Protection Roof for Roman Bath Ruins in Badenweiler
Badenweiler, Germany, 2001
The requirement was a barely visible structure to protect the ruins of the antique Roman bath from exposure to weather. Glazed shell structures provide an optimum in transparency. Like in membranes the loads are transferred in the surface areas instead of bending the profiles. Therefore, prestressed diagonal cables (Ø 10 mm) stiffened the glazed rectangular meshes in the surface area, thus creating a shell clearly spanning approximately 68 x 40 m in plan with steel sections measuring only 60 x 60 mm. However, for transverse stiffening prestressed cables consisting of T-shaped compression chords and almost invisible chord- and diagonal cables (Ø 10 respectively 20 mm) have to be added to the barrel vault. 1.725 glass panes, 10 mm thick and measuring approximately 1.20 x 1.20 m, held by stainless steel plates at the corners create the transparent and durable roof -skin. These stainless steel plates with a matte finish were cast in ceramic moulds.
Location
Badenweiler, Germany
Awards
BDA - Auszeichnung Guter Bauten 2002
Client
Staatl. Vermögens- und Hochbauamt Freiburg
Contractor
Fa. Gartner, Gundelfingen; Batigroup Bau GmbH
Our Scope of Work
conceptual design, construction design, site supervision
Length67 m
Roof area3,150 m² (incl. facade)
Height9 m
Glass for rooflaminated safety glass of 2 x 5 mm partially pre-stressed glass
Span40 m (35 m)
Plan area2,500 m²
Open coil cablesø 10/16/22 mm galfan-coated
Glass for facadelaminated safety glass of 2 x 8 mm partially pre-stressed glass