Study and Analysis of Circular and Rectangular Water Tank in all Seismic Zones

Abstract: In the present work a comparative analysis for finding the optimized shape of water tank was performed. All models were then analyzed with action of loads and loading combinations prescribed by IS 1893 using STAAD PRO V8i SS5 series software for getting the most efficient and precise results. Total 08 models will be analyzed as per IS 1893 (part2), which are divided as 04 models of circular shape tank in all 04 seismic zones with tank empty condition and 04 models of rectangular shape tank in all 04 seismic zones with tank empty condition after detailed analysis it was found that rectangular thank shows lowest values of reactions for same gravity and seismic loading in low seismic zone circular tank shows 6.62% higher values than rectangular tank. While in Severe seismic zone circular tank shows 15 % increase in its values. As like of structural stability economy is also a perspective for major high-cost work. Above graph of reinforcement requirement shows that in zone-2, zone-3, zone-4 circular tank requires be comparatively lower values of staging reinforcement. But in severe zone this scenario goes inverse showing higher values for circular shape tank. From this it can be concluded that from zone-2 to zone-4 circular tank should be preferred but in zone-4 rectangular shape tank should be preferred.