Wooden bridge near Essing
Coordinates: 48 ° 56 ′ 18 " N , 11 ° 46 ′ 51" E
Wooden bridge near Essing | ||
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Convicted | Pedestrians, cyclists | |
Subjugated | Main-Danube Canal , State Road 2230 | |
place | Essing | |
construction | Tension band bridge | |
overall length | 189.91 m | |
Headroom | 7 m | |
building-costs | € 2.0 million | |
opening | 1986 | |
planner | Richard Johann Dietrich | |
location | ||
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Above sea level | 354 m above sea level NHN |
The wooden bridge near Essing is a tension band bridge that leads pedestrians and cyclists across the Main-Danube Canal near Essing near Kelheim . The bridge, which was built in 1986 after seven years of planning, was the longest wooden bridge in Europe at 189.91 m until it was replaced by the dragon's tail in Ronneburg in 2006 . The use of glued laminated timber as a tensioning strap is special on the bridge, known locally as the Tatzelwurm .
Production and numbers
The bridge was designed by Richard Johann Dietrich , static calculations were carried out by Heinz Brüninghoff and the Technical University of Munich , models were made and, among other things, tested in the wind tunnel.
The complex statics of the structure and the use of wood for the main girders, which are subject to high tensile loads, were honored with the Bavarian Engineering Timber Construction Award in 1988. The nine main girders, designed as tension straps, are 200 meters long and each have a cross-section of 22 × 65 cm. Since they hang freely between the support structures and follow the cable line, they are mainly subjected to tensile loads. The girders were delivered in 40 m long sections and glued on site using finger joints. This ensures that the bridge can withstand a payload of 500 kilograms per square meter. The construction costs amounted to around four million Deutschmarks.
Although the bridge sags deepest over the middle of the fairway of the Main-Danube Canal, at this point (353.60 m above sea level) it still has a clearance height of 7.0 m above the "highest navigable water level" (HSW) .
At the beginning of the 21st century, moisture-related fungal damage to the wooden structure made it necessary to repair the affected areas.
location
The structure spans the Main-Danube Canal and a bypass road. It is mainly used by pedestrians and cyclists, but can also be used by motor vehicles if necessary. Due to its curved shape, to which it owes its locally used name Tatzelwurm , the bridge fits elegantly into the landscape of the Altmühltal .
photos
German postage stamp from 1992 for the opening of the Main-Danube Canal.
Web links
- Wooden bridge near Essing. In: Structurae
- The bridge on the website of the Dietrich engineering office
- Manfred Sack: With swings across the canal. Opened in the Altmühltal: The Essing Bridge. Die Zeit , June 5, 1987, accessed February 8, 2013 .
literature
- Richard J. Dietrich: Fascination Bridges , Callwey, Munich 1998; Pp. 206-213, ISBN 3-7667-1326-4
- Matthew Wells: 30 Bridges , Laurence King, 2002, pp. 140–143, ISBN 1-85669-217-5 (German: 30 Bridges , Callwey, Munich ISBN 3-7667-1501-1 )
- Heinz Brüninghoff: The Essing Timber Bridge, Germany , in: Structural Engineering International , Volume 3, No. May 2, 1993