PSI - Issue 84

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ScienceDirect

Procedia Structural Integrity 84 (2026) 1015–1022

© 2026 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 the scientific committee of the Conference Keywords: Pre-stressed Concrete Bridges, Existing Bridges, Structural Health Monitoring, Data Analysis, FEM Analyses. Abstract The increasing need to ensure the safety and durability of existing bridges and viaducts has accelerated the integration of advanced Structural Health Monitoring (SHM) systems into transport infrastructure networks. This paper presents a case study of a prestressed reinforced concrete (PRC) bridge located in the Province of Brescia, Italy. The bridge is part of a critical roadway subjected to high traffic volumes, exceeding 400˙000 vehicles per month, including 7 -10% heavy trucks. Given its strategic importance, the bridge was equipped with a comprehensive SHM system comprising multiple sensors and two weigh-in-motion (WIM) platforms, enabling continuous monitoring of structural responses and traffic loads. The study focuses on the analysis and interpretation of monitoring data to support risk-informed decision-making. A suite of numerical and analytical models, including nonlinear finite element (FE) simulations, was developed and calibrated to investigate the bridge’s response under heavy load ing conditions. Special emphasis was placed on identifying synthetic performance indicators capable of detecting degradation trends and potential structural anomalies. The proposed methodology demonstrates how integrating real-time monitoring data with numerical modelling can enhance the predictive capabilities of SHM systems. These risk-oriented indicators provide valuable input for inclusion in national frameworks for bridge classification, safety assessment, and asset management. This case study illustrates practical applications for existing bridges and proposes strategies to improve the resilience and sustainability of transport infrastructure within the national asset base. III Fabre Conference: Existing Bridges, Viaducts, and Tunnels: Research, Innovation, and Applications Structural health monitoring of short span pre-stressed concrete bridges: a case study in Brescia Ivan Beltracchi a, *, Elisa Carleschi a , Adriano Reggia a , Giovanni Metelli a , Fausto Minelli a , Giovanni A. Plizzari a a University of Brescia, Via Branze 43, 25123 Brescia, Italy

* Corresponding author. Tel.: +39-3662794498; E-mail address: ivan.beltracchi@unibs.it

2452-3216 © 2026 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 the scientific committee of the Conference 10.1016/j.prostr.2026.06.130