Optical fiber sensor for prestressed concrete structures bond behaviors measurements
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AuthorRodríguez Cobo, Luis; Carrascal Vaquero, Isidro Alfonso; Quintela Incera, Antonio; Polanco Madrazo, Juan Antonio; López Higuera, José Miguel
During the slack period of precast concrete structures fabrication, the prestressing force is transferred, by adhesion to concrete being the armor compliant behaviors, up today, a still pending matter. To contribute to a better understanding of the subject, a new quasi-distributed optical fiber sensor system is specifically designed, fabricated and embedded into a prestressed concrete prismatic beam. The experimental results are presented, discussed and finally, conclusions are extracted. The fiber transducer is based on Brag grating technology and a new custom encapsulation.