PSI - Issue 78

Available online at www.sciencedirect.com

ScienceDirect

Procedia Structural Integrity 78 (2026) 2110–2117

© 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: refurbishment, monumental buildings, masonry, subsidence, foundations. Abstract This paper describes the interventions planned to mitigate the seismic risk of a lateral portion of the religious complex of San Michele Arcangelo in Brisighella (Ravenna) affected by serious foundation subsidence and partial disconnection of the vaulted system and masonry in elevation. We will try to explain the planned interventions, partly carried out at the time of writing (June 2025), showing the construction site phases already completed to date and the project sketches for the parts still to be realized. 1. Introduction Monumental buildings located in hilly areas are often affected by subsidence due to the instability of the underlying soil, especially if it is clayey in nature. This has been amplified in recent years by droughts caused by climate change, which have put a strain on the foundations of these heavy buildings. At the same time, the design project proposed to alleviate these defects and improve the seismic behavior of the building, by linking the various wall blocks together, must be as light as possible and above all reversible, as required by the Soprintendenza Belle Arti , which oversees projects on these buildings. XX ANIDIS Conference The seismic restoration operations for the Collegiate Church of San Michele in Brisighella Marco Peroni a *, Nicolò Minguzzi a a Marco Peroni Ingegneria – Faenza, Via S. Antonino 1, Faenza (Ravenna), Italy

* Corresponding author. Tel.: +039-0546-31433 E-mail address: peroni@marcoperoni.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.2025.12.268