Aula viaduct
Coordinates: 50 ° 48 ′ 45 " N , 9 ° 35 ′ 10" E
| Aula viaduct | ||
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| Convicted |
High- speed line from Hanover to Würzburg |
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| Subjugated | Auditorium , B 454 u. a. | |
| place | Niederaula | |
| overall length | 880 m | |
| width | 14.3 m | |
| Longest span | 44 m | |
| height | 45 m | |
| start of building | 1985 | |
| completion | circa 1988 | |
| location | ||
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The Aula Viaduct is an 880 m long and up to 45 m high railway bridge on the high-speed line from Hanover to Würzburg . In the area of the Kleba district of the Niederaula municipality, it crosses the auditorium and therefore bears its name. It also spans federal highway 454 , the Mühlgraben river and several field and forest paths.
course
The route runs in a north-south direction in a radius of 5100 m.
The gradient drops towards the south at 12.5 per thousand.
In the area of pillar 16, the auditorium was pivoted.
history
The structure was in the planning and construction phase in planning section 15 of the central section of the new line.
Construction work began in September 1985 and should (as of around 1987) end in May 1988.
technology
A total of 25,500 m³ of concrete, 2,460 t of concrete and 365 t of prestressing steel were used for the structure. Around 10,000 m³ were excavated for the foundation. A noise protection wall (1820 running meters) was installed on both sides of the structure.
superstructure
The superstructures were designed as single-cell prestressed concrete box girders and designed as single-span girders according to the framework planning for valley bridges of the former German Federal Railroad . They were pushed forward by incremental launching at a rate of one and a half weeks.
Substructure
The superstructure rests on 19 hollow pillars and two abutments, with a pillar spacing of 44 m. The pillars are between 11 and 40 m high and taper with a double-sided taper of 50: 1. Its wall thickness is between 40 and 80 cm, the pier heads measure 4.00 x 6.00 m. The pillars are at 2600 running meters and up to 21 m deep bored piles of 150 cm diameter founded . The upper edge of the rail is up to 45 m above the valley floor.
After inadequate shear strengths were found during drilling for exploring the ground , additional slope protection measures were necessary to increase the stability of the bridge and the neighboring Hattenberg tunnel. The southernmost four foundations of the bridge were built under the protection of up to 27 m deep large bored pile walls with a diameter of 150 or 200 cm. A total of around 10,000 m³ was excavated and around 4,000 t of cement was injected into the rock.
Individual evidence
- ↑ a b c d e f g h i Deutsche Bundesbahn, project group NBS Frankfurt of the Bahnbauzentrale (publisher): Aula valley bridge, Aula slope protection . Brochure (5 pages), Frankfurt am Main, no year (approx. 1987)
- ↑ Deutsche Bundesbahn, project group Hannover – Würzburg center of the Federal Railway Directorate Frankfurt (ed.): The new line Hannover – Würzburg. The Kassel – Fulda section , brochure (46 pages), as of October 1984, page 12
- ↑ Bundesbahndirektion Frankfurt (M), project group NBS Frankfurt am Main of the Bahnbauzentrale (publisher): New lines Hanover-Würzburg from Kassel to Fulda, Cologne - Rhine / Main in the directorate area . Leaflet with 12 pages (10x21 cm), Frankfurt am Main, no year (approx. 1984)