Weathered Steel Bridge

The first weathering steel bridge in the uk was a footbridge at york university in 1967 and the material was used for many bridges around the uk in the following 30 years or so.

Weathered steel bridge. Uncoated weathering grade steels have been available to the bridge engineering profession for many years. Steel has long played a key role in american construction efforts. However the use of weathering steel on bridges has increased significantly since 2001 when a former restriction on the use of the material over highways with less than 7 5m headroom was removed. Weathering steel often referred to by the genericized trademark cor ten steel.

Steel is now a popular choice for most large scale bridges due to it s high compressive and tensile strength. The ion exchanging functions of the rust layer formed on the 3 ni weathering steel play an essential role on giving its high weathering performance. To provide most of the cost benefits of weathering steel while still satisfying aesthetic requirements. Truenorth steel offers long lasting practical steel pedestrian trail pt bridges for numerous applications.

Steel holds the registered trademark on the name cor ten. It is now the material. Not only is steel lighter in weight than many other building materials on the market but it also earns points for durability affordability and environmental friendliness. Fabricated from low maintenance weathering steel materials and long lasting deck materials these beautiful structures will provide years of.

In the presence of moisture and air all low alloy steels rust the rate of which depends on the access of oxygen moisture and atmospheric contaminants to the metal surface. Weathering steel often referred to by the genericised trademark cor ten steel and sometimes written without the hyphen as corten steel is a group of steel alloys which were developed to eliminate the need for painting and form a stable rust like appearance after several years exposure to weather. Steel is also very ductile and it deforms a considerable amount before it bends providing a clear. Still bridge builders may struggle with whether to use more traditional weathering steel or increasingly popular hot dip galvanized steel.

To provide engineers with suggested guidelines for proper application of uncoated unpainted weathering grade steels in highway structures and recommendations for maintenance to ensure continued successful performance of the steel. In some instances aesthetic needs require a painted bridge. Our steel bridges are pre engineered and premanufactured. Hence a well detailed weathering steel bridge in an appropriate environment provides a very low maintenance economic solution.

One recommended specification to achieve this is federal color number 30045. Color of the weathered steel. This rust layer not only protects architectural steel products against the elements but also delivers a unique finish that. The first bridges were built with stone masonry and since then a range of materials have been used to construct bridges around the world including iron concrete and steel.

Cor ten is high strength low alloy weldable structural steel with exceptional weathering resistance. 3 ni weathering steel plate for uncoated bridges at high airborne salt environment akira usami 1 hiroshi kihira 1 takashi kusunoki 2 abstract 3 ni weathering steel for uncoated bridges in high air born salt environments was developed.