USES OF DIFFERENT TYPES OF FOOTINGS

 USES OF DIFFERENT TYPES OF FOUNDATIONS/ FOOTINGS

The different types of foundations/footings serve uses in their own separate ways.

1. STRAP FOOTING:-When the distance between the column is so great that the combined trapezoidal footing becomes fairly narrow, with a strong bending moment, a strap footing may be employed.

2. ISOLATED FOOTING:- When single - columns are positioned at a great distance, an isolated footing is one of the most commonly utilized type of foundation. An isolated footing must be built to avoid exceeding its bearing capacity, offer safety from overturning or sliding, and keep the ground from setting.

3. SPREAD FOOTING:- When compared to a load bearing foundation, a spread footing/foundation has a wider bottom component; the wider bottom "spreads" the structure's weight across a larger area for greater stability. Spread footings are used to support a foundation or piers beneath a structure.

Spread foundation can also be used in the following ways: -

CONCRETE SPREAD FOOTINGS:- Spread footings are used to support a building's foundation or piers. Spread footings, which are made of concrete and reinforced with steel, provide additional support.

SPREAD FOOTING WITH PIER:- Spread footings are used to support a foundation or piers beneath a structure. Spread footings are made of concrete and reinforced with steel to provide additional support. 

4. RAFT FOOTING:- Raft foundations are commonly used to support structures such as residential or commercial buildings in poor soil conditions, storage tanks, silos, and large industrial equipment foundations, among other things.

5. COMBINED FOOTING:- When only a single column appears in the foundation plan of a project, this style of footing is preferred. The term "combined footing" refers to a foundation that can carry two or more column loads. These might be rectangular or trapezoidal in plan and can be continuous.