Danube bridge Leipheim
Coordinates: 48 ° 26 ′ 49 ″ N , 10 ° 12 ′ 24 ″ E
 Danube bridge Leipheim
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| Convicted | Federal motorway 8 | |
| Crossing of | Danube | |
| Subjugated | Augsburg – Ulm railway line | |
| place | Leipheim | |
| construction | Prestressed concrete - box girder bridge | |
| overall length | 375 m | |
| width | 2 × 19.5 m | |
| Longest span | 90 m | |
| height | 12 m | |
| building-costs | 30 million DM | |
| start of building | 1996 | |
| completion | 2001 | |
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The Leipheim Danube Bridge is part of the Federal Motorway 8 and spans the Danube and its foreland with the Augsburg – Ulm railway line in Swabia between Ulm and Günzburg west of Leipheim at river kilometer 2567.51 . The structure is located between the Ulm / Elchingen motorway junction and the Leipheim junction. The bridge was opened to traffic for the first time in 1937.
Bridge from 1937
In 1935, as part of the construction of the Reichsautobahn Stuttgart – Munich, construction work began on the Leipheim bridge over the Danube. The construction of the large bridge was one of the showcase projects in the National Socialist German Reich and was accordingly accompanied in detail by the media.
The reinforced concrete bridge designed by Willy Stöhr with the artistic advice of Paul Bonatz consisted of four three-hinged arches lengthways with spans of 73 m, 80 m, 85 m and 78 m. 1/7 was chosen as the ratio between the height of the arrow and the span. The total of 359.22 m long structure had a 10.8 m wide deck for each directional lane. This was designed as a five-web T- beam , which was mounted on two concrete arched ribs at intervals of 6.5 m to 7.4 m with 0.5 m thick cross frames. The concrete arches were 2.2 m wide and spaced 4.6 m apart. They had a U-shaped cross-section with a maximum height of 2.2 m. At the apex, the arched rib merged with the deck. Christian Menn counts the old Danube bridge Leipheim due to its extremely careful design, which is strongly reminiscent of the arched bridges by Robert Maillart , as one of the few noteworthy engineering works of art on the Reichsautobahn.
The bridge was badly damaged by an explosion in April 1945. Reconstruction began in 1946 and the inauguration took place on September 13, 1948.
Due to the poor state of the structure and the planned expansion of the federal motorway to six lanes, the arched bridge was replaced by a new building between 1996 and 2001. First a new bridge was built immediately west of the existing structure, then the old structure was demolished in autumn 1999 with the help of a blast and finally the second new one was built on the site of the old bridge.
Bridge from 2001
The new, 375 m long structure consists of two 19.5 m wide superstructures and has a continuous beam with six fields as a structural system in the longitudinal direction. The spans are 45 m, 55 m, 70 m, 90 m, 70 m and 45 m. In the transverse direction, each superstructure has a single-cell prestressed concrete box girder, which is prestressed in the longitudinal and transverse directions.
The bridge section over the Danube was cantilevered .
literature
- Roland May: Pontifex maximus. The architect Paul Bonatz and the bridges. Monsenstein and Vannerdat, Münster iW 2011, ISBN 978-3-86991-176-2 , pp. 298-309, 536-538, 619 f.
- Karl Schaechterle , Fritz Leonhardt : The design of the bridges . Volk und Reich Verlag, Berlin 1937.
Web links
Individual evidence
- ^ Ernst Vollbehr : picture of the construction site. ( Memento of March 8, 2007 in the Internet Archive )
- ^ Christian Menn : Reinforced concrete bridges . Springer-Verlag, Vienna 1990, ISBN 3-211-82115-5 , p. 21
- ^ The Leipheim bridge across the Danube was blown up. ( Memento from July 19, 2014 in the Internet Archive ) (PDF) In: Tiefbau , 2/2001
- ^ Website of the engineering office Karl Rettich
- ↑ Home Construction MATTHEW SCHMID ( Memento of 1 December 2009 at the Internet Archive )
