AISC-高强度螺栓规范

June23,2000SupersedestheJune3,1994LRFDSpecificationforStructuralJointsUsingASTMA325orA490BoltsandtheJune3,1994ASDSpecificationforStructuralJointsUsingASTMA325orA490Bolts.PreparedbyRCSCCommittee15—SpecificationsandapprovedbytheResearchCouncilonStructuralConnections.RESEARCHCOUNCILONSTRUCTURALCONNECTIONS©2000byResearchCouncilonStructuralConnectionsAllrightsreserved.Thisbookoranypartthereofmustnotbereproducedinanyformwithoutthewrittenpermissionofthepublisher.Theinformationpresentedinthispublicationhasbeenpreparedinaccordancewithrecognizedengineeringprinciplesandisforgeneralinformationonly.Whileitisbelievedtobeaccurate,thisinformationshouldnotbeusedorrelieduponforanyspecificapplicationwithoutcompetentprofessionalexaminationandverificationofitsaccuracy,suitability,andapplicabilitybyalicensedengineer,architectorotherdesignprofessional.Thepublicationofthematerialcontainedhereinisnotintend-edasarepresentationorwarrantyonthepartoftheResearchCouncilonStructuralConnectionsorofanyotherpersonnamedherein,thatthisinformationissuitableforanygeneralorparticularuseoroffreedomfrominfringementofanypatentorpatents.Anyonemakinguseofthisinformationassumesallliabilityarisingfromsuchuse.Cautionmustbeexercisedwhenrelyinguponotherspecificationsandcodesdevelopedbyotherbodiesandincorporatedbyreferencehereinsincesuchmaterialmaybemodifiedoramendedfromtimetotimesubsequenttotheprintingofthisedition.TheResearchCouncilonStructuralConnectionsbearsnoresponsibilityforsuchmaterialotherthantorefertoitandincorporateitbyreferenceatthetimeoftheinitialpublicationofthisedition.PrintedintheUnitedStatesofAmericaSpecificationforStructuralJointsUsingASTMA325orA490Bolts,June23,2000RESEARCHCOUNCILONSTRUCTURALCONNECTIONSiiiPREFACEThepurposeoftheResearchCouncilonStructuralConnections(RCSC)is:(1)Tostimulateandsupportsuchinvestigationasmaybedeemednecessaryandvaluabletodeterminethesuitability,strengthandbehaviorofvarioustypesofstructuralconnections;(2)Topromotetheknowledgeofeconomicalandefficientpracticesrelatingtosuchstructuralconnections;and,(3)Toprepareandpublishrelatedstandardsandsuchotherdocumentsasnecessarytoachievingitspurpose.TheCouncilmembershipconsistsofqualifiedstructuralengineersfromacademicandresearchinstitutions,practicingdesignengineers,suppliersandmanufacturersoffastenercomponents,fabricators,erectorsandcode-writingauthorities.ThefirstSpecificationapprovedbytheCouncil,calledtheSpecificationforAssemblyofStructuralJointsUsingHighTensileSteelBolts,waspublishedinJanuary1951.SincethattimetheCouncilhaspublishedfourteensuccessiveeditions.EachwasdevelopedthroughthedeliberationsandapprovalofthefullCouncilmembershipandbaseduponpastsuccessfulusage,advancesinthestateofknowledgeandchangesinengineeringdesignpractice.ThiseditionoftheCouncil’sSpecificationforStructuralJointsUsingASTMA325orA490Boltsissignificantlyreorganizedandrevisedfromearliereditions.Themajorchangesare:ThepreviouslyseparateLRFDandASDversionsofthisSpecificationhavebeenunified,withLRFDasthebasisinthemainbodyandASDasanalternativeinAppendixB.ASymbols(nomenclature)sectionhasbeenadded.AGlossarysectionhasbeenadded.AnIndexsectionhasbeenadded.CommentaryinformationhasbeenplacedimmediatelyfollowingitscorrespondingSpecificationprovisiontoprovideconvenientreferencetobackgroundandfurtherexplanation.AsummaryofthedrawinginformationandapprovalsrequiredfromtheEngineerofRecordhasbeenaddedinSection1.4.Explicitcoverageofmaterialandgeometricrequirementsforwasher-typeindicatingdevices,twist-off-typetension-controlboltassembliesandalternativedesignfastenershasbeenaddedinSections2.6,2.7and2.8,respectively.ProvisionsallowingthethermalcuttingofboltholeswiththeapprovaloftheEngineerofRecordhavebeenaddedinSection3.3.RequirementsforthetreatmentofburrshavebeenclarifiedandexpandedinSection3.4.NewinformationhasbeenaddedinSection4toaddresstheapplicabilityandsuitabilityofthevariousjointtypes:snug-tightenedjoints,pretensionedjointsandslip-criticaljoints.TherequirementsinthisSectionalsoservetoidentifytheapplicabledesign,installationandinspectionrequirementsforeachofthejointtypes.SpecificationforStructuralJointsUsingASTMA325orA490Bolts,June23,2000RESEARCHCOUNCILONSTRUCTURALCONNECTIONSInaddition,manyotherchangeshavebeenmadethroughoutthisSpecification.BytheResearchCouncilonStructuralConnections,JamesM.DoyleChairmanAbolhassanAstaneh-AslJosephBahadrianFrederickR.BeckmannDavidW.BogatyCharlesJ.CarterMichaelChuNickE.DealRobertJ.DexterRobertO.DisqueJohnE.DuttonEdwardR.EstesJohnW.FisherKarlH.FrankRodneyD.GibbleMichaelI.GilmorJohnHoffmanMarkV.HollandDonaldL.JohnsonPeterC.BirkemoeViceChairmanPeterF.KasperLawrenceA.KloiberRichardF.KnoblockGeoffreyL.KulakThomasJ.LangillKennethB.LohrRichardW.MarshallWilliamA.Milek,Jr.EugeneR.MitchellHeathE.MitchellWilliamH.MunseThomasM.MurrayRexV.OwenFrederickJ.PalmerFrankA.PetriglianoSureshC.SatsangiGeraldE.SchroederDav