Parametric Study of Hydrodynamic Pressure for Ground Rested RC Tank

Abstract

Ground supported tanks are important components of lifeline and industrial facilities as it is used to store
water and other liquids such as petroleum product, liquefied natural gas, chemical fluid and wastage of different forms in
huge capacities. In this paper a parametric study on ground rested circular RC tank is carried out considering different
height to diameter ratio for different capacities. The seismic analysis of tank has been performed considering water mass
in two parts as impulsive mass and convective mass suggested by GSDMA guidelines. The response of tank has been
compared in form of Time period in impulsive and convective mode, Design horizontal seismic coefficient, Base shear,
Base moment and Hydrodynamic pressure due to impulsive and convective mode. From the results, it has been found that
base shear, base moment and hydrodynamic pressure on wall are increases with increasing ratio of maximum depth of
water to the diameter of tank (h/D)