Seismic Performance of Reinforced Concrete Frame Buildings Designed by Iranian Seismic Code

In this paper, the seismic performance of a multi-story reinforced concrete frame building has been studied. A typical reinforced concrete moment-resisting frame building was designed according to the current Iranian seismic code (IS ۲۸۰۰-۱۴). Seven earthquake records were selected and scaled based on IS ۲۸۰۰-۱۴ requirements. In order to assess the seismic vulnerability of the case study structure, nonlinear static (push-over) analysis and nonlinear dynamic time-history analysis have been conducted. The performance has been evaluated based on both the member and global level criteria. Comparison between push-over and nonlinear analyses results shows a relatively good consistency. The numerical results additionally show that the case-study building frames designed by IS ۲۸۰۰-۱۴ satisfy the intended code requirements and meet the inter-story drift and maximum plastic rotation demands suggested byGuide ۳۶۰ (Instruction for Seismic Rehabilitation of Existing Buildings).

Keywords:

Reinforced Concrete Frame , Seismic Performance , Push-over Analysis , Time-History Analysis