Monitoring of historic masonry buildings via innovative sensors
Partners: ISTI-CNR (Mechanics of Materials and Structures Laboratory and Wireless Networks Laboratory), Osservatorio Sismologico di Arezzo (INGV)
Contact: Maria Girardi
Keywords: architectural heritage, monitoring, operational modal analysis, dynamic identification, numerical codes
The project focused on the long-term, continuous measurement of the ambient vibrations of age-old masonry structures.
The vibrations of the Clock Tower and the San Frediano belfry were monitored from November 2017 to March 2018 using high-sensitivity instrumentation. The measured vibration level was generally very low, since the structures lie in the middle of a limited traffic area. Nevertheless, the availability of two different types of highly sensitive and accurate instruments allowed to follow the dynamic behavior of the towers during the entire monitoring period, together with the variation over time of their dynamic properties, and has moreover provided cross-validation of the results.