Construcción de puente izable en Francia

1. 2013
Bridge
Jacques-Chaban-Delmas
technical
data 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 section
5 travées
including 1 lifting section
106 m
width of navigable passage
53 m
air draft beneath the lifted section
60predicted number of lifts in a year
11minutes
time to raise roadway (and to lower)
2 x 2car lanes
2dedicated public
transport lanes
2lanes
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
Bridge’s 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 bridge’s building and living process and
to share it all with you on the Internet : enjoy !
Left bank - Bacalan
Longitudinal section and structural outline
scale 1:400
Right Bank - Brazza

2. 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

3. Step 1
The jetties
November 2009 and October 2010: construction of
the jetties on the right bank
October 2010: construction of the jetties on the left
bank
Step 2
Prefabrication of base sections
and cutwaters
November 2009:
construction in the Bassens drydocks
Step 3
Pillar foundations and cutwaters towed
into place and anchored
June 2010 right bank: structural elements towed into
place then driven into the river bed
March 2011 left bank: same process repeated
Step 4
Foundations laid, tower cranes
mounted; construction of the pillars
which will hold the fixed deck
with the help of cofferdams
Mid 2010 to mid-2011
Cross section and foundation
of the towers
Step 5
Constructing and installing
the fixed deck
Summer 2010: preparation for the final assembly
of the fixed deck was performed in Italy by Cimolaï
Company (the main framework is composed of three
steel beams), including the pedestrian sections
July 2011: the parts which make up the fixed deck
arrived via maritime freight, and were assembled on
the right bank
December 2011: left bank section of the fixed deck laid
Step 6
Construction of the pillars and concrete
reinforcement of the fixed deck
2011: the four towers were cast on site using
formwork moulds.
Step 7
Installation of the lifting mechanism
inside the towers; construction
of the lifting section; dismantling
of the access jetties
2012
Step 8
Installation of the lifting section
23 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 shaft
Disabled access
Guard rail
Glass casing
1500
1200
1000
C
C
A A
Lift shaft
Pulley for the suspension cable which
lifts 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
16900
Bedding thickness 0.60 m
34.00 m x 114.00 m
3700
200150020005800470050025002300600
150
350

4. 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
Communauté urbaine
de Bordeaux
direction des Grands travaux
et des Investissements
de déplacement
direction de la Voirie
service des Ouvrages d’art
Design and construction
consortium
Vinci 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
Cimolaï, 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 Qualité
External checks
SNCF - Département
des Ouvrages d’Art
Lighting design
Y. Kersalé
Lighting
Citeos
Lifting system operator
Eiffage Construction Métallique
Communauté urbaine
de Bordeaux
05 56 99 84 84
Graphic Design
Le Big, in partnership
with the Cub’s
Communications Department
Text
Cub
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 information
www.pontchabandelmas.lacub.fr
Cap Sciences’ observation kiosk
Hangar 20 - Quai de Bacalan 33300 Bordeaux
tél. +335 56 01 07 07
www.cap-sciences.net