Cyclic response of masonry infilled RC frames: Experimental resultsand simplified modeling

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115 Citazioni (Scopus)

Abstract

The recentlargeinterestinnonlinearseismicanalysismethods,staticanddynamic,hasrequiredproperstrategiesofmodelingbasedonreliable,andatthesametimeeasytouse,constitutivelawsforthestructural elements.Regardingthebehaviorofframedstructures,specialattentionhastobedevotedtoinfills becauseofthekeyroletheyplayinmodifyingoverallstiffness,strengthandductilityunderseismic excitation.Pointingouttheattentiononthistopicthepaperdiscussesacriteriaformodelingthestructural behaviorofinfills basedonamacromodelingapproach,thatistosayonthesubstitutionofinfills withdiagonalpinjointedstruts.Ishereshownhowmultilinearplasticlinkelementsgovernedby ahystereticPivotmodel,availableindifferentFEMcodes,canbeappropriatelyusedtomodeltheequivalentstrutstoperformlinearornonlinearanalyses.Inordertoenlargeexperimentalknowledgeoncyclicbehaviorofinfilled framesstructuresandasreferencefordevelopingtheabovementionedmodelingstrategy,anexperimentalcampaignonsingle-storey,single-bay,fullyinfilledframeswithdifferentkindsofmasonryandsubjectedtolateralcyclicalloads,wascarriedout,andsomeothersavailableintheliteraturearereferredto.ValidationofPivotmodeling approachwascarriedoutcomparingexperimentalresultsandcomputersimulationsoftheexperimentaltests.InthepaperhysteresisparametersvaluescalibratingPivotlawarealsogivenforinvolvedmasonryinfills typologiesandsomeproposalsforcorrelationbetweenstrengthandstiffnessofinfilledframesandofmasonryinfillsareprovidedasatoolforthequickcalibrationofthePivotmodelinpracticalapplications.
Lingua originaleEnglish
pagine (da-a)224-242
Numero di pagine19
RivistaSoil Dynamics and Earthquake Engineering
Volume65
Stato di pubblicazionePublished - 2014

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Soil Science

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