Dorotheen Quarter

At a prominent location in Stuttgart's city centre between the market hall, Karlsplatz Breuninger department store and orphanage, a new quarter development, the Dorotheenquartier, was realized with its three striking buildings. The quarter accommodates office space, apartments and ground-floor retail. The above-ground structures were underpinned by a 3-storey underground car park. With their passageways, the buildings trace historical urban structures and contribute significantly to the revitalization of the surrounding urban area. The primary load-bearing structure is based on a 12-storey reinforced concrete skeleton construction with stiffening cores and a rigid basement box.

In some areas, the 30 cm thick flat slabs with spans of up to 14 m were prestressed with monostrands without composite. The construction site is located in the core protection zone of the Cannstatt mineral water. The construction of the approximately 10 m deep excavation pit with a surrounding bored pile wall and an HDI sealing base was correspondingly complex. In order to connect the two underground parking garage sections on the 3rd basement level, the brick-built Nesenbach collector above had to be replaced by a two-span box girder bridge.