ABSTRACT
The need of a continuous re-qualification of infrastructures, faced with an increasing demand for mobility, requires the definition of reliable methods, from technical and economical points of view, to evaluate the current conditions of an asset and predict its future state when affected by damages. Advanced SHM solutions could be usefully implemented to gather relevant information about the behavior of bridges and tunnels, through industrial technological systems that must be reliable, cost effective and have suitable performances to assess structural conditions. However, several monitoring solutions are available today, with very different characteristics, performance and costs, so it is difficult both to evaluate how these systems, often tested only in laboratory, perform under operating conditions and to find the right tradeoff between technical and economic needs. The case study of an Italian highway viaduct is presented in this work with the aim to compare different SHM solutions.
