Comparative Seismic Analysis of Intz Tank with Change in Seismic Severity

A 10lac liters of Intz type water tank is considered for this thesis work. The structural size was decided on the basis of the various literates studied and considering practical site considerations. For this purpose, types of loads and their intensities were considered as per the particular Indian code such as IS 875 part-01 and 02 for dead load and live load and IS 1893 part 01 for seismic loading on water tank. As these loading and loading combinations undergoes a tedious manual calculations structural design software Staad Pro. will be used for analysis and design. After detailed analysis it is found that Values of base reactions in horizontal direction due to seismic action increases drastically with 260 % from 53.93 in Zone II to 194.22 in Zone V, representing very high significance of change in seismic severity. Values of base reactions in vertical direction increases gradually with 52.57 % from 1957.08 Kn in Zone II to 2986.02 Kn in Zone IV, representing moderate significance of change in seismic severity. Values of base moments shows again shows drastic increase of 257.62 % from 139.74 Kn.m in Zone II to 499.74 Kn.m in Zone IVin horizontal direction. Whereas there is no such major change found in moments in vertical directions.