au projet
Client
DB InfraGo AG
Building owner
Deutsche Bahn AG
Engineering
GRASSL
In the south of Hamburg, the EÜ Süderelbe carries a total of eight electrified tracks across the EÜ Süderelbe on four superstructures. Together with the bridge over the Norderelbe further along the route, it is the only multi-track, electrified option for crossing the Elbe in northern Germany.The lines also provide the only economic access to the Hamburg port area and are the most important link in the north-south axis of international traffic to the Baltic Sea and Scandinavia.
With a daily traffic frequency of up to 1,000 trains, the Elbe bridges are a major bottleneck for rail traffic in northern Germany. The new replacement structure with a construction width of approx. 3 x 13.30 m plus 1 x 13.70 m and a total length of approx. 388 m with the largest single span of approx. 157 m will increase the capacity and sustainability of the infrastructure.
GRASSL is responsible for the planning, which was carried out using the BIM method, from the basic determination to the approval planning. The challenges include large spans, actions and verification procedures outside of the regulations, a complex subsoil and maintaining rail operations. With its slender construction, carefully designed details and high-quality materials, the bridge blends harmoniously into its surroundings and sets standards in terms of technology and design.
As part of the design, the superstructure was dimensioned, including detailed consideration of the bearing and junction points using shell models, the foundation was dimensioned and a rail stress calculation was carried out using the SOFiSTiK AG modules. A dynamic calculation of the entire superstructure was carried out using the newly installed and very easy-to-use FEABENCH module.
