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A platform for research: civil engineering, architecture and urbanism
The Genoa San Giorgio Bridge Fiber-Optic Structural Monitoring System
A fiber-optic based structural monitoring system has been designed and deployed by CETENA of the Fincantieri Group on the new Genoa San Giorgio bridge, which replaced the collapsed Polcevera viaduct. A network of more than 240 sensors, most of them based on fiber-optic technology, has been installed to follow movements, vibrations and operating conditions of the bridge deck and piles in real-time. First of all, the monitoring solution aims to keep under control the loads and deformations of the structure, for verifying that its behavior lies within the boundaries of the project design. Both the bridge displacement and strain (due to the temperature changes and the passage of vehicles) and the piles’ tilt are recorded and analyzed to relate the actual behavior of the structure. In addition, several accelerometers are distributed along the bridge deck to check the bridge vibrations with Operational Modal Analysis (OMA). OMA allows to reconstruct the real structural dynamic behavior in real-time and compare it to the project design one, depending on the boundary conditions. At the same time, a database on both the structure behavior and the surrounding conditions is being built for properly and efficiently planning maintenance activities in the medium and long term. In summary, the fiber-optic structural monitoring system is the solution chosen by the owner for both efficiently operate the infrastructure and assuring the safety of people over many decades.
The Genoa San Giorgio Bridge Fiber-Optic Structural Monitoring System
A fiber-optic based structural monitoring system has been designed and deployed by CETENA of the Fincantieri Group on the new Genoa San Giorgio bridge, which replaced the collapsed Polcevera viaduct. A network of more than 240 sensors, most of them based on fiber-optic technology, has been installed to follow movements, vibrations and operating conditions of the bridge deck and piles in real-time. First of all, the monitoring solution aims to keep under control the loads and deformations of the structure, for verifying that its behavior lies within the boundaries of the project design. Both the bridge displacement and strain (due to the temperature changes and the passage of vehicles) and the piles’ tilt are recorded and analyzed to relate the actual behavior of the structure. In addition, several accelerometers are distributed along the bridge deck to check the bridge vibrations with Operational Modal Analysis (OMA). OMA allows to reconstruct the real structural dynamic behavior in real-time and compare it to the project design one, depending on the boundary conditions. At the same time, a database on both the structure behavior and the surrounding conditions is being built for properly and efficiently planning maintenance activities in the medium and long term. In summary, the fiber-optic structural monitoring system is the solution chosen by the owner for both efficiently operate the infrastructure and assuring the safety of people over many decades.
The Genoa San Giorgio Bridge Fiber-Optic Structural Monitoring System
Lecture Notes in Civil Engineering
Rizzo, Piervincenzo (editor) / Milazzo, Alberto (editor) / Piastra, Federica (author) / Cusano, Giovanni (author) / Ventura, Giulio (author) / Griffoni, Bruno (author) / Stay, Justin (author) / Costantini, Daniele (author)
European Workshop on Structural Health Monitoring ; 2022 ; Palermo, Italy
2022-06-16
9 pages
Article/Chapter (Book)
Electronic Resource
English
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