Comparative Analysis of Circular and Rectangular Water Tank in Severe Seismic Zones

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 full condition after detailed analysis it was found that In tank full condition, rectangular tank shows lower values in zone -2 and zone-4 the increment is not much higher but in zone-3, circular shape shows very high about 19.92% higher values than rectangular tank. So, it can be concluded that use of rectangular shapes will prove efficient in all zones especially in zone-3. From this comparative graph it can be seen that rectangular tank gives higher values of displacement in all zones while circular tank shows lowest values in all zones. In zone-2 rectangular tank gives 4.45% and in zone-4 it gives 13.67% higher values than circular than