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1、钢丝绳计算常用数据一、 钢丝绳最大许用拉力计算（1）拉力计算公式： F sp*A/K公式中 F 钢丝绳允许用拉力（KN） sp钢丝绳破断拉力（KN） K钢丝绳的安全系数 A折减系数（2）钢丝绳安全系数：用途安全系数用途安全系数作缆风绳3.5作吊索无弯曲时67用于手动起重4.5作捆绑吊索810用于机械起重56用于载人升降机14（3）考虑到钢丝绳在承载时各钢丝受力不均匀，绳芯及钢丝绳弯曲，挤压所产生的应力的影响，其理论破断拉力可按下式计算：、Sp=sp*A式中：sp为破断拉力总和，A为考虑各种附加因素和受力不均匀的折减系数，钢丝绳6*196*376*618*1918*19A0.850.820.80
2、.850.82（4）钢丝绳破断拉力1、 619钢丝绳破断拉力直 径钢丝总断面积参考重量钢丝绳的抗拉力强度（Mpa）钢丝绳/mm钢丝/mm14001550170018502000Mm2Kg/100m钢丝绳的破断拉力总和/KN6.20.414.3213.5320.0022.1024.3026.428.607.70.522.3721.1431.3034.6038.0041.3044.709.30.632.2230.4545.1049.6054.7059.6064.4011.00.743.8541.4461.3067.9074.5081.1087.7012.50.857.2754.1280.1088.
3、7097.30105.50114.5014.00.972.4968.50101.00112.00123.00134.00144.5015.51.089.4984.57125.00138.50152.00165.50178.5017.01.1108.28102.3151.50167.50184.00200.00216.5018.51.2128.87121.8180.00199.50219.00238.00257.5020.01.3151.24142.9211.50234.00257.00279.50302.0021.51.4175.40165.8245.50271.50298.00324.003
4、50.5023.01.5201.35190.3281.50312.00342.00372.00402.5024.51.6229.09216.5320.50355.00389.00423.50458.0026.01.7258.63244.4362.00400.50439.50478.00517.0028.01.8289.95274.0405.50499.00492.50536.00579.5031.02.0357.96338.3501.00554.50608.50662.00715.5034.02.2433.13409.3606.00671.00736.00801.0037.02.4515.46
5、487.1721.50798.50876.00953.5040.02.6604.95571.7846.50937.501025.001115.002、637钢丝绳破断拉力直 径钢丝总断面积参考重量钢丝绳的抗拉力强度（Mpa）钢丝绳/mm钢丝/mm14001550170018502000Mm2Kg/100m钢丝绳的破断拉力总和/KN8.70.427.8826.2139.0043.2047.3051.5055.7011.00.543.5740.9660.9067.5074.0080.6087.1013.00.662.7458.9887.8097.20106.50116.00125.0015.00.
6、785.3980.27119.50132.00145.00157.50170.5017.50.8111.53104.8156.00172.50189.50206.00223.0019.50.9141.16132.7197.50218.50239.50261.00282.0021.51.0174.27163.8243.50270.00296.00322.00348.5024.01.1210.87198.2295.00326.50358.00390.00421.5026.01.2250.95235.9351.00388.50426.50464.00501.5028.01.3294.52276.84
7、12.00456.50500.50544.50589.0030.01.4341.57321.1478.00529.00580.50631.50683.0032.51.5392.11368.6548.50607.50666.50725.00784.0034.51.6446.13419.4624.50691.50758.00825.00892.0036.51.7503.64473.4705.00780.50856.00931.501005.0039.01.8564.63530.8790.00875.00959.501040.001125.0043.02.0697.08655.3975.501080
8、.001185.001285.001390.0047.02.2843.07792.91180.001305.001430.001560.0052.02.41003.80943.61405.001555.001705.001855.0056.02.61178.071107.41645.001825.002000.002175.003、661钢丝绳破断拉力直 径钢丝总断面积参考重量钢丝绳的抗拉力强度(Mpa)钢丝绳/mm钢丝/mm14001550170018502000Mm2Kg/100m钢丝绳的破断拉力总和/KN11.00.445.9743.2164.3071.2078.1085.0091.90
9、14.00.571.8367.52100.50111.00122.00132.50143.5016.50.6103.4397.22144.50160.00175.50191.00206.5019.50.7140.78132.3197.00218.00239.00260.00281.5022.00.8183.88172.8257.00285.00312.50340.00367.5025.00.9232.72218.8325.00360.00395.50430.50465.0027.51.0287.31270.1402.00445.00488.00531.50574.5030.51.1347.65
10、326.8486.50538.00591.00643.00695.0033.01.2413.73388.9579.00641.00703.00765.00827.0036.01.3485.55456.4679.00752.50825.00898.00971.0038.51.4563.13529.3788.00872.50957.001040.001125.0041.51.5646.45607.7905.001000.001095.001195.001290.0044.01.6735.51691.71025.001140.001250.001360.001470.0047.01.7830.337
11、80.51160.001285.001410.001535.001660.0050.01.8930.88875.01300.001400.001580.001720.001860.0055.52.01149.241080.31605.001780.001950.002125.002295.0061.02.21390.581307.11945.002155.002360.002570.0066.52.41654.911555.62315.002565.002810.003060.0072.02.61942.221825.72715.003010.003300.003590.00二、 钢丝绳报废标
12、准（1）、钢丝绳直径减少，当直径磨损不超过30，可允许降低拉力使用，如果超过30，要进行报废处理。（2）、钢丝绳经过长期使用后，由于受自然条件和化学腐蚀，当整个钢丝绳外表面受腐蚀的麻面，从外观检查明显时，则该钢丝绳已不能使用。另一方面，整根钢丝绳纤维芯被挤出，使钢丝绳结构受到破坏时，也不能继续使用。（3）、钢丝断丝后的报废标准，见下表：钢丝绳的最初安全系数钢丝绳结构619+1637+1661+1在一扣距全长中拉断钢丝绳根数交互捻同向捻交互捻同向捻交互捻同向捻6以下1262211361867147361338197以上16840154020（4）、如果钢丝绳外表面钢丝有磨损时，报废断丝数应该按上表查出的数值乘以折减系数，折减系数如下表：钢丝绳表面磨损量或锈蚀量（%）10
