6_李镇宇-欧洲规范介绍43

,EC,|,?,!,&=,?,01,(1)(2)RC(3),(AIK),/1.(1990)2.AIKKSSC(2000)3.LSDASD(2005)4.AISCLSD(),AIK-ASD73,(AIKKSSC),AIK-ASD83,KSSC-ASD03,AIK-LSD97,KSSC-LSD09,AIK-CFSD98,(AISC),AISC-ASD89(9th),AISI-CFSD86,(AIJ),(AIK),/1.(1980)2.AIKKCI(1990)3.USDLSD(2005)4.ACI(),RC,AIK-WSD72,(AIKKCI),KCI-USD99,KCI-USD03,KCI-USD07,KCI-USD12,(AIJ),AIK-USD88,AIK-USD94,(ACI318),ACI318-99,ACI318-02,ACI318-95,ACI318-89,ACI318-83,US,?,02Eurocodes,(1)EC:Eurocodes(2)Eurocode0(EC0)(3)Eurocode8(EC8)(4)Eurocode3(EC3)(5)Eurocode2(EC2),(1)EC:Eurocodes,02Eurocodes,(1)EC:Eurocodes,02Eurocodes,EC-Eurocodes,EuropeancommitteeforstandardizationFounded196128members-includingBSiboundbyCENrulesEurocodesdraftedbysubcommitteesunderCEN/TC250MostprojectteamsincludedUKexpertsEurocodesonlyadoptedafterpositivevotebyCENmembers,Whythechange?,EuropeanCommissionaims:,CommontechnicalstandardsinEuropeanEconomicAreatoeliminatebarrierstotradeImprovethecompetitivenessoftheEuropeanconstructionmarketOpenmarketforconstructionproducts,RelatedtotwomajorEUdirectives:,PublicProcurementDirectiveCommontechnicalspecificationsEurocodesmandatorywhenformulatingpublicprocurementspecificationsConstructionProductsDirectiveComplianceofbuildingandcivilengineeringworkswiththeEssentialRequirementsonmechanicalresistanceandstabilityFrameworkfordrawingupharmonisedtechnicalspecifications,WhataretheEurocodes?,StructuralEurocodes:,10standardsin58partsforthedesignofstructuresinc.buildings,bridges,chimneys,mastsandtowers,etc.,accompaniedby:,NationalAnnexes(nationallydeterminedparameters)Non-ContradictoryComplementaryInformation(e.g.PublishedDocuments)ProductStandards(specificationofconstructionproducts)ExecutionStandards(constructionrequirements,workmanship),ThesearetheEurocodes!,EN1990Eurocode:BasisofstructuraldesignEN1991Eurocode1:ActionsonstructuresEN1992Eurocode2:DesignofconcretestructuresEN1993Eurocode3:DesignofsteelstructuresEN1994Eurocode4:DesignofcompositestructuresEN1995Eurocode5:DesignoftimberstructuresEN1996Eurocode6:DesignofmasonrystructuresEN1997Eurocode7:GeotechnicaldesignEN1998Eurocode8:DesignforearthquakeresistanceEN1999Eurocode9:Designofaluminiumstructures,0:,?,1:,2:,3:,4:,5:,6:/,7:,8:,9:,!,?,?,?,(1)EC:Eurocodes,02Eurocodes,(2)Eurocode0(EC0):BasisofStructuralDesign,02Eurocodes,Designsituations,Persistentdesignsituations:NormalconditionsTransientdesignsituations:TemporaryconditionsAccidentaldesignsituations:ExceptionalconditionsSeismicdesignsituations:Seismicevents,DesignforLimitStates,UltimateLimitsStateServiceabilityLimitState,UltimateLimitState,EQU:LossofstaticequilibriumofthestructureofanypartofitSTR:InternalfailureorexcessivedeformationofthestructureorstructuralmembersGEO:FailureofexcessivedeformationofgroundFAT:Fatiguefailureofthestructureorstructuralmembers,ServiceabilityLimitState,Characteristiccombination:irreversible()Frequentcombination:reversible()Quasi-permanentcombination:reversible(),?,Verificationbythepartialfactormethod,Individualpartialsafetyfactors,Verification:EdRd,Representativevalueofvariableaction,Q,t,Designvalue:Qd=QQk,Characteristicvalue:Qk,Combinationvalue:0Qk,Frequentvalue:1Qk,Quasi-permanentvalue:2Qk,Actions(),Permanentactions(G):,(,),Variableactions(Q):,Accidentalactions(A):,Seismicactions(AEk):,Representativevaluesofvariableactions(),Combinationvalue,0Qkfrequentvalue,1Qkquasi-permanentvalue,2Qk,(ULS)(SLS),ECUltimateLimitState(ULS),Designsituations,Persistent:normalconditionsTransient:temporaryconditionsAccidental:exceptionalconditionsSeismic:seismicevents,G:permanentactionP:pre-stressingactionQ:variableactionA:accidentalactionAE:seismicaction,?,ECServiceabilityLimitState(SLS),G:permanentactionP:pre-stressingactionQ:variableaction,(1)EC:Eurocodes,02Eurocodes,(3)Eurocode8(EC8):Designofstructuresforearthquakeresistance,02Eurocodes,Behaviourfactor(q):Table6.1.(DCL,DCM,DCH).,Behaviourfactor(q):Table6.2.u/1:Pushover.20%.,u/1?,SectionClassification,(1)EC:Eurocodes,02Eurocodes,(4)Eurocode3(EC3):Designofsteelstructures,02Eurocodes,?,:Table5.2(Class12)kBucklingfactor()(Class3),k?,kBucklingfactor=2/11:2:,AISC360,EC3vsAISC360,Sheararea,WebDTR,EC3,6.2.2.4Class3,6.2.2.5(4)Class4(),-EC3vsAISC360,-EC3vsAISC360,Compression,(1)EC:Eurocodes,02Eurocodes,(5)Eurocode2(EC2):Designofconcretestructures,02Eurocodes,Partialfactorsformaterials.ULS:NationalAnnex,Table2.1NSLS:NationalAnnex,1.0,Seismic?,cu13?,(1)fcd,fcd=ccfck/c=(0.81.0)fck/1.5(2)1fck.,:(1)(3)Characteristiccomb.:0.6fck,XD-,XS-,XF-Quasi-permanentcomb.:0.