comparison of structural analysis and design of a rectangular and circular over head water tank using staadprov8i sofware as per i.s code

civil engineering

Indian sub- continent is highly vulnerable to natural disasters like earthquake, draught, floods, cyclones etc. Majority of states or union territories are prone to one or multiple disasters. These natural calamities are causing many casualties and innumerable property loss every year. Earthquakes occupy first place in vulnerability. Hence, it is necessary to learn to live with these events. According to seismic code IS: 1893(Part I): 2000, more than 60% of India is prone to earthquakes. After an earthquake, property loss can be recovered to some extent however, the life loss cannot. The main resign for life loss is collapse of structures. It is said that earthquake itself never kills people, it is badly constructed structures that kill. Hence it is important to analyse the structure properly for earthquake effects. In this project, the modelling of both rectangular and circular water tank is considered for understanding the behaviour during the earthquake. The staging height also varied for different height for a constant capacity of tank of 1 Lakh Liters. Both static and dynamic analysis are carried out and results and tabulated and compared. From the analysis the following conclusions are obtained. The displacement values of elevated tank show that, the displacement values depend on the height of the structure for the same capacity. The Increase in height increases the displacement. For Circular Tank, the increase in staging increases the displacement by 72% and 250% for model Type C2 and C3 when compared with Model Type C. It can be concluded that, the rectangular tanks are better for seismic prone areas and Circular tanks are better for critical wind areas.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.