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2013Bridge
Jacques-Chaban-Delmas technicaldata sheet
Why build a vertical-lift bridge in the centre of the city ?
Bridge specifications
Connecting the boulevards on either side of the river. Providing
an impetus for new urban development projects on the banks of the
Garonne. Ensuring that the river remains navigable right into the
historic centre of Bordeaux, the Port de la Lune. Integrating the
architectural and technical project into the urban environment,
landscape and heritage. The dimension and design of the bridge
allow it to handle different transport systems: Bus, Tram, Train.
The constraints and environmental imperatives revealed by impact
studies.
433 m roadway length
117 m length of mobile, lifting section5 traves including 1
lifting section
106 m width of navigable passage
53 m air draft beneath the lifted section
60 predicted number of lifts in a year
11 minutes time to raise roadway (and to lower)
2 x 2 car lanes 2 dedicated public transport lanes
2 lanes for pedestrians, cycles and users with restricted
mobility
october 2009 Work begins
november 2009 Construction of the baseplates and cutwaters
begins in the Bassens dry docks
december 2009 Laying of the foundation stone
june 2010 - march 2011 Baseplates and cutwaters installed
2011 - summer 2012 Fixed sections of the deck laid
october 2012 Lifting section installed
16 mars 2013 Bridges inauguration
18 march 2013 Opening
Schedule
Live
In pictures !Many movies and photographic reports have shown the
lift-bridge called Jacques Chaban-Delmas all along its building
process. Find all of them on www.pontchabandelmas.lacub.fr. And get
to live the official opening highlights again. Or find out more
about the main building stages, as decribed throughout this
brochure, such as when the base and its upstream and downstream
dolphins were put into position, back in june 2010. You might also
have a look on an online movie about a 3D-navigation simulator,
designed with the help of the Pilotes de la Gironde navigators
association. And, last but not least, you may want to live through
the up and down movement of the bridge span, as if you were there,
thanks to a permanent webcam settled on the left bank of the
river.
Thus doing, La Cub intends to keep memory of the bridges
building and living process and to share it all with you on the
Internet : enjoy !
Left bank - Bacalan
Longitudinal section and structural outlinescale 1:400
Right Bank - Brazza
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Left bank Right bank
Left bank Right bank
Left bank Right bank
Left bank Right bank
Left bank Right bank
cutwater
pillar base
lifting section
fixed deck
Left bank Right bank
Pillar base Upstream cutwater
Downstream cutwater
Dry dock: Length:240m, Width 32m, Depth: 15m
Left bank Right bank
The site in 8 steps
Step 1 Step 2
Step 3 Step 4
Step 5
Step 7
Step 6
Step 8
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Step 1The jettiesNovember 2009 and October 2010: construction of
the jetties on the right bankOctober 2010: construction of the
jetties on the left bank
Step 2Prefabrication of base sections and cutwatersNovember
2009: construction in the Bassens drydocks
Step 3Pillar foundations and cutwaters towed into place and
anchoredJune 2010 right bank: structural elements towed into place
then driven into the river bedMarch 2011 left bank: same process
repeated
Step 4Foundations laid, tower cranes mounted; construction of
the pillars which will hold the fixed deck with the help of
cofferdamsMid 2010 to mid-2011
Cross section and foundation of the towers
Step 5Constructing and installing the fixed deckSummer 2010:
preparation for the final assembly of the fixed deck was performed
in Italy by Cimola Company (the main framework is composed of three
steel beams), including the pedestrian sectionsJuly 2011: the parts
which make up the fixed deck arrived via maritime freight, and were
assembled on the right bankDecember 2011: left bank section of the
fixed deck laid
Step 6Construction of the pillars and concrete reinforcement of
the fixed deck2011: the four towers were cast on site using
formwork moulds.
Step 7Installation of the lifting mechanism inside the towers;
construction of the lifting section; dismantling of the access
jetties2012
Step 8Installation of the lifting section23 october 2012
Navigation simulator
From March to June 2010, tests were conducted using a 3D
simulator in order to analyse and optimise navigation around the
bridge. This research was conducted for the benefit of all those
who sail on the Garonne, allowing us to predict the navigation
conditions created by the new bridge.
Each base consists of 20 foundation stakes of 1600 mm diameter
poured directly into metal casing. The middle pillar on the right
bank sits on 25 steel stakes. The left bank pillar is based on a
shallow foundation which sits atop a bed of marl mudstone. The
abutments on the right and left banks are founded on stakes housed
in metal casing. The left bank abutment is founded on 30 foundation
stakes, each 800 mm in diameter and cased in metal. The right bank
abutment is founded on 13 foundation stakes, also 800 mm in
diameter and cased in metal.
B B
C
C
Platform
Spiral staircase
Lift shaftDisabled access
Guard rail
Glass casing
1500
1200
1000
C
C
A A
Lift shaft
Pulley for the suspension cable whichlifts the central
section
Disabled access
2200
4400
6280
1830
Spiral staircase
Glass casing
Height 82m
2200
50
50
150
R1500
1000
0.000Z:
-11.100Z:
-27.000Z:
Top of the base +5,8 m
Height -5,2 m
Mechanism housing
Right bank -BrazzaLeft bank - Bacalan
1690
0
Bedding thickness 0.60 m34.00 m x 114.00 m
3700
200
1500
2000
5800
4700
500
2500
2300
600
150
350
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The mechanism and the base
17 / 06 / 10 Arrival of the first pillar base, right bank
Winch drum - NFM Factory, Creusot
The lifting section of the Chaban-Delmas bridge is an impressive
structure: 2750 tons of metal fitting together flawlessly!Achieving
this feat requires an elaborate elevator system, designed to use as
little energy as possible. In each of the four pylons of the
bridge, a cable system (connected one side to the span and the
other side to a heavy counterweight) winds on enormous pulleys
located in the upper reaches of the pylons. This mechanism is
operated from the control station on the right bank, driven by two
132 KW motors and winch systems housed in the base of the
bridge.The total weight of the counterweight is 2694 tons: 56 tons
less than the weight of the mobile section!Thus, in the down
position, the lifting section is held in place by this extra weight
known as the imbalance, by simple effect of gravity.
motor + winch
pulleys
counterweights
cables
Lifting section
A giant elevator
Project leaders
Commissioning authority
Communaut urbaine de Bordeaux
direction des Grands travaux et des Investissements de
dplacement
direction de la Voirie service des Ouvrages dart
Design and construction consortiumVinci construction (GTM Sud
Ouest TP GC)
Technical Design EGIS-Jean Muller International
Architecture and structures: Lavigne et Cheron Michel
Virlogeux
Glass Coveris
Concrete supplier Garandeau
Concrete reinforcement Cepaba
Lift design Hardesty & Hanover
Construction and installation of steel framework Cimola,
Sarens
Technical inspections Socotec
Topographical supervision Pedezert-Labeille
Diving (foundations) S. Romoeuf
Power supply Vinci Energie
Energy and information technology GTM Santerne
Automated systems Actemium
Telecom systems Axens
Underwater cables Cepeca
Health and safety GM Qualit
External checks SNCF - Dpartement des Ouvrages dArt
Lighting design Y. Kersal
Lighting Citeos
Lifting system operator Eiffage Construction Mtallique
Communaut urbaine de Bordeaux
05 56 99 84 84
Graphic Design Le Big, in partnership
with the Cubs Communications Department
TextCub
technical data sheet for the Chaban-Delmas Bridge
Drum
Downstream column
Upstream column
Base P3
Right bank Bastide
Secondary reducer
Motors and primary reducer
Secondary reducer
Drum
River Garonne
Further informationwww.pontchabandelmas.lacub.fr
Cap Sciences observation kioskHangar 20 - Quai de Bacalan 33300
Bordeaux tl. +335 56 01 07 07 www.cap-sciences.net
