www.iaset.us editor@iaset.us ANALYTICAL AND SOFTWARE BASED COMPARATIVE ANALYSIS OF ON GROUND CIRCULAR WATER TANK CHIRAG N. PATEL 1 & MEHUL S. KISHORI 2 1 Assistant Professor, Department of Mechanics, Government Engineering College, Modasa, Gujarat, India 2 P. G. Student, L. D. College of Engineering, Ahmedabad, Gujarat, India ABSTRACT This paper presents comparative study of analytical and software based methods used for the analysis of on ground concrete circular water tank.An analytical methos consider as per IS 3370 and as given by pca(portland cement association),which are also compare with the result of FE analysis using software staad pro.Importance of the present study is to observe actual behaviour of tank subjected to static loading condition with special emphasis on IS:3370, PCATable and software STAAD. Pro. Different tanks has been considered for the analysis depending on the parameters like dimensional aspect ratio H 2 /Dt (i.e. 14, 8, 4, 0.8 ) and end conditions at bottom having free at top (i.e. Hinged and Fixed) having similar storage capacity of 1 lac liter. Analytical calculations has been carriedout by Excel spread sheet program and finite element models have been observed in STAAD.Pro having similar parameters. Result output of hoop tension and bending moment shows similarity in the considered analytical approach but significant advantage of software based approach due to finite element modeling. Also, it revels that, engineers can apply software based approach more flexibly and efficiently to fulfill the practical tasks of structure modeling and analysis in engineering to achieve economy. KEYWORDS: IS 3370, PCA, STAAD. Pro, Tank, Water Tank INTRODUCTION Water is a basic element for every life on earth. The different need of water is for drinking, irrigation, industrial manufacturing, fire suppression, etc.so it is very important to deal with the storage of water as properly as possible.Water tank is the container for storing water in large quantity. The water tanks are constructed to store water at a ground level for the daily use, treatment of water, product manufacturing, emergency storage, rainwater storage tanks etcSo,it is a very important structure for the human society.The development of the human civilization is introduced many different types of water storage tank. For storing a large capacity of water the circular water tank is preferable. Circular water tank are mainly use for the Industrial water storage, treatment of the waste water, Storage of a large amount of water etc. Shuttering of circular tank is difficult to place at construction site compare to the rectangular water tank. Circular water tanks are not used for smaller capacities of water tank because of the costly shuttering. Circular tanks are prefer for the large capacities since they are economical and have a high stability compare to rectangular water tank. Circular water tank required less construction material than the Rectangular water tank. International Journal of Civil Engineering (IJCE) ISSN(P): 2278-9987; ISSN(E): 2278-9995 Vol. 5, Issue 3, Apr - May 2016; 31-36 © IASET