Energy‐Based Characterisation of Earthquake Damage in Masonry Infills Through Combined In‐Plane and Out‐of‐Plane Experimental Tests
Rattachement africain : gb, it. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
ABSTRACT The seismic capacity of structural systems/members is usually defined in terms of deformation thresholds. Although this is effective in many circumstances, disregarding cumulative quantities such as hysteretic energy may be ineffective when low‐cycle fatigue is relevant (e.g., long‐duration ground motions, very soft soils, ground‐motion sequences). This paper presents the outcomes of an experimental campaign designed to explore the suitability of hysteretic energy thresholds to characterise damage. To do so, three nominally identical masonry infill panels were subjected to in‐plane (IP), quasi‐static, cyclic displacement‐controlled loads generating a moderate level of damage, followed by out‐of‐plane (OOP), dynamic shaking‐table tests amplified until collapse. The study investigated the effect of the IP hysteretic energy dissipation on the observed IP damage state, and the subsequent OOP collapse capacity. Different IP loading protocols were designed to induce the same peak amplitude‐based engineering demand parameters (EDPs) while modulating the energy‐based demands. In the IP phase, two specimens showed a damage pattern dominated by sliding along two to three horizontal cracks, while the third specimen was dominated by a diagonal, strut‐like failure. For the sliding‐dominated specimens, the IP hysteretic energy showed signs of a positive correlation with the level of damage, and, in turn, a possible negative correlation with the peak floor acceleration leading to complete OOP collapse. On the one hand, further complementary experimental tests and/or refined numerical analyses are needed to generalise the trend highlighted here. On the other hand, the presented results pave the way for using energy‐based EDPs for state‐dependent seismic fragility assessment methodologies, thus allowing a refined consideration of damage accumulation.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Energy‐Based Characterisation of Earthquake Damage in Masonry Infills Through Combined In‐Plane and Out‐of‐Plane Experimental Tests
- Date Crossref
- 23/07/2026
- Éditeur
- Wiley
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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University College London pays non établi dans la noticeUniversité ou école supérieure
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Sapienza University of Rome Department of History pays non établi dans la noticeUniversité ou école supérieure
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Politecnico di Torino pays non établi dans la noticeUniversité ou école supérieure
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European Centre for Training and Research in Earthquake Engineering pays non établi dans la noticeOrganisation à but non lucratif
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University of Palermo pays non établi dans la noticeUniversité ou école supérieure
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Istituto Universitario di Studi Superiori di Pavia pays non établi dans la noticeUniversité ou école supérieure
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Centre For Training and Research on Reduction of Seismic Risk Scuola Universitaria Superiore IUSS Pavia Pavia Italy pays non établi dans la noticeInstitution
University College London, Department of History — Sapienza University of Rome et Politecnico di Torino, avec 4 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.