Profiles and panels
Long span floorsMore
Integrated floor systemsMore
Related news and technical articles
ArcelorMittal Construction introduces Cofraplus® 80: a brand-new lightweight alternative to prefabricated concrete floor slabs1 July 2021
Using an 80 mm high trapezoidal steel profile alongside a lower volume of poured concrete, Cofraplus® 80 outperforms a traditional precast slab in a greener and more environmentally conscious package.Product News
Structures, facades, and fire safety in multi-storey car parks
The use of high strength steel for columns permits a reduction of their size and cladding has to ensure optimum ventilation, an essential fact when calculating fire safety. Natural light is a key element for the users' comfort and perception of space but also crucial for the building's energy consumption. A car park is subjected to many functional requirements, but at the same time architectural aesthetics are becoming more and more important.Article
Multi-storey car parks made of steel
The open front system guarantees abundant natural ventilation, which is fundamental to safety in the event of fire. Records in Europe show that with the advanced structural calculation methods set forth by Eurocodes, it is possible to guarantee structural safety in the event of a fire, thus eliminating or reducing the need for expensive fire safety systems for metal structures.Article
Floor systems are made up of galvanised decks or galvanised pre-coated decks. These profiles, carefully combined with materials such as concrete, thermal and acoustic insulation, plaster, and wood, form advanced construction systems intended for all types of structures where their effectiveness and reliability are proven.
ArcelorMittal’s family of flooring solutions includes:
Cofraplus® floor decks: Trapezoidal steel sheets with open ribs and specific embossment to ensure composite action with concrete. Thanks to their geometry, they are stackable for easy storage. Cofraplus® is the best solution for most projects involving spans up to 4.5 m.
Cofrastra® profiles: Thanks to their undercut geometry, an especially high adhesion between the steel and the concrete can be achieved. Technical equipment can be installed quickly and easily beneath the slab thanks to an adapted fixing system.
Cofradal® integrated floor system: Made of steel, thermal insulation, reinforcement, and concrete. Two to three times lighter than conventional concrete floors, it provides a high load capacity and bridges long spans economically without additional support.
Cofraplus® 220 additive steel deck: Easy installation at high speed and outstanding resistance at reduced weight are the main features of this new system, which is particularly suited to all column-beam structure projects without intermediary joists.
Floor systems in steel
ArcelorMittal's range of floor construction systems is the most comprehensive on the market and offers the right solution for any kind of project and technical requirements. It consists of both well-established systems and innovative solutions which reflect recent developments in regulation, design, and installation.
The floor systems serve as a self-supporting formwork, and they resist construction loads and concrete weight. They are simple and quick to lay and easy to handle. Easy cutting and quick interlocking of the ribs contributes to site productivity. Thanks to their specific design, which optimises composite action with concrete, ArcelorMittal’s floor profiles contribute to weight reduction of structures.
After installation, the floor decks create a continuous working platform that allows site workers to walk on them safely once they are fixed to the supports.
The web-based design tool Cofra5 is free of charge and offers assistance in the calculation of ArcelorMittal’s composite flooring solutions.