Multi-risk assessment for bridges

Multi-risk assessment for bridges: The application of the Italian Guidelines

Di Sano, Silvia (Polytechnic of Milan)
Costa, Giancarlo (Polytechnic of Milan; BAM Federal Institute for Materials Research and Testing)
Giordano, Pier Francesco (Polytechnic of Milan)
Pregnolato, M. (TU Delft Hydraulic Structures and Flood Risk; University of Bristol)
Limongelli, Maria Pina (Polytechnic of Milan; Lund University)

2023

Bridges are essential elements in the built environment since they underpin the functioning of transportation systems. Nevertheless, they are vulnerable due to aggressive environment, demand beyond the design level, and other contingencies such as extreme events. The management of bridges represents a significant challenge for improving transport performance and ensure the safety of users. In Italy, bridge management is addressed by the recent “Guidelines for risk classification and management, safety evaluation and monitoring of existing bridges” which were issued by the Italian Ministry for Public Work in 2020. The guidelines propose an operational approach with distinctive characteristics: (i) risk-based, i.e., based on the typical parameters of hazard, vulnerability, and exposure; (ii) multi-level, i.e., they include six assessment levels (0-5) of increasing complexity; and (iii) multi-risk, i.e., they assess structural/foundation, seismic, hydrological and landslide risk. This paper presents a general overview of the 2020 Italian Guidelines and their application to a selected case study. Lessons from the application to the case study are drafted and possible criticalities highlighted.

bridge management
infrastructures
Italian guidelines
structural safety
risk assessment
risk classification

http://resolver.tudelft.nl/uuid:4cbffb4e-619a-4ad1-902e-e1fa148c3bb2

https://doi.org/10.1002/cepa.2046

2509-7075

ce/papers, 6 (5), 772-779

EuroStruct 2023, 2023-09-25 → 2023-09-29, University of Natural Resources and Life-Sciences (BOKU), Vienna, Austria

Institutional Repository

journal article

© 2023 Silvia Di Sano, Giancarlo Costa, Pier Francesco Giordano, M. Pregnolato, Maria Pina Limongelli