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ID:18855132
大小:16.81 MB
页数:189页
时间:2018-09-26
《建筑钢结构焊接技术规程-正文》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、1GeneralPrinciples1.0.1Thisspecificationispreparedtoimplementthenationaltechnicalandeconomicalpoliciesinsteelstructureengineeringandtomakesurethatthespecificationisadvancedintechnology,rationalineconomics,secureandapplicableinpractice,quality-ensured.1.0.2Thisspecificationfitsforthewel
2、dingofstructuralcarbonsteelandlowalloy,highstrengthstructuralsteelofwhichthethicknessisgreaterthanorequalto3mm,whicharewidelyusedinindustrialandcivilarchitectureandstructuralsteelworkingeneralarchitecturessuchastrussorspatialgridstructure,multilayerandhigh-risebeam-columnstructure,andt
3、hewelding.Theweldingmethodsappliedincludesmanualarcwelding,gas-shieldedwelding,selfprotectionwelding,hiddenarcwelding,electroslagwelding,electrogasarcwelding,cotterweldinganditscorrespondingweldingmethodcombination.1.0.3Theweldingofstructuralsteelshouldconformtotheregulationsoftheexist
4、ingsafetytechnologyandlaborprotection.1.0.4Inadditiontothepresentspecification,theweldingofasteelstructureshouldconformtotheexistingnationalmandatorystandards.1892BasicProvisions2.0.1Thedifficultwithsteelstructuralengineeringforbuildingcanbedividedintoaverage,relativelydifficultanddiff
5、icult.Beforeundertakingaweldingworkforstructuralsteelengineering,aconstructionorganizationshouldbeprovidedwithcertaintechnicalconditionscorrespondingtotheweldingdifficulties.Thedifficultwithsteelstructuralengineeringforbuildingcanbedifferentiatedasinthefollowingtable.Table2.0.1Criterio
6、nsfordifferentiatingweldingdifficultieswithsteelstructureforbuildingAffectingfactorsofweldingdifficultiesWeldingdifficultyNodecomplexityandconstraintSheetThickness(mm)strainedconditionCarbonequivalentofsteel①(%)GeneralSimplebuttjoint,anglejoint;weldseamcancontractfreelyt<30Tensionandco
7、mpressunforgeneralstaticload
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