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Seismic behaviour of rubble masonry: Shake table test and numerical modelling

TitoloSeismic behaviour of rubble masonry: Shake table test and numerical modelling
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2022
Autoride Felice, G., Liberatore D., De Santis S., Gobbin F., Roselli Ivan, Sangirardi M., AlShawa O., and Sorrentino L.
RivistaEarthquake Engineering and Structural Dynamics
ISSN00988847
Parole chiaveCamera tracking, DEM modelling, Experimental test, Failure (mechanical), FEM-DEM modeling, Finite element method, fragmentation, Masonry construction, Masonry materials, Motion camera tracking, Out-of-plane, Out-of-plane behavior, Rubble masonry, Safety engineering, Seismic response, Structural dynamics, Walls (structural partitions)
Abstract

The destruction of Amatrice and the surrounding villages in Central Italy after the 2016 seismic sequence was so impressive that engineers, authorities and local communities started sharing the common feeling that historical stone masonry buildings were too below current safety standards. The severe damage caused by the earthquakes led to a general distrust of traditional building techniques, leading to the conclusion that there is nothing to do but demolish and rebuild, perhaps with a false antique. Is there an alternative? Is there a way to combine safety and preservation of architectural heritage? This paper aims contributing to the understanding of the seismic behaviour of stone masonry by reproducing, through simulation on a shake table, the progressive loss of compactness of a real scale rubble masonry wall up to the ruinous collapse with the separation between the two external leaves. The laboratory simulation allowed to evaluate the decrease of the fundamental frequency with increasing damage and estimate the maximum displacement profile and the amount of cracking that the wall is able to sustain before failing. Eventually, two modelling strategies based on finite and discrete element methods were proposed and applied to verify the capability of simulating the out-of-plane seismic response and the failure mechanisms of rubble masonry. © 2022 The Authors. Earthquake Engineering & Structural Dynamics published by John Wiley & Sons Ltd.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85124627608&doi=10.1002%2feqe.3613&partnerID=40&md5=e6fc25596133ea0a1f7fea98f48f7bb9
DOI10.1002/eqe.3613
Citation KeydeFelice2022