What is decking on a bridge?
A deck is the surface of a bridge. A structural element of its superstructure, it may be constructed of concrete, steel, open grating, or wood. Sometimes the deck is covered by a railroad bed and track, asphalt concrete, or other form of pavement for ease of vehicle crossing.
What is a steel bridge deck?
Steel Bridge Decks These are lightweight sections of steel that increase bridge support for large weights traveling across the bridge. The steel grids are filled or partially filled with concrete or asphalt, or they can be left unfilled.
What is the main problem of bridge deck?
Bridge decks are vulnerable, subject to attack by water and chloride that can lead to deterioration and issues with longevity and durability of the bridge decks. The installation of an effective waterproofing membrane is therefore an essential part of bridge deck system in addition to the drainage system.
What are the disadvantages of steel?
Disadvantages of Structural Steel Structures
- Steel is an alloy of iron. This makes it susceptible to corrosion.
- There are extensive fireproofing costs involved, as steel is not fireproof. In high temperatures, steel loses its properties.
- Buckling is an issue with steel structures.
What is bridge deck made of?
The deck panels are rollformed from high strength, zinc coated steel, conform to AS1397 Class G450, have a net cover width of 381mm and are 90mm high. Panels are available in a large range of thicknesses, lengths up to 12 metres and the standard zinc coating is Z275.
How heavy is a bridge deck?
The weight of deckhouse using aluminium alloy is 23.457 tonnes whereas the weight of deckhouse using steel is 67.02 tonnes. …
How thick is bridge steel?
Steel thickness may be either 0.105, 0.135 or 0.179 inches. Trapezoidal corrugation 9” x 3” planks can be installed the full width of the bridge being re-decked.
What are defects of the bridges?
Common Bridge Defects Concrete bridge structures are susceptible to corrosion, carbonation, creep, shrinkage, water penetration, and alkali-silica reactions. One of the most common causes of damage to steel-reinforced concrete bridges is rebar corrosion.
What is bridge decking made of?
Bridge decking designed to support vehicular traffic and heavy loads is manufactured by cold-press riveting truss shaped recticuline bars to rectangular bearing bars. Bridge decking is created by manufacturing a grate with reticulated bars between two bearing bars.
What are redidek™ prefabricated steel bridge deck panels?
A crucial element of our prefabricated modular steel bridges is our RediDek ™ prefabricated steel bridge deck panels. These panels work in conjunction with TrueNorth Steel’s SuperSill™ abutment system , both of which are an integral part of TrueNorth Steel’s Accelerated Bridge Construction (ABC) process .
What is bridge decking grating?
Exceptionally durable heavy duty grating with superior stiffness and lateral stability. Bridge decking is manufactured by cold-press riveting truss shaped reticuline bars to parallel rectangular bearing bars. Often the preferred heavy duty grating for concentrated or stress applications subject to impact and repetitive loads.
What is the best material for a pedestrian bridge deck?
A popular pedestrian bridge decking choice is aluminum, which has a high strength-to-weight ratio and is corrosion resistant. With minimal maintenance, our aluminum bridge decking will never rust.