PSI - Issue 84

Alessandro Vari et al. / Procedia Structural Integrity 84 (2026) 975–982

982

dynamic amplification factors of the deck. Both operational modes allow for remote calibration of acquisition frequencies and trigger thresholds, ensuring the system remains adaptive to the evolving conditions of the infrastructure throughout its service life. While raw data is transmitted to dedicated servers for detailed analysis, synthetic alert states sent to mobile apps enable immediate safety assessments. CAM-Bridge ® thus transcends passive reinforcement, evolving into an active "structural sensor" for predictive diagnostics on the structure.

(a) (b) Fig. 9. (a) Dynamic modal identification provided by the monitoring system, assessing time-dependent variations to identify damage phenomena; (b) MoniB2Safe components: 6-ch wireless 'Stress-box' for acquisition, alert triggering, alongside the wireless biaxial accelerometer. 5. Conclusions The aging Italian infrastructure stock demands a strategic shift in maintenance, prioritizing interventions that combine increased load-bearing capacity with extended durability. This analysis highlights that traditional post-tensioning techniques, while mechanically effective, exhibit significant limitations regarding inspectability and adaptability. The CAM-Bridge ® system provides an integrated engineering response to these challenges. By utilizing intrinsically durable materials (Duplex Stainless Steel), innovative mechanisms (sliding deviators and T-CAM ® ), and eliminating mortar injections, the technology moves beyond "disposable" reinforcement concepts. Its nature as an "intelligent exoskeleton" restores structural safety margins while equipping the asset with a proprietary system for continuous monitoring. This dual functionality transforms the viaduct into a "communicating" structure, capable of self diagnosing its health and supporting managers in achieving truly predictive and efficient maintenance. Acknowledgements Special thanks go to Moni2BSafe for the development of the dedicated SHM instrumentation used in the experimental campaign. Their expertise in tailoring the monitoring system to the unique characteristics of the CAM Bridge ® device was instrumental to the success of this work. References DM. 17 January 2018 – Update of the «Technical Standards for Construction» (NTC 2018). DM. no. 578 of 17 December 2020 – Adoption of Guidelines for risk classification and management, safety assessment, and monitoring of existing bridges. CSLLPP (2020) – Guidelines for risk classification and management, safety assessment, and monitoring of existing bridges. AICAP (2019) – Construction details of bridges and viaducts: durability and maintenance.