Seismic performance evaluation of staggered wall structures using fema p695 procedure

In this study the seismic performance of six and 12-storey staggered wall structures with a middle corridor is evaluated based on the Fema P695 procedure. The validity of the seismic response factors used for seismic design of the model structures is also evaluated following the procedure. The analysis results of the prototype structures are compared with those of structures with increased coupling beam depth or increased rebar ratio of coupling beams. The adjusted collapse margin ratios of the model structures obtained from incremental dynamic analyses turn out to be larger than the limit states specified in the Fema P695, which implies that the analysis model structures have enough safety margin for collapse against design level earthquakes. It is also concluded that the response modification factor used in the design of the model structures is valid.