Long-Term Dynamic Monitoring of Medieval Masonry Towers
The aim of the paper is to present and discuss the results of an ambient vibration monitoring campaign conducted in the old town of Lucca, over the period 2015–2018. Despite the low level of the ambient vibrations in the historic center, using high-sensitivity instrumentation allowed the authors to...
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2020-02-01
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doaj-66bafbac70c943d09b02a4c2e83ce1262020-11-25T02:18:34ZengFrontiers Media S.A.Frontiers in Built Environment2297-33622020-02-01610.3389/fbuil.2020.00009515219Long-Term Dynamic Monitoring of Medieval Masonry TowersRiccardo Mario Azzara0Maria Girardi1Valerio Iafolla2Valerio Iafolla3Cristina Padovani4Daniele Pellegrini5Istituto Nazionale di Geofisica e Vulcanologia (INGV), Osservatorio Sismologico di Arezzo, Rome, ItalyInstitute of Information Science and Technologies “A. Faedo” ISTI-CNR, Pisa, ItalyNational Institute for Astrophysics, INAF-IAPS, Rome, ItalyAssist in Gravitation and Instrumentation, AGI srl, Rome, ItalyInstitute of Information Science and Technologies “A. Faedo” ISTI-CNR, Pisa, ItalyInstitute of Information Science and Technologies “A. Faedo” ISTI-CNR, Pisa, ItalyThe aim of the paper is to present and discuss the results of an ambient vibration monitoring campaign conducted in the old town of Lucca, over the period 2015–2018. Despite the low level of the ambient vibrations in the historic center, using high-sensitivity instrumentation allowed the authors to measure and study the dynamic behavior of two medieval masonry towers: the San Frediano belfry and the Clock Tower. The main results of the dynamic identification of the towers are summarized, together with the variation over time of their dynamic properties. Some insights on the towers' response to the anthropic activities in the historic center are also presented. Finally, a finite element simulation is performed with the aim of assessing the influence of temperature variations on the towers' natural frequencies; good agreement is found between numerical and experimental results. The paper provides the scientific and technical community with a detailed report on a singular experiment in the field of architectural heritage.https://www.frontiersin.org/article/10.3389/fbuil.2020.00009/fullmasonry towerslong-term monitoringvibration sourcesoperational modal analysisenvironmental effectsnumerical modeling |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Riccardo Mario Azzara Maria Girardi Valerio Iafolla Valerio Iafolla Cristina Padovani Daniele Pellegrini |
spellingShingle |
Riccardo Mario Azzara Maria Girardi Valerio Iafolla Valerio Iafolla Cristina Padovani Daniele Pellegrini Long-Term Dynamic Monitoring of Medieval Masonry Towers Frontiers in Built Environment masonry towers long-term monitoring vibration sources operational modal analysis environmental effects numerical modeling |
author_facet |
Riccardo Mario Azzara Maria Girardi Valerio Iafolla Valerio Iafolla Cristina Padovani Daniele Pellegrini |
author_sort |
Riccardo Mario Azzara |
title |
Long-Term Dynamic Monitoring of Medieval Masonry Towers |
title_short |
Long-Term Dynamic Monitoring of Medieval Masonry Towers |
title_full |
Long-Term Dynamic Monitoring of Medieval Masonry Towers |
title_fullStr |
Long-Term Dynamic Monitoring of Medieval Masonry Towers |
title_full_unstemmed |
Long-Term Dynamic Monitoring of Medieval Masonry Towers |
title_sort |
long-term dynamic monitoring of medieval masonry towers |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Built Environment |
issn |
2297-3362 |
publishDate |
2020-02-01 |
description |
The aim of the paper is to present and discuss the results of an ambient vibration monitoring campaign conducted in the old town of Lucca, over the period 2015–2018. Despite the low level of the ambient vibrations in the historic center, using high-sensitivity instrumentation allowed the authors to measure and study the dynamic behavior of two medieval masonry towers: the San Frediano belfry and the Clock Tower. The main results of the dynamic identification of the towers are summarized, together with the variation over time of their dynamic properties. Some insights on the towers' response to the anthropic activities in the historic center are also presented. Finally, a finite element simulation is performed with the aim of assessing the influence of temperature variations on the towers' natural frequencies; good agreement is found between numerical and experimental results. The paper provides the scientific and technical community with a detailed report on a singular experiment in the field of architectural heritage. |
topic |
masonry towers long-term monitoring vibration sources operational modal analysis environmental effects numerical modeling |
url |
https://www.frontiersin.org/article/10.3389/fbuil.2020.00009/full |
work_keys_str_mv |
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