Effect of revision of seismic codal provisions on the analysis of berthing structures

Berthing structures are used for loading and unloading of cargo, embarking and disembarking of passengers. In India, Indian Standard Code IS 1893 is used to predict the seismic force acting on a structure. The recentfifth revision of this code has divided the country based on the peak ground acceleration. In India, most of the ports are located in the seismic Zones II, III and V. Hence, three different structures in these zones are considered for the present study. These structures are analyzed as per IS 1893-1984 and IS 1893 (Part I) -2002. The effect of revision of the code for the prediction of seismic force and retrofitting of the structure is studied in this paper with three-dimensional soil structure interaction.