Journal
PROCEEDINGS OF 2022 IEEE INTERNATIONAL WORKSHOP ON METROLOGY FOR LIVING ENVIRONMENT (IEEE METROLIVEN 2022)
Volume -, Issue -, Pages 159-163Publisher
IEEE
DOI: 10.1109/MetroLivEnv54405.2022.9826977
Keywords
masonry bridges; structural health monitoring; interferometric radar; dynamic identification; ambient vibration testing
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This paper explores the use of radar interferometry technique in ambient vibration tests on large and massive historical masonry bridges. A comparison is made between the results obtained from the radar interferometry technique and the traditional accelerometric technique, highlighting the effectiveness of radar interferometry in identifying the first natural frequencies of massive masonry bridges.
In this paper, we study the capability of the radar interferometry technique for the ambient vibration tests on very large and massive historical masonry bridges. This innovative contactless technique has been successfully exploited in several works for dynamic identification of concrete and, sometimes, of masonry slender structures, but has been rarely used for large mass masonry constructions. To this aim, we have performed a campaign of ambient vibration tests on a masonry bridge located in Polignano a Mare, a town of southern Italy, using both the ground-based radar interferometry and the traditional accelerometric technique. The comparison of the results obtained from the two experimental techniques highlighted the effectiveness of the radar interferometry in order to identify at least the first natural frequencies of a massive masonry bridge.
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