It serves as a necessity to build any building since it spreads its weight uniformly on the ground. Foundations can be classified into two types: shallow and deep. Combination footing is suitable for medium Debbie burden and is preferably used in residential buildings and some commercial buildings with shallow foundations like strip footing.
In this guide, readers will learn about strip footing, its types, the benefits of using strip footing in constructions and things that one should consider before using it. Please read the article below for more information regarding strip footing foundation types and applications.
What is Strip Footing?
Strip footing, also known as strip foundation or wall footing is another kind of shallow foundations whereby a single strip of concrete prolongs in the direction of the wall or in a row of column. Strip footings contain reinforcement in bar steel and are commonly used in construction on stable ground, particularly to support Low to medium rise buildings. Due to the good bearing pressure distribution, the thickness and width of strip footings can be chosen according to the type of soil and bearing capacity required, so it is versatile.
When is Strip Footing Used?
Strip footing foundations are used predominantly for load bearing walls and structures where the bearing capacity is high. They assist in supporting walls through sharing of load along a continuous and narrow strip that enhances biomechanical ground. They are also suitable for a large number of well-spaced columns and afford a more economical and compact solution than individual footings.
For soils with lower bearing capacity, a wider or reinforced strip footing may be required. Consulting a structural engineer to assess the soil and design requirements is essential for optimal support.
Types of Strip Footing
Strip footings come in two primary types:
- Deep Strip Footing: Ideal for stable soils, these foundations use reinforced concrete strips with minimum depth and width specifications to support the walls.
- Wide Strip Footing: Suitable for soils with lower bearing capacity, these footings offer a broader base to distribute load effectively.
Suitability of Strip Footing
The suitability of strip footings is influenced by several factors, including:
- Load Distribution: Strip footings are ideal for walls or columns that require even load support.
- Continuous Support: Providing continuous support along load-bearing walls reduces the risk of settlement.
- Adaptability to Soil: Engineers can customize strip footing design based on soil characteristics, ensuring stability.
- Space Efficiency: Strip footings maximize space and allow architects to arrange columns and walls creatively.
Advantages of Strip Footing
- Load Distribution: Distributes weight evenly to prevent soil settlement.
- Cost-Effectiveness: More economical than individual footings for closely spaced columns.
- Versatility: Adaptable to various soil types and load requirements.
- Simplicity: Streamlined construction saves time and costs.
- Structural Stability: Offers dependable support for load-bearing walls.
- Design Flexibility: Allows for options like deep or wide footings to suit project needs.
Disadvantages of Strip Footing
- Load-Bearing Limitations: Not ideal for large structures with heavy loads.
- Modification Challenges: Altering structures with strip footings can be complex.
- Height Restrictions: Less effective for high-rise buildings.
- Site-Specific Constraints: It can therefore become an issue when the site is suitable for other reasons such as soil changes or environmental factors.
Conclusion
Strip footings are among the most popular types of footings today due to their versatility, low costs, and ability to provide excellent support for building structures. They offer continuous support, making them ideal for low- to medium-rise buildings when soil bearing capacity and load distribution are thoroughly evaluated. Although not suited for high-rise structures, strip footings are a solid foundation choice under the right conditions, especially for residential and small commercial constructions. Walls and Dreams emphasizes the importance of choosing the right footing type for your project to ensure stability and longevity.
