The structures damage conditions assessment requires numerous precautions to ensure the safety of people during site visits\r\nand inspections. Among several methods providing useful information about the conservation status of the structures, dynamic\r\nmonitoring techniques are suitable to retrieve the global behavior of the buildings. The anomalous features diagnosis of the\r\nstructural dynamic response is an index of alterations of the material state and, in the worst cases, is related to the presence of\r\ndamaged structural elements. This paper proposes the use of remote control systems for the structural evaluation of the damage\r\nstate of buildings and describes the results achieved in an interesting application: the experimental dynamic analysis carried out\r\non the inaccessible damaged bell tower of the Church of Santi Giacomo and Filippo in Mirandola (Italy). The study is based on\r\nobservations performed using the IBIS-S ground-based radar interferometer to remotely measure the displacements of several\r\nelements of the building above 0.01mm amplitude. This totally noninvasive and nondestructive approach has proved to be reliably\r\nimplemented as a useful method to structural healthmonitoring procedures and especially for extensive and fast inspection analyses\r\naiming at the first evaluation of the damage level and the soundness of slender buildings after earthquakes.
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