BS595012000建筑中使用的钢制结构设计的实施规范轧制和焊接型材

LicensedCopy:SheffieldUniversity,UniversityofSheffield,10October2002,UncontrolledCopy,(c)BSIBRITISHSTANDARDBS5950-1:2000IncorporatingCorrigendumNo.1Structuraluseofsteelworkinbuilding—Part1:Codeofpracticefordesign—RolledandweldedsectionsICS:91.080.10NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWLicensedCopy:SheffieldUniversity,UniversityofSheffield,10October2002,UncontrolledCopy,(c)BSIBS5950-1:2000ThisBritishStandard,havingbeenpreparedunderthedirectionoftheCivilEngineeringandBuildingStructuresStandardsPolicyCommittee,waspublishedundertheauthorityoftheStandardsCommitteeon15May2001.Itcomesintoeffecton15August2001(seeforeword).©BSI05-2001ThefollowingBSIreferencesrelatetotheworkonthisstandard:CommitteereferenceB/525/31Draftforcomment98/102164DCISBN058033239XCommitteesresponsibleforthisBritishStandardThepreparationofthisBritishStandardwasentrustedbyTechnicalCommitteeB/525,Buildingandcivilengineeringstructures,toSubcommitteeB/525/31,Structuraluseofsteel,uponwhichthefollowingbodieswererepresented:BritishConstructionalSteelworkAssociationBuildingResearchEstablishmentLtdColdRolledSectionsAssociationConfederationofBritishMetalformingDETR(ConstructionDirectorate)DETR(HighwaysAgency)HealthandSafetyExecutiveInstitutionofCivilEngineersInstitutionofStructuralEngineersSteelConstructionInstituteUKSteelAssociationWeldingInstituteAmendmentsissuedsincepublicationAmd.No.DateComments13199CorrigendumNo.1May2001CorrectedandreprintedLicensedCopy:SheffieldUniversity,UniversityofSheffield,10October2002,UncontrolledCopy,(c)BSIBS5950-1:2000©BSI05-2001iContentsPageCommitteesresponsibleInsidefrontcoverForewordvSection1.General11.1Scope11.2Normativereferences11.3Termsanddefinitions21.4Majorsymbols61.5Othermaterials81.6Designdocuments81.7ReferencetoBS5400-38Section2.Limitstatesdesign92.1Generalprinciplesanddesignmethods92.2Loading112.3Temperaturechange112.4Ultimatelimitstates112.5Serviceabilitylimitstates23Section3.Propertiesofmaterialsandsectionproperties253.1Structuralsteel253.2Boltsandwelds263.3Steelcastingsandforgings263.4Sectionproperties273.5Classificationofcross-sections293.6Slendercross-sections36Section4.Designofstructuralmembers414.1General414.2Memberssubjecttobending414.3Lateral-torsionalbuckling444.4Plategirders634.5Webbearingcapacity,bucklingresistanceandstiffenerdesign724.6Tensionmembers774.7Compressionmembers784.8Memberswithcombinedmomentandaxialforce984.9Memberswithbiaxialmoments1034.10Membersinlatticeframesandtrusses1054.11Gantrygirders1054.12Purlinsandsiderails1064.13Columnbases1084.14Casedsections1104.15Webopenings1124.16Separatorsanddiaphragms1144.17Eccentricloadsonbeams114Section5.Continuousstructures1155.1General1155.2Globalanalysis1165.3Stabilityout-of-planeforplasticanalysis1185.4Continuousbeams1205.5Portalframes1215.6Elasticdesignofmulti-storeyrigidframes1255.7Plasticdesignofmulti-storeyrigidframes126LicensedCopy:SheffieldUniversity,UniversityofSheffield,10October2002,UncontrolledCopy,(c)BSIBS5950-1:2000ii©BSI05-2001PageSection6.Connections1296.1Generalrecommendations1296.2Connectionsusingbolts1316.3Non-preloadedbolts1346.4Preloadedbolts1396.5Pinconnections1426.6Holding-downbolts1436.7Weldedconnections1446.8Designoffilletwelds1476.9Designofbuttwelds150Section7.Loadingtests1537.1General1537.2Testconditions1537.3Testprocedures1547.4Relativestrengthcoefficient1557.5Prooftest1567.6Strengthtest1577.7Failuretest158AnnexA(informative)SafetyformatinBS5950-1andreferencestoBS5400-3161AnnexB(normative)Lateral-torsionalbucklingofmemberssubjecttobending163AnnexC(normative)Compressivestrength171AnnexD(normative)Effectivelengthsofcolumnsinsimplestructures172AnnexE(normative)Effectivelengthsofcompressionmembersincontinuousstructures178AnnexF(normative)Framestability187AnnexG(normative)Memberswithoneflangelaterallyrestrained188AnnexH(normative)Webbucklingresistance199AnnexI(normative)Combinedaxialcompressionandbending207Bibliography213Figure1—Exampleoftyingthecolumnsofabuilding21Figure2—Exampleofgeneraltyingofabuilding23Figure3—Staggeredholes28Figure4—Anglewithholesinbothlegs28Figure5—Dimensionsofcompressionelements29Figure6—Dimensionsofcompoundflanges31Figure7—Stressratioforasemi-compactweb35Figure8—Doublysymmetricslendercross-sections37Figure9—Effectivewidthforclass4slenderwebunderpurebending39Figure10—ExamplesoflippedI-sectionswithcompressionflangelips57Figure11—Cross-sectionscomprisingelementswithdifferingdesignstrengths63Figure12—Interactionbetweenshearandmoment65Figure13—Stiffbearinglength73Figure14—RolledI-orH-sectionwithweldedflangeplates80Figure15—Effectiveareaofabaseplate108Figure16—Proportionsofstandardcastellatedmembers114Figure17—Dimensionsofahaunch120LicensedCopy:SheffieldUniversity,UniversityofSheffield,10October2002,UncontrolledCopy,(c)BSIBS5950-1:2000©BSI05-2001iiiPageFigure18—Portalframedefinitions122Figure19—Haunchrestraints125Figure20—Columnwebpanelzone131Figure21—Minimumedgeandenddistances132Figure22—Blockshear—Effectivesheararea134Figure23—Laplengthofasplice135Figure24—Maximumcross-centresofboltli