The Mannheimer Versicherung extension cantilevers across the lower part of the existing building. Its floor slabs consist of reinforced concrete ribbed slabs with spans of up to 7 m, and the slabs of the office areas are “cofferdam” with curved special formwork. Horizontal bracing was provided by concrete cores and walls.
Visible Concrete Surfaces with Extremely High Surface Quality
Because almost all concrete surfaces are visible, they were finished with an extremely high surface quality. The columns are constructed as composite columns with an adjustment profile and are characterised by their extreme slenderness.
The cantilevered part of the building (25 m free span, 3 storeys high) is supported by two steel trusses integrated into the facade area.
Werner Sobek was responsible for the project’s facade and structural engineering.
1999 − 2002
2002 − 2004
Services by Werner Sobek
Structural engineering (WP 1 − 8 acc. to § 64 HOAI)
Facade engineering (WP 1 − 4 acc. to UBF)
Mannheimer Holding AG, Mannheim/Germany
Roland Halbe, Stuttgart/Germany
AIA Chicago Distinguished Building Award 2007 – Honor Award