2013-3-17
位於法國西南部城市波爾多加隆河上的「傑克．沙邦．德瑪」大橋16日正式啟用，這座橋造價1.6億歐元（約台幣62億元），也是全歐最高的垂直升降橋，支撐升降橋面的4座塔高度為77公尺。
vertical lift bridges
Vertical lift bridges are an uncommon solution to spanning a river used by large, or tall ships. As well as the Pont Chaban-Delmas, there is a vertical lift bridge at Rouen, and at Sacremento, California. There used to be one for a while at Rochefort.
Vertical lift bridges have a lifting centre section, so that large and tall ships may pass near to the city’s centre. It takes 12 minutes for the bridge to be either raised or lowered.
Structural statistics of the Pont Chaban-Delmas
- Roadway length 433 m
- Roadbed width: 43 m
Two lanes for public transport (trams),
four car lanes
two pedestrian and cycle tracks
- Three steel road bed sections (fixed: 2 x 150m, lifting: 1 x 120m) will be made by Cimolai in Italy, close to Venice, and floated through the Mediterranean and the Atlantic to reach the Garonne river.
- Length of mobile, lifting section: 117 m
- Navigable channel width: 106 m
- Pylon height: 77 m
- Height of raised section above water when lifted: 53 m
- Weight of liftable section: 2,600 tonnes
- Time to raise roadway: 12 minutes
- Predicted number of lifts in a year: 60
- Protective bases, that enclose the lifting mechanisms: 44m by 18m, 16.5m high, about 5,000 tonnes weight
- First stone laid: 9 December 2009, near avenue Lucien Faure
- Bases and protective island for pylons: to be towed into position, then sunk: June 2010 for the left bank and January 2011 for the right bank
- Pylons to be erected, access roads, lifting mechanism: 2011 to summer 2012
- Installation of mobile section: summer 2012
- Works to be completed: end of 2012
- Workforce: between 800 and 900. A list of all those involved is being drawn up and will slid in amongst one of the piles.
- Designers: Egis-JMI,
Lavigne & Cheron Architects, and Hardesty & Hanover
Thomas Lavigne is the son of Charles Lavigne who designed both the Pont de Normandie and the Pont Ile de Re.
- Consultant engineer: Michel Virlogeux
- Main constructor: Vinci Construction. On 17/3/2013, responsibility for running the bridge will be passed to Eiffage.
- Overall cost: 145,8 million euro - City of Bordeaux: 94.27M €, State: 18.29M €, region: 15.24M €, département: 18M €
- Annual maintenance budget: 0.5M €
