Project details
Spiral staircase
The five flights and the conical design of the spiral stairs lead to its imposing character. The flight width from the bottom to the top of the stairs varies from 1,475 mm to 2,500 mm and the amount of steel used for the outer and inner stair stringers rises in accordance with the increasing height.
Stainless steel handrail of the spiral staircase
The handrail is made of a stainless steel tube. It was welded on the outer and inner balustrade stringer of the spiral stairs. A notch at the bottom of the stainless steel tube allows for the LED lighting. The handrails were all finished in an evenly ascending and rounded design.
Balustrade stringers of the spiral stair
The MetallArt experts realized the spiral stairs with steel treads and landings welded in between the stair stringers. The stringers themselves were fastened at the top and the bottom to the load-bearing concrete stairs in a force-closed manner.
Soffit cladding of the spiral staircase
It is however not only the shape that makes the stairs an eyecatcher. The structurally supporting soffit lining made of steel has become a crucial element of interior design. Even for this staircase, placed in the middle of the room, the underside cladding is the key element for its sculptural appearance.
All-glass balustrades
Transparent all-glass railings at all three levels and the illumination along the outer handrails produce a striking interplay of materials and light.
Architects
COOP HIMMELB(L)AU Wolf D. Prix & Partner ZT GmbH, Vienna