Water tanks are frequently used for storing potable water. Due to inadequacy of water around the world, significance is given more on the water storage project. So water storage is very essential as it plays a vital role in everyday life. water tanks and Storage reservoirs are used to store water, petroleum products, liquid petroleum, and similar liquids. All tanks are analysed and designed as crack free structures to get rid off any leakage. This project provides a brief explanation of the theory underlying the manual analysis and design of an overhead circular water tank using the Working Stress Method (WSM) and software modeling and analysis using Stat-Pro.
Water is an essential necessity for human survival, and the distribution of enough water in a given region depends on the water tank's design. An elevated water tank is a type of water storage container used to maintain a water supply at a height high enough to pressurize a water distribution system. They were swept away by the wind. Damage of the important lifeline facility like elevated water tanks often results in significant hardships even after the occurrence of the disaster, claiming human casualties and economic loss to build environment. Investigating the effects of wind has been recognized as a necessary step to understand the natural hazards and its risk to the society in the long run. Because water towers rely on the elevation of water caused by gravity and hydrostatic pressure to force the water into home and industrial water distribution systems, they can provide water even when there is no electricity.
To make a study about design of water tank.
Design of Circular Overhead Water Tank by WSM and other staging members by LSM Method.
To make a study about the Analysis of Water Tank using Staad-Pro.
To make a study about the guidelines for the Design of Liquid retaining Structures according to IS Code.
In this project we have designed a Water Tank Manually and same analyzed on Staad-Pro software.
A. Data Collection
Details of data collection
Capacity of tank
Soil bearing capcity
125 KN/sq.m at minimum depth 3.00m
Height of tank from ground
Grade of steel
Grade of concrete
Ground water table
Maximum height of water table is assumed to be well below the foundation strata level hence no uplift pressure has been considered in the design footing.
External force on tank
Basic wind speed 39m/s
Width of gallery
Use of water
Domestic purpose only
Current population in year 2011
Population forcasting 2041
B. Population Forcasting
We have forecasted the population by using Arithmetic Mean Method. We have collected the data from our proposed site and received data from 1979. Has been forecasted till 2041 by Arithmetic Progression.Population Forecasted is 3500 no of people.
III. DESIGN CRITERIA
Dead Load: The weight of all permanent construction including domes, ring beams, walls, stair case, slabs and foundation are considered. The unit weights of materials are in accordance with IS: 875-1987. The unit weight of Concrete (RCC),Soil,, Structural steel is taken as 25 kN/m3 ,18 kN/m3 ,78.5 kN/m3.
Live Load:The Live load on roof slab, walk way slab and staircase be 1.5 kN/m2, 1.5 kN/m2 and 2.0 kN/m2 respectively.
Water Load:Weight of water due to gross volume is calculated and applied on bottom of container unit wt. of water is 10 kN/m3
Wind Load:As per figure -1 IS: 875(PART-3)-1978) design wind pressure = 0.6Vz2 = 2117.01 N/m2
Earthquake load (EQ)
It is in zone-III as per IS 1893 part1 2002
Seismic coefficient αh = βIFo(Sa/g)
β , coefficient of depending upon soil foundation = 1
I, factor depending upon importance of factor = 1.5
So, seismic zone factor for average acceleration spectra = 0.16
Sa/g is considered as per CI 6.3.5,(IS 1893,part-1).
1) The tank has been analyzed in STAAD Pro software.
2) In terms of the loads used, tank design is safe from software design.
3) We use circular water tanks for larger capacity while rectangular water tanks are used for smaller capacities. Since our proposed tank is of 1.40 lakh capacity we had prepared and analyzed the circular over head tank in STAAD Pro software.
4) Design of water tank is also done by manually by WSM and LSM method.
5) Design of water tank by manually and by using software are within limit and safe.
 Bhandari, M. (2014). Water Tank Of Different Shapes With Reference To IS: 3370 2009. International Journal of Modern Engineering Research.
 Gunasekaran, Y. K. (2016). Analysis and Design of Sump and Overhead Tank and Usage of Sensors in Residential Apartment in Nanganallur, Chennai. International Journal of Engineering Research and Technology.
 Harsha, K. (2015). Seismic Analysis and Design of INTZE Type Water Tank. International Journal of Science Technology and Engineering.
 Jindal, B. B. (2012). Comparative Study Of Design Of Water Tank With Reference To IS: 3370. Proceeding of Innovative Challenges in Civil Engineering.
 Kapadia, I. (2017). Design Analysis and Comparison of Underground Rectangular Water Tank by Using Staad Pro Software. International Journal of Scientific Development and Research.
 Meshram, M. N. (2014). Comparative Study of Water Tank Using Limit State Method and Working Stress Method. International Journal of Research in Advent Technology.
 Murthy, B. R. (2016). Design of Rectangular Water Tank by Using Staad Pro Software. International Journal of Computer Science Information.
 Nallanathel, M. M. (2018). Design and Analysis of Water Tanks Using Staad Pro. International Journal of Pure and Applied Mathematics.
 DESIGN AND ANLYSIS OF WATER TANKS USING STAAD PRO By Mr. Manoj Nallanathel.
 IssarKapadia, Purav Patel, NileshDholiya and Nikunj Patel (2017). “Design, Analysis and Comparison of Underground Rectangular water tank by using STAAD Provi8 software”. International Journal of Scientific Development and Research (IJSDR), January 2017, Volume 2, Issue 1, ISSN: 2455-2631.
 Thalapathy.M, Vijaisarathi.R.P, Sudhakar.P, Sridharan.V, Satheesh.V. S (2016). “Analysis and Economical Design of Water Tanks”. International Journal of Innovative Science, Engineering & Technology, Vol. 3, Issue 3, ISSN 2348 – 7968
 IS: 456-2000 : Code of practice for plain and reinforced concrete
 IS:875-1987(PART-2) : Design loads for buildings and structures.
 IS:1893-1984 : Criteria for earthquake resistant design of structures.
 IS: 3370-2009 : Concrete structures for storage of liquids.
 IS: 1905-1987 : Code of practice for structural use of unreinforced masonry
 IS:6403-1981 : Code of practice for determination of bearing capacity
 IS:11682 : Criteria for design of RCC staging for overhead water tank