Design Of Elevated tank With Staad. Pro. Including Research Paper

1. ELEVATED WATER TANK
GREATER NOIDA INSTITUTE OF TECHNOLOGY
PROJECT ON
SUBMITTEDBY:-
Ritik Raj
DEPARTMENT OF CIVIL ENGINEERING

2. INTRODUCTION
 An elevated water tank is a large water storage container constructed
for the purpose of holding water supply at certain height to pressurize
the water distribution system.
 A large number of overhead water tanks damaged during past
earthquake.
 Design of new tanks and safety evaluation of existing tanks should be
carried out with a high level of accuracy because the failure of such
structures, particularly during an earthquake

3. The current strength of Greater Noida institute of technology is 6000
student 200 faculty and 200 worker approx including mess member but in
case of future development of college strength of student will rise upto 8000
and faculty will be 300 and worker will be rise upto 300( including their family
member.
This tank is designed for Greater Noida institute of technology for various
purpose like for drinking, in bathroom, in mesh for cooking, washing of
clothes washing for utensils, washing and cleaning of hostel, mess, academic,
lawn of watering and gardening, flushing of water closets etc.

4. OBJECTIVE
The objective of present work is to study the design and estimation of intze
tank and to know about the philosophy for the safe and economical design
of water tank under the guidelines for the design of liquid retaining
Structure as per IS code.

5. NEED AND
JUSTIFICATION
 For regular supply of water to domestic, industrial and commercial we
need to make a storage tank.
 Cracks and leakages are major problem induced in tanks, to overcome
this problem we need to design a well stable and efficient water tank.
 Everytime we face the problem of low pressure at water tap to maintain
the pressure for efficient supply we need to design elevated tank.
 Some elevated tank like circular water tank fail due to heavy
reinforcement at bottom to overcome this we need to design intze tank.
 The main advantage of such tank are that the outward thrust from the
top of conical part resist by ring beam.

6. WATER DEMAND FOR VARIOUS
PURPOSE (IS code 1172:1993)
Types of
consumption
Normal Range
(lit/capita/day)
Average %
1 Domestic
Consumption
135-200 160 35
2 industrial and
Commercial
Demand
40-450 135 30
3 Public including
Fire Demand Uses
20-90 45 10
4 Losses and Waste 45-150 62 25

7. LITERATURE REVIEW
M.S Mhetre
PG Student
Civil Engineering
Maharashtra, India
G.R Patil
Professor
Civil Engineering Department
Maharashtra,india

8. INTRODUCTION
 Liquid tanks and especially the elevated tanks are structures of high
importance which are considered as the main lifeline elements that
should be capable of keeping the expected performance. i.e. operation
during and after earthquakes.
 Earlier design of water tanks was being done using the working stress
method given in IS: 3370 1965
 Their safety and behavior is critical during strong earthquakes as they
contribute for essential requirements viz. drinking water, fire fighting’s in
case of fire accidents, etc.

9.  OBJECTIVE:
1.To determine the hydrodynamic effect on Elevated Intze type water tank with different
staging system.
2.To determine Base Shear on water tank.
3.To determine Max. Nodal displacement at the top of water tank.
 SCOPE FOR THE PRESENT WORK:
• In this study finite element modeling of water tank was carried out by using software
package STADD Pro V8i 2007.
• An attempt was made to study the effect of different staging systems in tanks. For this,
seismic analysis was done for full water level and half water level conditions.

10.  Types Of Bracing System Used:
Different models are used for calculating base shear and nodal displacements for staging
without diagonal bracing, staging with cross bracing , staging with chevron bracing,
staging with diagonal bracing , staging with k-type bracing, staging with v-type bracing.
 STADD PRO V8I 2007
• STAAD.Pro.v8i is the most popular structural engineering software product for 3D model
generation, analysis and multi material design.
• It is user-friendly GUI, visualized tools, powerful analysis and design facilities and
seamless integration to several other modeling and design software products.
• STAAD Pro. has been the choice of design professionals around the world for their
specific analysis needs.

12. INTZE TANK MODELS

15. MATERIALS AND METHOD
USED
Concrete mix weaker than M-20 is not used because of higher grade lesser
porosity of concrete.
Minimum quantity of cement in concrete shall be not less than 30 KN/m3 .
Use of small size bars.
Minimum cover to all reinforcement should be 20 mm or the diameter of
main bar whichever is greater.
Code using IS: 3370-PART 2-2009
 IS: 456:2000
The leakage is more with higher liquid head and it has been
observed that water head up to 15m does not cause leakage problem.

16. RESULTS

18. CONCLUSION
1. Base shear increases as the level of bracing increases because, bracing
system put on additional mass to the structure, which results into increase in
base shear value.
2.Similarly base moment is found to be increased as the level of bracing
increases.
3.Lateral displacement and time period of vibration is reduced considerably
because, bracing systems increases the stiffness of structure, which reduces
the lateral displacement and hence the time period of vibration.