PSI - Issue 78

Available online at www.sciencedirect.com

ScienceDirect

Procedia Structural Integrity 78 (2026) 1721–1728

© 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of XX ANIDIS Conference organizers Keywords: Masonry vault; Experimental test; Numerical modelling; Seismic response. Abstract Masonry cross vaults in historic churches represent structurally significant yet highly vulnerable elements under seismic loading, due to their complex geometry and limited capacity to accommodate horizontal displacements. This study presents the design process of an experimental investigation into the diaphragmatic behavior of such vaults when subjected to seismic actions. Taking inspiration from the transept vaults of the medieval Church of San Michele Arcangelo in Casertavecchia (Caserta, Italy), a full scale prototype will be constructed for laboratory testing, involving horizontal displacements applied to one of its base sides. This paper first describes the construction process of the specimen, including the definition of its geometry and the results of material characterization tests. This is followed by a detailed account of the test setup, with particular attention to the boundary conditions and the assumptions made to simulate in-situ constraints. Finally, a preliminary Finite Element model of the experiment is introduced, aimed at predicting the structural response and evaluating the expected strength. XX ANIDIS Conference Testing and modelling a full-scale historic masonry vault under seismic loads Mattia Zizi a , Mohammad Javad Azari Nezhadian b , Corrado Chisari a , Giuseppe D’Arenzo b , Maddalena Della Pietra a , Costantino Dell’Aversano a , Giulio Iovinelli a , Denise Li Cavoli b , Marinella Fossetti b , Gianfranco De Matteis a, * a Department of Architecture and Industrial Design, University of Campania “Luigi Vanvitelli”, San Lorenzo Abbey, Via San Loren zo, Aversa (CE), 81031, Italy b Department of Engineering and Architecture, University of Enna “Kore”, Cittadella Universitaria, 94100, Enna, Italy

* Corresponding author. Tel.: +39 0815010823. E-mail address: gianfranco.dematteis@unicampania.it

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of XX ANIDIS Conference organizers 10.1016/j.prostr.2025.12.219