Variation of Seismic Forces with Volume of Liquid for Elevated Tank

Abstract

Now a day’s large storage capacity tanks are designed to facilitate need of human being, and as such the seismic analysis and design for these large storage tanks has become more important. Circular elevated water tank gives more economical results and performance in seismic region. Hence, circular water tank has been adopted for study. Performance of elevated water tank has been studied as per IS 1893-2002 (Draft) with IITK-GSDMA guidelines. The analysis is carried out for staging height ranging from 3m to 45m. Seismic forces on elevated water tanks are calculated and different parameters such as time period, base shear and base moment are presented. The objective of this paper is to study the influence of staging height on elevated water tank. Finite element software ETABS has been used.