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  • CORGO VIADUCT

    PORTUGAL (MSS M60-I) 2011-2012

Corgo Viaduct

PORTUGAL (M60-I) 2011-2012

Location
Vila Real, Portugal
Year
2011-2012
Project
Type: Eastern Viaduct: total length of 1278 m (4192 ft.)
Typical Span: 60 m (196 ft.)
Deck width: 25 m (82 ft.)
Typical Cross Section: Box
Equipment features
Model: MSS M60-I
Construction Type: In place
Type: Underslung
OPS System: Integrated
Performance: 10-day cycles
Challenges
Piers with height exceeding 100m (328 ft.), the highest with 114m (374 ft.)
The machine to be used would have to be autonomous and the supply of materials would have to be done using the previously built deck
Very strong winds
The building consortium companies didn’t wanted to invest in equipment
Solutions
Pier Bracket Assembly System
Integrated cranes
Construction in three stages: Box Girder with Movable Scaffolding System (Stage I y II); Extension using cantilever machine (Stage III)
Supply of materials carried out via the already built deck
Results
Construction period: 63 weeks
Fast construction (a cycle of 7 days/span was reached)
Industrialised and operationally facilitated construction
Very high construction quality due to the reduction and control of deformations
OPS System allowed the casting of the box in two phases without any danger of cracking
Rental Solution enabled the Consortium to pay only what was used in this work
Scientific papers about this project here
Video