PSI - Issue 62

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 62 (2024) 113–120

2452-3216 © 2024 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 Scientific Board Member s Abstract Bridges are vital components of any existing infrastructure, enabling essential links for transportation and commerce. In Italy, a nation renowned for its historical bridges, the importance of proper risk classification, safety assessment and monitoring of existing structures is of paramount importance. Risk classification involves categorizing bridges into different classes based on their potential risks and deterioration levels. The fundamental purpose of risk classification is consistent across guidelines: to prioritize bridge inspections and maintenance efforts based on risk levels. Once bridges are classified according to risk, safety assessments and continuous monitoring are performed to evaluate their structural integrity and overall long-term safety. The methodologies for safety assessment can differ significantly among guidelines, highlighting the influence of regional factors, such as construction materials, design practices, and environmental conditions. However, the common goal is to ensure the safe operation of existing bridges by identifying deficiencies and prescribing necessary interventions. Monitoring techniques can range from visual inspections to advanced sensor networks and non-destructive testing methods. In Italy various guidelines and standards have been developed to address these concerns, to ensure the safety and longevity of its bridges. The actual guidelines inspections for existing bridges include those by the Italian Ministry of Infrastructure and Transport (MIT), which plays a central role in setting the national guidelines and regulations for bridge safety in Italy. MIT is responsible for overseeing the safety and maintenance of publicly-owned bridges in Italy, providing a comprehensive framework for risk classification, considering factors such traffic loads, material degradation and level of defectiveness. On the other hand, other manual exist, such those provided by Autostrade per l'Italia S.p.A. (ASPI), a private company responsible for the management and maintenance of Italy's motorway network. Both MIT and ASPI follow a risk-based approach to prioritize inspections and maintenance efforts on II Fabre Conference – Existing bridges, viaducts and tunnels: research, innovation and applications (FABRE24) Comparative analysis of different guidelines for risk classification, safety assessment and monitoring of existing bridges in Italy: A16 viaducts case-studies Elena Elettore a , Gianmaria Maresca a , Massimo Latour a , Gianvittorio Rizzano a , Alessandra De Angelis b , Ciro Del Vecchio b , Giuseppe Maddaloni b , Paola Lorusso c , Fabio Rizzo c , Maria Francesca Sabba c ,Dora Foti c a Department of Civil Engineering, University of Salerno, Fisciano, Italy b Department of Engineering, University of Sannio, Benevento, Italy c Department of Architecture, Construction and Design, Polytechnic University of Bari, Bari, Italy

2452-3216 © 2024 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 Scientific Board Members 10.1016/j.prostr.2024.09.023