The seismic sequence that struck Central Italy in August-October 2016 seriously damaged many historical buildings of the Italian cultural heritage. In particular, churches were widely damaged due to intrinsic peculiarities of their structural systems, not able to develop an efficient box-like resisting mechanism. During seismic emergency, teams of experts carried out a massive survey of churches to assess both the occurred damage and their usability. Teams have been coordinated by the Department of Civil Protection and the Ministry of Cultural Heritage and Tourism. In this paper, a methodology for processing data recorded during inspections of churches of the Marche Region is proposed and used to analyse a limited dataset. Starting from the subdivision of the sample into homogeneous typologies, the most recurring damage mechanisms are identified. In addition, the global damage indexes of each churches are correlated with the relevant highest spectral pseudo acceleration at T=0.30s registered at the site as a consequence of the main shocks; this allows obtaining relationships between the seismic intensity and the expected damage. Finally, the overall damage occurred to churches of the sample is compared to that estimated through empirical models available in the literature.

First processing and remarks on the observed damage to the churches of the Marche Region after the centre Italy earthquake 2016

Carbonari Sandro;Dezi Luigino;Gara Fabrizio;
2018

Abstract

The seismic sequence that struck Central Italy in August-October 2016 seriously damaged many historical buildings of the Italian cultural heritage. In particular, churches were widely damaged due to intrinsic peculiarities of their structural systems, not able to develop an efficient box-like resisting mechanism. During seismic emergency, teams of experts carried out a massive survey of churches to assess both the occurred damage and their usability. Teams have been coordinated by the Department of Civil Protection and the Ministry of Cultural Heritage and Tourism. In this paper, a methodology for processing data recorded during inspections of churches of the Marche Region is proposed and used to analyse a limited dataset. Starting from the subdivision of the sample into homogeneous typologies, the most recurring damage mechanisms are identified. In addition, the global damage indexes of each churches are correlated with the relevant highest spectral pseudo acceleration at T=0.30s registered at the site as a consequence of the main shocks; this allows obtaining relationships between the seismic intensity and the expected damage. Finally, the overall damage occurred to churches of the sample is compared to that estimated through empirical models available in the literature.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11566/263175
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