construction process for muli use building

This is also used to prevent uplift of the structure due to lateral loads such as earthquake and wind forces. Pile foundations are used to transfer heavy loads of structures through columns to hard soil strata which is much below ground level where shallow foundations such as spread footings and mat footings cannot be used. The wider base of this footing type spreads the weight from the building structure over more area and provides better stability. Spread footings are those whose base is wider than a typical load-bearing wall foundations. Spread footings or Strip footings and Wall footings The shape of this footing is a rectangle and is used when loads from the structure is carried by the columns.

It is a combination of isolated footings, but their structural design differs. Combined FootingĬombined footing is constructed when two or more columns are close enough and their isolated footings overlap each other. So, for a square footing, the length and width of the footing will be 1.414 m x 1.414 m. Rectangular isolated footing is selected when the foundation experiences moments due to the eccentricity of loads or due to horizontal forces.įor example, Consider a column with a vertical load of 200 kN and a safe bearing capacity of 100 kN/m 2 then the area of the footing required will be 200/100 = 2m 2. Size is calculated based on the load on the column and the safe bearing capacity of soil.

The shape of individual footing is square or rectangle and is used when loads from the structure is carried by the columns.

This foundation is constructed for a single column and also called a pad foundation. Individual footing or an isolated footing is the most common type of foundation used for building construction. Drilled Shafts or Caisson Foundationįollowing are different types of foundations used in construction:

Construction process for muli use building