Major threats to bridges primarily consist of the aging of the structural elements, earthquake-induced shaking and standing waves\r\ngenerated by windstorms. The necessity of information on the state of health of structures in real-time, allowing for timely\r\nwarnings in the case of damaging events, requires structural health monitoring (SHM) systems that allow the risks of these\r\nthreats to be mitigated. Here we present the results of a short-duration experiment carried out with low-cost wireless instruments\r\nfor monitoring the vibration characteristics and dynamic properties of a strategic civil infrastructure, the Adolphe Bridge in\r\nLuxembourg City. The Adolphe Bridge is a masonry arch construction dating from 1903 and will undergo major renovation\r\nworks in the upcoming years. Our experiment shows that a network of these wireless sensing units is well suited to monitor the\r\nvibration characteristics of such a historical arch bridge and hence represents a low-cost and efficient solution for SHM.
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