Open grid decks can be described as small-scale steel framing systems used as a bridge deck. They are made up of transverse sections to distribute the load across main rail members providing strength to the decking system.
Open grid deck panels are used as an alternative to cast-in-place concrete decks.
The connection between grid panels is made up of bolted or welded connections. Due to the possibility of fatigue issues, bolted connections are preferred. Bolted or weld connections can be used to connect the deck panels to the steel frame. Grouted shear connector pockets are another option for this connection detail. Generally, when steel guard rails are to be mounted on the deck panels, bolted connections are used.