The new connecting building linking the Gymnasium and the Haupt- and Realschule was constructed as a one- to two-story structure that adapts geometrically to the existing terrain. The individual building sections were designed as reinforced concrete skeleton structures cast in-situ.
The roofs of the sections serve as schoolyard areas and are therefore designed as pedestrian- and vehicle-accessible flat slabs with appropriate reinforcement.
The entire new building was constructed as a monolithic, jointless structure. The foundation consists partly of shallow individual and strip footings, and partly of a flexibly supported base slab.
In the area of the canteen skylights, wide-span reinforced concrete perimeter beams were installed to support the floor slabs and glazed skylights. All reinforced concrete slabs are designed as flat slabs, supported on discrete points by reinforced concrete columns and walls.
For the renovation and refurbishment of the existing buildings, load-bearing walls were replaced by steel frame structures to allow new spatial layouts, with some frames extending down to the foundation level.
The excavation pit could be largely freely battered. Alongside the Hauptschule, however, a retaining structure was constructed to safely support the foundation loads from adjacent school buildings and accommodate the terrain step.
