ISABHEL (Integrated SAtellite and ground-based monitoring for Bridge HEalth Lifetime assessment)

This paper presents ISABHEL (Integrated SAtellite and ground-based monitoring for Bridge HEalth Lifetime assessment) project, which demonstrates an integrated approach to Structural Health Monitoring (SHM) by combining satellite InSAR data, contact sensors, Photomonitoring™, and Finite Element Modeling (FEM). The system is implemented on two bridges over the Po River in Turin, Italy: the Amedeo VIII and the Regina Margherita bridges. Each technology complements the others, providing a comprehensive understanding of bridge behavior. The InSAR analysis using high-resolution COSMO-SkyMed data revealed slight asymmetric deformation in the Regina Margherita Bridge, with the western lane exhibiting higher deformation rates. Contact sensors were strategically designed to be positioned based on each bridge's specific vulnerabilities, with the Amedeo VIII bridge focused on static monitoring and the Regina Margherita bridge on dynamic monitoring. The calibrated FEM models will enable prediction of structural behavior and establish critical thresholds. A web platform integrating all data sources will provide real-time visualization and alerts. This paper presents the initial results of this ongoing project funded by ESA, which will be completed in the next months