Impact of structural pounding on structural behaviour of adjacent buildings considering dynamic soil-structure interaction

Abstract

The structural behaviour of adjacent buildings during a structural pounding and the impact of which has been a subject of discussion for many years and soil-structure interaction (SSI) has been ignored in the design due to its complexity. However, recent research showed that SSI effects can increase the lateral deflections in structures founded on soft deposits. SSI can also affect the inter-storey drifts on a similar founding soil, causing inelastic behaviour and subsequently severe damages. This study attempts to conduct a comprehensive review and comparison of the past and present studies with and without soil-structure interaction effect to show the significance of SSI on structural pounding and hence the need for a new seismic design approach by considering the detrimental influences of SSI on structures, in particular on adjacent buildings at proximity of each other. The displacement and inter-storey drifts are compared with future predictions to better understanding of pounding effect on these building and subsequently improve the design to mitigate the impact.