Evaluation of the fishbone model in simulating the seismic response of multistory reinforced concrete moment-resisting frames

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摘要 Thefishbonemodelisasimplifiednumericalmodelformoment-resistingframesthatiscapableofmodellingtheeffectsofcolumn-beamstrengthandstiffnessratios.Theapplicabilityofthefishbonemodelinsimulatingtheseismicresponsesofreinforcedconcretemoment-resistingframesofdifferentsetsofcolumn-beamstrengthandstiffnessratiosareevaluatedthroughnonlinearstatic,dynamicandincrementaldynamicanalysisonsixprototypebuildingsof4-,8-and12-stories.Theresultsshowthatthefishbonemodelispracticallyaccurateenoughforreinforcedconcreteframes,althoughtheassumptionofequaljointrotationdoesnotholdinallcases.Inadditiontothegroundmotioncharacteristicsandthenumberofstoriesinthestructures,theaccuracyofthemodelalsovarieswiththecolumn-beamstiffnessandstrengthratios.Themodelperformsbetterforstrongcolumn-weakbeamframes,inwhichthelateraldriftpatternsarebettercontrolledbythecontinuousstiffnessprovidedbythestrongcolumns.Whentheinelasticdeformationislarge,theaccuracyofthemodelmaybesubjectedtolargerecord-to-recordvariability.Thisisespeciallythecaseforframesofweakcolumns.
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出版日期 2019年02月12日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)
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