Wallersbach Viaduct
Coordinates: 50 ° 34 ′ 20 " N , 10 ° 43 ′ 43" E
 Wallersbach Viaduct
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| Convicted | Federal motorway 73 | |
| Subjugated | Wallersbach | |
| place | Suhl | |
| construction | Prestressed concrete box girder bridge |
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| overall length | 555.05 m | |
| width | 2 × 14.25 m | |
| Longest span | 52.75 m | |
| Construction height | 3.9 m | |
| height | 60 m | |
| start of building | 2003 | |
| completion | 2006 | |
| location | ||
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The Wallersbach viaduct is a 555 m long bridge on the A73 motorway at 8.0 km.
The structure is located between the Suhl- Friedberg and Schleusingen near Suhl motorway junctions in southern Thuringia . It spans the Wallersbach and several forest paths with eleven fields at a maximum height of 60 m. The route of the motorway in the area of the bridge has a radius of 800 m in plan and a transverse inclination of 4.5% and has a knoll formation in plan with a variable longitudinal inclination of 1.7% to 3.7%. The overpass with two separate superstructures was built between 2003 and 2006.
Foundation and substructures
The pillars , up to 55 m high, have a flat foundation . The full cross-section of the high pillars is V-shaped. To accommodate the bearings , the octagonal cross-section at the pier head expands 7.8 m below the superstructure into two rectangular cross-sections. The highest support has the outer dimensions of 7.0 m × 3.6 m at the bottom.
Superstructures
The two adjacent superstructures of the prestressed concrete bridge have the continuous beam as a structural system in the longitudinal direction . In the transverse direction there is a box cross-section with a constant construction height of 3.9 m. The deck slab is between 22 cm and 55 cm thick, the floor slab between 20 cm and 55 cm. The inclined webs have a constant thickness of 40 cm. The prestressing consists of a mixed construction with internal and external tendons .
The total span in the motorway axis for the eleven-span bridge, which is curved in plan, is 555.05 m. The two end fields span 40.15 m, the nine inner fields have a span of 52.75 m.
execution
The bridge superstructure was constructed using the incremental launching method with approximately half the field length as the incremental length.
literature
- Proceedings: 15th Dresden Bridge Building Symposium . March 2005