Elbe bridge Meißen (railway)
Coordinates: 51 ° 9 ′ 42 " N , 13 ° 28 ′ 44" E
| Meissen Elbe Bridge | ||
|---|---|---|
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| use | Railway, pedestrian and cycle bridge | |
| Convicted |
Railway line Borsdorf – Coswig , km 95.01 |
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| Subjugated | Elbe , km 81.85 | |
| place | Meissen | |
| construction | Truss bridge | |
| overall length | 256.4 m | |
| width | 15.75 m | |
| Longest span | 56.2 m | |
| Construction height | 5.96 m | |
| Clear height | 6.71 at HSW | |
| completion | 1926 | |
| location | ||
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The Elbe bridge in Meißen is a total of around 256 m long railway bridge that spans the Elbe in Meißen between the Cölln district and the Triebischvorstadt at river kilometer 81.85 .
Bridge from 1868
The bridge was first put into operation on December 22, 1868 as part of the construction of the Borsdorf – Coswig railway , a second railway connection between Leipzig and Dresden , at 95.01 km. The Duisburg bridge construction company Johann Caspar Harkort ( Harkort'sche Fabrik ) built the structure between 1865 and 1868. At the request of the city of Meißen, the downstream superstructures of the second track with a center distance of 5.57 m were also built and the city revocable as a pedestrian connection.
The iron bridge had three main openings with spans of 54.61 m, as well as three flood openings of 21 m span, two on the left and one on the right bank of the river. The building system in the longitudinal direction was a chain of single-span girders . The bridge superstructure consisted of iron truss constructions with the carriageway below. At the main openings, semi-parabolic girders with 4.7 m profile center distance in width and 7.53 m profile center distance in height were arranged in the center of the field and 5.83 m above pillars. The three secondary openings were designed as trough bridges with parallel lattice girders in the longitudinal direction with a height of 3.2 m profile axis spacing. The sandstone pillars were founded flat on rock or gravel .
As part of the double-track expansion of the railway line for heavy goods traffic between Upper Silesia and Bavaria , the renovation of the Meissen train station began in 1913 . For the purpose of underpassing the streets, the railway systems were raised by 2.5 m. This required the Elbe bridge to be raised by 3.0 m, the structure to be reinforced to accommodate increased axle loads and a replacement structure for the pedestrian crossing. In 1917, at the expense of the city of Meißen, a 3.0 m wide pedestrian walkway attached to the side was added to the bridge superstructures downstream. As a result of the First World War , however, construction work at the station came to a standstill until 1924. New loading regulations for railway bridges from 1922 led to the decision to build new superstructures on the existing pillars and no longer, as originally intended, to raise and strengthen the old superstructures by 3.0 m.
Bridge from 1926
In autumn 1924, Lauchhammer-Rheinmetall AG from Berlin won the tender for the new superstructure with a special design. However, the design as a half-timbered cantilever bridge with inclined upper chords was rejected by the Landesverein Sächsischer Heimatschutz , as it would impair the landscape unbearably. The association wanted a massive arch bridge , which, however, was not approved by the Deutsche Reichsbahn due to the higher costs and the delay in construction due to new pillars. Finally, a new design with a parallel-belted lattice girder was developed by the Reichsbahndirektion Dresden with the artistic advice of the architect Heinrich Tessenow , which was implemented by Lauchhammer-Rheinmetall AG with a steel mass of 1310 t by the end of October 1926. The pillars were taken over from the previous building. The bridge was partially destroyed in 1945. In 1946, however, the downstream track was dismantled as part of the reparation payments for the Soviet Union . In 1970 the railway line was electrified.
As part of the expansion of the S 1 line of the Dresden S-Bahn , the railway overpass structure was comprehensively repaired from October 2012 to November 2013. In addition to the reconstruction of the second track, the foundations were refurbished, steel components were partially replaced, the old corrosion protection was completely removed and a new corrosion coating was applied.
construction
The structure consists of a bridge for each direction track with a center distance of 6.6 m. The tracks are at the main openings between the longitudinal girders, 1.66 m below the top edge. In the side openings, the tracks are arranged above the framework structure. In addition to a service walkway upstream, a pedestrian bridge is also arranged downstream, which is mounted on the inside on the main girder of the inner railway bridge and has its own truss longitudinal girder on the outside.
The river bridge has a three- span girder as a longitudinal structure with spans of 56.2 m each. A flood opening with a span of 22.0 m connects on both sides, so that the steel construction, taking into account the dividing pillars, has a total span of 214.22 m. Together with the building on the left bank over Siebeneichener Straße and the underpass structure on the right bank, the total length of the bridge is around 256.4 m.
The superstructures of the steel truss bridge have in the main openings in the longitudinal direction two parallel girders 5.96 m high, arranged at a center distance of 4.9 m with posts at a center distance of 5.62 m and diagonals crossed at 45 °. In the side openings, the beams are half as high. The pedestrian bridge has a massive deck slab and is supported on the outside by a 3.0 m high rack. Siebeneichner Straße was bridged with a half-timbered superstructure in 1868. During the renovation in 1926, a 1.7 m thick reinforced concrete slab was produced with a clear width of 17.1 m, into which seven steel girders with a construction height of 1.3 m were concreted into each direction track.
literature
- Julius Karig: The Elbe Railway Bridge in Meißen. In: The civil engineer. 6th vol., H. 28/29, 1925, ISSN 0005-6650 , pp. 3-17.
Web links
Individual evidence
- ^ Dresden Waterways and Shipping Office
- ↑ Truss bridge
- ↑ Gerd Gornig, Dieter Hildebrandt, Reinhard Müller: The Elbe bridge in Meißen in new splendor . In: DB ProjektBau GmbH (Hrsg.): Infrastructure projects 2014: Building at Deutsche Bahn . DVV Media Group / Eurailpress, Hamburg 2014, ISBN 978-3-87154-505-4 , p. 44-47 .
| upstream | Bridges over the Elbe | downstream |
| Elbe bridges Niederwartha | Elbe bridge Meißen (railway) |
Meissen Old Town Bridge |