A case study for FRP compared to aluminum is a recent design for a cantilever sidewalk to be attached to a vehicle bridge. The 5’ wide sidewalk is supported on floor beams at 7’ spacing. The aluminum design consisted of 3/8’ plate on 3.5” angles with a 1/8” pad. All these pieces were to be bolted together. The FRP solution was a one piece slab deck at the same total thickness of 4”. Pricing for the materials were similar, but the installation of the FRP is much faster and lower cost.
See the best in FRP decking for bridges and sidewalks.