大六角高强度螺栓连接施工工艺本工艺标准适用于钢结构安装工程，大六角高强度螺栓连接的施工技术。2.1材料：2.1.1螺栓、螺母、垫圈均应附有质量证明书，并应符合设计要求和国家标准的规定；2.1.2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。2.1.3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。2.1.4高强度垫圈的规格、尺寸及重量应符合表5-6的规定。2.1.5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。2.1.6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。2.1.7大六角头高强度螺栓的硬度应符合表5-9的规定。2.1.8大六角头高强度螺栓的连接副是由一个螺栓、二个垫圈、一个螺母组成，螺栓、螺母和垫圈应按表5-10规定配套使用。2.1.9大六角头高强度螺栓验收入库后应按规格分类存放。应防雨、防潮，遇有螺纹损伤或螺栓、螺母不配套时不得使用。2.1.10大六角头高强度螺栓存放时间过长，或有锈蚀时，应抽样检查紧固轴力，待满足要求后方可使用。螺栓不得粘染泥土、油污，必须清理干净。2.2主要机具：电动扭矩扳手及控制箱、手动扭矩扳手、扭矩测量扳手、手工扳手、钢丝刷、冲子、钢结构用大六角头高强度螺栓的规格、尺寸及重量表5-4公称尺寸121620(22)24(27)30最大12.4316.4320.5222.5224.5227.8430.84最小11.5715.5719.4821.4823.4826.1629.16e(mm)22.7829.5637.2939.5545.2050.8555.37dw(mm)19.224.931.433.338.042.846.55最大21273436414650(mm)最小20.1626.163335404549h最大7.9510.7513.4014.9015.9017.9019.75(mm)最小7.059.2511.6013.1014.1016.1017.65r(mm)最小1.01.01.51.51.52.02.0c最大0.80.80.80.80.80.80.8(mm)最小0.40.40.40.40.40.40.4z(mm)最大2.63.03.83.84.54.55.3l0(mm)25；3030；3535；4040；4545；5050；5555；60l(mm)公称最小最大3533.7536.2549.44038.7541.2554.24543.7546.2557.8113.05048.7551.2562.5121.3207.35553.556.;567.3127.9220.3269.36058.561.572.1136.2233.3284.9357.26563.566.576.8144.5243.6300.5375.7503.27068.571.581.6152.8256.5313.2394.2527.1658.27573.576.586.3161.2269.5328.9409.1551.0687.58078.581.5169.5282.5344.5428.6570.2716.88583.2586.75177.8295.5360.1446.1594.1740.39088.2591.75186.1308.5375.8464.7617.9769.69593.2596.75194.4321.4391.4483.2641.8799.010098.25101.75202.8334.4407.0501.7665.7828.3续表110108.25111.75219.4360.4438.3538.8713.5886.9120118.25121.75236.1386.3469.6575.9761.3945.6130128132252.7412.3500.8612.9809.11004.2140138142438.3532.1650.0856.91062.8150148152464.2563.4687.1904.71121.5160156165490.2594.6724.2952.41180.1170166174625.9761.21000.21238.7180176184657.2798.31048.01297.4190186194688.4835.41095.81356.0200196204719.7872.41143.61414.7220216224782.2946.61239.21531.92402302441020.71334.71649.22602562641430.31766.5注：1.括号内的规格，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的最大尺寸，等于5的实际尺寸。钢结构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)305(mm)最大最小2120.162726.1634333635414046455049h(mm)最大最小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)最大最小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.括号内的规格，尽可能不采用。2.dw的最大尺寸，等于5的实际尺寸。钢结构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)最大最小(公称)13.431317.431721.522123.522325.522528.522831.6231d2(mm)最大(公称)最小2523.73331.44038.44240.44745.45250.45654.1t(mm)最大最小3.32.53.32.54.33.55.34.55.34.56.35.56.35.5c(mm)最大最...
