Design of RCC Rectangular Water Tank: A Comparative Study Between Approximate and IS Code Method

Abstract

Enormous research has been made to meet the water demand either on commercial or public level via RCC tank supply. Meanwhile minimal researches are made on rectangular RCC water tanks. Tanks are significantly used as storage structure which can be either below or above from ground level to store liquid petroleum, water, petroleum products and in-distinguishable liquids. The paper emphasizes on analytical comparison to justify the effectiveness of rectangular water tank for nominal capacity in terms of material feasibility design by approximate method and IS code method. When compared, several parameters such as moment, direct tension & depth of vertical walls as well as slab got analysed in which IS code method overwhelmed approximate method. IS code method have been proved economical & feasible during design. The tanks resting on ground are directly supported on levelled ground and the walls of these tanks are subjected to hydrostatic pressure while the base of the tank is subjected to weight of liquid with upward soil pressure. The base performs no special structural function and can be designed with the minimum required steel. To have complete construction overview including technical and financial estimation of rectangular RCC water tanks, our basic objective is to create a good service with functional utility at an acceptable cost.