Stuttgart Main Station (S21)

Ingenhoven Architects, Düsseldorf/Germany

Planning time
2010 – 2018

Construction time
2011 – 2021

Services rendered by Werner Sobek
Structural engineering of the station
(phases 4 – 6, 7 and 8 according to German HOAI / Design development through site supervision)
Facade engineering (construction design)

DB Projektbau GmbH, Stuttgart/Germany

Ingenhoven Architects, Düsseldorf/Germany
Werner Sobek, Stuttgart/Germany

The project „Stuttgart 21“ includes various building developments in the city of Stuttgart. This includes new construction of an underground train station with 8 tracks as well as a re-furbishment of the subway station „Staatsgalerie“, the partial demolition of the amendments to the old station, new design of plazas and accesses around the station as well as the re-development of the historical Bonatz Building. The new underground station, which is developed in the course of the project „Stuttgart 21“, consists of a hall, approx. 420 m in length and 80 m in width. The roof structure of the hall consists of a shell structure which is supported by 3D freeform concrete shell columns. These create a horseshoe-shaped support of the flat roof parts. The freeform structural shell columns are opened upwards and are covered by filigree steel-glass structures.