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方钢管混凝土框架-冷弯薄壁型钢屈曲约束钢板剪力墙抗侧性能分析 Abstract Thesteel-reinforcedconcreteframewithcold-formedthin-walledsteelbuckling-restrainedsteelplateshearwalls(CFST-CTSBS)isanewlydevelopedlateralload-resistingsystemthatcombinestheadvantagesofsteelandconcrete.Thispaperpresentsatheoreticalanalysisofthelateralload-resistingperformanceoftheCFST-CTSBSsystemusingnumericalsimulations.Thevalidityofthenumericalmodelsisverifiedbycomparingthenumericalresultswiththeexperimentaldata,andtheresultsshowthattheyareingoodagreement.Thenonlinearfiniteelementanalysisiscarriedouttoassessthelateralload-resistingperformanceoftheCFST-CTSBSsystem.TheresultsshowthattheCFST-CTSBSsystemhasexcellentlateralload-resistingperformance,whichconfirmsthefeasibilityofthesystem'sapplicationinhigh-riseandsuper-high-risebuildings. Introduction Steel-reinforcedconcretestructureshavebecomeapopularchoiceforconstructionbecausetheycombinetheadvantagesofbothsteelandconcrete.Concreteisknownforitsexcellentcompressivestrength,whilesteelhashightensilestrengthandiseasytoshapeandfabricate.Therefore,combiningthesetwomaterialscanresultinstructureswithsuperiorstrength,durability,andstability. Oneofthemostcriticalelementsofahigh-riseorsuper-high-risebuildingisitslateralload-resistingsystem.Severallateralload-resistingsystemshavebeendevelopedovertheyears,includingtheshearwallsystem,whichhasproventobeveryeffectiveinresistinglateralloads.Inrecentyears,steel-reinforcedconcreteframeswithcold-formedthin-walledsteelbuckling-restrainedsteelplateshearwalls(CFST-CTSBS)havegainedattentionasapromisingalternativelateralload-resistingsystem. Inthispaper,thelateralload-resistingperformanceoftheCFST-CTSBSsystemisanalyzedusingnumericalsimulations.Thevalidityofthenumericalmodelsisverifiedbycomparingthenumericalresultswithexistingexperimentaldata.Thenonlinearfiniteelementanalysisisthencarriedouttoassessthelateralload-resistingperformanceoftheCFST-CTSBSsystem. Methodology TheoreticalAnalysis TheCFST-CTSBSsystemconsistsofasteel-reinforcedconcreteframeandthin-