(高清版)GB∕T 38808-2020 建筑结构用波纹腹板型钢

ICS77.140.70GB/T38808—2020建筑结构用波纹腹板型钢国家市场监督管理总局国家标准化管理委员会IGB/T38808—2020本标准按照GB/T1.1—2009给出的规则起草。本标准由中国钢铁工业协会提出。本标准由全国钢标准化技术委员会(SAC/TC183)归口。本标准起草单位：中冶建筑研究总院有限公司、河北元宏世纪轻钢建筑有限责任公司、山西钢铁建设(集团)有限公司、山东华舜重工集团有限公司、冶金工业信息标准研究院。1GB/T38808—2020建筑结构用波纹腹板型钢1范围本标准适用于建筑结构用波纹腹板型钢(以下简称型钢)。2规范性引用文件下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件，仅注日期的版本适用于本文件。凡是不注日期的引用文件，其最新版本(包括所有的修改单)适用于本文件。GB/T700—2006碳素结构钢GB/T1591—2018低合金高强度结构钢GB/T2975钢及钢产品力学性能试验取样位置及试样制备GB/T4171—2008耐候结构钢GB/T8110气体保护电弧焊用碳钢、低合金钢焊丝GB/T19879—2015建筑结构用钢板GB/T20066钢和铁化学成分测定用试样的取样和制样方法GB/T33814焊接H型钢3代号型钢的代号为BH,其中“B”为波纹腹板汉语拼音第一位字母，“H”代表型钢。4订货内容按本标准订货的合同至少应包含下列内容：a)本标准编号；c)钢材牌号；d)交货长度；e)重量和数量；f)设计与使用技术条件；g)其他特殊要求。25.1.1.1型钢标注符号及截面图如图1所示。bf——宽度；tw——翼缘厚度；y-y——垂直中心线。图1型钢标注符号及截面图5.1.1.2型钢的腹板厚度宜不小于2.0mm,其波纹腹板尺寸宜按照表1的要求。型钢的型号、尺寸、截面面积、理论重量及截面特性参数等应符合附录A中表A.1的规定(焊角尺寸h₁未列入计算)。经供需双方协商，并在合同中注明，也可供应其他规格的型钢。波纹腹板H型钢的板件宽厚比应根据钢材牌号和波纹腹板H型钢用于结构的类型验算腹板和翼缘的局部稳定性，当不满足时应按相关规定进行验算并采取相应措施。表1波纹腹板尺寸单位为毫米分组腹板厚度(tw)腹板高度最大值(hw)腹板波幅(a)单波长度(q)第一组第二组第三组第四组第五组第六组第七组3GB/T38808—20205.1.2.1型钢的外形及允许偏差应符合表2的规定。允许偏差图例长度(L)宽度(b₆)高度(hw)腹板偏心度翼缘斜度弯曲度≤0.1%L,且≤5.0扭曲度≤hw/250,且≤5.0端部切斜允许偏差≤1.6hw或≤1.6b;且≤3.0翼缘平面度5.1.2.2焊缝焊脚尺寸允许偏差应符合表3的规定；焊缝余高和错边允许偏差应符合表4的规定。4GB/T38808—2020序号项目示意图允许偏差1一般全焊透的角接与对接组合焊缝h₁不大于,且不大于10mm2需经疲劳验算的全焊透的角接与对接组合焊缝h₁不大于,且不大于10mm3角焊缝及部分焊透的角接与对接组合焊缝h₁小于或等于6mm时，为0mm～1.5mmh₁大于6mm时，为0mm～3.0mm序号项目示意图允许偏差三级1对接焊缝余高B小于20mm时，为0mm~B大于或等于20mm时，为B小于20mm时，为0mm~B大于或等于20mm时，为2对接焊缝错边小于0.1t,且不大于2.0mm小于0.15t,且不大于3.0mm3角焊缝余高h₁小于等于6mm时，为0mm～1.5mm;h₁大于6mm时，为0mm～3.0mm5.1.3.1型钢的通常长度为6000mm～16000mm。5.1.3.2经供需双方协商，并在合同中注明，可按定尺长度5GB/T38808—20205.2型钢组装5.2.1型钢翼缘板拼接缝和腹板拼接缝的间距应不小于200mm,翼缘板拼接长度应不小于2倍板宽；腹板拼接宽度应不小于300mm;长度应不小于600mm。5.2.2型钢现场对接应整体制作分段出厂。5.2.3工厂拼接可采用图2所示节点。填板厚度(tw)应根据平腹板高厚比限值控制。说明：hf—-—焊脚高度；tw——腹板厚度。注1:翼缘板的对接采用全熔透等强焊缝。注2:腹板与填板之间、填板与翼缘板之间的焊缝尺寸hf、hq由设计得出。图2工厂拼接节点示意图5.3交货重量型钢的交货方式和重量计算方法由供需双方协商确定。5.4标记方法及示例部分由其钢材牌号、钢材标准号及年号组成。示例：用Q235钢生产的型号为400×400腹板厚度为3mm,翼缘厚度为10mm,长度为9m的型钢标记为：6技术要求6.1原材料6.1.1型钢应采用GB/T700—2006中规定的不低于Q235级别的钢材或GB/T1591—2018中规定的Q355、Q390、Q420、Q460级别钢材。经供需双方协商并在合同中注明，也可采用其他牌号的钢材。6.1.2对钢材的综合性能要求较高时，型钢可采用GB/T19879—2015中规定的Q235GJ、Q345GJ、Q390GJ和Q420GJ的钢材。6.1.3型钢处于外露环境时，可采用GB/T4171—2008中规定的Q235NH和Q355NH的钢材。6.1.4型钢成型所用的钢板尺寸、外形、重量及允许偏差应满足GB/T709的相关规定。6波纹腹板的波幅偏差的最大值△₁=|a₁-a₂|与△₂=|a₁-a₃I,应不超过2mm,且不超过波幅的1/10,波长偏差最大值△₃=|q₁-q₂|应不超过4mm,如图3所示。图3波纹腹板成型示意图6.3.1型钢应采用气体保护焊的焊接方式，经供需双方协商并在合同中注明，也可采用其他方式焊接。6.3.2气体保护焊用的焊丝应符合GB/T8110的规定。6.3.3焊接材料应与母材强度相匹配。当两种不同强度钢材相连接时，应采用与低强度钢材相匹配的焊接材料。6.3.4钢材不平直应予矫直，构件有变形应予矫正。矫直或矫正时采取下列措施以保证质量：a)顶床矫直时应加放垫模，垫模应垫在钢材(构件)受力性能较好的部位，并空出钢材表面突出物；不应使构件产生永久变形；b)火焰烘烤时不应浇水，以防钢材变质；c)锤击矫正时应加锤垫。b)火焰烘烤时不应浇水，以防钢材变质；6.3.5波纹腹板与翼缘板焊接时，当腹板厚度不大于4.0mm时可采用单面焊缝，当腹板厚度大于4.0mm时应采用双面焊缝。6.3.6角接焊缝尺寸，焊脚高度(h₁)取0.6t₁(tf为腹板厚度)、0.5tw(tw为翼缘板厚度)中的大者。如设计部门对焊脚高度经过计算，则按计算规定；焊脚尺寸可比计算值小1mm;型钢的最小焊脚高度为6.3.7当合同图纸或技术条件对焊后消除应力有要求时，应对波纹腹板焊接型钢进行消除应力处理。6.3.8型钢的焊缝外观质量应符合表5规定。表5焊缝外观质量检验项目焊缝质量等级一级二级三级不准许不大于0.2+0.02t,且不大于1mm;每100mm长度焊缝内未焊满累积长度不大于不大于0.2+0.04t,且不大于2mm;每100mm长度焊缝内未焊满累积长度不大于7GB/T38808—2020表5(续)检验项目焊缝质量等级一级二级三级不准许不大于0.05t,且不大于0.5mm;连续长度不大于100mm,且焊缝两侧咬边总长不大于10%焊缝全长不大于0.1t,且不大于1mm,长度不限不准许可存在长度不大于5mm的弧坑裂纹电弧擦伤不准许可存在个别电弧擦伤接头不良不准许每1000mm长度焊缝内缺口深度不大于0.05t,且不大于0.5mm不应超过1处每1000mm长度焊缝内缺口深度不大于0.1t,且不大于1mm不应超过1处表面气孔不准许每50mm长度焊缝内可存在2个直径小于0.1t,且不大于3mm的气孔；孔距应不小于6倍孔径注1:咬边如经磨削修整并平滑过渡，则只按焊缝最小准许厚度值评定。注2:t---—连接处较薄的板厚。型钢的化学成分和翼缘部位的力学性能应符合相应产品标准的要求，其他部位的性能由供需双方协商。6.5除锈与涂装防腐7焊接检验型钢焊缝检验按GB/T33814进行。经供需双方协商，并在合同中注明，可进行无损检测和焊缝金相检测。8检验规则8.2组批规则8.3.1型钢化学成分检验的取样方法应按GB/T20066的有关规定执行；翼缘部位力学性能试验取样8GB/T38808—2020部位、取样方法应按GB/T2975的有关规定执行，经供需双方协商并在合同中注明，可在其他部位进行取样；若生产厂能够提供相应的原材料进场复验报告和可追溯性材料，则成品检验可不进行化学和力学9复验规则9.1.2型钢焊缝抽样检验，不合格率大于5%时，该批复验不合格；不合格率为2%～5%时，应加倍抽检，且应在原不合格部位两侧的焊缝延长线各增加一处，若所有抽检焊缝中不合格率不大于3%,则该批复验合格；大于3%时，则该批复验不合格。当批量复验不合格时，应对该批余下焊缝的全数进行检查。当检查出一处裂纹缺陷时，应加倍检查，若加倍抽检焊缝中未检查出其他裂纹缺陷，则该批复验合10.1.1型钢成品应标有出厂编号、所使用钢材的牌号及检查员的符号或钢字。10.1.2供方应对每批型钢提供质量证明书。质量证明书应注明以下内容：a)需方名称及合同号；b)供方名称或商标；c)型号或尺寸规格；e)焊接方法及焊工号；f)各项检验结果；g)重量及件数；h)检验员印记；i)本标准编号。10.1.3除上述规定外，型钢的包装、标志及质量证明书还应符合GB/T2101的有关规定。9(规范性附录)型号截面尺寸mm截面面积表面积理论重量截面特性参数y-y轴HBWBH349×1402883848BH349×1502883848BH349×1802883848BH349×2002883848BH349×2102883848BH391×1402883848GB/T38808—2020表A.1(续)型号截面尺寸截面面积表面积cm²/m理论重量kg/m截面特性参数x-r轴y-y轴HBWiWBH391×1502831.5025.7988034504504.33833.3827.5288034504504.333835.2529.2688034504504.334839.0032.7388034504504.33BH391×1802836.3029.56838.1831.293840.0533.034843.8036.50BH391×2002839.5032.07841.3833.803843.2535.544847.0039.01BH391×2102841.1033.326.06842.9835.066.063844.8536.806.064848.6040.276.06BH395×180243.5035.2145.3836.94347.2538.68451.0042.15BH395×200247.5038.3549.3840.08351.2541.82455.0045.29BH395×210249.5039.926.0651.3841.656.06353.2543.396.06457.0046.866.06BH395×220251.5041.496.3553.3843.226.35355.2544.966.35459.0048.436.35表A.1(续)型号截面尺寸mm截面面积表面积cm²/m理论重量kg/m截面特性参数r-x轴y-y轴HBWiWBH395×240255.5044.6323046.9357.3846.3623046.93359.2548.1023046.93463.0051.5723046.93BH395×250257.5046.20260459.3847.932604361.2549.672604465.0053.142604BH433×1804332837.1430.3321.25433839.2332.2621.254333841.3134.2021.254334845.4838.0621.25BH433×2004332840.3432.8521.25433842.4334.7821.254333844.5136.7121.254334848.6840.5721.25BH433×2104332841.9434.1021.256.06433844.0336.0321.256.064333846.1137.9621.256.064334850.2841.8321.256.06BH437×180437244.3435.9921.3543746.4337.9221.35437348.5139.8521.35437452.6843.7121.35BH437×200437248.3439.1321.3543750.4341.0621.35437352.5142.9921.35437456.6846.8521.35BH437×210437250.3440.7021.356.0643752.4342.6321.356.06437354.5144.5621.356.06437458.6848.4221.356.06GB/T38808—2020表A.1(续)型号截面尺寸截面面积表面积cm²/m理论重量kg/m截面特性参数x-r轴y-y轴HBWiWBH437×220437252.3442.272006021.356.3543754.4344.202006021.356.35437356.5146.132006021.356.35437460.6849.992006021.356.35BH437×240437256.3445.412188321.3523046.9343758.4347.342188321.3523046.93437360.5149.272188321.3523046.93437464.6853.132188321.3523046.93BH437×250437258.3420201.246.982279521.35260443760.4320191.248.912279521.352604437362.5120181.250.842279521.352604437466.6820161.254.702279521.352604BH516×1802838.8031.8725.40841.3034.1925.403843.8036.5025.404848.8041.1325.40BH516×2002842.002008034.382064725.40844.502007036.702064725.403847.002006039.012064725.404852.002004043.652064725.40BH516×2102843.602048035.642167925.406.06846.102047037.952167925.406.063848.602046040.272167925.406.064853.602044044.902167925.406.06BH520×180246.0037.522341225.5048.5039.842341225.50351.0042.152341225.50456.0046.792341225.50BH520×200250.002016040.662601325.5052.502015042.982601325.50355.002014045.292601325.50460.002012049.932601325.50表A.1(续)型号截面尺寸mm截面面积表面积cm²/m理论重量kg/m截面特性参数r-x轴y-y轴HBWiWBH520×210252.002056042.232731425.506.0654.502055044.552731425.506.06357.002054046.862731425.506.06462.002052051.502731425.506.06BH520×220254.002096043.802861525.506.3556.502095046.122861525.506.35359.002094048.432861525.506.35464.002092053.072861525.506.35BH520×240258.002176046.943121625.5023046.9360.502175049.263121625.5023046.93363.002174051.573121625.5023046.93468.002172056.213121625.5023046.93BH520×250260.002216048.513251725.50260462.502215050.833251725.502604365.002214053.143251725.502604470.002212057.783251725.502604BH524×250270.002224056.363932925.6072.502223058.683932925.60375.002222060.993932925.60480.002220065.633932925.60BH524×280277.202344062.024404825.6043908.0879.702343064.334404825.6043908.08382.202342066.654404825.6043908.08487.202340071.284404825.6043908.08BH524×300282.002424065.784719525.608.6684.502423068.104719525.608.66387.002422070.414719525.608.66492.002420075.054719525.608.66BH641×2002844.502303036.703205731.65847.632302039.593205731.653850.752301042.493205731.654857.002299048.283205731.65GB/T38808—2020表A.1(续)型号截面尺寸截面面积表面积cm²/m理论重量kg/m截面特性参数x-r轴y-y轴HBWiWBH641×2102846.102343037.953366031.656.06849.232342040.853366031.656.063852.352341043.743366031.656.064858.602339049.533366031.656.06BH645×200252.502311042.984032631.7555.632310045.874032631.75358.752309048.774032631.75465.002307054.564032631.75BH645×210254.502351044.554234231.756.0657.632350047.444234231.756.06360.752349050.344234231.756.06467.002347056.134234231.756.06BH645×220256.502391046.124435831.756.3559.632390049.014435831.756.35362.752389051.914435831.756.35469.002387057.704435831.756.35BH645×240260.502471049.264839131.7523046.9363.632470052.154839131.7523046.93366.752469055.054839131.7523046.93473.002467060.844839131.7523046.93BH645×250262.502511050.835040731.75260465.632510053.725040731.752604368.752509056.625040731.752604475.002507062.415040731.752604BH649×200260.502319049.264869831.8563.632318052.154869831.85366.752317055.054869831.85473.002315060.844869831.85BH649×210262.902359051.145113331.856.0666.032358054.045113331.856.06369.152357056.935113331.856.06475.402355062.725113331.856.06表A.1(续)型号截面尺寸mm截面面积表面积cm²/m理论重量kg/m截面特性参数y-y轴HBWiWBH649×220265.302399053.035356831.8521306.3568.432398055.925356831.8521306.35371.552397058.825356831.8521306.35477.802395064.615356831.8521306.35BH649×240270.102479056.795843831.8527656.9373.232478059.695843831.8527656.93376.352477062.585843831.8527656.93482.602475068.375843831.8527656.93BH649×250272.502519058.686087331.8575.632518061.576087331.85378.752517064.476087331.85485.002515070.266087331.85BH649×270277.302599062.4565742202631.8580.432598065.3465742202631.85383.552597068.2465742202631.85489.802595074.0365742202631.85BH649×300284.502719068.1073047225131.858.6687.632718070.9973047225131.858.66390.752717073.8973047225131.858.66497.002715079.6873047225131.858.66BH766×2102848.602638040.274826537.906.06852.352637043.744826537.906.063856.102636047.224826537.906.064863.602634054.174826537.906.06BH770×210257.002646046.866065238.006.0660.752645050.346065238.006.06364.502644053.816065238.006.06472.002642060.766065238.006.06BH770×220259.002686048.436354038.006.3562.752685051.916354038.006.35366.502684055.386354038.006.35474.002682062.336354038.006.35GB/T38808—2020表A.1(续)型号截面尺寸截面面积表面积cm²/m理论重量kg/m截面特性参数x-r轴y-y轴HBWiWBH770×240263.002766051.576931638.0023046.9366.752765055.056931638.0023046.93370.502764058.526931638.0023046.93478.002762065.476931638.0023046.93BH770×250265.002806053.147220438.00260468.752805056.627220438.002604372.502804060.097220438.002604480.002802067.047220438.002604BH774×210265.402654053.467316738.106.0669.152653056.937316738.106.06372.902652060.417316738.106.06480.402650067.357316738.106.06BH774×220267.802694055.347665138.1021306.3571.552693058.827665138.1021306.35375.302692062.297665138.1021306.35482.802690069.247665138.1021306.35BH774×240272.602774059.1183620216138.1027656.9376.352773062.5883620216138.1027656.93380.102772066.0683620216138.1027656.93487.602770073.0183620216138.1027656.93BH774×250275.002814060.9987104225138.1078.752813064.4787104225138.10382.502812067.9487104225138.10490.002810074.8987104225138.10BH774×270279.802894064.7694072243138.1083.552893068.2494072243138.10387.302892071.7194072243138.10494.802890078.6694072243138.10BH774×300287.003014070.41270138.108.6690.753013073.89270138.108.66394.503012077.36270138.108.6643010084.31270138.108.66表A.1(续)型号截面尺寸mm截面面积表面积cm²/m理论重量kg/m截面特性参数y-y轴HBWiWBH778×220276.602702062.2589899231138.2024856.3580.352701065.7289899231138.2024856.35384.102700069.2089899231138.2024856.35491.602698076.1589899231138.2024856.35BH778×240282.202782066.6598072252138.206.9385.952781070.1298072252138.206.93389.702780073.5998072252138.206.93497.202778080.5498072252138.206.93BH778×250285.002822068.84262638.2088.752821072.32262638.20392.502820075.79262638.2042818082.74262638.20BH778×270290.602902073.24283638.20459394.352901076.71283638.204593398.102900080.19283638.20459342898087.14283638.204593BH778×300299.003022079.8338.2063004208.663021083.3138.2063004208.6633020086.7838.2063004208.6643018093.7338.2063004208.66BH778×36023262093.0238.203261096.5038.2033260099.9738.2043258038.20BH1004×450450241539.235144349.402430045041529.235144349.4024300450341519.235144349.4024300450441499.235144349.4024300BH1008×450450241619.239698449.502733845041609.239698449.5027338450341599.239698449.50273384504200.8841579.239698449.5027338GB/T38808—2020表A.1(续)型号截面尺寸截面面积表面积cm²/m理论重量kg/m截面特性参数x-r轴y-y轴HBWiW23612084.47215935420150.7063004208.663611089.10215935420150.7063004208.6633610093.73215935420150.7063004208.66436080215935420150.7063004208.6623852097.6525912250.703851025912250.7033850025912250.7043848025912250.7040024012028791350.704004011028791350.7040034010028791350.7040044008028791350.7023620093.89247762480250.804808.663619098.52247762480250.804808.66336180247762480250.804808.66436160247762480250.804808.6623860029731450.803859029731450.8033858029731450.8043856029731450.80400240200330349640250.8040040190330349640250.80400340180330349640250.80400440160330349640250.8023628027983750.9081008.663627027983750.9081008.6633626027983750.9081008.6643624027983750.9081008.66238680335804648350.9038670335804648350.