This paper presents a study on the behaviour of the walls of the Rocca Roveresca of Senigallia in Italy built in the XIV century on the ruins of a former Roman defensive struc-ture. This is a peculiar example of a small fortress that had undergone in the XV century im-portant modifications of the plant in order to enhance its defensive performances. A linear finite element model is first developed in order to understand the dynamic behaviour of a ge-neric portion of the wall and to detect the probable incipient failure mechanisms. A subse-quent static nonlinear analysis is carried out, with the same finite element model, to investigate the formation of the cracking layout and to detect the position of plastic hinges. The last analysis level is carried out with a tailored macro-element constituted by three bod-ies, namely the two external curtains and the inner fill for which a degradation of the behav-iour is considered. The results obtained demonstrates the efficiency of the wall against earthquakes characterized by return times typical for ultimate limit states. Same issues that deserve further investigation are highlighted.

Assessment of seismic vulnerability of historical defensive walls / Leoni, Graziano; Zona, Alessandro; Piattoni, Quintilio; Meschini, Alessandra; Petrucci, Enrica; Dall'Asta, Andrea; Dezi, Luigino. - vol. I:(2015), pp. 1850-1864. (Intervento presentato al convegno COMPDYN 2015 Computational Methods in Structural Dynamics and Earthquake Engineering tenutosi a Creta (Grecia)).

Assessment of seismic vulnerability of historical defensive walls

MESCHINI, Alessandra;
2015

Abstract

This paper presents a study on the behaviour of the walls of the Rocca Roveresca of Senigallia in Italy built in the XIV century on the ruins of a former Roman defensive struc-ture. This is a peculiar example of a small fortress that had undergone in the XV century im-portant modifications of the plant in order to enhance its defensive performances. A linear finite element model is first developed in order to understand the dynamic behaviour of a ge-neric portion of the wall and to detect the probable incipient failure mechanisms. A subse-quent static nonlinear analysis is carried out, with the same finite element model, to investigate the formation of the cracking layout and to detect the position of plastic hinges. The last analysis level is carried out with a tailored macro-element constituted by three bod-ies, namely the two external curtains and the inner fill for which a degradation of the behav-iour is considered. The results obtained demonstrates the efficiency of the wall against earthquakes characterized by return times typical for ultimate limit states. Same issues that deserve further investigation are highlighted.
2015
COMPDYN 2015 Computational Methods in Structural Dynamics and Earthquake Engineering
Integrated research; Point cloud-based Survey; 3D Data Processing; Diagnostics; Seismic Vulnerability; FEM; Structural analysis
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Assessment of seismic vulnerability of historical defensive walls / Leoni, Graziano; Zona, Alessandro; Piattoni, Quintilio; Meschini, Alessandra; Petrucci, Enrica; Dall'Asta, Andrea; Dezi, Luigino. - vol. I:(2015), pp. 1850-1864. (Intervento presentato al convegno COMPDYN 2015 Computational Methods in Structural Dynamics and Earthquake Engineering tenutosi a Creta (Grecia)).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1673542
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