Fiber reinforced polymer
Fiber reinforced polymer or FRP is manufactured by a process called PULTRUSION which uses glass strands that are pulled through a die and embedded in a polymer, making a strong, durable product that can be used in multiple structural applications.
Advantages of FRP
All these factors make FRP bridges an ideal solution for remote pedestrian crossings or in locations where low maintenance is desired.
⦁ Light weight – Compared to steel, FRP is approximately 1/4 of the weight, which makes it ideal for remote locations where all the bridge components could be carried to the construction site by hand.
⦁ Can be assembled by “unskilled” labor – All individual members are prefabricated and ready to assemble on site
⦁ Economical choice for remote locations –
⦁ Corrosion resistant – Material is extremely durable
⦁ Moderate span lengths achievable – up to 100-ft.
⦁ Steel is the most common and economical choice of a pedestrian bridge.
⦁ If made out of weathering steel, it can have a life span of 100-years (provided de-icing salts are not used).
⦁ Longer spans (up to 240 ft) and higher loads can be achieved.
FRP decking can be used on all types pedestrian or light vehicle bridge. Decking could be used for any number of uses including boardwalks, decks, mezzanines, stair treads, etc. Advantages of using FRP decking is that they are maintenance free, corrosion resistant and have a high skid resistance.