Ferdinand Leitner footbridge
Coordinates: 48 ° 46 ′ 55 " N , 9 ° 11 ′ 5" E
| Ferdinand Leitner footbridge | ||
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| use | footbridge | |
| Crossing of | Schiller Street | |
| place | Stuttgart | |
| construction | Cable-stayed bridge | |
| overall length | approx. 100 m | |
| width | 5.5 m | |
| Longest span | 92.6 m | |
| completion | 1961 | |
| planner | Leonhardt, Andrä and Partner | |
| location | ||
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The Ferdinand-Leitner-Steg (formerly Schillersteg ) is a pedestrian bridge in Stuttgart that crosses the nine-lane Schillerstraße and connects the palace gardens with the upper palace gardens. Its southern end is in the Upper Palace Garden near the theater . Its northern end forks into a footbridge to the sidewalk through the palace garden and a footbridge to the sidewalk towards the main station .
The bridge designed by the Stuttgart engineering office Leonhardt, Andrä und Partner is one of the first cable-stayed bridges .
history
The former Schillersteg was created in connection with the design of the palace gardens for the 1961 Federal Garden Show . In 1997 it was named after Ferdinand Leitner , who worked in Stuttgart as opera and general music director. In 2008 the bridge was extensively restored.
description
The 100-m-long bridge spans the Schillerstrasse with a 92.5 m long and 5.5 m wide steel - hollow box , the forked on the north side in two 3.4 m-wide parts. The very flat box girder is 50 cm high over its entire length. The steel box is internally stiffened at a distance of 2.4 m by lattice girders made of 24 mm thick round steel, welded airtight and not protected against corrosion on the inside.
The bridge deck, which is slightly curved in plan, ends at a short reinforced concrete ramp .
The entire bridge deck hangs on a pylon that stands freely in the fork of the northern parts of the bridge. The 23 m high pylon is an octagonal, hollow steel pillar, the cross section of which tapers from 1.22 m upwards to 0.56 m.
Three pairs of stay cables are stretched from the top of the pylon to the outer edges of the 63.3 m long main opening of the bridge deck over Schillerstrasse and two pairs of cables to the northern parts of the footbridge.
For the first time, parallel wire ropes were used for the stay cables, which are encased in a polyethylene pipe that was pressed with cement mortar to protect against corrosion.
The railings consist of vertical steel bars, which are arranged in groups of four bars with a slightly larger distance to the next group. The semi-oval handrail made of drawn steel, which is open in cross-section towards the bridge deck, originally had neon lighting behind a continuous plexiglass cover. However, it was prone to failure and no longer functional after a while. When the bridge was repaired in 2008, precautions were taken to install LED lighting.
Web links
- Rolf-Dieter Blumer, Karsten Preß: Sweeping across the road. The repair of the Ferdinand Leitner footbridge in Stuttgart . DOI In: Preservation of Monuments in Baden-Württemberg, 1-2010 , pp. 44–47
Individual evidence
- ↑ a b René Walther, Bernard Houriet, Walmar Isler, Pierre Moïa: Cable- stayed bridges . Revised edition and translation, Verlag Bau + Technik / Beton-Verlag, Düsseldorf 1994, ISBN 3-7640-0328-6 , p. 144