PSI - Issue 78

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2025) 000–000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 78 (2026) 1577–1584

© 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 Abstract Ensuring the safety of school buildings against natural and man-made hazards is a priority worldwide, as demonstrated by increasing risk mitigation efforts supported by national governments and multilateral agencies. In Italy, following the 2002 S. Giuliano earthquake, OPCM 3274/2003 required a seismic vulnerability assessment for all strategic and critical buildings, initiating the first comprehensive strategy for risk mitigation of public buildings. After that, several retrofitting programs were funded (e.g., Law 77/2009, which allocated around 1 billion euro in 2009). Since 2019, the MARS (Seismic Risk Maps) project has been funded by the Italian Department of Civil Protection to assess the seismic risk of different assets, including school buildings. Several researcher units belonging to the ReLUIS (Network of University Laboratories for Seismic Engineering) consortium, with the cooperation of the EUCENTRE (European Centre for Training and Research in Earthquake Engineering) Foundation, have contributed to the development of seismic risk maps at a national level, using a proper vulnerability model, named “School-MARS model”, which considers fragility results obtained for Italian schools in their as-built condition. The ongoing 2024-2026 MARS CARTIS project aims to move towards mitigated seismic risk scenario. As a useful step in this direction, a database has been set up, which currently contains around 40 retrofitted school buildings encompassing both unreinforced masonry and reinforced concrete structures. Available data comprise type and strategy of intervention (i.e., local, upgrading and full rehabilitation), performance improvements and actual costs, thus also providing useful information for addressing future risk mitigation programs. © 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: retrofit strategies, masonry school-buildings, reinforced concrete school-buildings, seismic risk XX ANIDIS Conference Towards Mitigated Seismic Risk Scenarios for School Buildings:Analysis of a Real-Case Retrofit Database from the MARS Project S. Cattari a *, V. Manfredi b , L. Petrini c , S. Alfano a , S. Lagomarsino a , A. Masi b a University of Genova – Dept. of Civil, Chemical and Environmental Engineering, Via Montallegro 1, 16145,Genova,Italy b University of Basilicata – School of Engineering, Viale dell'Ateneo Lucano 10, 85100, Potenza, Italy c Department of Civil and Environmental Engineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano 20133, Italy

* Corresponding author. Tel.: +39 010 3532264; fax: + 39 010 3352546. E-mail address: serena.cattari@unige.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

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.2025.12.201