Tram line stop at Berlin Central Station with lightweight concrete roof structure

Opening of the tram line stop at Berlin Central Station

After a hiatus of almost half a century, there will shortly once again be a tramline running along Invalidenstraße in Berlin, which links the western and eastern parts of the city. One of the most striking locations along this stretch is the stop at Berlin Central Station, which is covered by two lightweight concrete shell structures approximately 58 m long and 6 m wide.

After a hiatus of almost half a century, there will shortly once again be a tramline running along Invalidenstraße in Berlin, which links the western and eastern parts of the city. One of the most striking locations along this stretch is the stop at Berlin Central Station, which is covered by two lightweight concrete shell structures approximately 58 m long and 6 m wide.

These wing-shaped lightweight concrete shells, which appear to be floating, were implemented by being suspended on two ferroconcrete cores and with a rigid connection using a few slender steel supports.

But it’s not just the visible part of this construction that has distinctive technical features: the loads of the two hybrid load-bearing structures are absorbed across the tunnel structures of a new underground and suburban railway line by partially overhanging support structures. Two trough-like ferroconcrete load-bearing elements were subsequently integrated into the existing underground railway tunnel for the stairways to the tram platforms.

Verification of the structural safety of the tram stop construction was carried out by our test engineer, Ralf Gastmeyer Dr.-Ing.