Dynamic characterization of progressively damaged segmental masonry arches with one settled support: experimental and numerical analyses

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Published Dec 11, 2019
DOI https://doi.org/10.3221/IGF-ESIS.51.31

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Maria Giovanna Masciotta
University of Minho
http://orcid.org/0000-0003-2364-3490 Daniele Pellegrini
Institute of Information Science and Technologies ‘‘A. Faedo”, ISTI–CNR, Pisa, Italy
https://orcid.org/0000-0002-3416-771X Daniele Brigante
University of Molise, Structural and Geotechnical Dynamics Laboratory, Campobasso, Italy
https://orcid.org/0000-0001-5538-2024 Alberto Barontini
ISISE, University of Minho, Department of Civil Engineering, Guimarães, Portugal
https://orcid.org/0000-0001-8377-8149 Paulo B. Lourenço
ISISE, University of Minho, Department of Civil Engineering, Guimarães, Portugal
https://orcid.org/0000-0001-8459-0199 Maria Girardi
Institute of Information Science and Technologies ‘‘A. Faedo”, ISTI–CNR, Pisa, Italy
https://orcid.org/0000-0002-7358-5607 Cristina Padovani
Institute of Information Science and Technologies ‘‘A. Faedo”, ISTI–CNR, Pisa, Italy
https://orcid.org/0000-0002-2467-569X Giovanni Fabbrocino
University of Molise, Structural and Geotechnical Dynamics Laboratory, Campobasso, Italy
https://orcid.org/0000-0002-4918-5398

Abstract

This paper aims to explore the dynamic behavior of a segmental masonry arch subjected to increasing horizontal displacements of one support. To this end, output-only dynamic identification techniques are first used to track the evolution of the dynamic features of the system under progressive damage scenarios and evaluate their sensitivity to settlement-induced cracks. Considerations on the structural response of the segmental arch up to failure are also included. Then, a numerical procedure coupling linear perturbation and modal analysis is applied to simulate the dynamic behavior of the arch over consecutive scenarios, taking into account the influence of the damage on the structure’s dynamic properties in an automatic way. The combination of experimental and numerical analyses allows to fully investigate the dynamics of the cracked masonry arch and to shed light on relevant aspects about the effects of settlement-induced cracks on the modal blueprints of masonry arches.

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Issue
Vol. 14 No. 51 (2020): January 2020
Section
SI: Fracture and Damage Detection in Masonry Structures

How to Cite

Masciotta, M. G., Pellegrini, D., Brigante, D., Barontini, A., Lourenço, P. B., Girardi, M., Padovani, C. and Fabbrocino, G. (2019) “Dynamic characterization of progressively damaged segmental masonry arches with one settled support: experimental and numerical analyses”, Frattura ed Integrità Strutturale, 14(51), pp. 423–441. doi: 10.3221/IGF-ESIS.51.31.

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