
第7页共7页
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