First fully composite bridge in Poland with distributed health monitoring
The innovative DFOS-based monitoring system was applied within the first Polish full composite bridge (composite girders + composite slabs). DFOS strain fibres were installed on the surface in the production hall, and then pre-prepared smart elements were delivered on-site. The syste ’s design, including the appropriate arrangement of the fibres, allowed us to utilise the idea of both strain sensing with the EpsilonSensor and vertical displacement sensing with the 3DSensor.
DFOS Sensors Installed: Epsilon Sensor and 3DSensor
Project challenges
Benefits of using the DFOS monitoring system
Results of using the DFOS monitoring system
The DFOS-based monitoring system was used to verify the bridge’s structural performance during its load tests and during long-term monitoring. Thanks to the negligible costs of the DFOS fibres, there was no need to limit the number of measurement sections. The figure below summarises example strain results obtained during the load tests, confirming very good compliance with other reference and spot techniques.
Example results
Recomendations (optional)
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John Doe
Project partner
