Langenscheidt Bridge
The Langenscheidtbrücke is a road bridge in the Schöneberg district of Berlin .
description
The steel truss bridge leads the Monumenten- / Langenscheidtstraße over the Wannseebahn railway line . It forms a western exit of the Red Island, which is surrounded by railway tracks .
The bridge was built in 1898/1899 with two 6.10 meter high and 99 meter long main longitudinal girders as a riveted strut framework . Each main girder rested on the two abutments at the end of the bridge and on two pendulum supports. The special features of this striking bridge consisted of the 3.29 meter incline of the carriageway, which rested on reinforced concrete caps between the main girders, and the portal arch on the western side of the bridge.
Due to the effects of the Second World War and corrosion damage due to the lack of structural maintenance (due to the motorway planning), the original structure was severely impaired in its substance in the 1980s. The resilience of the material ( Thomas steel , which tends to become brittle during welding repairs ) was also questioned. The bridge was originally designed for a gross vehicle weight of 24 tons; this had to be reduced to 9 tons in 1974 and finally to 2.8 tons in 1981.
Initially, it was planned to build a simple box bridge as a replacement for the old Langenscheidt bridge as part of the extension of the federal motorway 103 (western bypass) planned parallel to the Wannsee Railway. The further construction of the western bypass was delayed and finally stopped completely due to public protests. At the same time, the request arose to repair the Langenscheidt Bridge , which is worthy of monument protection . However, the damage to the old bridge was judged to be so severe that a new building could not be avoided.
The old bridge was demolished in 1987 and replaced in 1987/1989 by the engineering company Gregull + Spang with a new building, which was now again planned as a steel structure and should retain the appearance of the old bridge. The two lattice girders are now slightly shorter at 86 meters in order to be able to design the confluence area of the adjacent streets more cheaply and were manufactured in a welded design. From a structural engineering perspective , it is again a continuous beam over three fields, each of which rests on the abutments and two pendulum supports . The total steel weight of the bridge is 462 tons .
The road bridge has been named after Gustav Langenscheidt , the founder of the neighboring Langenscheidt publishing house , since 1931. Before that, it was called the Siegfried Bridge .
On the corner of Crellestrasse is the steel sculpture Bahn-Damm by the sculptor Georg Seibert , a master student of Hans Uhlmann .
The Langenscheidt Bridge in the film
In the 1987 film Der Himmel über Berlin by Wim Wenders , a scene takes place on the "old" Langenscheidt Bridge.
Web links
Individual evidence
- ↑ Der Tagesspiegel : Articles of March 21, 1981, March 25, 1981, December 24, 1982, January 11, 1983, March 3, 1983 and May 26, 1985
- ^ Gregull + Spang Ingenieurgesellschaft für Stahlbau mbH, references road bridges
- ↑ The excerpt from the film can be seen on YouTube .
Coordinates: 52 ° 29 ′ 19 ″ N , 13 ° 21 ′ 48 ″ E