ACB® beams are fabricated based on the exclusive use of hot rolled sections.
A double cut-out is made in the web by flame cutting. The two obtained T-sections are shifted and rewelded leading to an increase in height.
The obtained structural product has an increased ratio of moment of inertia / weight. For a given section, the diameter and the spacing of openings are variable resulting in an extremely adjustable beam geometry and perfect suitability to project requirements.
Objective: Optimisation of the height/weight ratio
Applications: roofing, gangways/footbridges, wide-span purlins
Common steel grades: S235, S275, S355
Objective: Optimisation of the load/weight ratio
Applications: floors, car parks, offshore structures
Common steel grades: S355, S460, HISTAR® 460
IPE300 – IPE750, HE240 – HE1000, HL920 – HL1100, HD260 – HD400, UB305 – UB1016, UC305 – UC356, W310 – W1100
Light, aesthetic & functional
The lightweight appearance of ACB® cellular beams combined with their high strength never ceases to inspire architects in new structural forms. The optimised height/weight or load/weight ratio provides effective answers to the demands of project owners.
This solution allows for large uninterrupted spaces with spans of up to 18 metres and technical installations like pipes and ducts that can pass through the beams' circular web openings.
Related news & technical articles
Fire resistance in steel structures: theoretical fundamentals and real case scenario of the natural fire safety concept
In this technical article, Gian Carlo Giuliani, structural engineer at Redesco, presents the theoretical fundamentals of fire resistance calculations for structures through the presentation of a case study: the steel structure of a commercial centre in Cyprus.Article