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Things To Consider When Selecting A Foundation For Your Building

Logan Smith
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Logan Smith
12:48, հինգշաբթի, 12 մայիսի, 2022 թ.
Things To Consider When Selecting A Foundation For Your Building

Foundation and posts are the most crucial component of any build. Just as a chain is as strong as its weakest link, a building is as strong as the strength of its foundation. Whether it is a residential storage building, animal shelter, manufacturing plant, or airplane hangar, the foundation should be strong and able to withstand the loads and additions in the future. Ultimately, your foundation will decide how well your building withstands the test of time and natural calamities.


    

Accordingly, the range of posts and foundation options offered by professional building contractors like Premium Built are both beneficial and confusing. Beneficial in the sense you can choose the one that fits best with your needs. On the other hand, the variety can confuse you in deciding which will work best for your building.


    

Some of the posts and foundation options you will have include;


    

Screw pilings: A ground anchoring system that works best with buildings that need a deep foundation.


    

Perma column: This system is built on concrete and no wood is involved in the foundation.


    

Post saver wraps: This system wraps the foundation with bituminous paper using the heat shrink method.


    

Laminated posts: The system consists of pressured-laminated glue posts. It enhances the strength owing to the increased adherence power.


    

Sturdy wall columns: These are the extra adhering structures added to concrete posts to increase their strength.


    

The availability of such a range of posts and foundations indicates that varied circumstances and conditions need different foundations. Hence, making the selection of an appropriate foundation based on special circumstances is crucial.


    

The following article explains the top things you should consider before selecting the foundation for your building.


    

Load Of The Buildings


    

It won’t be an exaggeration to term loading conditions as the governing factor in determining the type of the foundation. Load is influenced by the type of materials, construction techniques, earthquake susceptibility, and environmental factors.


    

Thus, the selection of materials such as stone, steel, bricks, and concrete all affect the selection of the foundation. Settlement calculation of the foundation is another aspect associated with the load of the building.

As a simple rule of thumb, low-rise buildings need a shallow base while high-rise buildings need a deep post foundation. Deep base foundations are strong because the land at greater depth is highly compact.


    

Soil Bearing Capacity


    

Soil bearing capacity is another crucial factor to consider when choosing the type of foundation for your building. The decision on using shallow or deep foundations depends on the soil’s ability to hold.

The acceptable bearing pressure for shallow foundations supporting a low-rise building (about 4-stories) is at least 100 KN/m2. On the other hand, higher buildings can use a raft foundation given that the modulus of the subgrade does not exceed the limit when calculated.


    

Soil Types


    

There are different types of soil such as expansive soil, loose soil, clayey soil, and sandy soil. The soil of the area is divided into two terms. While a surface depth of up to 3m is termed topsoil, the following depth of 3m is termed as subsoil.

Characteristics like the bearing capacity of both topsoil and subsoil will to a great extent control your choice about the type of foundation you select.

Soil with low-bearing capacity should have a strong foundation as compared to the case where the soil is of high bearing capacity. The bearing capacity of a soil is its ability to hold the structural loads without suffering sheer and intolerable settlement.


    

Ease Of Construction


    

Next, you should choose the foundation according to the ease of its installation. Different types of posts and foundations require different types of labour with specific skill sets. Moreover, not all contractors provide and master all types of foundations. So, keep in mind that if you select some complicated foundation structure, you will need more time and effort to find the appropriate contractor.


    

Water Table Level


    

The foundation should never be built on soil that expands and contracts based on the level of water. Instead, it should be built either on completely dry soil or wet soil. Making an underground water table is another important factor to consider when deciding on the foundation of the building.

If the water table is below the formation level of your foundation, you should use a low footing foundation. Isolated or combined footings are your choices in these circumstances. Similarly, for a higher foundation, you can use a raft or mat footing.

These are the counteracts to uplift pressure and counter the effect caused by the water to avoid the adverse events at the initial stages of the construction.


    

Conclusion


    

Foundation and posts are the most important components in determining the strength of your building. Different types of foundations work best for different circumstances. Types of soil, water levels, and other factors must be considered before deciding on the type

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