Comparison of Codal Provisions on Pounding between Adjacent Buildings

Abstract

Abstract: Pounding between adjacent structures is commonly observed phenomenon during major earthquakes which may cause both architectural and structural damages. Generally most of the existing buildings in seismically moderate regions are built without codal provisions. In the event of earthquake, pounding may cause considerable damage and leads to collapse of the colliding structures if the separation distance is insufficient. The aim of this paper is to study the impact of first collision according to the codal provisions for five different earthquakes. For this purpose we considered two buildings and the same were idealized as linear single degree of freedom oscillators. Separation distance between buildings is provided accoding to codal provisions of various countries and the buildings are subjected to different ground motions of PGA ranging from 0.22 g to 0.88 g. Later impact force due to collision is calculation and the results were analyzed.