ABSTRACT
This paper presents a number of recently installed Structural Health Monitoring (SHM) systems of concrete bridges, which measure high-frequency parameters and thus enable a proper understanding of the structures’ behavior. This greatly reduces uncertainties relating to material properties and structural capacity, and optimizes inspection and maintenance programs. The diverse range of applications presented, designed in collaboration with structure owners and design engineers, includes concrete box girder bridges in a subsidence area, an old arch bridge subject to structural retrofitting and a cracked concrete railway viaduct. These case studies, based on both static and dynamic approaches, demonstrate the usefulness and ease of use of such systems, and the enormous gains in efficiency they offer over alternative manual monitoring methods.
