PSI - Issue 78

Andrea Pozè Falet et al. / Procedia Structural Integrity 78 (2026) 325–332

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does not indicate anomalies between the first bending modes of any span, if compared to C1. However, ongoing studies are extending this comparison to other mode shapes and using other spans (C2-C5) as a reference. Acknowledgements This work is part of the research activity developed by the authors within the framework of the “PNRR”: MOST – Sustainable Mobility National Research Center - SPOKE 7 “Cooperative Connected and Automated Mobility and Smart Infrastructures” - WP4" and of th e extended partnership “PNRR”: PE6 RETURN SPOKE VS3 “Earthquakes and Volcanoes” . The valuable support of Città Metropolitana di Torino (CMTO), the local authority overseeing the case study, is also gratefully acknowledged. References Allemang, R., & Brown, David. L. (1982). A Correlation Coefficient for Modal Vector Analysis. Proc. 1st Int. Modal Analysis Conference . Arneson, L. A., Zevenbergen, L. W., Lagasse, P. F., & Clopper, P. E. (2012). Evaluating Scour at Bridges: Fifth Edition (Report Number : FHWA-HIF-12-003) . Ciancimino, A., Jones, L., Sakellariadis, L., Anastasopoulos, I., & Foti, S. (2022). Experimental assessment of the performance of a bridge pier subjected to flood-induced foundation scour. Geotechnique , 72 (11), 998 – 1015. https://doi.org/10.1680/JGEOT.20.P.230/ASSET/IMAGES/SMALL/JGEOT.20.P.230-F18.GIF Civera, M., Sibille, L., Zanotti Fragonara, L., & Ceravolo, R. (2023). A DBSCAN-based automated operational modal analysis algorithm for bridge monitoring. Measurement , 208 , 112451. https://doi.org/10.1016/J.MEASUREMENT.2023.112451 D’Angelo, M., Civera, M., Giordano, P. F., Borlenghi, P., Ballio, F., Limongelli, M. P., & Chiaia, B. (2025). Bridge collapses in Italy across the 21st century: survey and statistical analysis. Structure and Infrastructure Engineering . https://doi.org/10.1080/15732479.2025.2483500 Döhler, M., Reynders, E., Magalhães, F., Mevel, L., De Roeck, G., & Cunha, Á. (2011). Pre- and Post-identification Merging for Multi-Setup OMA with Covariance-Driven SSI. Conference Proceedings of the Society for Experimental Mechanics Series , 5 , 57 – 70. https://doi.org/10.1007/978-1-4419-9825-5_7 Foti, S., & Sabia, D. (2011). Influence of Foundation Scour on the Dynamic Response of an Existing Bridge. Journal of Bridge Engineering , 16 (2), 295 – 304. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000146/ASSET/819DF526-583B-4EBC-91FE FDA296519AA4/ASSETS/IMAGES/LARGE/20.JPG Reynders, E., Pintelon, R., & De Roeck, G. (2008). Uncertainty bounds on modal parameters obtained from stochastic subspace identification. Mechanical Systems and Signal Processing , 22 (4), 948 – 969. https://doi.org/10.1016/j.ymssp.2007.10.009 Van Overschee, P., & De Moor, B. (1996). Subspace Identification for Linear Systems: Theory and Implementation - Applications . Kluwer Academic Press.