Seismic Response and Optimization of Multi Decked Water Tanks with Variations in Height / Diameter Ratio

The main objective of this study is to evaluate the seismic response and optimization of multi decked water tanks with variations in height of staging and diameter of tank under different loading conditions and strengthening the conventional type of staging. Normal type of bracing system applied to the staging of elevated circular water tank for earthquake zone IV of India. Analysis is carried out using SAP2000 v15. Twenty models are used for calculating base shear, axial forces and moments of the structure along different direction by using response spectrum method for H/D ratios 0.3, 0.4, 0.5, 0.6. Variation in staging height is 12m, 16m, 24m and 28 m at 4m each. Sloshing forces and base shear was calculated from IITK guideline. Hydrodynamic pressure for impulsive and convective mode was calculated.