Which type of foundation used in residential building ?
Hello guys today we will discuss which type of foundation we will used in construction of resident building and which will more economical and durable. We learnt various type of foundation but we have to use that foundation which will safe and economical.
As we know we mostly cant used deep foundation in residential building because it cause too much cost and our structure does not contain that much of loading. But when soil contain expansive nature and too much low bearing capacity than we have to go with deep foundations.
Lets first see various type of shallow foundations according uses
In Load bearing residential building
In load bearing structure we generally use strip footing as a foundation.
Strip footing is the simplest footing in shallow foundation in this footing masonary wall laid on plain cement concrete or brick bat cement concrete.
 |
| Strip Footing |
This type of shallow footing only used in load bearing residential building where numbers of stories are less.
In frame structures residential building
In frame structure we go for following footing.
1. Spread or isolated footing
2. Combined footing
3. Strap or cantilever footing
4. Mat or raft Foundation
1.Spread or isolated footing
Spreadfooting consists wide base below column. This type of foundation widely used in construction of residential building.
There are two type of spread footing.
1.pad footing
2.slope footing
1.1.pad footing
In pad footing slope is not provided only rectangular Reinforced cement concrete slab is provided below RCC column.
In this type of footing design and analysis is simple compare to slope footing.
1.2.slope footing
In slope footing slope is provided at 45 degree with respect to horizontal. The main function of this slope is to avoid punching failure. The design and analysis is time consuming.
 |
|
2.Combined footing
Combinedfooting are provided when ,
1. Centre to centre distance is more between column
2. Very high load
3. Eccentric loading on column
4. Property line of building near to building
In combine footing two or more column are join with one slab.
Combine footing has a two type
2.1.Rectangularcombine footing
2.2.Trapezoidalcombine footing
Trapezoidal combine footing provided where there is very large difference between loading in column.
3. Strap or cantilever footing
 |
| Strap or cantilever footing |
In strap footing RCC beam(strap) is provided to join two or more column with each other. This type of footing are not generally used in residential building because of less loading.
4.Mat or raft foundation
In mat or raft foundation, RCC slab is provided below all column. Whole area is excavated , then RCC slab is provided in entire area and column are place above that slab. This type of foundation is provided where there is heavy loading or bearing capacity is too low.
|
| Mat or raft Foundation |
This type of foundation are generally not provided in residential houses, this type of foundation are provided in 3-4 or above four stories complex’s or hotels.
I Hope You Like Our Article which type of foundation used in residental building ? Don’t be Cheap To Share This Article with your Friends.
______________________________________________
Also read