Laufbreitenwechsel bei Skulpturtreppe

Sculptural stairs featuring assymetric soffit lining

Sculptural stairs in Innsbruck

On a former horse stud, these sculpture stairs stand up as decorative design element with changing radii and alternating flight widths.


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Project description

Unique sculptural stairs

Stairs are not always just purely functional connections between different levels. They can also be outstandingly convincing as a central, aesthetic highlight, as this example impressively demonstrates. Together with an Austrian architectural office, Baukooperative GmbH, we gladly met the private client’s request and realised sculptural stairs never before built in this design. In particular, the asymmetrical steel soffit and the parapet-high stringers on both sides of the three-flight sculptural stairs create the impressive spatial effect. Another refined detail are the constantly changing radii and flight widths, which are executed harmoniously and without any kinks in the steel structure.

Self-supporting sculptural stairs

The structural challenge was the consideration of the static conditions of the historic building, which was formerly used as a horse stud farm and has now been adapted into residential accommodation. Thanks to careful planning, our stair construction specialists mastered this challenge competently and designed the sculptural stairs as a self-supporting element with the least possible forces and torques acting on the existing building structure.

Innsbruck Skulpturtreppe von MetallArt
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Project details

Sculptural stairs as design feature

  • Stairs with balustrade stringers as fall protection
  • Folded steel tread steps welded in between the stringers
  • 2 intermediate landings featuring the dimensions of approx. 4 x step surface each
  • 1 stair head landing featuring the dimensions of approx. 6 x step surface
  • Precisely shaped steel sheets according to the stairs run, welded flush with the surface between the stringers on the underside
  • Up to 4 different radii on 360 degrees
  • Effective flight width between approx. 1,300 – 2,000 mm

Handrail design of the sculptural stairs

  • Consisting of a horizontally welded flat-steel element on top of the balustrade stringers and a vertical flat steel welded on to it at the bottom
  • This results in a so-called light cove for the LED lighting (arranged on-site) which creates a pleasant atmosphere and serves also as handrail
  • Handrail in evenly rounded design

Ceiling frame

  • Combination of a balustrade in analogous design to the stair stringers and a ceiling frame for the partial cladding of the slab and the connection of the floor structure respectively
  • With welded-on flat-steel brackets for fixation on the raw floor
  • Balustrade thickness: approx. 10 – 15 mm, analogously to the stringers of the sculptural stairs