摘要关键词:桥梁,抗震设计,基于位移,基于强度,位移估计,等位移准则,弹性分析,推倒分析AbstractABSTRACTDisplacement—basedseismicdesign(DBSD)isaneffectivewaytorealizethephilosophyofperformance-basedseismicdesign(PBSD),,:·SuchaspectsofresearcharereviewedasPBSDphilosophy,DBSDprocedures,displacementestimationmethodsandtargetdisplacementselection,prehensivereadingandunderstandingofrelatedliteraturehomeandabroad.·,errorsduetogrosssectionstiffnessadoptedinforce-basedseismicdesign(FBSD).·,theapplicabilityrangeforequal-displacementruleisdiscussed,andasimplifieddiscriminantissuggested;second,thedeterminationoftargetdisplacementisstudiedintheperspectiveofdamagecontrolthroughmaterialstrain;andfinallyasimplifiedDBSDprocedurebasedonequal—displacementruleisproposed.·paredwiththeFBSDprocedureforSDOFsystemindesignconcept,designresultsanddesignstrategies,andthesignificantdifferencesalesummarized.●TheDBSDprocedureisstudiedfortransverseresponseofcontinuousgirderbriages,Fivebriagemodelsareanalyzedusingelasticanalysis(EA)andmodalpushoveranalysis(MPA),,aDBSDprocedureisputforwardforthetransverseresponseofcontinuousgirderbridges,,,aDBSDprocedureisproposedforthelongitudinalresponseofcontinuousgirder
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