(高清版)GB∕T 38808-2020 建筑結(jié)構(gòu)用波紋腹板型鋼

ICS77.140.70GB/T38808—2020建筑結(jié)構(gòu)用波紋腹板型鋼國家市場監(jiān)督管理總局國家標(biāo)準(zhǔn)化管理委員會IGB/T38808—2020本標(biāo)準(zhǔn)按照GB/T1.1—2009給出的規(guī)則起草。本標(biāo)準(zhǔn)由中國鋼鐵工業(yè)協(xié)會提出。本標(biāo)準(zhǔn)由全國鋼標(biāo)準(zhǔn)化技術(shù)委員會(SAC/TC183)歸口。本標(biāo)準(zhǔn)起草單位：中冶建筑研究總院有限公司、河北元宏世紀(jì)輕鋼建筑有限責(zé)任公司、山西鋼鐵建設(shè)(集團(tuán))有限公司、山東華舜重工集團(tuán)有限公司、冶金工業(yè)信息標(biāo)準(zhǔn)研究院。1GB/T38808—2020建筑結(jié)構(gòu)用波紋腹板型鋼1范圍本標(biāo)準(zhǔn)適用于建筑結(jié)構(gòu)用波紋腹板型鋼(以下簡稱型鋼)。2規(guī)范性引用文件下列文件對于本文件的應(yīng)用是必不可少的。凡是注日期的引用文件，僅注日期的版本適用于本文件。凡是不注日期的引用文件，其最新版本(包括所有的修改單)適用于本文件。GB/T700—2006碳素結(jié)構(gòu)鋼GB/T1591—2018低合金高強(qiáng)度結(jié)構(gòu)鋼GB/T2975鋼及鋼產(chǎn)品力學(xué)性能試驗(yàn)取樣位置及試樣制備GB/T4171—2008耐候結(jié)構(gòu)鋼GB/T8110氣體保護(hù)電弧焊用碳鋼、低合金鋼焊絲GB/T19879—2015建筑結(jié)構(gòu)用鋼板GB/T20066鋼和鐵化學(xué)成分測定用試樣的取樣和制樣方法GB/T33814焊接H型鋼3代號型鋼的代號為BH,其中“B”為波紋腹板漢語拼音第一位字母，“H”代表型鋼。4訂貨內(nèi)容按本標(biāo)準(zhǔn)訂貨的合同至少應(yīng)包含下列內(nèi)容：a)本標(biāo)準(zhǔn)編號；c)鋼材牌號；d)交貨長度；e)重量和數(shù)量；f)設(shè)計(jì)與使用技術(shù)條件；g)其他特殊要求。25.1.1.1型鋼標(biāo)注符號及截面圖如圖1所示。bf——寬度；tw——翼緣厚度；y-y——垂直中心線。圖1型鋼標(biāo)注符號及截面圖5.1.1.2型鋼的腹板厚度宜不小于2.0mm,其波紋腹板尺寸宜按照表1的要求。型鋼的型號、尺寸、截面面積、理論重量及截面特性參數(shù)等應(yīng)符合附錄A中表A.1的規(guī)定(焊角尺寸h?未列入計(jì)算)。經(jīng)供需雙方協(xié)商，并在合同中注明，也可供應(yīng)其他規(guī)格的型鋼。波紋腹板H型鋼的板件寬厚比應(yīng)根據(jù)鋼材牌號和波紋腹板H型鋼用于結(jié)構(gòu)的類型驗(yàn)算腹板和翼緣的局部穩(wěn)定性，當(dāng)不滿足時(shí)應(yīng)按相關(guān)規(guī)定進(jìn)行驗(yàn)算并采取相應(yīng)措施。表1波紋腹板尺寸單位為毫米分組腹板厚度(tw)腹板高度最大值(hw)腹板波幅(a)單波長度(q)第一組第二組第三組第四組第五組第六組第七組3GB/T38808—20205.1.2.1型鋼的外形及允許偏差應(yīng)符合表2的規(guī)定。允許偏差圖例長度(L)寬度(b?)高度(hw)腹板偏心度翼緣斜度彎曲度≤0.1%L,且≤5.0扭曲度≤hw/250,且≤5.0端部切斜允許偏差≤1.6hw或≤1.6b;且≤3.0翼緣平面度5.1.2.2焊縫焊腳尺寸允許偏差應(yīng)符合表3的規(guī)定；焊縫余高和錯(cuò)邊允許偏差應(yīng)符合表4的規(guī)定。4GB/T38808—2020序號項(xiàng)目示意圖允許偏差1一般全焊透的角接與對接組合焊縫h?不大于,且不大于10mm2需經(jīng)疲勞驗(yàn)算的全焊透的角接與對接組合焊縫h?不大于,且不大于10mm3角焊縫及部分焊透的角接與對接組合焊縫h?小于或等于6mm時(shí)，為0mm～1.5mmh?大于6mm時(shí)，為0mm～3.0mm序號項(xiàng)目示意圖允許偏差三級1對接焊縫余高B小于20mm時(shí)，為0mm~B大于或等于20mm時(shí)，為B小于20mm時(shí)，為0mm~B大于或等于20mm時(shí)，為2對接焊縫錯(cuò)邊小于0.1t,且不大于2.0mm小于0.15t,且不大于3.0mm3角焊縫余高h(yuǎn)?小于等于6mm時(shí)，為0mm～1.5mm;h?大于6mm時(shí)，為0mm～3.0mm5.1.3.1型鋼的通常長度為6000mm～16000mm。5.1.3.2經(jīng)供需雙方協(xié)商，并在合同中注明，可按定尺長度5GB/T38808—20205.2型鋼組裝5.2.1型鋼翼緣板拼接縫和腹板拼接縫的間距應(yīng)不小于200mm,翼緣板拼接長度應(yīng)不小于2倍板寬；腹板拼接寬度應(yīng)不小于300mm;長度應(yīng)不小于600mm。5.2.2型鋼現(xiàn)場對接應(yīng)整體制作分段出廠。5.2.3工廠拼接可采用圖2所示節(jié)點(diǎn)。填板厚度(tw)應(yīng)根據(jù)平腹板高厚比限值控制。說明：hf—-—焊腳高度；tw——腹板厚度。注1:翼緣板的對接采用全熔透等強(qiáng)焊縫。注2:腹板與填板之間、填板與翼緣板之間的焊縫尺寸hf、hq由設(shè)計(jì)得出。圖2工廠拼接節(jié)點(diǎn)示意圖5.3交貨重量型鋼的交貨方式和重量計(jì)算方法由供需雙方協(xié)商確定。5.4標(biāo)記方法及示例部分由其鋼材牌號、鋼材標(biāo)準(zhǔn)號及年號組成。示例：用Q235鋼生產(chǎn)的型號為400×400腹板厚度為3mm,翼緣厚度為10mm,長度為9m的型鋼標(biāo)記為：6技術(shù)要求6.1原材料6.1.1型鋼應(yīng)采用GB/T700—2006中規(guī)定的不低于Q235級別的鋼材或GB/T1591—2018中規(guī)定的Q355、Q390、Q420、Q460級別鋼材。經(jīng)供需雙方協(xié)商并在合同中注明，也可采用其他牌號的鋼材。6.1.2對鋼材的綜合性能要求較高時(shí)，型鋼可采用GB/T19879—2015中規(guī)定的Q235GJ、Q345GJ、Q390GJ和Q420GJ的鋼材。6.1.3型鋼處于外露環(huán)境時(shí)，可采用GB/T4171—2008中規(guī)定的Q235NH和Q355NH的鋼材。6.1.4型鋼成型所用的鋼板尺寸、外形、重量及允許偏差應(yīng)滿足GB/T709的相關(guān)規(guī)定。6波紋腹板的波幅偏差的最大值△?=|a?-a?|與△?=|a?-a?I,應(yīng)不超過2mm,且不超過波幅的1/10,波長偏差最大值△?=|q?-q?|應(yīng)不超過4mm,如圖3所示。圖3波紋腹板成型示意圖6.3.1型鋼應(yīng)采用氣體保護(hù)焊的焊接方式，經(jīng)供需雙方協(xié)商并在合同中注明，也可采用其他方式焊接。6.3.2氣體保護(hù)焊用的焊絲應(yīng)符合GB/T8110的規(guī)定。6.3.3焊接材料應(yīng)與母材強(qiáng)度相匹配。當(dāng)兩種不同強(qiáng)度鋼材相連接時(shí)，應(yīng)采用與低強(qiáng)度鋼材相匹配的焊接材料。6.3.4鋼材不平直應(yīng)予矯直，構(gòu)件有變形應(yīng)予矯正。矯直或矯正時(shí)采取下列措施以保證質(zhì)量：a)頂床矯直時(shí)應(yīng)加放墊模，墊模應(yīng)墊在鋼材(構(gòu)件)受力性能較好的部位，并空出鋼材表面突出物；不應(yīng)使構(gòu)件產(chǎn)生永久變形；b)火焰烘烤時(shí)不應(yīng)澆水，以防鋼材變質(zhì)；c)錘擊矯正時(shí)應(yīng)加錘墊。b)火焰烘烤時(shí)不應(yīng)澆水，以防鋼材變質(zhì)；6.3.5波紋腹板與翼緣板焊接時(shí)，當(dāng)腹板厚度不大于4.0mm時(shí)可采用單面焊縫，當(dāng)腹板厚度大于4.0mm時(shí)應(yīng)采用雙面焊縫。6.3.6角接焊縫尺寸，焊腳高度(h?)取0.6t?(tf為腹板厚度)、0.5tw(tw為翼緣板厚度)中的大者。如設(shè)計(jì)部門對焊腳高度經(jīng)過計(jì)算，則按計(jì)算規(guī)定；焊腳尺寸可比計(jì)算值小1mm;型鋼的最小焊腳高度為6.3.7當(dāng)合同圖紙或技術(shù)條件對焊后消除應(yīng)力有要求時(shí)，應(yīng)對波紋腹板焊接型鋼進(jìn)行消除應(yīng)力處理。6.3.8型鋼的焊縫外觀質(zhì)量應(yīng)符合表5規(guī)定。表5焊縫外觀質(zhì)量檢驗(yàn)項(xiàng)目焊縫質(zhì)量等級一級二級三級不準(zhǔn)許不大于0.2+0.02t,且不大于1mm;每100mm長度焊縫內(nèi)未焊滿累積長度不大于不大于0.2+0.04t,且不大于2mm;每100mm長度焊縫內(nèi)未焊滿累積長度不大于7GB/T38808—2020表5(續(xù))檢驗(yàn)項(xiàng)目焊縫質(zhì)量等級一級二級三級不準(zhǔn)許不大于0.05t,且不大于0.5mm;連續(xù)長度不大于100mm,且焊縫兩側(cè)咬邊總長不大于10%焊縫全長不大于0.1t,且不大于1mm,長度不限不準(zhǔn)許可存在長度不大于5mm的弧坑裂紋電弧擦傷不準(zhǔn)許可存在個(gè)別電弧擦傷接頭不良不準(zhǔn)許每1000mm長度焊縫內(nèi)缺口深度不大于0.05t,且不大于0.5mm不應(yīng)超過1處每1000mm長度焊縫內(nèi)缺口深度不大于0.1t,且不大于1mm不應(yīng)超過1處表面氣孔不準(zhǔn)許每50mm長度焊縫內(nèi)可存在2個(gè)直徑小于0.1t,且不大于3mm的氣孔；孔距應(yīng)不小于6倍孔徑注1:咬邊如經(jīng)磨削修整并平滑過渡，則只按焊縫最小準(zhǔn)許厚度值評定。注2:t---—連接處較薄的板厚。型鋼的化學(xué)成分和翼緣部位的力學(xué)性能應(yīng)符合相應(yīng)產(chǎn)品標(biāo)準(zhǔn)的要求，其他部位的性能由供需雙方協(xié)商。6.5除銹與涂裝防腐7焊接檢驗(yàn)型鋼焊縫檢驗(yàn)按GB/T33814進(jìn)行。經(jīng)供需雙方協(xié)商，并在合同中注明，可進(jìn)行無損檢測和焊縫金相檢測。8檢驗(yàn)規(guī)則8.2組批規(guī)則8.3.1型鋼化學(xué)成分檢驗(yàn)的取樣方法應(yīng)按GB/T20066的有關(guān)規(guī)定執(zhí)行；翼緣部位力學(xué)性能試驗(yàn)取樣8GB/T38808—2020部位、取樣方法應(yīng)按GB/T2975的有關(guān)規(guī)定執(zhí)行，經(jīng)供需雙方協(xié)商并在合同中注明，可在其他部位進(jìn)行取樣；若生產(chǎn)廠能夠提供相應(yīng)的原材料進(jìn)場復(fù)驗(yàn)報(bào)告和可追溯性材料，則成品檢驗(yàn)可不進(jìn)行化學(xué)和力學(xué)9復(fù)驗(yàn)規(guī)則9.1.2型鋼焊縫抽樣檢驗(yàn)，不合格率大于5%時(shí)，該批復(fù)驗(yàn)不合格；不合格率為2%～5%時(shí)，應(yīng)加倍抽檢，且應(yīng)在原不合格部位兩側(cè)的焊縫延長線各增加一處，若所有抽檢焊縫中不合格率不大于3%,則該批復(fù)驗(yàn)合格；大于3%時(shí)，則該批復(fù)驗(yàn)不合格。當(dāng)批量復(fù)驗(yàn)不合格時(shí)，應(yīng)對該批余下焊縫的全數(shù)進(jìn)行檢查。當(dāng)檢查出一處裂紋缺陷時(shí)，應(yīng)加倍檢查，若加倍抽檢焊縫中未檢查出其他裂紋缺陷，則該批復(fù)驗(yàn)合10.1.1型鋼成品應(yīng)標(biāo)有出廠編號、所使用鋼材的牌號及檢查員的符號或鋼字。10.1.2供方應(yīng)對每批型鋼提供質(zhì)量證明書。質(zhì)量證明書應(yīng)注明以下內(nèi)容：a)需方名稱及合同號；b)供方名稱或商標(biāo)；c)型號或尺寸規(guī)格；e)焊接方法及焊工號；f)各項(xiàng)檢驗(yàn)結(jié)果；g)重量及件數(shù)；h)檢驗(yàn)員印記；i)本標(biāo)準(zhǔn)編號。10.1.3除上述規(guī)定外，型鋼的包裝、標(biāo)志及質(zhì)量證明書還應(yīng)符合GB/T2101的有關(guān)規(guī)定。9(規(guī)范性附錄)型號截面尺寸mm截面面積表面積理論重量截面特性參數(shù)y-y軸HBWBH349×1402883848BH349×1502883848BH349×1802883848BH349×2002883848BH349×2102883848BH391×1402883848GB/T38808—2020表A.1(續(xù))型號截面尺寸截面面積表面積cm2/m理論重量kg/m截面特性參數(shù)x-r軸y-y軸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(續(xù))型號截面尺寸mm截面面積表面積cm2/m理論重量kg/m截面特性參數(shù)r-x軸y-y軸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(續(xù))型號截面尺寸截面面積表面積cm2/m理論重量kg/m截面特性參數(shù)x-r軸y-y軸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(續(xù))型號截面尺寸mm截面面積表面積cm2/m理論重量kg/m截面特性參數(shù)r-x軸y-y軸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(續(xù))型號截面尺寸截面面積表面積cm2/m理論重量kg/m截面特性參數(shù)x-r軸y-y軸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(續(xù))型號截面尺寸mm截面面積表面積cm2/m理論重量kg/m截面特性參數(shù)y-y軸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(續(xù))型號截面尺寸截面面積表面積cm2/m理論重量kg/m截面特性參數(shù)x-r軸y-y軸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(續(xù))型號截面尺寸mm截面面積表面積cm2/m理論重量kg/m截面特性參數(shù)y-y軸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(續(xù))型號截面尺寸截面面積表面積cm2/m理論重量kg/m截面特性參數(shù)x-r軸y-y軸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.