Predictive model for seismic vulnerability assessment of churches based on the 2009 L’Aquila earthquake

Matteis, Gianfranco De; Brando, Giuseppe; Corlito, Valentina

doi:10.1007/s10518-019-00656-7

Cited by 51 publications

(22 citation statements)

References 23 publications

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“…Lagomarsino and Podesta (2004) carried out damage and vulnerability assessments of churches after the 2002 Molise, Italy, earthquake [39]. Matteis et al (2019) investigated a predictive methodology for vulnerability assessment of churches in large territorial areas [40]. Ruggieri et al (2020) described the seismic vulnerability of a sample of 90 masonry one-nave churches, subjected to the Valle Scrivia Earthquake, 2003 and supported similar studies describing masonry buildings [41,42].…”

Section: Introductionmentioning

confidence: 90%

Investigation of a Base-Isolator System’s Effects on the Seismic Behavior of a Historical Structure

Usta

2021

Buildings

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The earthquake performance of structures with seismic isolation is much better than that of fixed-base structures, and the application of seismic insulation ensures both structural integrity and the protection of the items present in the structures. The base-isolation system is used to extend the fundamental period of vibration of the structure and to obtain higher value from base-isolated structures relative to the fixed-base structure. Historical masonry mosques could be strengthened using a base-isolation technique. In this study, a historical masonry mosque was organized and modelled using SAP2000 software. Nonlinear Time History analyses were carried out for the historical masonry structure, firstly for the fixed-base mosque and secondly for the base-isolated mosque with lead rubber bearing (LRB). The use of a base-isolator system caused an increase in the historical mosque’s period, reducing the displacements, acceleration, and force applied on the mosque and the resulting structural deformation; the results of the analysis indicate a significant improvement in the seismic behavior. The modelling results show that such historical masonry buildings (especially those with high and delicate minarets) can be vulnerable to major earthquakes, and it may be useful to examine strengthening strategies for these buildings.

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Section: Introductionmentioning

confidence: 90%

Investigation of a Base-Isolator System’s Effects on the Seismic Behavior of a Historical Structure

Usta

2021

Buildings

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“…Masonry churches are not designed to withstand horizontal loads and their vulnerability is considerably higher than that of ordinary masonry buildings. This conjecture is confirmed by the damage that has occurred during the seismic events that have struck Italy in the recent decades (Doglioni, F, Moretti, A, and Petrini 1994;Da Porto et al 2012;Sorrentino et al 2014;De Matteis et al 2019;Penna et al 2019). Because of their structural morphology, characterised by a prevailing longitudinal dimension, slender perimeter walls and the lack of internal diaphragms, churches rarely show a global response to seismic action, but rather a local response in which the most vulnerable structural elements detach from the rest and collapse with a rigid body motion (Lagomarsino and Podestà 2004a, b).…”

Section: Introductionmentioning

confidence: 73%

Overturning of the façade in single-nave churches under seismic loading

Felice

Fugger

Gobbin

2021

Preprint

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The out-of-plane collapse of the façade represents one of the major threats and the most frequent cause of damages of churches due to strong earthquakes. Due to the slenderness of the façade and the lack of adequate connections to the side walls and the wooden roof, the seismic action can trigger the overturning. A detailed assessment is therefore required to judge whether or not to intervene. This paper presents an approach for the seismic assessment of the stability of the façade, through a discrete element model based on a photographic survey, with the aim of representing the actual geometry and arrangement of the stone units and their effects on the kinematics of the overturning. The collapse mechanism is simulated with both, quasi-static pushover and dynamic pulse-based analyses and the results compared to those of conventional rigid-body kinematics. The proposed approach is then applied to seven masonry churches that suffered severe damages during the 2009 L’Aquila (Italy) earthquake and the failure mode provided by the analyses is compared to the damages caused by the earthquake. The method is able to give a reliable estimate of the expected failure mechanism, taking into account the quality of the masonry and the connections to the side walls, while also providing the seismic acceleration required to trigger the motion and the ultimate displacement beyond which collapse occurs.

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“…After the recent seismic events, many efforts of the scientific community have been done in order to develop appropriate procedures for implementing seismic vulnerability analysis (Formisano, 2017;Formisano and Marzo, 2017;Laterza et al, 2017;Lopez et al, 2019) and specific retrofitting interventions (Faggiano et al, 2009;Terracciano et al, 2015;D'Amato et al, 2017;Milani et al, 2017bMilani et al, , 2018. In particular, as previously introduced, recurrent seismic damages were observed in historic masonry buildings characterized by local out-of-plane and in-plane response mechanisms regarding one or more isolated structure portions (Lagomarsino and Podestà, 2004;Formisano et al, 2010;Leite et al, 2013;Gattulli et al, 2014;Milani and Valente, 2015b;Stockdale, 2016;Valente et al, 2016;Betti et al, 2018;De Matteis et al, 2019;Fuentes et al, 2019b;Penna et al, 2019;Ramirez et al, 2019).…”

Section: Seismic Vulnerability and Risk Of Historical Constructionsmentioning

confidence: 99%

Large-Scale Seismic Vulnerability and Risk of Masonry Churches in Seismic-Prone Areas: Two Territorial Case Studies

Fabbrocino

Vaiano

Formisano

et al. 2019

Front. Built Environ.

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In this paper, seismic vulnerability and risk assessment of two samples of churches, located in Teramo and Ischia island (Naples gulf), both affected by the most recent earthquakes that occurred in Italy, are presented. To this aim, we applied a simplified method particularly suitable for seismic evaluations at a territorial scale, providing a global resulting score to be compared among the cases analyzed. The data obtained allowed us to provide vulnerability maps and a seismic risk index for all the considered churches. In addition, the calculated indexes permit a preliminary health state evaluation of the inspected churches, for ranking the priorities and planning additional in-depth evaluations.

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Predictive model for seismic vulnerability assessment of churches based on the 2009 L’Aquila earthquake

Cited by 51 publications

References 23 publications

Investigation of a Base-Isolator System’s Effects on the Seismic Behavior of a Historical Structure

Investigation of a Base-Isolator System’s Effects on the Seismic Behavior of a Historical Structure

Overturning of the façade in single-nave churches under seismic loading

Large-Scale Seismic Vulnerability and Risk of Masonry Churches in Seismic-Prone Areas: Two Territorial Case Studies

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