1、A Referencenumbe r ISO107212:1999 (E) INTERNATIONAL STANDARD ISO 107212 Firstedition 19990501 Correctedandreprinted 20000915 Steelstructures Part2: Fabricationanderection Structuresenacier Part2:FabricationetmontageISO107212:1999(E) ISO1999 Allrightsreserved.Unlessotherwisespecified,nopartofthispubl
2、icationmaybereproducedorutilizedinanyformorbyan ymeans,electronic ormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromthepublisher. InternationalOrganizationforStandardization Casepostale56 CH1211Genve20 Switzerland Internet isoiso.ch PrintedinSwitzerland ii Contents 1Scope
3、1 2Normativereferences . .1 3Materials .2 4Fabricationworkmanship .3 4.1Materialidentification .3 4.2Bendingandpressing . .3 4.3Straighteningandflattening. .3 4.4Forging .3 4.5Preparationofedges,endsandsurfaces 3 4.6Holesforboltsandpins. 4 4.7Bolts,nutsandwashers 5 4.8Welding 8 5Fabricationtolerance
4、s. 13 5.1General .13 5.2Crosssectionofrolledsections . 14 5.3Crosssectionofmembersfabricatedfromplates(orbuiltupfromsections)14 5.4Length. .17 5.5Straightnessinbothaxes 17 5.6Camber. 17 6Erection. 18 6.1Accuracyofconstruction . .18 6.2Markingforerection . 18 6.3Delivery,storageandhandling . 18ISO IS
5、O107212:1999(E) iii 6.4Erectionofstructuralsteelwork. . 18 6.5Alignment 18 6.6ProtectivetreatmentSiteapplication . 18 7Supportsandfoundations. . 18 7.1Foundationanchorbolts . 18 7.2Shims . 19 7.3Beddingandgrouting . . 19 8Erectiontolerances . 19 8.1General 19 8.2Connectiontoconcretefoundations. . 20
6、 8.3Columnbases . 20 8.4Plumbingandalignmentofcolumns 20 8.5Alignmentofbeams . 22 8.6Fitofcompressionjoints . 22 9Corrosionprotectionofsteelwork . 22 9.1General 22 9.2Surfacepreparation 22 9.3Protectivetreatment. 26 10Controlinfabrication 26 10.1Certification. 26 10.2Controlofworks . 27 11Controland
7、inspectionduringerection 28 11.1General . . 28 11.2Inspection 28 11.3Temporaryworksandsupports 28 AnnexA (informative) Guidanceforcontrolofdistortionandshrinkage . 29 AnnexB (informative) Guidanceforrepairofwelds . 30 AnnexC (informative) Guidanceforthequalificationofpersonnel 31 AnnexD (informative
8、) Testingandinspectionofwelds . 32 Bibliography 44ISO107212:1999(E) ISO iv Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachmemb
9、erbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas therighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnongovernmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmattersof
10、electrotechnicalstandardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbo
11、diescastingavote. InternationalStandardISO107212waspreparedbyTechnicalCommitteeISO/TC167, Steelandaluminium structures,SubcommitteeSC2, Steel:Fabricationanderection . ISO10721consistsofthefollowingparts,underthegeneraltitle Steelstructures: Part1:Materialsanddesign Part2:Fabricationanderection Annex
12、esAtoDareforinformationonly.ISO ISO107212:1999(E) v Introduction ThispartofISO10721establishesacommonbasisfordraftingnationalstandardsforthefabricationanderectionof steelstructures,inordertoensureanadequateandconsistenttreatmentofsafetyandserviceabilitycompatible withISO107211.Thespecificandnumerate
13、requirementsfortheachievementofstructureswhichareoptimalwith respecttothestateoftheeconomy,developmentandgeneralvaluesofanationaregivenintheappropriate nationalstandard. NOTEThoseconcernedwithaconstructionprojectmayneedtotakeintoaccountthesafetyandhealthoftheconstruction workersinaccordancewithnatio
14、nallaws,regulationsandpractice.Thus,fabricators,clients,designers,constructors, employers,selfemployedpersonsandemployeesmaybeconcernedwiththismatter.INTERNATIONALSTANDARD ISO ISO107212:1999(E) 1 Steelstructures Part2: Fabricationanderection 1Scope ThispartofISO10721specifiestherequirementsforthefab
15、rication,erectionandinspectionofstructuralsteelwork inbuildingsdesignedinaccordancewithISO107211,includingsteelworkincompositesteelandconcrete structures. ThispartofISO10721isalsoapplicabletobridges,offshoreandothercivilengineeringandrelatedstructures,but forsuchstructuresitmaybenecessarytoconsidero
16、therrequirements. NOTEForweldedconnectionsandforstructuressubjecttofatigue,specialconsiderationsregardingscopeandfieldof applicationarepresentedin8.9and10.1respectivelyofISO107211. 2Normative references Thefollowingnormativedocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisi
17、onsof thispartofISO10721.Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthesepublications donotapply.However,partiestoagreementsbasedonthispartofISO10721areencouragedtoinvestigatethe possibilityofapplyingthemostrecenteditionsofthenormativedocumentsindicatedbelow.Forundated references,t
18、helatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIECmaintain registersofcurrentlyvalidInternationalStandards. ISOR615, Methodsfordeterminingthemechanicalpropertiesoftheweldmetaldepositedbyelectrodes3,15mm ormoreindiameter. ISO630, StructuralsteelPlates,wideflats,bars,sectionsand
19、profiles. ISO657(allparts), Dimensionsofhotrolledsteelsections. ISO700, PowersourcesformanualmetalarcweldingwithcoveredelectrodesandfortheTIGprocess. ISO1461, MetalliccoatingsHotdipgalvanizedcoatingsonfabricatedferrousproductsRequirements. ISO2063, MetalliccoatingsProtectionofironandsteelstructuresa
20、gainstcorrosionMetalsprayingofzinc andaluminium. ISO2081, MetalliccoatingsElectroplatedcoatingsofzinconironorsteel. ISO2082, MetalliccoatingsElectroplatedcoatingsofcadmiumonironorsteel. ISO2400, WeldsinsteelReferenceblockforthecalibrationofequipmentforultrasonicexamination. ISO2553, Welded,brazedand
21、solderedjointsSymbolicrepresentationondrawings. ISO3690,WeldingDeterminationofhydrogenindepositedweldmetalarisingfromtheuseofcovered electrodesforweldingmildandlowalloysteels. ISO4063, WeldingandalliedprocessesNomenclatureofprocessesandreferencenumbers.ISO107212:1999(E) ISO 2 ISO7415, Plainwashersfo
22、rhighstrengthandstructuralbolting,hardenedandtempered. ISO7963, WeldsinsteelCalibrationblockNo.2forultrasonicexaminationofwelds. ISO85011, PreparationofsteelsubstratesbeforeapplicationofpaintsandrelatedproductsVisualassessment ofsurfacecleanlinessPart1:Rustgradesandpreparationgradesofuncoatedsteelsu
23、bstratesandofsteel substratesafteroverallremovalofpreviouscoatings. ISO85012,PreparationofsteelsubstratesbeforetheapplicationofpaintsandrelatedproductsVisual assessmentofsurfacecleanlinessPart2:Preparationgradesofpreviouslycoatedsteelsubstratesafter localizedremovalofpreviouscoatings. ISO85031, Prep
24、arationofsteelsubstratesbeforeapplicationofpaintsandrelatedproductsSurfaceroughness characteristicsofblastcleanedsteelsubstratesPart1:SpecificationsanddefinitionsforISOsurfaceprofile comparatorsfortheassessmentofabrasiveblastcleanedsurfaces. ISO85032, Preparationofsteelsubstratesbeforeapplicationofp
25、aintsandrelatedproductsSurfaceroughness characteristicsofblastcleanedsteelsubstratesPart2:Methodforthegradingofsurfaceprofileofabrasive blastcleanedsteelComparatorprocedure. ISO9000(allparts), Qualitymanagementandqualityassurancestandards. ISO9002, QualitysystemsModelforqualityassuranceinproductiona
26、ndinstallation. ISO96061, ApprovaltestingofweldersFusionweldingPart1:Steels. ISO9692,Metalarcweldingwithcoveredelectrode,gasshieldedmetalarcweldingandgasweldingJoint preparationsforsteel. ISO99561, SpecificationandapprovalofweldingproceduresformetallicmaterialsPart1:Generalrulesfor fusionwelding. IS
27、O99562, SpecificationandapprovalofweldingproceduresformetallicmaterialsPart2:Weldingprocedure specificationforarcwelding. ISO99563, SpecificationandapprovalofweldingproceduresformetallicmaterialsPart3:Weldingprocedure testsforthearcweldingofsteels. ISO107211:1997, SteelstructuresPart1:Materialsandde
28、sign . ISO129444, PaintsandvarnishesCorrosionprotectionofsteelstructuresbyprotectivepaintsystemsPart4: Typesofsurfaceandsurfacepreparation. ISO14713, ProtectionagainstcorrosionofironandsteelinstructuresZincandaluminiumcoatingsguidelines. 3Materials Allmaterialsshouldcomplywiththerequirementsof6.3ofI
29、SO107211:1997. Forsteelsnotcomplyingwith6.3ofISO107211:1997,otherrequirementsmaybenecessary. WherenosuitableInternationalStandardexists,referenceshallbemadetoappropriatenationalstandards, certificationschemesandagreements. Unlessstatedotherwise,thenationalstandardstobeadoptedarethoseofthecountryinwh
30、ichthestructureisto bebuilt. Wherenostandardsexist,theproprietarymanufacturersrecommendationsshallbeadopted.ISO ISO107212:1999(E) 3 4Fabrication workmanship 4.1Material identification Thefabricatorshalldemonstratethemeansusedtoeffectivelyidentifysteelmaterialspriortofabricationand assemblyofmembers.
31、Hardstampingmaybeusedexceptwhereotherwisespecifiedbythedesigner,suchasfor elementssubjecttosuddenimpactorfatiguecriteriaorinregionswhereplastichingesmayoccur. 4.2 Bendingandpressing Steelmaybebentorpressedtotherequiredshapebyeitherthehotorthecoldprocess,providedthepropertiesof thematerialarenotaffec
32、tedbeyondthelimitsspecifiedintherelevantsteelstandard. Forcoldbendingofplatesandflats,theinternalradiusofbendsshallbewithintolerancesgiveninthedesign documentsandshallnotbelessthanthebendtestingradiusspecifiedforthematerialthicknessintherelevant steelstandard. Forhotbending,thetemperature,timingandc
33、oolingrateshallbeappropriatetotheparticulartypeofsteel.Bending intheblueheatrange(290 Cto380 C)shallbeavoided. 4.3 Straighteningandflattening Straighteningandflatteningshallbecarriedoutbytheapplicationofheatorbytheslowapplicationofmechanical pressure;hammeringisnotpermitted. Whenstraighteningandflat
34、teningbytheapplicationoflocalizedheat,therecommendationsofclauseB.4in annexBshouldbefollowed. 4.4Forging Forgingshallbecarriedoutinsuchamannerthatitwillnotimpairthepropertiesofthematerial. 4.5 Preparationofedges,endsandsurfaces 4.5.1General Cuttingshallbebysawing,shearingandmachinethermalorlasercutt
35、ing.Unguidedflamecuttingshallonlybe usedfornotchingorthecompletionoftheformationofslottedholes.Reentrantcornersshallberoundedby grindingandbefreeofovercutting. 4.5.2 Preparationofmaterial Thepreparationofthematerialshallbeinaccordancewiththefollowingrequirements: a) parentmetalsurfaceswithin25mmofth
36、eweldshallbesmooth,uniformandfreefromcracks,looseorthick scaleandothercontaminantswhichwouldadverselyaffectthestrengthorqualityoftheweld; b) wheresmallnotchesorirregularitiesingascutedgesoccuronotherwisesatisfactorysurfaces,theyshallbe removedbygrindingormachiningtoasmoothprofile. Notchesinexcessof5
37、mmindepthorotherdiscontinuitiesconsideredunacceptableshallberepairedby weldingtoanapprovedweldingprocedure.Subsequently,theyshallbegroundsmoothandflushwiththe adjacentsurfacetoproduceanacceptablefinish; c) reentrantcornersshallbefilletedtoaradiusofnotlessthan10mm; NOTE Areentrantcornerisacornerinwhi
38、chtheopenanglebetweenthecutfacesislessthan180 . d) methodsotherthanthosegivenin4.5maybeusedforjointpreparation,backgougingorfortheremovalof unacceptablematerialexceptthatthermalgougingshallnotbeusedonquenchedandtemperedsteels;ISO107212:1999(E) ISO 4 e) edgesofbuiltupbeamandgirderwebsshallbecuttothep
39、rescribedcamberwithsuitableallowancefor shrinkageduetocuttingandwelding.Deviationsfromthespecifiedcambertolerancemaybecorrectedbythe useofanappropriateheatingprocedure; f) steelsurfacesshall: 1) onrolledsurfaces ,benoworsethanGradeCinaccordancewithISO85011andbefreefromsurface defectsinaccordancewith
40、ISO630, 2) oncutsurfaces ,haveasuitablesurfaceroughnessandbefreefromsharparriseswhichpreventthe attainmentofthesurfaceconditionsrequiredforthepaintingsystemspecified. 4.5.3 Flamecuttingandshearing Flamecuttingandshearingshallbepermittedforelementssubjecttoconsiderationofthefollowing: a) whereafatigu
41、equalityisspecified(seeD.5.2inannexD); b) thecutedgeiscompletelyincorporatedintheweld; c) whenspecified,themaximumhardnessofthecutedgedoesnotexceedthelevelsgivenintheappropriate nationalstandard; d) theroughnessofthecutedgedoesnotexceedthevaluespecifiedintheappropriatenationalstandard. 4.5.4 Machini
42、ngbuttedjoints Jointsurfacesdependentoncontactforthetransmissionofloadshallbewithinthetolerancesspecified(see8.6). Nomachiningneedbecarriedoutonabearingfacewhichistobegrouteddirectlytoafoundation. Compressionjointswhichdependoncontactbearingshallhavethebearingsurfacesofindividualfabricatedpieces preparedtoacommonplanebysawingormachining. 4.5.5 Contactsurfacesforslipresistantconnections Allcontactsurfacesshall,atthetimeofassembly,beasspecifiedandfreeofanycontaminant. Whenthejointisassembled,thecontactsurfacesshallbefreefromdust,oil,paintorotherdeleteriousmaterials, exceptforaplannedslip
