A natural ice-rink located in the heritage protected region of the Harz, the highest mountain range in Northern Germany, should be converted into a professional ice arena that offers multifunctional utilisation also in summer time. This serves the purpose of promoting tourism in this region.
The spatially curved saddle of the roof is the key element of the scheme. It provides weather protection without obstructing the spectacular view onto the Harz mountain range. The structure with its high points (at 15 m) opens up toward the stands and a nearby river.
Through its modest details the complex shape of the saddle surface gains clarity. The structure comprises a membrane supported by a cable net. Once the membrane and the cable net have been pre-stressed separately against the edge, they are linked at the nodes of the net. An edge beam made of double-curved sheet metal encloses the levels in the shape of a base ring. It is supported on the two lowest points of its crimped axis. The horizontal bearing forces are short-circuited by an underground, centrically pre-stressed concrete tie.
In this project the design process has been characterized by a particularly consistent material reduction on the edge beam. Beyond the conventional form-finding process under individual loading conditions, the designers strove to achieve a balance between all impacts on the structure without neglecting its aesthetics.
GRAFT, Berlin; WES LandschaftsArchitektur
German Design Award 2019, Special Mention
Zeman, Wien / Taiyo, München / U&W mit STRATIE Bau
- Our Scope of Work
conceptual design, construction design