Abstract
This paper describes how wireless technology was used in a structural health monitoring scheme to monitor the long-term performance of fiber reinforced polymer (FRP) composite bridge structures. The scheme was implemented on the Kings Stormwater Channel Bridge, located on a major state highway in California. The bridge was constructed using FRP composite girders and deck panels. The data collected by a comprehensive array of sensors are transmitted wirelessly, and processed in real-time remotely. Computer-based automated analysis algorithms process the incoming data to provide an assessment of structural response. Effects, due to time-based deterioration, and irregularities are determined using modal parameters, in terms of damage localization indices and an estimated damage severity. The results, made available via a web-based interface, enable appropriate action to be authorized for preliminary maintenance or emergency response prior to actual on-site inspection. This approach shows promise for monitoring and assessment of structural systems.
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