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| Titel |
Acoustic emission monitoring of medieval towers considered as sensitive earthquake receptors |
| VerfasserIn |
A. Carpinteri, G. Lacidogna, G. Niccolini |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 7, no. 2 ; Nr. 7, no. 2 (2007-04-02), S.251-261 |
| Datensatznummer |
250004449
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| Publikation (Nr.) |
 copernicus.org/nhess-7-251-2007.pdf |
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| Zusammenfassung |
Many ancient masonry towers are present in Italian territory. In some
cases these structures are at risk on account of the intensity of the
stresses they are subjected to due to the high level of regional seismicity. In
order to preserve this inestimable cultural heritage, a sound safety
assessment should take into account the evolution of damage phenomena. In
this connection, acoustic emission (AE) monitoring can be highly effective.
This study concerns the structural stability of three medieval towers rising
in the centre of Alba, a characteristic town in Piedmont (Italy). During the
monitoring period a correlation between peaks of AE activity in the masonry
of these towers and regional seismicity was found. Earthquakes always affect
structural stability. Besides that, the towers behaved as sensitive
earthquake receptors. Here a method to correlate bursts of AE activity in a
masonry building and regional seismicity is proposed. In particular, this
method permits to identify the premonitory signals that precede a
catastrophic event on a structure, since, in most cases, these warning signs
can be captured well in advance. |
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