Types Of Footing – The different types of footing used for building construction are described below:
Wall footing/Strip footing. Spread Footings Isolated footings. Stepped footings. Combined footings. Sloped footings. Mat or Raft foundation. Strapped footings Pile foundation.
1. Strip footing Strip footing is a component of shallow foundation which distributes the weight of a load-bearing wall across the area of the ground. It is also known as wall footing. This type of footing is commonly used as foundations of load-bearing walls where the soil is of good bearing capacity. 2. Spread Footing As the name suggests, a spread is given under the base of the foundation so that the load of the structure is distributed on wide area of the soil in such a way that the safe bearing capacity of soil is not exceeded.
3. Isolated Footings These types of footings may be square, circular, or individually rectangular slab of uniform thickness, provided under each column.
4. Stepped Footings The main purpose of using stepped footing is to keep the metal columns away from direct contact with soil to save them from corrosive effects. This type of footing is used to carry the load of metal columns and transmit this load to the below ground.
5. Combined Footings When two or more columns are supported by a footing it is called combined footing. This type of footing may be rectangular or trapezoidal in plan. Combined footing is provided under the following situations. • When columns are close to each other and their individual footings overlap.
6. Strap Footing In this type of footing, the outer and inner column is connected by a strap beam, does not transfer any load to the soil. The individual footing areas of the columns are so arranged that the C.G of the combined loads of the two columns passes through the C.G of the two footing areas. 7. Raft Foundation This foundation covers the entire area under the structure. This foundation has only RCC slab covering the whole area or slab and beam together. These types of footing are adopted when heavy structures are to be constructed on soft made-up ground or marshy sites with uncertain behavior. Raft foundation is also known as mat foundation.
8. Sloped Footing Or Trapezoidal Footing These types of footing having a sloping top or side faces are known as sloped footings. They are useful in the construction of formwork,
So, these were different types of footings used in construction. I hope you now have enough knowledge about it. If you have any questions let me know in the comments. Also Read Types Of Foundation Types Of Abutment Methods Of Retrofitting For More Updates like our Facebook Page and join our Telegram Channel,
Contents
What are the different types of footings in construction?
Types Of Footing – The different types of footing used for building construction are described below:
Wall footing/Strip footing. Spread Footings Isolated footings. Stepped footings. Combined footings. Sloped footings. Mat or Raft foundation. Strapped footings Pile foundation.
1. Strip footing Strip footing is a component of shallow foundation which distributes the weight of a load-bearing wall across the area of the ground. It is also known as wall footing. This type of footing is commonly used as foundations of load-bearing walls where the soil is of good bearing capacity. 2. Spread Footing As the name suggests, a spread is given under the base of the foundation so that the load of the structure is distributed on wide area of the soil in such a way that the safe bearing capacity of soil is not exceeded.
3. Isolated Footings These types of footings may be square, circular, or individually rectangular slab of uniform thickness, provided under each column.
4. Stepped Footings The main purpose of using stepped footing is to keep the metal columns away from direct contact with soil to save them from corrosive effects. This type of footing is used to carry the load of metal columns and transmit this load to the below ground.
5. Combined Footings When two or more columns are supported by a footing it is called combined footing. This type of footing may be rectangular or trapezoidal in plan. Combined footing is provided under the following situations. • When columns are close to each other and their individual footings overlap.
6. Strap Footing In this type of footing, the outer and inner column is connected by a strap beam, does not transfer any load to the soil. The individual footing areas of the columns are so arranged that the C.G of the combined loads of the two columns passes through the C.G of the two footing areas. 7. Raft Foundation This foundation covers the entire area under the structure. This foundation has only RCC slab covering the whole area or slab and beam together. These types of footing are adopted when heavy structures are to be constructed on soft made-up ground or marshy sites with uncertain behavior. Raft foundation is also known as mat foundation.
8. Sloped Footing Or Trapezoidal Footing These types of footing having a sloping top or side faces are known as sloped footings. They are useful in the construction of formwork,
So, these were different types of footings used in construction. I hope you now have enough knowledge about it. If you have any questions let me know in the comments. Also Read Types Of Foundation Types Of Abutment Methods Of Retrofitting For More Updates like our Facebook Page and join our Telegram Channel,
Which type of wall footing is best suited for small buildings?
🕑 Reading time: 1 minute Wall footings are pad or spread and strip footings which are used to support structural or nonstructural walls to transmit and distribute the loads to the soil in such a manner that the load-bearing capacity of the soil is not surpassed.
- In addition to avoiding excessive settlement and rotation and maintain sufficient safety against sliding and overturning.
- Wall footing runs along the direction of the wall.
- The size of the footing and the thickness of the foundation wall are specified on the basis of the type of soil at the site.
- The width of the wall footing is generally 2-3 times the width of the wall.
The wall footing can be constructed from stone, brick, plain concrete, or reinforced concrete. Economical wall footing can be constructed provided that the imposed load needed to be transmitted are of small magnitude and the underlying soil layer is of dense sand and gravels.
🕑 Reading time: 1 minute Wall footings are pad or spread and strip footings which are used to support structural or nonstructural walls to transmit and distribute the loads to the soil in such a manner that the load-bearing capacity of the soil is not surpassed.
- In addition to avoiding excessive settlement and rotation and maintain sufficient safety against sliding and overturning.
- Wall footing runs along the direction of the wall.
- The size of the footing and the thickness of the foundation wall are specified on the basis of the type of soil at the site.
- The width of the wall footing is generally 2-3 times the width of the wall.
The wall footing can be constructed from stone, brick, plain concrete, or reinforced concrete. Economical wall footing can be constructed provided that the imposed load needed to be transmitted are of small magnitude and the underlying soil layer is of dense sand and gravels.
What is a footing in a foundation?
Strapped footing – In this type of footing, the outer and inner column is connected by a strap beam does not transfer any load to the soil.