There are different types of foundations to choose from, each of which is unique to the soil on which it is built. Let's take a look at some of the basics and how they are built.
Traditional band or orthodox
This is the oldest and most common form of foundation. The method of construction is to dig trenches, place concrete at the bottom, and build walls on it. The width is determined by the relationship between the applied load and the load carrying capacity of the soil; and the practical necessity of working in the trench.
Broadband foundation
This foundation is used in places where the ground carrying capacity is low. For example: wetlands, soft clay silt and ground.
The basis of the weft belt is:
o variants of traditional strips
o Disperse the load into a larger soil area
o usually provides lateral and longitudinal reinforcement to withstand the tension generated by building loads
o The depth below the ground can be the same as the traditional or orthodox strip foundation
Inverted ' T' Beam
This is one of the best; you don't have to worry about the soil.
o It is a substitute for a wide strip base
o It is a wide strip foundation with column beams
o It carries lateral and longitudinal reinforcement
o This type of foundation is used for swelling clay
Deep belt or groove filling foundation
oChanges in traditional strips
o First introduced was to reduce the cost of constructing a traditional strip foundation to a depth of 900 mm or more in shrinkable soil and to offset changing soil conditions.
This type of foundation can prove the economy. why?
o When digging with a machine, the volume of the excavated soil will decrease
o grooves are reduced
o Backfill and remaining soil are also reduced
o Saved time due to faster completion
o Reinforce if necessary
Stepped foundation
The foundation must be horizontal unless it is of course required to resist tilting thrust from walls or certain arches. Placing the strip foundations on the same level of inclined ground will mean deep trenches for those taller, as they will be at a good depth in the basement and therefore require excessive walling in the soil.
Excessive building into the soil may be reduced:
I. Cut only
II. Fill in only
III. Cut and fill to provide a horizontal plane that is built along the slope parallel to the slope to build or step on the foundation of the wall. These are called the basis of the steps.
Isolated column basis from
[also called pad foundation]
The isolation column foundation is a separate square or rectangular concrete slab with a pier or column bearing in the center. Usually this is used to support a uniform, strong and stable frame structure on the soil.
Continuous column foundation
The continuous column foundation is a concrete strip with a column of columns. You can use this foundation because:
1. The spacing in one direction and the loading of the posts cause the edges of the additional individual pads to contact or overlap.
2. The base expansion at right angles to the column is limited, for example by site boundary construction, thus preventing a separate pad of sufficient size.
Combined column basis
Combine the basis of adjacent columns in the following situations:
1. The column is close to the boundary of the site, a separate foundation will be loaded eccentrically
2. The foundation of the sub-column is associated with resistance to bulging, overturning or opposing forces
Because the base of the column adjacent the column boundary does not spread uniformly around the column, it combines with the base of the additional column to form a combined or balanced foundation.
Orignal From: Basic type used when building a house
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