Abstract: The ability to continuously monitor the integrity of civilinfrastructure in real time offers the opportunity to reduce maintenance andinspection costs, while providing for increased safety to the public.Furthermore, after natural disasters, it is imperative that emergency facilitiesand evacuation routes, including bridges and highways, be assessed for safety.Indeed, the ASCE Vision for Civil Engineering in 2025 states engineers of thefuture will be “relying on and leveraging real-time access to living databases,sensors, diagnostic tools, and other advanced technologies to ensure informeddecisions are made.”
This seminar discusses recent advances inmonitoring of civil infrastructure at the University of Illinois atUrbana-Champaign. First, interdisciplinary efforts to create and deploywireless smart sensors will be introduced. Following an overview of thetechnical challenges encountered and the solutions developed, two full-scaledeployments will be presented. The first is for the Jindo Bridge, acable-stayed bridge in South Korea with a 344m main span. The seconddeployment is for the Dubai-I, a 250-m diameter Ferris wheel. Subsequently, research on the use of computer vision for monitoring of civilinfrastructure will be presented. Applications explored include crack detectionin concrete structures, automatic structural damage classification, structuralresponse monitoring, and motion magnification. Finally, the potential use ofexisting commercial UAVs and cameras to measure the displacement of therailroad bridges under in-service train loads is considered. These studiesdemonstrate the tremendous potential of structural health monitoring formanaging civil infrastructure on a national level.
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