Yes... Now I'm working in Ground reservoir project .... This shape is use to chamber
Haunch bar, it is used in bottom and top corners of box culvert
It is a haunch reinforcement usually provided in RCC water sumps ,OHT & provided in 1/3rd height above the base of sump/tank to distribute the stress due to lateral water pressure on a bigger changers area
What is the structure, is it a tunnel? It is like a stiffener, it is part of the design, in case of the wall , if it is too high and to accommodate external pressure this type of stiffener will be provided. I have seen in the tunnel roof with this kind of stiffener so as to minimize the thickness of the slab. Normally, we can see the culvert across the road with this type of stiffener at supporting the end of the slab
Use of Haunch Bar?
1. If Haunch Bar is used in the bottom of the tank and other load-bearing structures from the side, then it will provide extra strength or to retain shear form on the wall, because the wall will work like a cantilever.
2. If Haunch Bar is used in Corner of the tank and other structure i.e. retaining wall then it's will reduce the stress developed in the Corner portion and will carry the more shear force.
Haunch Bar's the type of design provided major bridges to resist the water pressure and share resistance this type of bar called Hunching bar
Application of Haunch bar in real life
- Improve Shear resistance
- Avoid leakage
- Improve load caring capacity of side
- Decrease pressure
- Water tank
- Retaining wall
- Box culverts
- Swimming pool