Geocomp delivers structural health monitoring solution for 100-year service life bridge
10/03/2021
Geocomp has announced that the company has provided what it claims is the largest and most sophisticated structural health monitoring (SHM) system ever deployed on a bridge structure in the USA on the new Governor Mario M Cuomo Bridge in the state of New York.Providing critical information used to proactively make maintenance and asset management decisions, as well as preemptively mitigating risks to the bridge, Geocomp’s iSite® is a world-class structural monitoring software platform that collects and manages 1 GB of new data each day to assess bridge performance in real time, including graphical display of nearly 1000 measurements, live calculations and reports. Intelligent data reduction algorithms immediately show the effects of unusual loads and cumulative performance. The system consists of 130 Geocomp high-speed data acquisition units (iSiteHS), 12 data loggers for weather and corrosion measurements, four fibre-optic interrogators and 15 Global Positioning System (GPS) receivers. All data are time synchronised within 3 ms. Short- and long-term behaviour can be seen from easy-to-read statistical summaries, data analysis reports and measurement correlations. The collected data are disseminated in a cyber-secured network. The system additionally sends live alerts to key personnel concerning any significant changes as well as any potential impacts on the structure.
Commenting on the SHM implementation on this project of massive scale, Dr W Allen Marr PE PhD NAE explained: “Providing a fully integrated and forward-thinking solution that leverages Geocomp’s state-of-the-art software, monitoring equipment and instrumentation expertise enables bridge engineers to make decisions related to operation, inspection, maintenance and asset management for the service life of the bridge with real-time data.”
Geocomp worked with the bridge and system designers HDR, COWI and the owner, NY State Thruway Authority, to finalise the design of an SHM system that would serve the objective to help ensure a 100-year design life for the new bridge.
