VÖEST bridge
Coordinates: 48 ° 19 ′ 10 ″ N , 14 ° 17 ′ 56 ″ E
| VÖEST bridge | ||
|---|---|---|
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| Convicted | Mühlkreis motorway , bike path | |
| Subjugated | Danube | |
| place | Linz | |
| construction | Cable-stayed bridge | |
| overall length | 407 m | |
| width | 35 m | |
| Number of openings | 4th | |
| Longest span | 215 m | |
| Construction height | 4 m | |
| Clear height | 8 m above sea level hsW | |
| start of building | 1969 | |
| completion | 1972 | |
| planner | VÖEST | |
| location | ||
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The VÖEST Bridge (also called VOEST Bridge, Voest Bridge ) is one of the three Linz road bridges over the Danube . As part of the A 7 Mühlkreis motorway , it is a motorway bridge, but also serves inner-city traffic and has a path for cyclists on both sides. The bridge is 407 m long and 34.86 m wide. The main opening has a span of 215 m, the secondary openings have spans of 72 + 60 + 60 m.
It was built between 1969 and 1972. It is named after the Linz steel group VÖEST .
It is the first cable-stayed bridge that was built in Austria. The Mayreder, Krauss & Co. working group and E. Hamberger, both from Linz, built the substructure. The superstructure was carried out by the Vereinigte Österreichische Eisen- und Stahlwerke Aktiengesellschaft, Linz (VÖEST); who had also planned the bridge.
Building
The bridge has 6 lanes. Two of these per direction of travel are part of the one-way lane. One lane each is used for entry or exit for the junctions north ( Linz-Urfahr junction ) and south ( Linz-Hafenstrasse ) of the bridge. In addition, there is a structurally separated bicycle lane on both outer sides.
A striking element of the bridge is a 69.26 m high pylon , which stands in the middle of the longitudinal axis of the bridge. Three harp-shaped steel cables are attached to it to the north and south, which carry the roadway. In order to provide sufficient space for the pylon and the anchorages of the stay cables, a 3.50 m wide median separates the two directional lanes.
The 34.86 m wide deck girder consists of a continuous steel structure with an orthotropic plate . It is divided into 2 × 3 lanes, each 3.5 m wide, a total of 4 side lanes with a width of 1 m on both sides of each directional lane and the two cycle paths, each with a width of 3.20 m.
The deck girder has a construction height of 4 m and a clearance height of 8 m above the highest navigable water level on the Danube.
Expansion in 2018/2020 and renovation in 2020/2023
The bridge, which is now over 40 years old, will have to be renovated in the near future. Since the VOEST bridge is one of the busiest roads, it will also be relieved by two bypasses. Once these have been built, traffic will first be diverted to them and the bridge will be renovated. After that, the main bridge is only intended for the motorway and the bypasses for inner-city traffic. A footpath and cycle path will also be built on the outside of both bypass bridges. The working group Bernard Ingenieure (Hall, Tyrol) - RWT plus ZT GmbH (Vienna) - SOLID architecture ZT GmbH (Vienna) is the winner of the design competition organized by ASFINAG . The construction of the bypass structures began in spring 2018, and completion is scheduled for June 2020.
Then the main bridge will be renovated and the final traffic opening is planned for autumn 2023.
The main bridge from around 1980 has its own so a total of 2 parallel structures for each direction of travel. There is only one bridge pillar in the river, clearly to the left of the middle of the river. These structures span a wider floodplain on the left bank than on the right bank. Next to the left bank there is a pillar on the land. The pillar in the river carries a pylon that diverts 3 ropes or pairs of ropes at 3 heights, which lead at a uniform angle, i.e. in parallel groups, to load-bearing points on the supporting structures.
The bypass bridges built in 2018/2020 each have two pillars in the river. The left pillars are aligned with the only river pillar so far and do not carry a pylon. The orographic right pillars are divided in a ratio of 30:40:30. The fairway for large ships runs between these pairs of piers.
The steel box structures of the bypass bridge were produced on land on the left bank nearby and transported on land with a self-propelled vehicle. Two self-propelled co-ordinated self-propelled vehicles with a lifting frame were used for lifting from land. For lifting in over water, about 10 m above the water level, the lifting frame stood on two self-propelled vehicles and these on a double bark. The companies Donges SteelTec , Darmstadt and Sarens Schwertransporte, Belgium participated.
Web links
- VÖEST bridge. In: Structurae
- Two new Danube bridges for more safety and less traffic jams: Expansion of the Voest Bridge Linz last updated July 15, 2019, accessed November 13, 2019.
Individual evidence
- ↑ L. Burgholzer, E. Garn, O. Schimetta: The 2nd Danube Bridge Linz. In: Steel construction , November 1973
- ↑ Sketch of the A7-Voest bridge inventory ( memento of the original from July 25, 2014 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. in "Bypass" - bridges Linz to Voestbrücke over the Danube . Project Schlaich Bergermann and partners in the implementation competition for the bypass bridge (PDF; 5.8 MB)
- ^ Rehabilitation of the VÖEST bridge
- ↑ Completion expected June 2020 Martin Pöcheim, blog.asfinag.at, November 11, 2019, accessed November 13, 2019.
- ↑ Security expansion Voestbrücke - construction of the bypasses , Asfinag.at, accessed on March 26, 2019
- ↑ voestbrücke bypasses linzer bridges trilogy, youtube.com, July 5, 2019, accessed November 13, 2019.
- ↑ voestbrücke bypasses linzer bridges trilogy, youtube.com, June 21, 2019, accessed November 13, 2019. - Swim-in and hub.
