摘要
Non-linearfiniteelementmodelsaccountingforlargedisplacementshavebeenusedtoinvestigatethebehaviorofsteelbuilt-upshearlinksthathadpreviouslybeentestedusinglarge-scaleexperiments.Thelinksweredesignedusingstcclgradeswithyieldpointsrangingfromhightolowstrengths.Theobjectivesofthcnumericalanalysesweretofurtherinvestigatethenon-linearbehaviorandtocorrelatethenumericalresultswithexperimentalobservations.Elasto-plasticaswellascyclicstress-strainmaterialpropertieswereincorporatedtostudytheinfluenceofmaterialbehaviorontheoverallshearlinkresponse.Non-linearmonotonicanalysesoftheshearlinksincorporatingthecyclicstress-strainsteelpropertiesresultedinsimilartrendsintheresponseasthebackbonecurvesrecordedfromthephysicalexperiments.Thenumericalmodelsofbuilt-upshearlinksutilizingstructuralgradesteelscloselycorrelatedtotheexperimentallyrecordedshearstrength.Modelsutilizinglowyieldpointsteelsoverestimatedtheshearstrength,whichwascausedbythecharacteristicsofcyclicbehaviorofthosesteels.Thedetailednumericalmodelsalsoallowedforinvestigationoftheplasticstraindemandsonthedifferentcomponentsofthelink.Itwasshownthatfiniteelementmodelscombinedwithappropriatestress-strainrelationshipmaybeusedwithconfidencetocheckthedesignofshearlinksofdifferentsteelgradesandsectionalgeometries.
出版日期
2004年02月12日（中国期刊网平台首次上网日期，不代表论文的发表时间）
