Structural supports with FRP include purlins, corrosion‑resistant stakes, and framing supports. They carry loads in environments where metal supports degrade. This page outlines how to select the appropriate support for your project.
Product Family Overview
FRP structural supports are made from pultruded profiles or molded shapes. Purlins support roof panels, stakes are used for ground anchoring, and framing supports connect other structural elements. FRP has different stiffness than steel, so deflection often controls design.
Selection Considerations
- Allowable deflection – support spacing must be calculated to limit deflection.
- Framing span – affects required profile size and type.
- Environmental exposure – determines resin selection.
- Connection method – bolted or bonded, which influences detailing.
Frequently Asked Questions
Are FRP purlins as stiff as steel?
FRP purlins generally have lower modulus of elasticity than steel, so deflection may control spacing. They can be used for similar spans but often require closer support spacing or larger sections.
Can FRP supports be used in soil contact?
Yes, FRP is resistant to soil corrosion. However, soil conditions, installation methods, and long‑term creep behavior must be evaluated for each application.
