简介:Theeffectsofhighermodesandtorsionhaveasignificantimpactontheseismicresponsesofasymmetric-plantallbuildings.Aconsecutivemodalpushover(CMP)procedureisoneofthepushovermethodsthathavebeendevelopedtoconsidertheseeffects.Theaimofthispaperistomodifythe(CMP)analysisproceduretoestimatetheseismicdemandsofone-wayasymmetric-plantallbuildingswithdualsystems.Ananalysisof10-,15-and20-storyasymmetric-planbuildingsiscarriedout,andtheresultsfromthemodifiedconsecutivemodalpushover(MCMP)procedurearecomparedwiththoseobtainedfromthemodalpushoveranalysis(MPA)procedureandthenonlineartimehistoryanalysis(NLTHA).TheMCMPestimatesoftheseismicdemandsofone-wayasymmetric-planbuildingsdemonstrateareasonableaccuracy,comparedtotheresultsobtainedfromtheNLTHA.Furthermore,theaccuracyoftheMCMPprocedureinthepredictionofplastichingerotationsisbetterthantheMPAprocedure.ThenewpushoverprocedureisalsomoreaccuratethantheFEMAloaddistributionandtheMPAprocedure.