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Rheinwelle – a modern sports and leisure swimming bath | Pneu | Germany


General information
Location address Bingen
Location country Germany
Name of the client/building owner Zweckverband Regionalbad Bingen - Ingelheim
Function of building Sport
Type of application of the membrane covering
Degree of enclosure Fully enclosed structure
Climatic zone Temperate - cold winters and mild summers
Number of layers mono-layer
Short description of the project The so-called "Rheinwelle" owes its name not least to the shape of its building: it undulates through the Rhine-Hessian orchards. Seen in plan view, it resembles the course of a river. And it was the countryside by the river Rhine that inspired the planners of the architectural office of Dr. Krieger when they designed the new building.

The three different swimming bath areas (sports, adventure and sauna area) were roofed by a transparent roof made of ETFE cushions which open the view towards the Rhine-Hessian skies and provide for optimum light conditions inside the swimming bath premises.

Since the roof should also re-create the requested wave form, it was a particular challenge for the art of engineering. A steel substructure with honeycomb girders forms the base structure for the five ETFE-cushions which span the swimming bath over a length of approximately 110m in the longitudinal axis.

Each of the air-supported cushions is made of three layers of ETFE film which are clamped by aluminium clamping strips at the edges. The big cushions, with sizes ranging from 5m x 16m to 13m x 30m, are segmented by parallel arches and suction cables stretched over them. Due to the cut, the top film warps upward in a big arch between the suction cables which leads to an attractive visual effect and at the same time provides for a continuous water and snow discharge.
Misc. project details
Duration of use
Temporary or permanent structure Permanent
Material of the cover
Cable-net/Textile/Hybrid/Foil Foil
Material Fabric/Foil ETFE-foil
Main dimensions and form
Covered surface (m2) 1.728
Total length (m) 110
Total width (m) 30
Form of a single element Synclastic
Involved companies
Architects Dr. Krieger Architekten + Ingenieure GmbH & Co. KG
Engineers form TL ingenieure für tragwerk und leichtbau gmbh
Contractors Ceno-Tec
Editor Marijke Mollaert
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