Case Studies

The monitoring allowed the real-time control of the response of the deck of a span during open traffic restoration works, and was subsequently extended to the entire viaduct for static and dynamic behavior control over time. The Model Driven monitoring approach allowed the investigation of the main damage scenarios of the structure and the definition of Performance Indicators on which to set threshold values and conditions.

The monitoring was activated to verify the structural behavior of the deck under traffic loads, in order to prevent the development of potential mechanisms of rupture or damage, given the fragile collapse of one of the spans during the planned demolition phases of the bridge. The measured bridge deformations were compared in real time with the established threshold levels for the work, allowing for the evaluation of structural safety.

Continuous monitoring aims at controlling the static and dynamic behavior of the structure, and structural interpretation is supported by numerical modeling using nonlinear finite element methods, following the principles of the Model Driven Monitoring approach. Performance indicators have been derived through the use of best fitting genetic algorithms and simulation of the most significant damage scenarios, for the definition of threshold conditions for the operational behavior of the structure.