Concrete Filled Steel Grid Bridge Deck

Composite steel grid bridge deck aashto lrfd 9 8 2 4 is comprised of an unfilled steel grid typically 7 5 cm to 13 cm 3 to 5 2 deep with a 9 cm to 13 cm reinforced concrete slab on top of it.

Concrete filled steel grid bridge deck.

The concrete filled steel grid option was de termined to be best suited since it of fered a long service history in. The most common cause of bridge deck distress is the corrosion of the reinforcing steel that results from the intrusion of chlorides into the concrete after repeated deicer applications. Foster s open grid was developed to meet increasing performance and reliability. Steel grid bridge and aluminum decking bridge forms and railings.

These decks are very common and are easy to install. Open grid steel decking is a category of deck constructions that can be characterized by whether the grid incorporates poured concrete as a protective encasement or not. It is further specified as filled partially filled or unfilled. Exodermic decks or unfilled steel grid decks composite with a reinforced concrete slab are the most structurally efficient grid deck systems available and offer increased span capacities and a slight weight advantage over half filled grid decks.

All products can be used in alternative applications. Prefabricated deck systems are some of the most commonly used applications of modular bridge technology. Half filled grid decks or welded steel grid decks partially filled with concrete are lighter in. The resources provided below will describe and illustrate different methods of prefabricated deck systems for short span modular steel bridges.

Common configurations shown in the design table can span up to about 15 feet but other wt main bar sizes can be used to achieve longer spans. Half filled grid decks. The concrete portion of an exodermic. Concrete filled steel grid bridge decks have the answer.

Har vey taylor bridge deck weight was minimized through the use of light weight concrete fill within the grid deck in order to attain the maximum feasible live load rating capacity. Steel grid bridge decking open grid steel bridge decking. Steel grid deck systems for bridges and other companies with an interest in this market. A por tion of the grid extends up into the reinforced concrete slab making the two composite.

Fully filled grid decks. Another common type of steel deck is open grid steel bridge flooring. For a list of bridge deck suppliers and manufacturers please see find a supplier on the sssba. Bridge uses corrugated steel bridge planks for beam or truss bridges and these can later be filled with asphalt or concrete for traffic.

Open grid steel deck.