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Rion Antirion Bridge

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Asima Azmat

on 15 January 2013

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Transcript of Rion Antirion Bridge

Gulf of Corinth, Greece Conception SCOPE DESIGN EXECUTION August 8th 2004- Olympic Flame passed over the bridge
August 12th 2004- Bridge was opened to traffic
December 2039- The end of concession Harilaos Trikoupis
Conceived in 1889 as rail link
Been delayed for almost a century BEAM PROJECT INTEGRATION & DELIVERY Rion Antirion Bridge Traveling from land was 150 miles east Fairy Boats took 45 minutes Initiation 1980-Greek State decided to invite tenders.
1987-A new international tender call for the design.
1991-Greek state decided to invite tenders for the third time.
1993-A contest, call for design was carried out. Project Charter January 3rd 1996 contract for the project was signed between the Greek state and Gefyra SA. Principal Stakeholders Promoter- Greek State
Financier- EU/EIB/Greek State
Guarantors- Bank of Tokyo Mitsubishi & America etc
Concessionaire- Gefyra SA
Users- General Public ARCH SUSPENSION CABLE STAYED PORTFOLIO The organizational Structure: Projectized.
The Greek company Gefyra S.A. was formed in 1995 by VINCI from France and six Greek contractors for the sole aim of entering with the Greek State into the Concession Contract for the Rion-Antirion bridge. 17 December 1997 the final contracts were signed.
24 December 1997 was the effective date of the Concession Agreement.
The project embodied the DBFO method, with Gefyra SA as concessionaire.
Gefyra SA is responsible for the design, construction, financing, maintenance and operation of the bridge during the 42-year concession period. Drastically decrease travel time.
Decrease the total cost of crossing the straits.
Ensure Fast and safe movement of people and goods. Provide a segment of PATHE TEN-T (priority axis 7) to connect PATHE with Egnatia Road.
Enhance the country's connection to Italy and the rest of Western Europe through the ports of Patras and Igoumenitsa Contribute to the economic and cultural development of the geographical areas of Peloponnese.
Provide basis for the housing development and the production restructuring of the wider area around the bridge. Diminish the pollution
Reduce congestion in ports of Rion and Antirion
Make ports of Rion and Antirion more active "Hundreds of peers would have stopped major ship traffic." "It would require four times larger arch ever built before." "Very expensive and Greek state was not able to afford one at that time." "Sea bed was too soft for bridge's foundation." Challenges Water too deep, up to 65m
Sea bed too soft, up to 500m
Earth quake fault line passing through middle "Design looks deceptively simple" 368 Cables
4 Conical Towers
Yellow Ribbon of Roadway
At Night it Glows Structure of Contractual Relationship Land Acquisition Predicted Costs Project Schedule PLAN IMPROVEMENT Deck Tubes Installation GPS
Guide Tube
Hammer Head
newly invented machine SCHEDULE MANAGEMENT Deliver Mega Structure in 5 years or Contractors would have to pay huge financial penalties. Building Foundations They were built at shore & weighed 4m lb at that time.
They had 32 air compartments & could float.
To put them in water it required 2500 horsepower. PROCUREMENT CONTROL To put these foundations in water ICEBREAKERS were brought from Norway. Building Towers 207ft tall tower under water HUMAN RESOURCE MANAGEMENT As tower was building up it was sinking into water so they had to put a very calculated amount of humane resources into the project. CHANGE MANAGEMENT Slight accidental displacement of first tower:
Rise the tower and place it again
Recalculated and adjusted remaining 3 towers Deck Installation Made hollow
Water detecting devices
Accelerometers installed
Foundation not connected to ground RISK MANAGEMENT To risk of earth quake was managed in this step by not connecting whole tower to ground & making head stronger & heavier enough to bear it. Pylon Legs Built to support pylon head so that it can hold Roadway SAFETY MEASUREMENTS For safety purposes all four pylon legs were connected to each other so they don't fall into the sea or break, Pylon Head 100ft high
One of strongest parts of bridge
It had to support steel cables. Installation of Cables 368 Steels Cables Roadways 1.3 miles long
made in several parts QUALITY MANAGEMENT This aspect was kept in view throughout the project. Quality was checked as well as maintained at every point. COMMUNICATION MANAGEMENT At this point project was divided into different construction sites so communication was a major management issue. ANY QUESTIONS Presented By:
Asima Azmat 2010-CS-25
Iqra Khan 2010-CS-09 Key Factors: Surveys:
Land Surveys, Feasibility reports, Sea bed Analysis, soil analysis
Alternatives Identifications:
The potential of rail link was examined Project Director: Jean-Paul Teyssandier- VINCI ACTIVITY LIST: Tubes Installation
Foundation Building
Building Towers
Deck Installation
Pylon Legs
Pylon Head
Installing Cables
Roadways Technique Used: FAST TRACKING Techniques Used: Workshops- Special workshops related to bridge construction, GPS navigation system
Special Technicians- Alpinists from France Further Techniques Used: Expert judgments- Seismic experts
Contingent Response Strategies- For risk of earthquake during construction Cost of Quality: At every point quality was not compromised for cost Communication Method: Push Communication Technology Used: Wireless Communication
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