Journal
JOURNAL OF CULTURAL HERITAGE
Volume 15, Issue 3, Pages 275-282Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.culher.2013.07.006
Keywords
Remote sensing; Microwave interferometry; Laser scanning techniques; Heritage conservation; FE modeling; Dynamic identification
Categories
Funding
- Fondazione Monte dei Paschi di Siena
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The paper presents a synergic and multidisciplinary approach where laser scanner survey, radar interferometric monitoring and finite element (FE) numerical modelling are used for expeditious and no-contact dynamic identification of monumental masonry towers. The methodology is applied to a real case of great historical interest: the Torre del Mangia (Mangia's tower) in Siena (Italy). The tower geometry was acquired through Terrestrial Laser Scanning (TLS) techniques. The tower oscillations were detected using an interferometric radar in Piazza del Campo, the square facing the Mangia's Tower, along three alignments, and movement of the structure at several heights were recorded. A FE model, built on the basis of the geometry acquired through the TLS, was used to interpret and verify the physical meaning of the experimental results. Through the discussion of the case study, the paper shows that the proposed approach can be considered as an effective and expeditious method for assessing the dynamic behavior of monumental buildings (and to plan interventions) on territorial scale. (C) 2013 Elsevier Masson SAS. All rights reserved.
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