Elbe bridge Wittenberge (street)
Coordinates: 52 ° 59 ′ 11 ″ N , 11 ° 43 ′ 30 ″ E
| Wittenberge Elbe Bridge | ||
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| Convicted | Bundesstrasse 189 | |
| Subjugated | Elbe , km 456.30 | |
| place | Wittenberg | |
| construction | Steel box bridge | |
| overall length | 1110 m | |
| width | 11.9 m | |
| Longest span | 160 m | |
| Construction height | 4.7 m | |
| completion | 1978 | |
| location | ||
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The same bridge Wittenberge is with 1110 m the longest in the GDR built road bridge . The steel construction, lying west of Wittenberge , leads the federal highway 189 from Stendal to Perleberg at river kilometer 456.3 over the Elbe and the diked foreland.
Since 1851, Wittenberge had the only fixed Elbe crossing to have a railway bridge on the Magdeburg – Wittenberge railway line , which was also used by road traffic. It was not until the early 1970s that planning for a road bridge with two lanes and two sidewalks as part of a bypass road for the city began. The building was opened to traffic in 1978. The bridge consists of a 410 m long three-span river bridge and a 14-span foreland bridge on the southern bank of the Elbe.
Power bridge
The river bridge has a steel superstructure with the continuous beam as a structural system. Since the minimum passage width on the Elbe had to be 150 m, the span of the three-span bridge in the two peripheral fields was 125 m, and 160 m above the shipping opening. The construction height varies between 3.55 m and 4.70 m in the middle of the bridge. In the transverse direction, the main girder is a single-cell box girder with an 11.9 m wide orthotropic deck . The side members are arranged at a distance of 6.7 m.
The bridge superstructure was welded together behind the northern abutment and pushed in in sections with the help of a fore-end spike using rolling saddles. To reduce the cantilever length during the push-in process, one auxiliary supports were arranged in each of the side panels and two in the middle panel.
Foreland bridge
The 14-span approach bridge with spans of 50 m each is a steel composite construction with the single-span girder as a structural system in the longitudinal direction. In the transverse direction there is a T-beam with a construction height of 3.0 m and a spacing of 7.0 m between the side members. The roadway slab consists of 28 cm thick precast concrete parts , which are connected to the steel girders in a shear-proof manner via dowels arranged in recesses and subsequently cast .
The approximately 100 t heavy steel structures of the individual fields were assembled behind the southern Elbe dike, then transported to the installation site and lifted in with truck cranes . This was followed by the assembly of the prefabricated carriageway parts, with an auxiliary support in the middle of the field until the grouting concrete had hardened.
New motorway bridge
In the course of the northern extension of the federal motorway 14 , a new Elbe bridge is planned, which is to be built next to the existing road bridge up the Elbe.
literature
- Erich Fiedler: The development of steel bridge construction in the GDR up to the time of the fall of the Wall - a look back (Part I) . In: Stahlbau 70 , year 2001, issue 4, pp. 262–276.
- Erich Fiedler: The development of steel bridge construction in the GDR up to the time of the fall of the Wall - a look back (Part II) . In: Stahlbau 70 , year 2001, issue 5, pp. 317–328.
Individual evidence
- ↑ Wittenberger Elbbruecke - collection of documents (PDF; 16.5 MB)
- ↑ Erich Fiedler: Road bridges over the Elbe . Saxoprint Dresden 2005, ISBN 3-9808879-6-0 , p. 168
- ↑ DEGES: Project of the motorway bridge ( Memento of the original from December 16, 2008 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
| upstream | Bridges over the Elbe | downstream |
| Elbe bridge Wittenberge (railway) | Elbe bridge Wittenberge (street) |
Elbe bridge Dömitz (railway) |