Earthquakes in central Italy in 2016: comparison between Norcia and Amatrice

Trabalho apresentado em 16th European Conference on Earthquake Engineering (16ECEE), 18-21 june 2018, Thessaloniki, GreeceIn this paper lessons are extracted from the comparison between the very different consequences that a set of earthquakes had on the neighbouring towns of Amatrice and Norcia during the 2016 central Italy earthquake sequence. The paper initially describes the prevention programs implemented in Amatrice and Norcia starting from the reconstruction after the 1860 Norcia earthquake. The earthquake intensities in Amatrice and Norcia during the 2016 Central Italy events were considering accelerometric recordings of the Italian Strong Motion Network. In the same municipalities, the damage has been assessed through site visits and analysis of the results of the post-earthquake safety assessment performed after the events. It was found that the differences in damage were essentially due to the strengthening of most houses in Norcia done during the previous decades. This is also likely to lead to a much faster recover of the economy and livelihood in Norcia, as Amatrice needs to be entirely rebuilt.N/

Non-Structural Risk Evaluation: Experiences From Pilot Areas Of The Knowrisk Project

This paper presents a multidisciplinary approach to quantify seismic hazard and ground motion intensity parameters for non-structural seismic risk evaluation. In the framework of the European KnowRISK Project, three pilot areas were selected for testing different methodological approaches aimed at evaluating elements and measures to reduce seismic risk coming along with the failure of non-structural elements. At Mt. Etna, Italy, instrumental and historical macroseismic data are used to generate ground motion time series for different scenario events. Risk maps for non-structural damage are generated by using building vulnerability from census data and a damage model based on fragility curves; interstory drift spectra have been also calculated for a representative test site. In South Iceland, scenarios are defined basing on the June 2000 seismic sequence, which provided strong-motion data at several locations. The recorded data and other parameters of the source are used to perform finite-fault simulations of ground motion at different locations in the area and then to calculate interstory drift spectra. In Portugal a scenario referring to the Lower Tagus Valley was selected and finite-fault simulations for the nearby city of Lisbon were performed.PublishedThessaloniki, Greece5T. Sismologia, geofisica e geologia per l'ingegneria sismic

Umidita' di risalita capillare nelle murature: determinazione del contenuto umido e tecniche di risanamento

Dottorato di ricerca in ingegneria ergotecnica edile. 7. ciclo. Coordinatori P. N. Maggi. Relatore S. Croce e L. BindaConsiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7, Rome; Biblioteca Nazionale Centrale - P.za Cavalleggeri, 1, Florence / CNR - Consiglio Nazionale delle RichercheSIGLEITItal

Validazione di modelli macrosismici per la stima del danneggiamento

I metodi macrosismici per la stima del danneggiamento di edifici residenziali sono stati inizialmente sviluppati ed utilizzati per la realizzazione di scenari di rischio all’interno di importanti progetti nazionali per l’area di Vittorio Veneto (Bernardini et al., 2008; Meroni et al., 2008a, 2008b) e la Liguria occidentale (Giovinazzi e Lagomarsino, 2004). Grazie alla loro robustezza e flessibilità hanno successivamente avuto ampia diffusione anche a livello Europeo nei progetti Risk-UE (Mouroux and Le Brun, 2006; Lantada et al., 2010), LessLoss (Spence, 2007), UPStrat-MAFA (2012), Syner-G (2012), Zonno et al. (2010). Attualmente sono disponibili in letteratura diversi metodi, che si differenziano principalmente nella definizione della vulnerabilità delle strutture, ma la cui formulazione originaria parte dalla definizione del danno macrosismico secondo la scala EMS98 (Grünthal, 1998). Nonostante la loro diffusione questi metodi mancano ancora di una esaustiva validazione. La disponibilità di un rilievo macrosismico dettagliato per il centro storico de L’Aquila (Tertulliani et al., 2011, 2012) ha permesso di confrontare i risultati di alcune stime di danneggiamento macrosismico con una situazione reale, pur con alcune limitazioni dettate dalla tipologia dell’edificato in questione e dall’analisi estesa al solo grado di intensità registrato IEMS98 = VIII-IX

From seismic input to damage scenario: an example for the pilot area of Mt. Etna volcano (Italy) in the KnowRISK Project

In this paper we present a multidisciplinary approach aimed at assessing seismic risk due to non-structural damage. The study has been carried out in the framework of the European KnowRISK Project and focuses on the pilot area of Mt. Etna volcano (Italy). Both instrumental data and as well as macroseismic observations provide unique opportunities for testing innovative and classical approaches for assessing seismic risk. Starting from the seismic hazard analysis, we first identify a test site (Zafferana) affected by non-structural damage. We produce seismic scenarios based on macroseismic and ground-motion data and finally obtain the relevant risk map using the Italian census data to classify buildings into vulnerability classes and a model to predict damage distribution.PublishedReykjavik, Iceland4T. Sismologia, geofisica e geologia per l'ingegneria sismic

How to survive earthquakes: the example of Norcia

In this paper lessons are extracted from the comparison between the very different consequences that similar earthquakes had on the neighbouring towns of Norcia and Amatrice during the 2016 seismic crisis of central Italy. It was found that the differences in damage were essentially due to the strengthening of most houses in Norcia done during the previous decades. This is also likely to lead to a much faster recover of the economy and livelihood in Norcia, as Amatrice needs to be entirely rebuilt.PublishedReykjavik, Iceland4T. Sismologia, geofisica e geologia per l'ingegneria sismic

How to Survive Earthquakes: The Example of Norcia.

In this paper lessons are extracted from the comparison between the very different consequences that similar earthquakes had on the neighbouring towns of Norcia and Amatrice during the 2016 seismic crisis of central Italy. It was found that the differences in damage were essentially due to the strengthening of most houses in Norcia done during the previous decades. This is also likely to lead to a much faster recover of the economy and livelihood in Norcia, as Amatrice needs to be entirely rebuilt.Published403-4124T. Sismologia, geofisica e geologia per l'ingegneria sismic