Because of higher—order vibration modes, there are a lot of problems with in high.rise steel structuraI pushover analysis.Pushover analysis method is adopted with the aid of the SAP2000 software to analvze the multilayer and high—rise steel structures in small earthquakes and rare earthquakes. In the analysis various lateral loadin patterns are considered,and the corresponding results,including the nonlinear top.story displacement, story displacement and the distribution of story drifts, are obtained.In order to find a more reas0nable loading partem of high-rise steel structural performance,the seismic performance of structures is assessed.
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Krawinkle H,Seneviratna GDPK.Pros and cons of a pushover analysis of seismic performance evaluation[J].Engineefing Structures,1998,20(4-6):452464.
Onoufriou T,Forbes V J.Developments in structural system reliability assessments of fixed steel offshore platforms[J].Reliability Engineering and System Safety,2001,71:189-199.
Onoufriou T.Overview of advanced structural and reliability techniques for optimum design of fixed offshore platforms[J].Journal of Construction Steel Research,1998,44(3):181-201.
Mehdi Poursha.A Consecutive modal pushover procedure for estimating the seismic demands of tall buildings[J].Engineering Structures,2009,31:591-599.
Stewart G,Van de Graaf JW.A methodology for platform collapse analysis[C]∥Proceedings of the Ofshore Technology Conference.Paper OTC 63 1 1,Houston,1 990.
Federal Emerfency Management Agency(FEMA).NEHRP Guidelines for the Seismic Rehabilitation of Building Seismic Safety Council[R].FEMA Report 273,1997.
Eberhard M O,Sozen M.Behavior.based method to determine design shear in earthquake-resistant walls[J].Journal of StmcturaJ Division,ASCE,1993,119(2):619-640.