大六角高强度螺栓连接工艺1范围本工艺适用于钢构造安装工程大六角高强度螺栓连接的施工技术。22施工准备2.1材料：螺栓、螺母、垫圈均应附有质量证明书并应符合设计要求和的规定。大六角头高强度螺栓的规格、尺寸及重量应符合表5-4的规定。大六角高强度螺母的规格、尺寸及重量应符合表5-5的规定。高强度垫圈的规格、尺寸及重量应符合表5-6的规定。钢构造用大六角头高强度螺栓的规格、尺寸及重量表5-4d(mm)公称尺寸121620(22)24(27)3012.4316.4320.5222.5224.5227.8430.84最小11.5715.5719.4821.4823.4826.1629.16e(mm)最小22.7829.5637.2939.5545.250.8555.37dw(mm)19.224.931.433.338.042.846.5s(mm)21273436414650最小20.1626.163335404549h(mm)7.9510.7513.414.915.917.919.75最小7.059.2511.613.114.116.117.65r(mm)最小1.01.01.51.51.52.02.0c(mm)0.80.80.80.80.80.80.8最小0.40.40.40.40.40.40.4z(mm)2.63.03.83.84.54.55.3L0(mm)25;3030;3535;4040;4545;5050;5555;60L(mm)每1000个螺栓的重量〔kg〕≈公称最小354033.7538.7536.2541.2549.454.24543.7546.2557.8113.05048.7551.2562.5121.3207.35553.556.567.3127.9220.3269.36058.561.572.1136.2233.3284.9357326563.566.576.8144.5243.6300.5375.7503.27068.571.581.6152.8256.5313.2394.2527.1658.27573.576.586.3161.2269.5328.9407.1551.0687.58078.581.5169.5282.5344.5428.6570.2716.88583.2586.75177.8295.5360.1446.1594.1740.39088.2591.75186.1308.5375.84.7617.9769.69593.2596.75194.4321.4391.4483.21.8799.010098.25101.75202.8334.4407.0501.7665.7828.3110108.25111.75219.4360.4438.3538.8713.5886.9120118.25121.75236.1386.3469.6575.9761.3945.6130128132252.7412.3500.8612.9809.11004.2140138142438.3532.1650.0856.91062.81501481524.2563.4687.1904.71121.5160156165490.2594.6724.2952.41180.1170166174625.9761.21000.21238.7180176184657.2798.31048.01297.4190186194688.4835.41095.81356.0200196204719.7872.41143.61414.7220216224782.2946.61239.21531.92402302441020.71334.719.226025621430.31766.5注：1.括内的规格尽可能不采用。2.虚线以上部分的螺纹长度按l0栏内的前面数值采用〔亦允许螺杆上全部制出螺纹〕；虚线以下部分的螺纹长度按l0栏内的后面数值采用。3.dw的尺寸等于s的实际尺寸。钢构造用高强度大六角螺母的规格、尺寸及重量表5-5d(mm)121620(22)24(27)30s(mm)最小2120.162726.1634333635414046455049h(mm)12.311.8717.116.420.719.423.622.324.222.927.626.330.729.1e(mm)dw(mm)最小22.7819.229.5624.937.2931.439.5533.345.2038.050.8542.855.3746.6c(mm)最小0.80.40.80.40.80.40.80.40.80.40.80.40.80.4每1000个螺母的重量〔kg〕≈27.6861.51118.77146.59202.67288.51374.01注：1.括内的规格尽可能不采用。2.dw的尺寸等于s的实际尺寸。钢构造用高强度垫圈的规格、尺寸及重量表5-6公称直径〔螺纹直径d〕(mm)121620(22)24(27)30d1(mm)最小〔公称〕13.431317.431721.522123.522325.522528.522831.6231d2(mm)〔公称〕最小2523.73331.44038.44240.44745.45250.45654.1t(mm)最小3.32.53.32.54.33.55.34.55.34.56.35.56.35.5c(mm)最小1.61.21.61.22.21.82.21.82.21.82.92.52.92.5每1000个垫圈的重量〔kg〕≈9.0315.9629.8439.3950.7172.0981.96注：括内的尺寸尽可能不采用。不同等级的大六角头高强度螺栓的材料性能必须符合表5-7的规定。不同等级的大六角头高强度螺栓的材料性能表5-7性能等级抗拉强度σbN/mm2(kgf/mm2)屈从强度σ0.2N/mm2(kgf/mm2)伸长率δ5〔〕收缩率ψ〔〕冲击韧性αkJ/cm2(kgf·m/cm2)不小于10.9S～1240(106～126)940(95)104259(6)8.8S830～1030(85～105)660(68)124578(8)不同规格的高强度螺栓的机械性能、拉力应符合表5-8的规定。不同规格大六角头高强度螺栓的机械性能、拉力表5-8公称直径d(mm)121620(22)24(27)30公称应力截面积As(mm2)84.3157245303353459561性能等级10.9S拉力截荷N(kgf)87700～104500(40～10700)163000～195000(16600～19800)255000～304000(...
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