What is Spread Footing? | Types of Spread Foundation
What is Spread Footing?
Spread footings are a kind of structural element that serves as a base for the foundation of a building. These structures are constructed of concrete and often reinforced with steel or rebar to provide an additional level of support.
Depending on the dimensions and design of the building footers could be placed just below the surface or a few feet below the surface. In colder climates, they must be placed under the frost line to prevent problems with the heaving of concrete that happens during freeze/thaw cycles. Also Read: Terracotta Cladding Tiles
Spread footings can also be used along with spot feet, especially for larger structures. When it is this way the spread footing is placed under the foundation in its entirety that typically covers only the walls on the outside. Spot footers are put beneath individual points on the interior walls to spread heavy loads across the larger area. Also Read: Cost of drain tile system. Also Read: Hip and Valley Roof
Types of Spread Foundation
1. Isolated Footing or Column Footing
Isolated Footing often referred to as Column Footing or Pad Footing as well as Isolated Spread Footing is utilized to transport the weight column's weight and spread it out evenly over the soil below. In the case of Wall footings, they may be made up of reinforced or unreinforced materials. Also Read: Clerestory Roof
It is designed with care to consider soil bearing capacity, and it is protected against any overturning and sliding impact. It also effectively resists soil settlement beneath the soil.
Within the field of construction, the isolated footing is the foundation most frequently utilized to support single columns, when there is a significant space between the columns. It is utilized in situations where the geotechnical properties of the soil don't significantly change within the area of the foundation. It's also the best foundation. Also Read: Movable Glass Partition Walls
2. Continuous Footing
Continuous footing generally comprises more than 2 columns. Loads of each column can be transferred directly onto the footing slab or via a horizontal (longitudinal) beam that is in parallel with the footing. If a large load is spread across an extensive area the continuously spread footing can be employed. Also Read: Saw Tooth Roofs
Continuous footing is a good choice for earthquake-prone zones in areas where differential or uneven settlement can occur in the event of calamities. The design is to avoid any differential settlement in the structure. Also Read: Best Gutter Sealant
3. Strap Footing
Strap Footing consists comprising two columns footings that are strapped to each other by the concrete beam. It is used as a way to spread the weight of the extremely and eccentrically loaded columns footings adjacent footings, thereby ensuring stability.
The strap footing can be described as a junction part utilized with columns situated along a plotline or the property of a. It joins the column that is eccentrically loaded with the column which is within the foundation and transmits the force caused by an eccentricity to the column's interior foot. Also Read: Signs Your Foundation Is Failing
This results in the same pressure in footings that are loaded eccentrically and that bear a transferred load. In the same way, an eccentric load on a section of the footing that causes it to tilt towards one side is confined by the beam of the strap.
4. Wall Spread Footing
Wall Footing can also be referred to by the name of strip footing. These kinds of wall footing strips made of continuous concrete may be able to spread the burden of the structure over an extensive area of soil. This is a type of footing that could be constructed using plain cement concrete footing, or strengthened concrete footing. Also Read: Government Grant for Replacing Old Windows
Wall footings are built as a spread or pad and strip footings. They are used to support non-structural and structural walls by transferring and dispersing the load to the soil in a manner that the capacity to support the load of the soil doesn't exceed. Single Mother Home Loans
The construction of Wall footing is very adaptable it can be constructed with bricks, stone plain concrete, reinforced concrete in a streamlined method. Also Read:Catslide Roof Garage
The ideal conditions for the installation of footings for walls are when it is built in a place where it is able to transmit loads of low size and the soil layer is composed of large sands and gravels. These conditions are ideal for small-sized buildings. Therefore, you can find small structures that have wall footing. Also Read: Termite Shield
5. Inverted Arch Footing
In earlier times, multi-story buildings were typically constructed with Inverted Arch Foundations or Footings, in situations where the bearing capacity for the ground is very inadequate and the load on the building is centred over the walls. In this case, digging deep is a source of concern. Also Read: Free Home Repair Grants
These days, because of advances in concrete reinforced with cement The use of inverted Arch footing can be found in very few cases. However, it does have the advantage of not making foundations less deep on soft soils. Also Read: Roof Valley Installation
In inverted Arch Footing, the end piles of the footing must be specifically reinforced by buttresses to prevent the arch thrust that can tear the pier junction. This is among the biggest drawbacks to Inverted Arch Footing. Also Read: Roof eaves
Benefit of Spread Footing:
To provide greater stability The spread footing transfers and distributes the load of the structure to the greater surface of the soil below it.
When compared with other types of footings, spreading footing is a low chance of failing. Also Read: Quartz Pool Finish Cost
By limiting the damage to the structure, this type of footing can prolong the life of the structures. Also Read: Sandblasted concrete driveway
They are designed to help support the structure on a continuous basis.
They are simple to include in the structure of the building. Also Read: Fiberglass Water Tank
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