EpsilonRebars as the nervous system for the health of a hybrid footbridge
EpsilonRebars in the form of composite rods, being simultaneously the structural reinforcement for the concrete deck, were placed along the entire footbridge span of nearly 80 m. Thanks to the application of distributed optical fibre sensing technique, it was possible to perform measurements of strains, cracks, displacements (deflections) and temperatures during the hydration of early-age concrete (thermal-shrinkage strains) as well as during load tests.
DFOS Sensors Installed: EpsilonRebar
Project challenges
Benefits of using the DFOS monitoring system
Results of using the DFOS monitoring system
Measurement results can be used for verification of theoretical assumptions made at the design stage as well as for calibration of the numerical model. We analyzed loads combination: slab dead weight + thermal-shrinkage strains after the first two weeks of hydration. Because of concreting the entire span without any dilatations, the knowledge on strain distributions (both in concrete and composite panels) was extremely important.
Example results
Recomendations (optional)
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John Doe
Project partner
