Chained hillside bridge
Coordinates: 50 ° 24 ′ 19 ″ N , 7 ° 27 ′ 49 ″ E
| Chained hillside bridge | ||
|---|---|---|
| use | Road bridge | |
| Convicted |
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| Crossing of | Kettiger Strasse / Weißenthurmer Strasse | |
| place | Andernach - Koblenz | |
| construction | Prestressed concrete - box girder bridge | |
| overall length | 510 m | |
| width | 18.4 m | |
| Number of openings | 13 | |
| Pillar spacing | 13 × 39.2 m | |
| start of building | 1959 | |
| completion | 1961 | |
| planner | Strabag , Gerd Lohmer | |
| location | ||
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The Kettiger Hangbrücke is a four-lane road bridge on the federal highway 9 between Andernach and Koblenz in the extension of the Andernach bypass. It crosses a shallow basin in which the Kettiger Strasse / Weißenthurmer Strasse is located.
It is named after the local community of Kettig , which is 1 km south on a slope gently sloping towards the Rhine.
The 509.60 m long prestressed concrete bridge is slightly curved in plan and has 13 fields with uniform pillar spacing of 39.20 m.
Its 18.14 m wide bridge panel is divided into 2 × 7.00 m for the lanes, 1.00 m for the central barrier and 1.57 m each for the side railings. The bridge panel is the cover plate of 2 single-cell box girders with an overall height of 2.10 m, which are arranged almost in the middle under the respective halves of the roadway. The octagonal pillars under the box girders have a diameter of 1.80 m and a lateral distance of 7.20 m from each other.
In the structure planned by Strabag with architectural advice from Gerd Lohmer and erected between 1959 and 1961, a telescopic tower was used for the first time . It was divided into two leading front girders reaching over two fields and four scaffolding girders with the formwork for the two hollow boxes, which were slightly longer than one field (two-phase advancing scaffold). In the not far away Krahnenberg Bridge , planned by Hans Wittfoht and Polensky & Zöllner from 1961 to 1964 , the construction was further developed into a single-phase telescopic scaffold without special front girders, which served as a model for numerous other variants.
literature
- Hans Gass: The bridge on the Kettiger slope. In: Bautechnik 1960, pp. 445–453
Individual evidence
- ↑ Erwin Beyer, H. Thul: Hochstraßen. Planning, execution, examples . 2nd Edition. Beton-Verlag, Düsseldorf 1967.
- ^ Christian Menn: Reinforced concrete bridges . Springer-Verlag, Vienna, New York 1986, ISBN 3-211-81936-3 , p. 36