AWS-D1.1-Rev.1美国焊接标准

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AWSD1.1StructuralWeldingCode-SteelBureauVeritas2AllrightsreservedBVI&FChina1Scope范围►1.1AWSD1.1ScopeThiscodecontainstherequirementsforfabricatinganderectingweldedsteelstructures►1)GeneralRequirements►2)DesignofWeldedConnections►3)PrequalificationofWPSs►4)Qualification►5)Fabrication►6)Inspection►7)StudWelding►8)StrengtheningandRepairingExistingStructures3AllrightsreservedBVI&FChina1Scope范围1.2Thecodeisnotintendedtobeusedforthefollowing下列情况不适用于AWSD1.1:►(1)Steelswithaminimumspecifiedyieldstrengthgreaterthan100ksi[690MPa]最小屈服强度大于690MPa的钢材;►(2)Steelslessthan1/8in.[3mm]thick.厚度小于3mm的钢材;►(3)Pressurevesselsorpressurepiping压力容器或压力管道;►(4)Basemetalsotherthancarbonorlow-alloysteels.碳钢和低合金钢之外的材料4AllrightsreservedBVI&FChina2规范引用文件►1)AWSA3.0Standardweldingtermsanddefinitions.►2)AWSA2.4Symbolsforwelding,brazing,andnondestructiveexamination►3)ASTMA370Mechanicaltestingofsteelproducts►4)AWSelectrodespecifications(A5.1-A5.30)►5)ASNTrecommendedpracticeno.SNT-TC-1A►6)ASTME165Testmethodforliquidpenetrantexamination►7)ASTME709Guideformagneticpracticeinspection►8)ASTME1032Radiographicexaminationofweldments……5AllrightsreservedBVI&FChina3一般规定►3.1总要求Whenthiscodeisstipulatedincontractdocuments,conformancewithallprovisionsofthecodeshallberequired,exceptforthoseprovisionsthattheEngineerorcontractdocumentsspecificallymodifiesorexempts.6AllrightsreservedBVI&FChina3一般规定►3.2企业及焊接人员►3.2.1TheContractorshallberesponsibleforWPSs,qualificationofweldingpersonnel,theContractor’sinspection,andperformingworkinconformancewiththerequirementsofthiscodeandcontractdocuments.►3.2.2TheEngineershallberesponsibleforthedevelopmentofthecontractdocumentsthatgovernproductsorstructuralassembliesproducedunderthiscode.TheEngineermayaddto,deletefrom,orotherwisemodify,therequirementsofthiscodetomeettheparticularrequirementsofaspecificstructure.Allrequirementsthatmodifythiscodeshallbeincorporatedintocontractdocuments.7AllrightsreservedBVI&FChina3一般规定►3.2.3Inspector’sResponsibilitiesContractorinspectionshallbesuppliedbytheContractorandshallbeperformedasnecessarytoensurethatmaterialsandworkmanshipmeettherequirementsofthecontractdocuments.►3.2.4Welders,weldingoperatorsandtackwelderstobeemployedunderthiscode,andusingtheshieldedarcweldingSMAW,SAW,GMAW,GTAW,FCAW,ESW,orEGWprocesses,shallhavebeenqualifiedbytheapplicabletestsasdescribedinPartCofthissection8AllrightsreservedBVI&FChina3一般规定►3.3材料►3.3.1钢材Thecontractdocumentsshalldesignatethespecificationandclassificationofbasemetaltobeused.Whenweldingisinvolvedinthestructure,approvedbasemetals,listedinTable3.1orAnnexM,shouldbeusedwhereverpossible.9AllrightsreservedBVI&FChina3一般规定►3.3.2焊接材料A)WhenrequestedbytheEngineer,theContractororfabricatorshallfurnishcertificationthattheelectrodeorelectrode-fluxcombinationconformstotherequirementsoftheclassification.B)Theclassificationandsizeofelectrode,arclength,voltage,andamperageshallbesuitedtothethicknessofthematerial,typeofgroove,weldingpositions,andothercircumstancesattendingthework.Weldingcurrentshallbewithintherangerecommendedbytheelectrodemanufacturer.10AllrightsreservedBVI&FChina3一般规定►3.3.2焊接材料C)Weldingconsumablesthathavebeenremovedfromtheoriginalpackageshallbeprotectedandstoredsothattheweldingpropertiesarenotaffected.D)Electrodesshallbedryandinsuitableconditionforuse.►3.3.2焊接气体Agasorgasmixtureusedforshieldingshallbeofaweldinggradeandhaveadewpointof–40°F[–40°C]orlower.WhenrequestedbytheEngineer,theContractororfabricatorshallfurnishthegasmanufacturer’scertificationthatthegasorgasmixtureconformstothedewpointrequirements.Whenmixedattheweldingsite,suitablemetersshallbeusedforproportioningthegases.PercentageofgasesshallconformtotherequirementsoftheWPS.11AllrightsreservedBVI&FChina3一般规定►3.4焊接设备Allweldingandthermal-cuttingequipmentshallbesodesignedandmanufactured,andshallbeinsuchcondition,astoenabledesignatedpersonneltofollowtheproceduresandattaintheresultsdescribedelsewhereinthiscode.12AllrightsreservedBVI&FChina4坡口制备及组对要求►4.1一般要求Machining,thermalcutting,gouging,chipping,orgrindingmaybeusedforjointpreparation,ortheremovalofunacceptableworkormetal,exceptthatoxygengougingshallnotbeusedonsteelsthatareorderedasquenchedandtemperedornormalized.Electricarccuttingandgougingprocessesandoxyfuelgascuttingprocessesarerecognizedunderthiscodeforuseinpreparing,cutting,ortrimmingmaterials.13AllrightsreservedBVI&FChina4坡口制备及组对要求►4.2焊口组对Thepartstobejoinedbyfilletweldsshallbebroughtintoasclosecontactaspracticable.Therootopeningshallnotexceed3/16in.[5mm].ThepartstobejoinedbyPJPgrooveweldsparalleltothelengthofthemembershallbebroughtintoasclosecontactaspracticable.Therootopeningbetweenpartsshallnotexceed3/16in.[5mm].14AllrightsreservedBVI&FChina4坡口制备及组对要求►ButtJointAlignment.Partstobejoinedatbuttjointsshallbecarefullyaligned.Wherethepartsareeffectivelyrestrainedagainstbendingduetoeccentricityinalignment,theoffsetfromthetheoreticalalignmentshallnotexceed10%ofthethicknessofthethinnerpartjoined,or1/8in.[3mm],whicheverissmaller.►Rootopeningsgreaterthanthoseallowedin5.22.4.1,butnotgreaterthantwicethethicknessofthethinne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