Kurt Schumacher Bridge (Mannheim)
Coordinates: 49 ° 29 ′ 23 " N , 8 ° 26 ′ 44" E
 Kurt Schumacher Bridge
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| use | 4-lane road bridge; Tram, pedestrian and bike paths | |
| Convicted | Bundesstrasse 44 | |
| Crossing of | Rhine | |
| place | Mannheim-Jungbusch , Ludwigshafen am Rhein | |
| construction | Cable-stayed bridge | |
| overall length | 1500 m | |
| Longest span | 287.04 m | |
| building-costs | 130 million DM | |
| start of building | 1969 | |
| completion | 1972 | |
| opening | June 28, 1972 | |
| planner | Fritz Leonhardt (draft) | |
| location | ||
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The Kurt Schumacher Bridge is the youngest Rhine crossing between Mannheim and Ludwigshafen . It was the first cable-stayed bridge in the world to be built with parallel wire bundles.
At Rhine kilometer 425,680 it transfers the federal highway 44 and a tram route from Mannheim's city center / Jungbusch over the Rhine to Ludwigshafen. The border between the federal states of Baden-Württemberg and Rhineland-Palatinate runs in the middle of the river.
description
The Kurt Schumacher Bridge , including its driveways and distribution structures, is around 1.5 kilometers long. A double-track tram line runs in the middle of the bridge, next to it two lanes in each direction and on the outside on both sides a footpath and bike path. At both ends, the bridge is widened considerably with additional access and exit lanes. About the middle of the commercial port there are connection segments as swiveling on the edge of the road, where access and exit points directly to the Mannheim port area have been prepared but not implemented.
The structure, uniformly known as the Kurt Schumacher Bridge , consists of several partial bridges (from Mannheim in the east to Ludwigshafen in the west):
- West cross and connecting canal bridge (length approx. 296 meters)
- Mühlauhafenbrücke (length approx. 287 meters)
- Electricity bridge (length 433.45 meters)
These three bridges, separated from each other only by transition structures, have a total length of 720 m. On the Ludwigshafen side, the bridge will be continued as " Hochstraße Nord" to the main station and then to the A 650 .
The most striking part is the river bridge, which spans the Rhine as an asymmetrical cable-stayed bridge.
It has a single, A-shaped pylon on the right bank of the Rhine, which towers over the bridge deck by 71.5 m. It is so wide that the clearance profile of the two trams has enough space between its stems. The stems stand on the bank piers and are mounted in such a way that tilting movements are possible in the longitudinal direction of the bridges, while there is a clamping effect in the transverse direction. The steel handles each have two chambers with a rectangular hollow cross-section. There is an elevator in one stem and an emergency ladder with platforms in the other.
For the first time in the German construction of large bridges, the stay cables were made from several bundles of parallel wire cables . They are anchored in the pylon head and on both sides of the tram tracks in the girder. All ropes are arranged twice next to one another and up to five such double ropes are arranged in parallel one behind the other.
The steel deck girder over the Rhine has a span of 287.04 m between the Ludwigshafen pier and the pylon . In the side view it is carried by three groups of ropes. It is 36.9 m wide, but is widened to 51.9 m by the additional lanes from about the middle of the river towards Ludwigshafen. It consists of an orthotropic slab supported by two 7.8 m wide box girders , which are arranged 11.2 m apart. Under the widening, next to the box girders, another cell is arranged, which is 7.5 m wide when the widening is completed. At the cable anchorage points, the box girders are connected to one another by discs. The carrier has an overall height of 4.5 m.
Between the pylon and the transition joint to the Mühlauhafen Bridge, the deck girder is not made of steel, but of a 146.41 m long prestressed hollow box girder with the same cross-section as the steel girder. The steel and concrete girders are connected to one another by a transition structure, but are not structurally connected to the pylon. Calculated from the pylon, concrete pillars stand after 60.16 m and after another 65 m under the concrete beam, which protrudes a further 21.25 m towards the Mühlaubrücke. The concrete girder is weighted over the pillars with ballast concrete slabs in order to counter the lifting forces on the pillars.
history
The bridge was designed by Fritz Leonhardt , the structural design was drawn up by the Ruhrberg engineering association . The general contractor was Hein Lehmann AG , which had already built several steel bridges over the Rhine. The concrete work was carried out by Züblin and Bilfinger , which at the time was still trading as Grün & Bilfinger AG .
The construction of the bridge lasted from 1969 to 1972. It was opened on June 28, 1972 by the then Transport Minister Georg Leber . The construction costs totaled around 130 million DM.
literature
- Mannheim and its buildings 1907–2007 ; 5 volumes. Mannheim 2000-2007
- E. Volke: The river bridge in the course of the north bridge Mannheim - Ludwigshafen (Kurt Schumacher bridge). In: Der Stahlbau , April 1973, pp. 97-105, 138-152, 161-172
Web links
- Kurt Schumacher Bridge (Mannheim). In: Structurae
- Reprint for the handover of the Kurt-Schumacher-Brücke on June 28, 1972 (PDF 10.2 MB).
- Kurt-Schumacher-Bridge between Mannheim and Ludwigshafen. Rhein-Neckar industrial culture, accessed on February 7, 2015 .
Individual evidence
- ^ Alfred Rösli on his 80th birthday. In: Swiss engineer and architect . 2000, accessed October 6, 2013 .
- ↑ The information on the current bridge is taken from the article by E. Vocke.
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The next bridge upstream: Konrad-Adenauer-Brücke (Mannheim) |
Bridges over the Rhine |
The next bridge downstream: Theodor-Heuss-Brücke (A 6) |