Schafstalgrund viaduct
| Schafstalgrund viaduct | |
|---|---|
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| Technical specifications | |
| length | 524.6 m |
| Max. Span | 49.4 m |
| Superstructure width | 2 × 14.25 m |
| Construction height | 3.3 m |
| Max. Height above valley | 61 m |
| system | Prestressed concrete box bridge |
The Schafstalgrund viaduct is a 524.6 m long bridge on the 71 motorway .
The structure is located at kilometer 135 between the Suhl motorway triangle and the Meiningen- Nord motorway junction . It spans the valley of the Schafstalgrund in the forest west of Dietzhausen at a maximum height of 61 m with eleven fields. The bridge has a radius of 1800 m over the first 100 m, followed by a clothoid with A = 900. The longitudinal gradient to the east varies between 1.1% and 3.1%. The overpass with two separate superstructures was built between 2000 and 2002 at a cost of around 10 million euros.
Foundation and substructures
The abutments and pillars have a flat foundation on the red sandstone . The pillars are between 24 m and 57 m high. The full cross-section of the piers has a taper of 1:70 in the longitudinal direction of the bridge and consists of two trapezoidal pillar heads which are connected to one another by a disc.
Superstructures
The two adjacent superstructures of the prestressed concrete bridge are continuous girders with a hollow box cross-section and a constant construction height of 3.3 m. The pre-tensioning consists of a mixed construction with internal and external tensioning cables .
The span for the 11-span bridge is 40.0 m + 9x49.4 m + 40.0 m.
execution
The bridge was built using the incremental launching process in 21 cycles with regular cycle lengths of 25 m. The clock basement was located on the eastern abutment, which resulted in an upward thrust with an average gradient of 2.65%. Due to the geometry of the floor plan, the bridge had to be shifted not only lengthways but also crossways.
literature
- DEGES: Bridge structures in the new federal states . Ernst & Sohn, Berlin (Germany), 2004. ISBN 3-433-01700-X
Web links
- Schafstalgrund viaduct. In: Structurae
- Schafstalgrund Viaduct (pdf; 255 kB) ( Memento from September 28, 2007 in the Internet Archive )
Apple Town | Altwipfergrund | Coating ground | Reichenbach | Tame Gera | Schwarzbachtal | Wild Gera | Steinatal | Albrechtsgraben | Seßlestal | Schafstalgrund | Dispute | Schwarza | Red Valley | Schindgraben | Judental | Hasel Valley | Werra Valley | Jüchsen | Bahratal | Saale Valley | Lauertal | Thalwassertal | Maibach
Coordinates: 50 ° 37 ′ 0 ″ N , 10 ° 35 ′ 15 ″ E