Reinforced Concrete Water Tanks are constructed mainly in three types. They are:Â
- Underground TanksÂ
- Elevated TanksÂ
- Tanks over the groundÂ
The codes that are used for water tank design is IS: 3370. The different parts of the code is mentioned along with the respective sections dealt.
Connections
The main connection that is concerned in the water tank design is between the water tan walls and the bottom floors. The joint provided here can be of three types. They are:- Fixed JointÂ
- Hinged JointÂ
- Free Base or a Flexible JointÂ
A fixed base and a hinged base have a restrain action which will result in moments and tension that have to be calculated.
- This will require Moment coefficient and ring tension at the base. Non-dimensional parameters can be used to express the moment coefficients.
      The parameter is: H2/ Dt
Here H = Height of the Tank
D = Diameter of the Tank
t = thickness of the tank wall
A free base between the walls and the base will not bring any restrain reactions or moments which will require only the determination of the hoop tension that is created due to hydrostatic pressure.
Special Considerations
- Richer Mix are employed - M20 & M30Â
- High Water Tightness have to be providedÂ
- The bending and tension stress value is kept within the permissible value in order to prevent cracking. As per Table. 1Â
- The permissible stress in steel is as per Table.4Â
Main Types of Water Tank
- Circular Water TankÂ
- Rectangular Water TankÂ
- Intze Type Water TankÂ
0 Comments
Commenting Spam Links Are Against Policies