Alsenbrücke (Berlin-Moabit)
Coordinates: 52 ° 31 ′ 25 ″ N , 13 ° 22 ′ 20 ″ E
| Alsenbrücke, as a new construction of the Hugo Preuss Bridge |
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| use | Road traffic | |
| Convicted | Rahel-Hirsch-Strasse | |
| Crossing of | Humboldthafen access | |
| place | Berlin-Moabit | |
| construction | Single-span girder with steel box girder cross-section | |
| overall length | 87 m to 100 m (curved) | |
| width | 24 m | |
| Longest span | 84.4 m to 92.4 m (curved) | |
| Construction height | 3.30 m to 4.10 m | |
| start of building | 1858/1898/1925/2002 | |
| completion | 1928 name change to Hugo-Preuß-Brücke , between 1933 and 1945 Admiral Scheer-Brücke, 2004 new Hugo-Preuß-Brücke |
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| opening | May 9, 2005 | |
| planner | August Stüler , Ludwig Hoffmann , Ungers architects | |
| location | ||
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The Alsenbrücke in the center of Berlin near the former Lehrter Bahnhof was an iron multi-vault bridge to cross the Spree and the southern area of the Humboldthafen . The first bridge was built in the middle of the 19th century, followed by replacement buildings. The third bridge, which was last completed in 1928, had no southern connection to Alsenstrasse and was therefore no longer a Spree bridge. The new structure was named Hugo-Preuß-Brücke and was renamed Admiral-Scheer-Brücke in 1933 . Destroyed at the end of the Second World War, this road bridge was not rebuilt for around 50 years. It was not until 2002 that the Berlin Senate Administration had a new road bridge built at the old location. It leads the Uferstraße, now known as Rahel-Hirsch-Straße, back over the access canal to the Humboldthafen. In 2005 the name Hugo-Preuss-Brücke was given to the new building .
First bridge construction (1858–1865)
In 1858, the Berlin city administration began building a three-part, T-shaped road bridge, which on the one hand crossed Uferstrasse (Friedrich-Carl-Ufer , later Kapelle-Ufer ) via the entrance to the newly constructed Humboldthafen , and on the other to the extension of Alsenstrasse spanned the Spree. This bridge system divided the port entrance into two relatively narrow passages. A similar T-shaped bridge was formed by the Schilling Bridge and the Twin Bridge at the confluence of the Luisenstadt Canal with the Spree.
August Stüler delivered the plans for the iron structure. The construction of the technically demanding bridge system took seven years. The structure consisted of cast-iron arches that spanned the two port approaches, the loading road and the Spree. Natural stone veneers on the bridge piers and substructures as well as bridge railings and lights were used as decoration . The heavy use of shipping traffic and the constant exposure to water led to serious damage to the Spree Bridge in the following years, which was therefore closed in 1890 and soon afterwards had to be demolished.
Construction of the Spree Bridge (1898)
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In 1898, a new Spree bridge was inaugurated, which spanned the river with a flat, 50-meter-long arch segment without the intermediate piers of its predecessor that hindered shipping. The abutments and the railing received new jewelry from the workshop of the sculptor August Vogel . The part of the bridge over the port entrance remained largely unchanged. The name Alsenbrücke was still in use for the entire bridge system.
Hugo Preuss Bridge (1928)
After about two and a half decades, the entire Alsenbrücke had to be demolished for the further expansion of the port facilities and because of the increase in cargo ship traffic. So from 1925 to 1928 a new bridge was built at this point, but it only spanned the port entrance with a wide opening, while the Spreebrücke to Alsenstrasse had to be completely omitted due to the removed central pillar in the middle of the port entrance. The 170 meter long steel suspension bridge was named Hugo Preuss Bridge after the Berlin politician Hugo Preuss when it was opened to traffic . During the National Socialist era , the name was changed to Admiral-Scheer-Brücke , with which Admiral Reinhard Scheer was honored at the expense of Pruss, who was ostracized as Jewish. During the Second World War, the bridge was so badly damaged in the last few days before the German surrender that it could not be rebuilt. In addition, the Uferstrasse was now hardly needed for traffic, and the construction of the Berlin Wall prevented reconstruction.
New Hugo Preuss Bridge (2004)
Only the political turnaround and the planning of the Berlin Senate after the fall of the Berlin Wall made it possible to redesign the entire area around the Humboldthafen and to build the new main train station in place of the former Lehrter train station. This made it necessary to build a new road bridge on the north bank of the Spree, which would make the Uferstrasse (Rahel-Hirsch-Strasse, Kapelle-Ufer) passable again. The office of Oswald Mathias Ungers designed the architecture of the building, which was built between 2002 and 2004, while the engineering office Grassl took care of the construction. The bridge should initially be called Humboldthafenbrücke . Since this name was intended for the new railway bridge complex a little further north, the new structure was given back the old name Hugo Preuss Bridge in a ceremonial act when it opened in 2005 .
The 24-meter-wide road bridge has two lanes and bicycle and walkways on both sides. It is curved in plan with a radius of 321 to 345 meters. The span of the single-span steel beam varies accordingly between 84.4 and 92.4 meters. The cross-section of the structure consists of a double-curved, steel box girder with an orthotropic deck slab with a height of 3.3 to 4.1 meters.
In the approximate course of the former southern part of the Alsen Bridge over the Spree, after the completion of the main train station in 2006, a pedestrian crossing of the Spree was built a little downstream in a modern design, which is now called the Gustav Heinemann Bridge . Internally it was also called Alsensteg because the buildings in the government district on the southern bank of the Spree were also called Alsenblocks .
Web links
- Alsenbrücke (Berlin-Moabit). In: Structurae (New Hugo Preuss Bridge)
literature
- Eckhard Thiemann, Dieter Deszyk, Horstpeter Metzing: Berlin and its bridges. Jaron Verlag, Berlin 2003, ISBN 3-89773-073-1 , pp. 178-180.
Individual evidence
- ↑ a b c d e Homepage of the engineering company Grassl on the Hugo-Preuß-Brücke ( Memento from June 1, 2008 in the Internet Archive ); accessed October 29, 2009; Renewed from the archive on August 9, 2011
- ↑ a b Homepage of the Hugo Preuss Society; Retrieved October 28, 2009
- ↑ Berlin and its bridges , ... p. 180
- ↑ Hugo-Preuß-Brücke on stadtentwicklung.berlin.de , accessed on August 9, 2012
- ↑ Homepage of a construction company involved, accessed on November 5, 2009