Seismic design and constructability of RCS special moment frames

This paper presents an evaluation in terms of constructability, cost, and s eismic performance of an alternative structural system for high seismic ris k zones made of composite reinforced concrete-steel (RCS) special moment-re sisting frames. Interior beam-column joints and the effects of a reinforced concrete slab on composite metal decking are investigated. The major issue s discussed are related to seismic design philosophy and constructability o f a three-dimensional RCS special moment frame system for low-rise and mid- rise construction. The key conclusion from this work is that the proposed R CS frame system has advantages over steel frame systems in high seismic ris k zones in terms of having a cost-effective construction process and posses sing certain stable hysteretic performance during inelastic excursions.