What are the types of foundations used for Tension Fabric Structures?
Tension fabric structures typically use different types of foundations to provide stability and support. The choice of foundation depends on factors such as the size of the structure, soil conditions, local building codes, and intended use. Here are some common types of foundations used for tension fabric structures:
- Concrete Footings: Concrete footings are often used for larger or permanent tension fabric structures. These footings are typically made of reinforced concrete and provide a solid base for supporting the structure.
- Concrete Piers: Concrete piers are used to support the columns or posts of tension fabric structures. They are installed at specific intervals and provide stability and load-bearing capacity.
- Helical Piles: Helical piles are steel piles with helical-shaped plates that are screwed into the ground. They are commonly used in areas with weak soil conditions or where minimal disturbance is desired. Helical piles offer good load-bearing capacity and can be used for temporary or permanent structures.
- Ground Anchors: Ground anchors are typically used for smaller tension fabric structures or temporary installations. They consist of steel rods or cables that are driven or buried into the ground at an angle. These anchors provide resistance against uplift forces and help secure the structure to the ground.
- Ballast Blocks: Ballast blocks are large, heavy weights placed on the base of the tension fabric structure to provide stability. These blocks are often made of concrete or steel and are commonly used for temporary or relocatable structures where digging or permanent foundations are not desired.
It’s important to consult with a structural engineer or an experienced professional who specializes in tension fabric structures to determine the most suitable foundation type based on the specific requirements of your project and the local building regulations.
Costs for each foundation type vary around the country, depending upon labor and material costs in each area. It is important to factor the cost of the foundation into your Tension Fabric Structure project. Fortress Fabric Structures can help you with this by providing the base reactions that the shelter will impose on the foundation, or by doing the actual design work. This requires a geotechnical soil report for the actual installation location.
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