Massetalbrücke
Coordinates: 50 ° 32 ′ 11 ″ N , 10 ° 59 ′ 29 ″ E
| Massetalbrücke | ||
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| Convicted |
High- speed line from Nuremberg to Erfurt |
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| Subjugated | Dimensions | |
| place | Oils | |
| construction | Arch bridge | |
| overall length | 385 m | |
| Longest span | 165 m | |
| Construction height | 3.6 m | |
| height | 78 m | |
| start of building | 2009 | |
| completion | 2013 | |
| location | ||
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The mass Viaduct is a railroad - arched bridge the new Ebensfeld-Erfurt on the edge of the hamlet Oelze the South Thuringia community Katzhütte . It spans the valley of the masses with a length of 385 m and is the highest structure of the new line with a height above the valley floor of up to approx. 78 m.
Scheduled for February 2009 to June 2011 construction of the building was in Europe on 1 August 2008 advertised . The submission was scheduled for October 28, 2008. Ultimately, the building was awarded at the beginning of May 2009. The shell construction work was completed at the end of 2013.
As part of the construction work, around 30,000 m³ of dams are to be poured and around 20,000 m³ of material to be excavated and dumped. Around 300 meters of streets and paths are to be built or expanded.
The estimated construction cost before the tender was 11.5 million euros. It is now (as of 2012) at 15.7 million euros.
course
The structure lies between the route kilometers 137.131 and 137.516. The bridge route runs largely in a straight line, partly also in a transition curve . The Fleckberg tunnel joins the structure to the north, and the Masserberg tunnel follows to the south . A cut about 100 m long and up to 9 m deep on the north side, various culverts and rain retention basins as well as the relocation of two forest roads were also part of the construction work.
Substructure
The pillar of the bridge have a rectangular reinforced concrete hollow cross-section with broken corners and tapered with a suit of 70: 1 upwards. The six stands on the arch do not have a suit, their dimensions are constant. The reinforced concrete arch with a span of 165 m has a hollow cross-section with variable height and width and is accessible. The arch was erected with a ground-supported shoring with section lengths of around 15 m. The production of the arch cross-section was carried out from both fighters in sections in symmetrical cycles. First the floor slab was concreted, then the side bars and finally the upper slab. The last arch section was concreted at the end of April 2011, followed by lowering in May and laterally moving the shoring on May 23. The substructures are all flat. The 9 m deep transom foundations each consist of around 1000 m³ of concrete and 130 t of reinforcing steel.
The scaffolding was supported by five scaffolding towers, each with eight posts and two supporting yokes on the fighters. The central tower had a height of around 70 m and a floor plan of 9 × 7 m. The neighboring towers, which were 26 m apart, were around 50 m high and had a floor plan of 7 × 7 m. This is followed by towers with a height of 25 m and a 6 × 7 m base at a distance of 17 m. The arched formwork was supported between the towers by HEB 800 longitudinal girders or lattice girders. The entire construction had a mass of 1000 tons. The stability of the structure as it was built was ensured by the static interaction of the shoring and the arch. The shoring was built in sections and the arch production began before the crown of the shoring.
superstructure
The superstructure has a continuous beam with 12 fields as a building system . To the south of the arch there are three openings with a span of 44 m, seven openings with a span of 23.57 m each above the arch for the elevated deck girder and two fields with a span of 44 m to the north of the arch. The superstructure has the cross-sectional shape of a single-cell reinforced concrete hollow box with inclined webs, prestressed in the longitudinal direction . In addition, the deck is prestressed in the transverse direction. The standard width of the superstructure is 14.1 m. The construction height is 3.6 m. The anchor point is in the southern abutment . Since the layout of the route in the area of the bridge is partly straight and partly curved, the superstructure has an equivalent circular arc with a radius of 34,000 m and variable cantilever lengths to enable construction using the incremental launching method . The last cycle (cycle number 18) of the superstructure was concreted in May 2012 and the last 33 m long shunting cycle followed on May 29.
Construction stages
Shoring, May 2010
Northern arch, October 2010
April 2011
Extended shoring, May 2011
Incremental launching procedure November 2011
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.
- W. Heine, H.-J. Jonas, M. Kästner, E. Lederhofer, R. Wiest: ICE route Nuremberg – Erfurt. Arch bridges over the valleys of the Thuringian Forest . In: civil engineer . No. 3/2015 . Springer-VDI-Verlag, March 2015, ISSN 0005-6650 , p. 104-114 .
Web links
- Brochure (PDF; 143 kB) on vde8.de
- Information on the website of the construction company Hentschke Bau
- Information and pictures about the construction on building sites-doku.info
Individual evidence
- ↑ a b c d e f Oliver Franke, Heiko Riedel: Concrete in Form - Bridges over the 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.
- ^ D-Erfurt: Railway bridge . Document 2008 / S 148-199445 of August 1, 2008 in the electronic gazette of the European Union.
- ^ D-Erfurt: Construction of railway bridges . Document 2009 / S 89-128149 of May 9, 2009 in the electronic gazette of the European Union.
- ^ D-Erfurt: Railway bridge . Document 2008 / S 50-068745 of March 12, 2008 in the Electronic Official Journal of the European Union.
- ↑ 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 1, 2017. p. 111
- ↑ Allgemeine Bauzeitung: Central tower from the shoring extends to a height of almost 70 meters , December 3, 2010