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General Information

Completion: 15 December 2017
Status: in use

Project Type

Structure: Cable net
Membrane structure
Function / usage: Ice rink / ice arena
Material: Steel structure

Awards and Distinctions

2019 entry  


Location: , , ,
Coordinates: 51° 45' 45.88" N    10° 39' 44.36" E
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Technical Information


roof width 43 m
height max. 15 m
length 73 m
surface ca. 2 700 m²
tension ties height 5.00 m
length 90 m
number 2


membrane PTFE-coated glass-fiber fabric
building structure reinforced concrete
tension ties reinforced concrete
compression ring steel


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 prestressed 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. Reactive horizontal bearing forces are short-circuited by an underground, centrically pre-stressed concrete tie.

For this project, the design process has been characterized by a particularly consistent material reduction in the edge beam. Beyond the conventional form-finding process under individual loading conditions, the designers strove toward striking a balance between all impacts on the structure without neglecting its aesthetics.

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