SEISMIC BEHAVIOR AND REDUCTION FACTOR OF TALL BUILDINGS WITH TRANSITION STORY

Current research is carried out on a special type of tall Buildings, which is composed of a MomentResisting plus Braced Steel Structure with bolted connections, supported by Moment Resisting RCStructure system. The 3D finite element model of the structure is analyzed according to the new Iranian2800 seismic code, taking into account Sa=0.35g spectral acceleration level and considering soil type 2(loose rock or stiff soil). After scaling the accelerograms recorded on soil type 2, to Sa=0.35g, TimeHistory Analyses are carried out on the assumed 3D model. Finally by performing a Push-overAnalysis , according to FEMA 356 specifications, structural seismic behavior is evaluated.

کلیدواژه ها:

Accelerogram ، Nonlinear Analysis ، Transition Story ، Reduction Factor