鋼絲繩計算常用系數

1、鋼絲繩計算常用數據鋼絲繩最大許用拉力計算(1)拉力計算公式：FWXSp*A/K公式中F鋼絲繩允許用拉力(KN)藝Sp-鋼絲繩破斷拉力(KN)K鋼絲繩的安全系數A折減系數(2)鋼絲繩安全系數:用途安全系數用途安全系數作纜風繩3.5作吊索無彎曲時6?7用于手動起重4.5作捆綁吊索8?10用于機械起重5?6用于載人升降機14(3)考慮到鋼絲繩在承載時各鋼絲受力不均勻，繩芯及鋼絲繩彎曲，擠壓所產生的應力的影響，其理論破斷拉力可按下式計算：、4=藝Sp*a式中：藝Sp為破斷拉力總和，A為考慮各種附加因素和受力不均勻的折減系數，鋼絲繩6*196*376*618*1918*19A0.850.820.80.8

2、50.82(4)鋼絲繩破斷拉力1、6X19鋼絲繩破斷拉力直徑鋼絲總斷面積爹乃3(單鋼絲繩的抗拉力強度(Mpa)鋼絲繩/mm鋼絲/mm14001550170018502000Mm2Kg/100m鋼絲繩的破斷拉力總和/KN6.20.414.3213.5320.0022.1024.3026.428.607.70.522.3721.1431.3034.6038.0041.3044.709.30.632.2230.4545.1049.6054.7059.6064.4011.00.743.8541.4461.3067.9074.5081.1087.7012.50.857.2754.1280.1088.70

3、97.30105.50114.5014.00.972.4968.50101.00112.00123.00134.00144.5015.51.089.4984.57125.00138.50152.00165.50178.5017.01.1108.28102.3151.50167.50184.00200.00216.5018.51.2128.87121.8180.00199.50219.00238.00257.5020.01.3151.24142.9211.50234.00257.00279.50302.0021.51.4175.40165.8245.50271.50298.00324.00350

4、.5023.01.5201.35190.3281.50312.00342.00372.00402.5024.51.6229.09216.5320.50355.00389.00423.50458.0026.01.7258.63244.4362.00400.50439.50478.00517.0028.01.8289.95274.0405.50499.00492.50536.00579.5031.02.0357.96338.3501.00554.50608.50662.00715.5034.02.2433.13409.3606.00671.00736.00801.00一37.02.4515.464

5、87.1721.50798.50876.00953.50一40.02.6604.95571.7846.50937.501025.001115.00一2、6X37鋼絲繩破斷拉力直徑鋼絲總斷面積爹乃3（單鋼絲繩的抗拉力強度（Mpa）鋼絲繩鋼絲14001550170018502000/mm/mmMm2Kg/100m鋼絲繩的破斷拉力總和/KN8.70.427.8826.2139.0043.2047.3051.5055.7011.00.543.5740.9660.9067.5074.0080.6087.1013.00.662.7458.9887.8097.20106.50116.00125.0015.0

6、0.785.3980.27119.50132.00145.00157.50170.5017.50.8111.53104.8156.00172.50189.50206.00223.0019.50.9141.16132.7197.50218.50239.50261.00282.0021.51.0174.27163.8243.50270.00296.00322.00348.5024.01.1210.87198.2295.00326.50358.00390.00421.5026.01.2250.95235.9351.00388.50426.50464.00501.5028.01.3294.52276.

7、8412.00456.50500.50544.50589.0030.01.4341.57321.1478.00529.00580.50631.50683.0032.51.5392.11368.6548.50607.50666.50725.00784.0034.51.6446.13419.4624.50691.50758.00825.00892.0036.51.7503.64473.4705.00780.50856.00931.501005.0039.01.8564.63530.8790.00875.00959.501040.001125.0043.02.0697.08655.3975.5010

8、80.001185.001285.001390.0047.02.2843.07792.91180.001305.001430.001560.00一52.02.41003.80943.61405.001555.001705.001855.00一56.02.61178.071107.41645.001825.002000.002175.00一3、6X61鋼絲繩破斷拉力直徑鋼絲總斷面積爹乃3（單鋼絲繩的抗拉力強度（Mpa）鋼絲繩/mm鋼絲/mm14001550170018502000Mm2Kg/100m鋼絲繩的破斷拉力總和/KN11.00.445.9743.2164.3071.2078.1085.0

9、091.9014.00.571.8367.52100.50111.00122.00132.50143.5016.50.6103.4397.22144.50160.00175.50191.00206.5019.50.7140.78132.3197.00218.00239.00260.00281.5022.00.8183.88172.8257.00285.00312.50340.00367.5025.00.9232.72218.8325.00360.00395.50430.50465.0027.51.0287.31270.1402.00445.00488.00531.50574.5030.51.1

10、347.65326.8486.50538.00591.00643.00695.0033.01.2413.73388.9579.00641.00703.00765.00827.0036.01.3485.55456.4679.00752.50825.00898.00971.0038.51.4563.13529.3788.00872.50957.001040.001125.0041.51.5646.45607.7905.001000.001095.001195.001290.0044.01.6735.51691.71025.001140.001250.001360.001470.0047.01.78

11、30.33780.51160.001285.001410.001535.001660.0050.01.8930.88875.01300.001400.001580.001720.001860.0055.52.01149.241080.31605.001780.001950.002125.002295.0061.02.21390.581307.11945.002155.002360.002570.00一66.52.41654.911555.62315.002565.002810.003060.00一72.02.61942.221825.72715.003010.003300.003590.00一鋼絲繩報廢標準(1)、鋼絲繩直徑減少，當直徑磨損不超過30%可允許降低拉力使用，如果超過30%要進行報廢處理。(2)、鋼絲繩經過長期使用后，由于受自然條件和化學腐蝕，當整個鋼絲繩外表面受腐蝕的麻面，從外觀檢查明顯時，則該鋼絲繩已不能使用。另一方面，整根鋼絲繩纖維芯被擠出，使鋼絲繩結構受到破壞時，也不能繼續(xù)使用。(3)、鋼絲斷絲后的報廢標準，見下表鋼絲繩的最初安全系數鋼絲繩結構6X19+1