Structures, and more particularly bridges in the road networks, represent major strategic and socio-economic challenges for a territory. Guaranteeing their good condition is a necessity to ensure their durability and the safety of users.
The "Connected Bridges" call for projects launched in December 2020 aims to respond to these safety and asset maintenance issues by proposing innovative and inexpensive solutions. Led by Cerema, a public institution with expertise in civil engineering, this call for projects is funded to the tune of €8 million, half of which is provided under the France Recovery Plan.
The CAHPREEX project, led by the Artelia Group in partnership with the UBO and LabSTICC, Gustave Eiffel University and APRR, is one of the 17 projects selected. The objective of the CAHPREEX project is to set up means of detecting the corrosion of shrouds and cables on bridges, via autonomous connected sensors. These sensors, developed by LabSTICC, will be integrated into the embedding zone of bridges to monitor the properties and evolution of the concrete remotely, without energy constraints.
Early detection of signs of deterioration of bridges will thus make it possible to anticipate and optimise maintenance procedures. This study will also make it possible to establish a diagnosis of the condition of engineering structures in France.
For several years now, LabSTICC has been developing expertise in the development of autonomous sensors through its participation in several projects with different applications, notably in the framework of the H2020 programme.
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