Elegant spiral staircases in Ultra High Performance Concrete
The main entrance or atrium, forming the heart and gathering point for employees, welcomes with an elegant spiral staircase in UHPC from Hi-Con, extending over two floors. In the cafeteria area, also located in the atrium, there is similarly a one-floor spiral staircase in UHPC. These spiral staircases vertically connect the main area with work areas, playing a crucial role in linking and facilitating the dynamics between the different floors of the domicile.
The architect's wish and focus for the grand spiral staircase were to find a sleek and lightweight stair solution that would function optimally as the primary connection between the building's floors. At the same time, the solution should not obstruct the view through the large glass panels that span between the three main building lengths. This challenge was elegantly solved with a spiral staircase in UHPC.
"In our search for a staircase that offers both a sleek design and ensures a good flow between floors, we came across Hi-Con's reference to spiral staircases in high-performance concrete. By using this system, where the high-performance concrete steps are fastened to a central column, the need for the outer stringer found in traditional staircases is avoided, making the staircase easier to view." – Toke Valum, Principal Constructing Architect, ICT and BIM Manager, CEBRA
Both spiral staircases are made with a floor height of 4.0 meters and executed in light gray UHPC CRC i2® with a smooth surface. They have uniform rises and treads.
Staircase 1: Diameter Ø 8.0 m, core 0.6 m, 46 steps/rises of approx. 166 mm.
Staircase 2: Diameter Ø 8.0 m, core Ø 0.6 m, 23 steps/rise of approx. 166 mm.
