Storage reservoirs and overhead tank are used to store water, liquid petroleum, petroleum products and similar liquids. The force analysis of the reservoirs or tanks is about the same irrespective of the chemical nature of the product. As from very offensive past records, many reinforced concrete elevated water tanks were collapsed or highly damaged during the earthquakes all over the world. General observations are pointing out the reasons towards the failure of supporting system which reveals that the supporting system of the elevated tanks has more critical importance than the other structural types of tanks. Most of the damages observed during the seismic events arise due to the causes like improper/unsuitable design of supporting system, mistakes during selection of supporting system, improper arrangement of supporting elements and/or underestimated demand or overestimated strength. The present work aims at checking the adequacy of water tank supported on shafts for the seismic excitations. The result shows that structure response is exceedingly influenced by different capacities of water tank and their one mass and two mass models and earthquake characteristics.

SK.NASEEMA,G.SHANI PRIYANKA."Structural assessment for reinforced concrete elevated overhead water tank". International Journal of Computer Engineering In Research Trends (IJCERT) ,ISSN:2349-7084 ,Vol.2, Issue 12,pp.965-970 , December- 2015, URL :https://ijcert.org/ems/ijcert_papers/V2I1228.pdf,

[1 ] Chirag N. Patel, H. S. Patel‖ Supporting systems for reinforced concrete elevated water tanks‖, International Journal of Advanced Engineering Research and Studies, Vol. II, Issue I, Oct.-Dec.,2012. 
[2 ] S.K. Jain, U.S. Sameer, ―Seismic Design of Frame Staging for Elevated Water Tanks‖, Ninth Symposium on Earthquake Engineering, Roorkee, December 14-16, 1990, Vol.1. 
[3 ] G. W. Housner, The Dynamic Behavior of Water Tanks, Bulletin of the Seismological Society of America, Vol.53, No.2, pp.381-387, Feb1963. 
[4 ] Durgesh C Rai, (2003) ―Performance of Elevated Tanks in Mw 7.7 Bhuj Earthquake of January 26th, 2001‖ International journal of advanced engineering research Proc. Indian Acad. Sci. (Earth Planet. Sci.), 112, No. 3, September 2003, pp. 421-429 
[5 ] Chirag N. Patel, Burhan k. kanjetawala, H. S. Patel ―Influence of Frame Type Tapered Staging on Displacement of Elevated Water Tank ‖ GIT-Journal of Engineering and Technology, ISSN 2249 – 6157, Sixth volume, 2013, 
[6 ] Pravin B.Waghmare, Atul M. Raghatate & Niraj D.Baraiya ―Comparative Performance of Elevated Isolated Liquid Storage Tanks (With Shaft Staging)‖, International Journal of Advance technology in civil engineering, ISSN:2231-5721, Volume 1, Issue 2-2012. 
[7 ] S. C. Duta, S. K. Jain and C. V. R. Murty, ―Assessing the seismic torsional vulnerability of elevated tanks with RC frame-type staging‖, Soil Dynamics and Earthquake Engineering (ELSEVIER), 2000, Vol. 19, pp. 183-197 
[8 ] S. C. Duta, S. K. Jain and C. V. R. Murty, ―Alternate tank staging configurations with reduced torsional vulnerability‖, Soil Dynamics and Earthquake Engineering (ELSEVIER), 2000, Vol. 19, pp. 199-215 
[9 ] IS: 11682-1985, Criteria for Design of RCC Staging For Overhead Tanks (1985),Bureau of Indian Standards, New Delhi, 
[10]+ M. Kalani and S. A. Salpekar, ―A comparative study of different methods of analysis for staging of elevated water tanks‖, Indian Concrete Journal, JulyAugust – 1978, Pg No.210-216. 
[11]+ M. V. Waghmare, S.N.Madhekar ―Behaviour of elevated water tank under Sloshing effect‖ International Journal of Advanced Technology in Civil Engineering, Volume-2, Issue-1, 2013 *12 + S.K.Jain & et al., ― proposed provision of aseismic design of a liquid storage tank‖ , journal of structural engineering,vol 20 no.4 january 1994 pp. 167-175.
 [13]  Ayazhussain.M.Jabar, H.S.Patel, ―Seismic Behaviour Of RC Elevated Water Tank Under Different Staging Pattern And Earthquake Characteristics‖, International Journal Of Advanced Engineering Research And Studies, April-June2012. 
[14] Pavan .S. Ekbote, Jagdish Kori, ―Seismic Behaviour of RC Elevated Water Tank under Different Types Of staging Pattern‖, Journal Of Engineering,Computers and Applied Sciences, Volume 2, No.8, August 2013. 
[15 ] .R. Livaoglu, A. Dogangün, ―An Investigation about Effects of Supporting Systems on Fluid-Elevated TanksInteraction‖, First International Conference on Seismology and Earthquake Engineering (SEE), Turkey, May – 2007