Performance based seismic analysis of RC structural system under earthquake excitation

Abstract

Reinforced concrete (RC) structures are being used extensively worldwide due to their affordability and ability to withstand gravity and lateral loads. The present seismic code assumes that structures to be fixed at the bases. But in reality, the soil medium that supports the structure allows some movement leads to reduction in lateral stiffness of the structure [1]. So, randomness in the soil type should be addressed while assessing the seismic performance of the structure to capture the realistic behaviour of the structure under seismic excitation. Historically, seismic design relied on the traditional force-based approach [2,3]. *Author for correspondence economic losses associated with future seismic events [7,8]. PBSD is a generic design philosophy that aims to meet most performance requirements