TEERTHANKER MAHAVEER UNIVERSITY PROJECT PRESENTATION ON: DESIGN OF OVER HEAD CIRCULAR WATER TANK Submitted by: AATIF MEHMOOD JARRAL(TEN2005001) VIKAS KUMAR (TEN2005008) HARSH NIRMAL (TEN2117002) INTERNAL GUIDE: Mrs. Nikita J ain
INTRODUCTION 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. Overhead type are built for direct distribution by gravity flow and are usually of smaller capacity.
OBJECTIVES To make a study about the analysis and design of water tanks. 2. To make a study about the guidelines for the design of liquid retaining structure according to IS Code. 3. To know about the design philosophy for the safe and economical design of water tank. 4. To develop programs for the design of water tank of flexible base and rigid base and the underground tank to avoid the tedious calculations.
LITERATURE REVIEW S.K Khariya (2019) 75kl capacity overhead tank at village Bargaon ,Block Pathatiya on 12M.staging use the different portion are different concrete mix for eco nominal design ,water is the most important container to store water therefore , crack with calculation of water tank is also necessary.
Issar Kapadia et al. [3], had done the “DESIGN, ANALYSIS AND COMPARISON OF UNDERGROUND RECTANGULAR WATER TANK BY USING STAAD PROVI8 SOFTWARE”. This paper includes the study of UG Rectangular tank that how the shape deflected and what are the actions will be produced when tank empty or full by using STAAD Pro software is discussed . B.V. Ramana Murthy, M Chiranjeevi [4] had done the “DESIGN OF RECTANGULAR WATER TANK BY USING STAAD PRO SOFTWARE”. In this paper he said that this mini project is conducted for a period of 15 days from 21-05-2010 to 07-06-2010 to have complete practical knowledge of various techniques and problems faced in the field. A different topic like Construction Aspects, Design Parameters, Details of Formwork, Details of reinforcement, Process of Water Treatment Plant and Execution have been dealt with in the course of our mini project.
Thalapathy .M et al. [5], had done “ANALYSIS AND ECONOMICAL DESIGN OF WATER TANKS”. In this paper he said this project gives the detailed analysis of the design of liquid retaining structure using working stress method . This idea for safe design with minimum cost of the tank and give the designer relationship curve between design variable. This paper helps in understanding the design philosophy for the safe and economical design of water tank . Nallanathel . M et al. [6], showed that corner stresses and maximum shear and bending stresses are less in case of circular tanks than remaining other designs and the shapes of water tanks plays vital role in the stress distribution and overall economy and by using Staad pro, the results obtained was very accurate than conventional results
Nikunjr.P,Mistry . J have concluded the following facts that ( i ) Deflection can be reduced by bracing system ; ( ii) Stability of water tank can be improved by providing heavy column at bottom level ; ( iii)At the mid span of top portion get maximum stresses ;( iv) Fluid density must be considered in design and (v) Slab thickness also effect on deflection. Dubey.D.,Dubey.S.,Bajpai.Y.K’s [8] work deals with the Wind analysis of elevated INTZE type water tank using STAAD-Pro Software package. They concluded that Designed Wind forces for zone I is about 19 to 21% less than the that of zone II, about 35 to 37% less than that of zone III, about 45 to 47 % less than that of zone IV, about 55 to 57% less than that of zone V, about 71-73% less than that of zone VI. Also Lateral displacements for zone I is about 29% less than that of zone II, about 45 to 46 % less than that of zone III, about 50 to 52% less than that of zone IV, about 56 to 58% less than that of zone V, about 63 to 65 % less than that of zone VI
DESIGN REQUIREMENT OF CONCRETE (I. S. I) In water retaining structure a dense impermeable concrete is required therefore, proportion of fine and course aggregates to cement should be such as to give high quality concrete. Concrete mix weaker than M20 is not used. The minimum quantity of cement in the concrete mix shall be not less than 30 kN /m3 . The design of the concrete mix shall be such that the resultant concrete is sufficiently impervious. Efficient compaction preferably by vibration is essential.
JOINTS IN LIQUID RETAINING STRUCTURES Movement Joint There are three types of movement joints. Contraction Joint Expansion Joint Sliding Joint
Contraction Joint It is a movement joint with deliberate discontinuity without initial gap between the concrete on either side of the joint. The purpose of this joint is to accommodate contraction of the concrete.
Expansion Joints It is a joint with complete discontinuity in both reinforcing steel and concrete and it is to accommodate either expansion or contraction of the structure. This type of joint requires the provision of an initial gap between the adjoining parts of a structure which by closing or opening accommodates the expansion or contraction of the structure.
Sliding Joint It is a joint with complete discontinuity in both reinforcement and concrete and with special provision to facilitate movement in plane of the joint. This type of joint is provided between wall and floor in some cylindrical tank designs.
GENERAL DESIGN REQUIREMENTS (I.S.I) Plain Concrete Structures. Plain concrete member of reinforced concrete liquid retaining structure may be designed against structural failure by allowing tension in plain concrete as per the permissible limits for tension in bending. This will automatically take care of failure due to cracking. However, nominal reinforcement shall be provided, for plain concrete structural members.
Structural Description 150KL Zink Alume ESR with 12m staging height will be a Zink Alume Circular water tank, supported on RCC column/beam staging (Height of 12m) resting on Raft foundation. The internal diameter of the tank 6.62m and is supported on ring beam , which is supported on column resting on Raft.
SOIL DATA The safe bearing capacity of foundation is taken as 8T/ Sq.m founded at minimum depth of 2m below Natural ground level.
Modeling
MATERIAL AND PROPERTY
SELF WEIGHT ANALYSIS
GEOMETRY STRUCTURE
BENDING MOVEMENT
In conclusion, the design and analysis of the overhead water tank using STAAD Pro have been successfully completed. Through meticulous structural analysis and design iterations, the tank's stability, strength, and durability have been ensured to meet the specified requirements and safety standards. The utilization of STAAD Pro's advanced features facilitated efficient modeling, analysis, and optimization, resulting in an optimal design solution. Overall, the project's successful completion underscores the effectiveness of STAAD Pro as a reliable tool for civil engineering design and analysis tasks. CONCLUSION