Seismic Performance of a New Capacity Design Scheme for RC Framed Building

Limiting values of column-to-beam moment capacity ratio (MCR) that ensure a desirable collapse mechanism has been presented by many international standards as well as published literature. However, compliance of such requirements is reported to be computationally involved, which makes it unattractive to the design office. Also, the studies on the effectiveness of this requirement in terms of seismic performance of the building and associated cost-benefit are limited. The present study proposes an alternate scheme of MCR for the capacity design of RC framed building, which is easy to comply with and leads to an economical design without affecting its seismic safety.