Füllbachtalbrücke (railway)
Coordinates: 50 ° 13 ′ 25 ″ N , 11 ° 0 ′ 21 ″ E
| Füllbach valley bridge | ||
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| Convicted |
High- speed line from Nuremberg to Erfurt |
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| construction | Prestressed concrete - box girder bridge | |
| overall length | 1012 m | |
| width | 14.30 m | |
| Longest span | 63 m | |
| Construction height | 5.0 m | |
| height | approx. 40 m | |
| start of building | 2009 | |
| completion | 2012 | |
| location | ||
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The Füllbachtalbrücke is a 1012 m long double-track railway overpass on the high-speed line Nuremberg – Erfurt .
The girder bridge is located south of Coburg between Grub am Forst and Niederfüllbach . The structure spans the valley of the Füllbach , a tributary of the Itz , with the federal road 303 , the Coburg-Lichtenfels railway line , farm roads and a company site. With the expansion of the line, the structure has received a noise protection wall on both sides and a slab track with a 4.7 m track spacing.
The structure was put out to tender in spring 2008. Construction should start in November 2008, completion in August 2011. Work on site began in spring 2009. On April 4, 2011, the last section of the superstructure at the southern abutment was concreted. The rest of the work lasted until 2012. The contract was worth around 26.5 million euros.
course
Between the two abutments, at route kilometers 101.183 (in the south) and 102.195 (in the north), the route curves to the right in a northerly direction. The gradient initially drops at 9.72 per mille and rises from a turning point in km 101.469 to 7.23 per mille. The design speed is 300 km / h. The Niederfüllbach connecting curve runs southwest of the bridge .
The valley floor of the valley crossed in north-south direction has a width of around 600 m with gently rising valley flanks on both sides. The valley level is between 287 m (Füllbach) and 315 m (abutment areas). The Rennberg tunnel connects to the north, and the Höhnberg tunnel follows to the south . An information point was set up on Rennbergweg.
construction
The bridge superstructure consists of a chain of three continuous girders . The northern continuous beam is 390 m long and has seven fields, the middle one is 406 m long with seven fields and the southern 216 m with four fields. The cross-sectional shape is a single-cell reinforced concrete box girder with a constant construction height of 5.0 m and inclined webs, which is prestressed in the longitudinal direction . The deck slab is also prestressed in the transverse direction.
The spans from south to north are 42 m, 4 × 58 m, 3 × 63 m, 3 × 53 m, 6 × 58 m and 42 m with a superstructure width of 14.30 m. The largest nozzle width of 63 m is reached in three fields in the area of the B 303, the connection point Roth am Forst / Grub am Forst and the Füllbach, u. a. as a result of the visibility required for road traffic. The spans of the neighboring fields reduced to 53 m are due to design reasons.
The two abutments are fixed points. The central continuous beam has a group of three pillars as a fixed point. At both ends there are rail extensions with compensating plates in the area of the separating joints .
The 17 pillars of the bridge have heights of 20 m to 40 m. They have a rectangular reinforced concrete hollow cross-section with broken corners and taper upwards with a 70: 1 suit . The two dividing pillars and three fixed pillars have external dimensions of 4.5 m × 6.0 m (width × depth) at the pier heads, the dimensions of the other standard pillars are 2.7 m × 6.0 m.
Construction work
In the course of the bridge construction, around 22,800 m³ of earth were excavated and 16,800 m³ of concrete for foundations, pillars and abutments and around 15,700 m³ of concrete for the superstructure (including edge caps) were installed. Among other things, 166 large bored piles with a diameter of 1.5 m and lengths between 17 and 36 m, with inclinations of 10: 1 to 8: 1, were installed for the foundation of the pillars.
The superstructure was constructed field by field from north to south with an underlying feed scaffolding. Due to the maximum field length of 63 m, the 138.6 m long and approximately 900 t heavy construction was specially developed for this structure. It consisted of two 4 m high box girders with a length of about 71 m. The rear trailer and the front stem were about 33.6 m long. As a special feature, a building crane was attached to the side of the feed device. The regular cycle of the superstructure sections was three weeks. The superstructure cross-section was concreted in two sections. First the 35 cm thick floor slab was produced together with the 60 cm wide web walls, then the road slab followed. Concrete defects at the transition between the floor slab and the web wall had to be repaired in 2011.
Construction stages
August 2009, looking south
November 2009, reinforcement superstructure
November 2009, reinforcement superstructure
August 2010, construction status
October 2010, construction status
September 2011, construction status
June 2014, construction status
literature
- Oliver Franke, Heiko Riedel: Concrete in shape - bridges over the Füllbach and Massetal . DB ProjektBau GmbH (Ed.): Infrastructure projects 2010. Construction at Deutsche Bahn . Eurailpress-Verlag, Hamburg 2010, ISBN 978-3-7771-0414-0 , pp. 44-49.
Web links
- Brochure of the planning company Bahnbau Deutsche Einheit mbH on the new line from January 1995 (PDF, 15 pages, 2.1 MB)
- Brochure (PDF; 344 kB) on vde8.de
- Information on the website of the construction company Hentschke Bau
- Pictures of the construction site on bastellen-doku.info
Individual evidence
- ↑ a b c Deutsche Bahn AG, Communication / DB ProjektBau GmbH, Southeast Branch, Erfurt Project Center (Ed.): New Erfurt – Leipzig / Halle line: Füllbachtalbrücke railway overpass / Coburg Süd connection , information sheet (four pages). Status: April 2007 (PDF; 344 kB)
- ↑ a b c Wolfgang Feldwisch, Olaf Drescher , Mike wing: The valley bridges of the new and upgraded line Nuremberg - Erfurt . In: Eisenbahntechnische Rundschau , Issue 9/2010, September 2010, ISSN 0013-2845 , pp. 558-567.
- ↑ a b c Oliver Franke, Heiko Riedel: Concrete in Form - Bridges over Füllbach and Massetal . In: DB ProjektBau GmbH (Ed.): Infrastructure projects 2010. Construction at Deutsche Bahn . Eurailpress-Verlag, Hamburg 2010, ISBN 978-3-7771-0414-0 , pp. 44-49.
- ↑ Schüßler plan: Route brochure for the new VDE 8.1 line from Breitengüßbach to Erfurt. Published by DB Netz AG Regional Area Southeast. As of June 1st, 2017. p. 97 ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
