PSI - Issue 78

Available online at www.sciencedirect.com

ScienceDirect

Procedia Structural Integrity 78 (2026) 831–838

© 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: Seismic hazard assessment; Physics-based ground-motion simulations; cultural heritage preservation; parametric study Abstract This paper presents a physics-based framework for assessing seismic risk and guiding mitigation strategies for the Religions Complex (The Mugamma' al Adyan) in Old Cairo, an area of immense historical and architectural significance. As part of the Italy –Egypt bilateral research initiative “CoReng” , the study combines geoscience and earthquake engineering to address the challenges of preserving vulnerable cultural heritage sites exposed to seismic hazards. A key innovation lies in the use of Physics Based Ground Motion Simulations (PBGMS) to generate site-specific seismic input by modeling the full wavefield propagation from the seismic source to the structure. A suite of 24 seismic scenarios was developed by systematically varying source parameters (depth, dip, strike, rake) of the 1992 Dahshour earthquake, incorporating both aleatory and epistemic uncertainties into the modeling process. The resulting synthetic accelerograms and response spectra, focused on the minaret of Princess Tatar al-Higaziya, provide a reliable seismic input for vulnerability assessment and structural performance analysis. The outcomes demonstrate how advanced simulation techniques can enhance resilience planning and support conservation efforts in data-scarce regions. XX ANIDIS Conference Physics-based ground-motion simulations for the seismic vulnerability and risk mitigation of the Religions Complex in old Cairo Marco Fasan a *, Hany Hassan b,c , Chiara Bedon a , Hesham Abdel Hafiez c , Fabio Romanelli d a University of Trieste – Department of Engineering and Architecture, Via Alfonso Valerio 6/1, Trieste 34127, Italy b National Institute of Oceanography and Applied Geophysics, Via Treviso 55, Udine 33100, Italy c National Research Institute of Astronomy and Geophysics, El-Marsd Street, Helwan 11421, Cairo, Egypt d University of Trieste – Department of Mathematics, Informatics and Geosciences, Via Weiss 4, Trieste 34128, Italy

* Corresponding author. Tel.: +39-040-558-3837; fax: +39-040-558-3836. E-mail address: mfasan@units.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.2025.12.106