Review Paper: Seismic Analysis of Circular Water Tank for Different Seismic Zones

Abstract

The roof, tank wall, water pressure, and foundation slab masses are all analyzed in the seismic analysis of a ground-supported water tank laying on medium soil. The total mass subjected to seismic forces is divided into two parts that is impulsive and convective. Impulsive mass is subjected to impulsive pressure whereas the convective mass is subjected to convective pressure. The impulsive pressures are associated with the inertial forces produced by the accelerations of the walls of the container and are directly proportional to these accelerations. The convective pressures are those produced by the oscillations of the fluid and are therefore the consequences of the impulsive pressures, corresponding to impulsive and convective pressure various design parameters like time period, sloshing height, base shear, base moment and Design horizontal seismic coefficient in both impulsive and convective modes is calculated.