Scherkondetal Bridge
Coordinates: 51 ° 5 ′ 41 ″ N , 11 ° 18 ′ 48 ″ E
| Scherkondetal Bridge | ||
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| Convicted |
High- speed route Erfurt – Leipzig / Halle |
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| Subjugated | Scherkondetal | |
| construction | Frame bridge | |
| overall length | 576.5 m | |
| width | 13.9 m | |
| Longest span | 44 m | |
| height | 34 m | |
| start of building | February 2008 | |
| completion | 2011 | |
| location | ||
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The Scherkondetalbrücke is a double-track railway overpass on the new Erfurt – Leipzig / Halle line . The 576.5 m long structure is designed as a frame bridge almost without joints or bearings, a form of construction that has not yet been used in a prestressed concrete railway bridge in Germany, as the interchangeability of the superstructures was previously specified in the framework planning for large bridges of Deutsche Bahn. Due to the changed design specifications, the construction should become standard in the future.
The Scherkondetal Bridge was awarded the undoped German Bridge Construction Prize 2012 in the “Road and Railway Bridges ” category because, according to the jury's verdict, it was “an aesthetically convincing, innovative structure and a milestone in modern railway bridge construction”. It is the first semi-integral prestressed concrete bridge for the high-speed traffic of Deutsche Bahn.
course
The structure lies between the route kilometers 215.353 and 215.929. To the east of the town of Krautheim , about 15 km north of Weimar , it spans the Scherkonde valley at a height of up to 34 m. To the east is the Großbrembach overtaking station and the Gänsebachtal bridge .
history
planning
The bridge is located in the planning approval section 1.2 of the new line.
According to the planning status of June 1994, the building was calculated at a net cost of 25 million D-Marks.
The result of the planning approval in 1995 envisaged a structure with a length of 572 m between the construction kilometers 24.25 and 24.83. The bridge should have a box-girder cross-section in accordance with the standard construction method. With uniform spans of 44 m in the longitudinal direction, two continuous girders with six or seven fields were planned, which separated an expansion joint. The abutments were intended as resting points.
In 2007, the draft was revised in order to obtain increased transparency while adhering to the plan approval without deviations from the regulations, and was implemented accordingly between 2008 and 2011.
construction
The construction project was put out to tender in June 2007. The construction contract was awarded at the beginning of December 2007 with an order volume of 13.7 million euros net for the construction lot including earthworks. The shell was completed in October 2010 and the structure completed in 2011. The superstructure was built with an advancing armor starting at the eastern abutment.
On August 13, 2014, a test loading took place with two freight trains, each weighing 966 tons.
construction
The prestressed concrete superstructure consists of 14 openings with spans of 27.0 m in the edge field, 36.5 m in the following two fields, 44 m in the next ten inner fields and another 36.5 m. Bored piles with a length of up to 19 m are available as foundations . The superstructure of the Scherkondetal Bridge is a haunched prestressed concrete slab beam with a full cross-section, which is monolithically connected to 11 of the 13 columns. This enables a slimmer superstructure and slimmer pillars, and maintenance of the bearings is no longer necessary. However, the superstructure can no longer be exchanged.
The construction height of the superstructure is variable, 2.0 m in the field and 3.5 m above the pillars. Eleven pillars are solid and 1.5 m thick. In the transverse direction, the piers at the head have a width of 5.50 m and a pillar length of 1:40. With the usual bridge constructions on the new sections with continuous girder superstructures, the construction height is constant 3.6 m with the same span and, due to the space required for the bearings on the pillars, their thickness is 2.7 m. The abutments and pillars are founded in the claystone with large bored piles of up to 19.0 m in length.
The rest point of the bridge is the western abutment with a force-fit connection to the superstructure and the following eleven pillars. Bearings are arranged on the two remaining pillars and the eastern abutment; there is also an expansion joint with a rail extension on the eastern abutment .
literature
- S. Marx, L. Krontal, S. Bätz, A. Vehlow: The Scherkondetalbrücke, the first semi-integral valley bridge of DB AG on the new Erfurt - Leipzig / Halle VDE 8.2 line . In: Beton- und Stahlbetonbau , March 2010, pp. 137–141.
Web links
- Brochure (PDF; 738 kB) on vde8.de
- Pictures and information about the building on marxkrontal.com
- Ludolf Krontal: Scherkondetal Bridge . (PDF; 5 MB) Munich Concrete Construction Colloquium 2010
- Scherkondetal Bridge . Structurae
- Pictures of the construction site on bastellen-doku.info
Individual evidence
- ↑ DB Netze guidelines for the design of railway bridges ( 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.
- ↑ German Bridge Construction Prize 2012 ( Memento of the original from March 15, 2012 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Bärbel Jossunek, Vasco P. Kolmorgen, Alexander Wolf: route brochure New Erfurt - Leipzig / Halle. (PDF) (No longer available online.) In: DB Netz; Infrastructure & technology; Customer information. Railway concept, August 13, 2015, p. 175 , archived from the original on August 16, 2015 ; accessed on August 15, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. P. 43
- ^ A b c Planungsgesellschaft Bahnbau Deutsche Einheit , Projektzentrum Leipzig (ed.): Transport project German Unity - Rail No. 8: ABS / NBS Nuremberg - Erfurt - Halle / Leipzig - Berlin: Section Erfurt - Leipzig / Halle: Figures and facts . 20-page brochure, Leipzig, August 1995, pp. 8 f, 13 ( PDF file , 2.73 MB).
- ^ Planungsgesellschaft Bahnbau Deutsche Einheit (Ed.): Transport project German Unity Rail No. 8: ABS / NBS Nürnberg-Erfurt-HalleLeipzigBerlin: Section Erfurt - Leipzig / Halle: Planning status June 1994 . Brochure, Leipzig, 1994.
- ↑ Earthworks and bridges near Hauenthal until summer 2011. In: Thüringer Allgemeine , October 27, 2010.
- ↑ Armin Burghardt: Test on the new ICE route: At a snail's pace with full load over the Scherkondetal . In: Thuringian General . August 14, 2014 ( online ).
- ↑ Project description by the Büchting + Streit engineering office ( memento of the original from March 19, 2012 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice.
