Seismic behaviour of elevated liquid storage tanks by considering the different soil types using MATLAB software

Abstract

For a structure the soil structure interaction (SSI) is the connection between the super structure and the foundation. In this paper, the seismic responses of liquid storage elevated tank with SSI and without SSI effects are considered and effects were analysed. The consequences of SSI on peak seismic responses of tank like displacement, overturning moments are discussed. Furthermore, the impacts of different factors such as slenderness ratio and time period of liquid tank staging on the seismic performance of the raised tank are investigated. From the study it is observed that the soft soil is prone to overturning moment of water storage tank and also found that as the slenderness increases, the overturning moment decreases gradually irrespective of soil type and time period of the staging.