Construction of structural steel bridges

Some modern structural steel bridges benefit from the latest advances in automated manufacturing, and construction techniques are able to offer economical solutions for the requirements of safety, fast construction, aesthetics, minimal maintenance and flexibility in future use.

For structural use in the construction of bridges, these steel products are cut to the required dimensions and welded together. In the structure, the material is subject to traction and compression forces.

Choosing an appropriate grade of steel for the construction of a bridge requires a correct assessment of product standards and an understanding of several aspects, including:

– the properties of the material;

– design requirements;

– availability and cost of steel;

– product specifications.

Structural steel bridges – description and priorities

Steel is used on a large scale throughout the world for the construction of bridges, from very large ones to very small ones. This is a versatile material that offers efficient and durable solutions. Steel has long been recognized as the economical option for a number of bridges. Steel bridges play an essential role in a country’s infrastructure.

Structural steel is a high-quality material, which is available worldwide in certified grades, in the form of products of various shapes and sizes. The quality guarantee must give confidence to the customers and the engineers who use the steel in the construction of bridges.

It is available in two product forms:

– „flat products” (steel sheet and flat strips)

– „long products” (steel profiles, angle, square pipe and rectangular pipe).

S355 steel is predominantly used in highway bridges, because it offers an optimal balance between rigidity and resistance. And S275 steel is often used on railway bridges, where the design requires rigidity rather than strength.

Other mechanical properties of particular importance to bridge designers include ductility, toughness, weldability and corrosion resistance.

Steel is also appreciated in the framework of sustainability measures and offers a wide range of benefits that address:

• economic priorities:

– efficient use of resources;

– durability;

– adaptability.

• environmental priorities:

– recycling and reuse;

– minimum consumption of CO2 and energy;

– minimal losses;

– light constructions.

• social priorities:

– sustainable communities;

– health and safety;

– minimal impact;

– aesthetically pleasing bridges.

H Metal delivers metallurgical products of the best quality. To receive a precise offer, please contact us at office@h-metal.ro.

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