Léopold-Sédar-Senghor walkway

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Coordinates: 48 ° 51 ′ 43 "  N , 2 ° 19 ′ 29"  E

Léopold-Sédar-Senghor walkway
Léopold-Sédar-Senghor walkway
use footbridge
Crossing of His
place Paris
construction Arch bridge
overall length 140 m
width 11-15 m
Number of openings a
Longest span 106 m
start of building 1997
completion 1999
planner Marc Mimram
location
Passerelle Léopold-Sédar-Senghor (Paris)
Léopold-Sédar-Senghor walkway
P. Léopold-Sédar-Senghor2.jpg
p1

The Passerelle Léopold-Sédar-Senghor , until October 2006 the Passerelle Solférino , is a pedestrian bridge in Paris over the Seine about 100 m below the Musée d'Orsay .

Surname

The bridge was named after Léopold Sédar Senghor on October 9, 2006, the centenary of his birth . Its previous name was a reminder of the victory of France and the Kingdom of Sardinia against the Austrian Empire in the Battle of Solferino in 1859.

location

The Passerelle Léopold-Sédar-Senghor connects the Quai Anatole France on the left bank of the Seine with the Quai des Tuileries and the Jardin des Tuileries on the right bank. The rue de Solférino lies in the extension of its longitudinal axis on the left bank and the Allée de Castiglione in the Jardin des Tuileries.

The closest bridges are the Pont Royal upstream and the Pont de la Concorde downstream , both around 400 m away.

description

The Passerelle Léopold-Sédar-Senghor essentially consists of a wide arch between the banks and a flatter arch above it, which connects the high banks and thus also bridges the port areas of Port de Solférino on the left and Port des Tuileries on the right bank. The upper arch is covered with a stepless surface made of strong wooden boards. The stairs on the lower arch pierce the upper arch in two long openings and unite in the middle of the bridge with the deck of the upper arch to form a single surface. As a result, passers-by can get from one high bank to the other high bank as well as to the lower lying areas directly on the river or switch from one bank area to the other bank area. The Jardin des Tuileries can be reached either from the upper arch, where the five-lane Quai des Tuileries has to be crossed, or through a tunnel through which one can access the park directly from the lower arch and the bank area.

P. Léopold-Sédar-Senghor3.JPG

The lower arch has a span of 106 m and is supported by large concrete abutments in the subsoil, of which only connection blocks protrude from the bank edge. Its load-bearing elements are two steel arch girders, each with two ribs made of steel strips arranged one above the other, which are formed into a Vierendeel girder by means of rods inserted at right angles . At the abutments, these ribs have a construction height of 125 cm, which decreases to 55 cm towards the middle. Every third of the bars is reinforced because it supports a support of the upper arch. These ribs are arranged directly next to one another on the abutments, but their distance increases significantly towards the middle of the bridge.

V-shaped supports stand on the pairs of ribs with the help of base elements and support the four longitudinal beams of the upper bridge deck. The width of the base follows the increasing distance between the ribs. As the ribs approach the upper arch more and more towards the middle, the V-shaped supports spread at the same time.

The upper bridge deck is 140 m long, as it also crosses the two port areas. Due to the arrangement of the arches, its floor plan is not rectangular, but slightly bulged; its width increases from 11 m at the edge to 15 m in the middle. It essentially consists of four longitudinal and numerous cross members. The bridge deck and the stairs are covered with boards made of Brazilian Ipe wood, which was also used on the forecourt and the stairs of the new building of the Bibliothèque nationale de France (BnF - Site François Mitterrand). Here as there, the slip resistance had to be improved by subsequently inserted strips. To reduce unpleasant perceived vibrations also were damper installed. The railings are also hung here with the inevitable love locks .

history

Pont de Solferino (1883)

The first bridge was a cast iron road bridge with three openings made by Emperor Napoleon III. Opened in 1861 and named Pont de Solférino . She did her service for almost a hundred years.

In 1960, weakened by numerous collisions between the barges, it had to be demolished and replaced by the Passerelle Solférino , a simple steel footbridge with two pillars, which - intended as a temporary measure - was not removed until 1992. Both bridges connected the high banks, but not the port areas directly on the water.

In 1992 Marc Mimram, a French engineer and architect, won the competition to design the bridge. After the planning period, the actual construction work took place in the years 1997 to 1999. The steel construction work was carried out by the company Eiffel Constructions métalliques.

Marc Mimram received the Prix ​​de l'Équerre d'argent in 1999 for the bridge.

See also

Web links

Commons : Passerelle Léopold-Sédar-Senghor  - Collection of images, videos and audio files
File category Files: Passerelle Léopold-Sédar-Senghor  - local collection of images and media files

Individual evidence

  1. ↑ The original bridge was called Pont de Solférino , both Passerelle de Solférino and Passerelle Solférino were used for the pedestrian bridges .
  2. ↑ Passerelle Solférino à Paris on Marc Mimram's website
  3. ^ Hugues Vernet: A critical Analysis of the Passerelle Leopold Sedar Senghor, Paris. Proceedings of Bridge Engineering 2 Conference 2011, April 2010, University of Bath, Bath, UK (PDF, 1.2 MB)
  4. ↑ a b La Passerelle Solférino en lames de terrasse Ipé on terrace Bois.com
  5. ^ Passerelle de Solferino in: LCPC - Bridges of Paris on LCPC, now Ifsttar
  6. ↑ a b Passerelle Léopold Sédar Senghor. on Planète TP
  7. ^ Ingénieur des ponts et chaussées, architecte DPLG = architecte diplômé par le gouvernement
  8. ↑ 1999 Passerelle Solférino on Le Moniteur.fr (restricted access)