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1、Good is good, but better carries it.精益求精，善益求善。GB50205-2001钢结构工程施工质量验收规范-UDC中华人民共和国国家标准GBStateStandardofPRCPGB502052001钢结构工程施工质量验收规范CodeforAcceptanceofConstructionQualityofSteelStructures20020110发布20020301实施IssuedonJan.1,2002ExecutedonMar.1,2002中华人民共和国国家质量监督检验检疫总局联合发布中华人民共和国建设部IssuedjointlybytheGener
2、alAdministrationofQualitySupervision,InspectionandQuarantineofPRCandtheConstructionMinistryofPRC中华人民和国国家标准StandStandardofPRC钢结构工程施工质量验收规范CodeofAcceptanceofConstructionQualityofSteelStructuresGB502052001主编部门：中华人民和国建设部MainlycompiledbytheConstructionMinistryofPRC批准部门：中华人民和国建设部ApprovedbytheConstructionM
3、inistryofPRC实行日期：2002年3月1日EffectiveDate:Mar.1,2002中国计划出版社ChinaPlanningPublishingHouse2001北京(Beijing,2001)StandStandardofPRCCodeofAcceptanceofConstructionQualityofSteelStructuresGB502052001MainlycompiledbytheConstructionMinistryofPRCApprovedbytheConstructionMinistryofPRCEffectiveDate:Mar.1,2002Issued
4、bytheChinaPlanningPublishingHouse(Address:4thFloor,CSectionofGuohongBuilding,No.11FirstSectionofNorthMuxidiLane,WestDistrictofBeijingCity)(Postcode:100038;Tel:6390643,or63906414)DistributedbytheBeijingDistributionHouseofXinhuaBookstorePrintedbytheWorldKnowledgePrintingFactoryNoticeontheIssueoftheSta
5、teStandardoftheCodeofAcceptanceofConstructionQualityofSteelStructuresConstructionStandardNo.112002AccordingtotheNoticeontheIssueofthePlanofPreparingandRevisingtheConstructionStandardsduring2000-2001(DocumentNo.872001,issuedbytheConstructionMinistry),theCodeofAcceptanceofConstructionQualityofSteelStr
6、uctures,compiledjointlybytheGeneralArchitectureResearchInstituteofMetallurgyMinistryandotherrelatedorganizations,hasbeenreviewedbytherelatedorganizationsandapprovedtobethestatestandardandnumberasGB502052001.ThisCodewillbeputinforceonMar.1,2002.Inthiscode,themandatoryclausesinclude4.2.1,4.3.1,4.4.1,5
7、.2.2,5.2.4,6.3.1,8.3.1,10.3.4,11.3.5,12.3.4,14.2.2and14.3.3,whichshallbecompliedwithstrictly.Moreover,thepreviousversionoftheCodeofAcceptanceofConstructionQualityofSteelStructures(GB50205-95)andtheStandardofInspectionandAssesmentofConstructionQualityofSteelStructures(GB50221-95),aretobeabrogatedonth
8、esamedate.TheadministrationofthiscodeaswellastheexplanationofthemandatoryclausesinthisCodearetobepresidedoverbytheConstructionMinistry;theinterpretationofthespecifictechnicalcontentbytheGeneralArchitectureResearchInstituteofMetallurgyMinistry;andtheissue/publicationofthisCodejointlybytheStandard&Nor
9、mInstituteofConstructionMinistryandtheChinaPlanningPublishingHouse.TheConstructionMinistryofPRCJan.10,2002PrefaceThisCodewascompiledbyrevisingtheCodeofAcceptanceofConstructionQualityofSteelStructures(GB50205-95)andtheStandardofInspectionandAssesmentofConstructionQualityofSteelStructures(GB50221-95),
10、jointlybytheGeneralArchitectureResearchInstituteofMetallurgyMinistryandotherrelatedorganizations,andaccordingtotheNoticeontheIssueofthePlanofPreparingandRevisingtheConstructionStandardsduring2000-2001(DocumentNo.872001,issuedbytheConstructionMinistry).Duringtherevision,theteamresponsibleforthecompil
11、ecarriedoutextensivesurveys,andsummarizedthepracticalexperiencesontheacceptanceofconstructionqualityofsteelstructuresinChina,andtookthecurrentversionofthestatestandardoftheUniformStandardofAcceptanceofConstructionQualityofSteelStructures(GB50300)asthebasisandreviseditallsidedlyaccordingtotheguidelin
12、eof“performingtheinspectionandevaluationseparately,enhancingtheacceptance,perfectingthemethods/measures,andcontrollingtheprocedures”,andchangedthekeyitemsseveraltimes,andsoughtrecommendationswidelyfromtherelatedorganizationsandexpertsbyvariousways,andfinalizedthetextofthisCodeafterthefinalreview.Thi
13、scodeisdividedinto15chapters,includingGeneral,Terms,Symbols,BasicRequirements,AdmittanceofRawMaterialsandFinishedProducts,WeldingWork,ConnectionWorkofFasteners,ProcessingWorkofSteelPartsandCopperComponents,AssemblyWorkofSteelElements,TestAssemblingWorkofSteelElements,InstallationWorkofSingle-layerSt
14、eelElements,InstallationWorkofMultilayerorHighSteelElements,InstallationWorkofNet-typeSteelStructures,PreparationandInstallationWorkofMetalContourPlates,CoatingWorkofSteelStructures,AcceptanceofSubitem-worksofSteelStructures,and9appendixes.TheWorkofSteelStructuresisdividedinto10subitem-worksinprinci
15、ple,whicharepresentedinseparatechaptersrespectively.ThoughtheAdmittanceofRawMaterialsandFinishedProductsisntoneofthesubitem-works,itispresentedinoneindependentchapter,aimingatemphasizingandenhancingtheimportanceoftheadmittanceinspectionofrawmaterialsandfinishedproductsandthereforeensuringtheconstruc
16、tionqualitybycontrollingthequalityofthesource.Additionally,theAcceptanceofSubitem-worksofSteelStructuresisalsopresentedinanindependentchapterinordertoprovidefurtherconveniencefortheoperationoftheacceptanceofconstructionquality.ThisCodemayberevisedwherenecessaryinthefuture.Theinformationabouttherevis
17、ionofanypartsofthisCodeandtherevisedclauseswillbepublishedontheStandardizationofConstruction(onemagazine).ThisCodesclauseshighlightedinboldfacearemandatoryclauses.InordertoimprovethequalityofthisCode,therelatedorganizationsshallpayattentiontosummarizetherelatedexperienceandaccumulatedtherelatedinfor
18、mation,andshall,atanytime,feedtherelatedrecommendationsbacktotheGeneralArchitectureResearchInstituteofMetallurgyMinistrylocatedatNo.33TuchengRoad,HaidianDistrict,Beijing,100088)toprovidethereferenceforfuturerevision.ThisCodewasmainlycompiledbytheGeneralArchitectureResearchInstituteofMetallurgyMinist
19、ry.TheorganizationsassistingthecompileofthisCodeincludethefollowing:WuhanSteelStructuresCo.,Ltd;BeijingGeneralInstituteofIronandSteelDesign;ChinaJingyeConstructionEngineeringContractYuandaConstructionSupervisionCompanyofBeijingCity;ShenzhenJianshengheSteelStructureConstructionEngineeringCo,LtdofChin
20、aConstructionThirdBureau;MechanicalConstructionCompanyofBeijngCity;ZhejiangHangxiaoSteelStructureCo,LTD;SteelStructureCompanyofChinaConstructionFirstBureau;ShandongChuchengHighStrengthFastenersCompany;ZhejiangJinggongSteelbuildingCo.,LTD;Hilfi(China)Ltd.ThisCodewasdraftedmainlybytheexpertslistedasbe
21、low:HouZhaoxinHeFentaoYuZhichuoWangWentaoHeQiaoshengHeXianjuanLuKekuanLiuJingfengShijinPaoGuangjianChengGuojingYiMindaMaNaiguangLiHaifengQianWeijunContents1General(1)2TermsandSymbols(2)2.1Terms(2)2.2Symbols(3)3BasicRequirements(4)4AdmittanceofRawMaterialandFinishedProducts(6)4.1Ordinaryrequirements(
22、6)4.2Steelmaterials(6)4.3Weldingmaterials(7)4.4Standardfastenersforconnecting(8)4.5Welding/solderingball(9)4.6Boltball104.7Closingboards,flareheads,sleeves104.8Metalcontourplates114.9Coatingmaterials114.10Others125WeldingWorkofSteelStructures135.1Ordinaryrequirements135.2Weldingworkofsteelstructures
23、135.3Studweldingwork166ConnectingWorkofFasteners186.1Ordinaryrequirements186.2Connectingofordinaryfasteners186.3Connectingofhighstrengthbolts197ProcessingWorkofSteelPartsandSteelComponents217.1Ordinaryrequirements217.2Cutting217.3Rectificationandformation227.4Trimmingofedges247.5Preparationofpipesan
24、dballs257.6Preparationofholes278AssemblyWorkofSteelElements298.1Ordinaryrequirements298.2WeldingofH-shapesteel298.3Assembly298.4Millingofendsandinstallationofweldingbevels308.5Externaldimensionsofsteelelements319TestAssemblingWorkofSteelElements329.1Ordinaryrequirements329.2TestAssembling3210Install
25、ationWorkofSingle-layerSteelStructures3310.1Ordinaryrequirements3310.2Basesandbearingsurfaces3310.3Installationandrectification3511InstallationWorkofMultilayerorHighSteelStructures3311.1Ordinaryrequirements3311.2Basesandbearingsurfaces3311.3Installationandalignment3512InstallationWorkofNet-typeSteel
26、Structures3312.1Ordinaryrequirements3312.2Topplatesofbearingsurfaces,andbearingblock-base3312.3Generalassemblyandinstallation3513PreparationandInstallationWorkofMetalContourPlates5213.1Ordinaryrequirements5213.2Preparationofmetalcontourplates5213.3Installationofmetalcontourplates5414CoatingWorkofSte
27、elStructures5614.1Ordinaryrequirements5614.2Coatingofanticorrosivepaintlayerofsteelstructure5614.3Coatingoffire-retardantcoatinglayerofsteelstructure5815FinalAcceptanceofSubitem-worksofSteelStructure60AppendixAQualityStandardofAppearanceofWeldingSeam,andAllowableVariationsofSizesofWeldingSeam62Appen
28、dixBInspectionItemsofConnectingofFastener64AppendixCAllowableVariationsforAssemblyofSteelStructure71AppendixDAllowableVariationsforTestAssemblingofSteelStructure82AppendixEAllowableVariationsforInstallationofSteelStructure84AppendixFTestMethodforThicknessofFire-retardantCoatingLayerofSteelStructure9
29、0AppendixGTestofSafetyandFunctionalityofSteelStructuresandTestItemsNeedingWitness92AppendixHExaminationItemsofVisualSensationofSteelStructures93AppendixJRecordFormsforBatchQualityAcceptanceofSteelStructures94ExplanatoryNotesforWordingofthisCode107AdditionalNotes:ExplanatoryNotesforClauses1091General
30、1.01 ThisCodewaspreparedforenhancingthecontrolofconstructionquality,unifyingtheacceptanceofconstructionqualityofsteelstructures,andensuringthequalityofsteelstructures.1.02 ThisCodeisapplicablefortheacceptanceoftheconstructionqualityofvarioussteelstructuresincludingsingle-layersteelstructures,multila
31、yersteelstructures,highsteelstructures,net-typesteelstructures,andstructuresmadeofmetalcontourplates.1.03 Therequirementsontheacceptanceofconstructionquality,setforthinthetechnicaldocumentexecutedduringtheconstructionofsteelstructuresandthecontractsforundertakingtheconstruction,shantbelessstrictthan
32、thecorrespondingrequirementsspecifiedinthisCode.1.04 ThisCodeisinadditiontoandshallnotbeprejudicialtotheUniformStandardofAcceptanceofConstructionQualityofSteelStructures(GB50300).Duringtheacceptanceofconstructionqualityofsteelstructures,notonlyrequirementsstatedinthisCodeshallbeimplemented,butalsoth
33、osesetforthinrelatedcurrentstatestandards.2TermsandSymbols2.1Terms2.1.1PartPartmeansthesmallestunitcomposingacomponentorelement,suchasconnectionplate,flangeplateandetc.2.1.2ComponentComponentmeanstheunitcomposedofseveralparts,suchasH-shapeweldablesteel,cantileverbracketandetc.2.1.3ElementElementmean
34、sthesteelstructuresbasicunitcomposedofpartsorpartsandcomponents,suchasbeam,column/pillar,supporterandetc.2.1.4ThesmallestassembledrigidunitThesmallestassembledrigidunitmeansthesmallestinstallationunit,usedduringtheinstallationofsteelstructure,otherthanspareparts;Ordinarily,thesmallestassembledrigidu
35、nitsaredividedtotwotypesincludingplanetrussandcone.2.1.5IntermediateassembledstructureIntermediateassembledstructuremeanstheinstallationunitcomposedofsparepartsandthesmallestassembledrigidunits,whichisusedduringinstallationofsteelstructureanddividedusuallyintotwotypesincludingstrip-shapetypeandblock
36、-shapetype.2.1.6SetofhighstrengthboltSetofhighstrengthboltisthegeneraltermofhighstrengthboltandthenutandgasketmatchingthebolt.2.1.7SlipcoefficientoffayingsurfaceSlipcoefficientoffayingsurfacemeanstheratiobetweentheforeignforcegeneratingslipmovementonfrictionsurfaceofadaptingpieceandthesumofthehighst
37、rengthboltspre-tensileforcingonthefrictionsurfacevertically.2.1.8TestassemblingTestassemblingmeanstheassemblingperformedforverifyingiftheelementscanmeetthequalityrequirementsofinstallation.2.1.9SpacerigidunitSpacerigidunitmeansthebasic,stablespacesystemcomposedofelements.2.1.10StudweldingStudwelding
38、meansaweldingmethoddescribedasbelow:1)makeoneendofstudcontactwiththesurfaceofoneplatepiece(pipepiece);2)makepoweronandstrikearc;3)afterthecontactingsurfacehavemeltedsufficiently,pressthestudappropriatelyandthenendthewelding.2.1.11AmbienttemperatureAmbienttemperaturemeansthetemperatureofthepreparatio
39、norinstallationsite.2.2Symbols2.2.1Actionandactioneffect-Designpre-tensileofhighstrengthbolt;-Lossofpre-tensileofhighstrengthbolt;-Testtorqueofhighstrengthbolt;-Torqueofcompletingscrewofhighstrengthbolt;-Torqueofopeningscrewofhighstrengthbolt.2.2.2Geometricparameter-Spacinginterval;-Widthorfreeoverh
40、angwidthofplate;-Diameter;-Eccentricity;-Flexibility,orheightofarc;-Heightofcolumn/pillar;-Heightofeveryfloorofbuiling;-Heightofsectionalplane;-Calculatedthicknessoflegofafilletweld;-Length,orspan;-Arithmeticmeandeviationofoveralldimensions(i.e.,parameterofsurfaceroughness);-Semidiameter;-Thicknesso
41、fplateorwall;-Increment;2.2.3OthersK-Coefficient;3Basicrequirements3.01Thecontractoroftheconstructionofsteelstructuresshallhavetherelatedqualificationsfortheconstructionofsteelstructures.Fortheonsitecontrolofconstructionquality,relatedtechnicalstandardsofconstructionshallbepreparedandimplemented;the
42、relatedqualityassurancesystemshallbeoperated;andthequalitycontrolandinspectionregulationsshallbeexecuted.Inconstructionsite,therelatedconstructionorganizationplan,constructionschemeandothertechnicaldocumentsshallbeavailable.3.02Themeasuringinstruments/apparatusesusedfortheacceptanceofconstructionqua
43、lityofsteelstructuresshallbethosequalifiedbymetrologicalverificationandcalibration.3.03Theconstructionqualityofsteelstructuresshallbecontrolledinaccordancewiththefollowingrequirements:1. Allrawmaterialsandfinishedproductstobeadoptedforconstructionshallbechecked/testedandacceptedbeforetheyenterconstr
44、uctionsite.Anyrawmaterialandfinishedproductrelatedtothesafetyandfunctionalityofsteelstructureshallberechecked/retestedaccordingtothisCode;moreover,thesamplinganddeliveringofsamplesshallbewitnessedbythesupervisionengineer(i.e.,thetechnicalchiefofclient).2. Thequalityofeveryworkingprocedureshallbecont
45、rolledaccordingtothetechnicalstandardforconstruction;furthermore,everyworkingprocedureshallbecheckedupontheircompletion.3. Fortheinterfacesbetweendifferentspecialkindsofwork,hand-overinspection/testshallbecarriedout;andtheinspection/testresultshallbecheckedandacceptedbythesupervisionengineer(i.e.,thetechnicalchiefofclient).3.0.4Theacceptanceofconstructionqualityofsteelstructuresshallbecarriedoutseparatelyforeveryinspection/testbatch,subitem-work,section(subsection)ofsteelstructure,onthebasisoftheself-