Print Email Facebook Twitter Monitoring Shear Behavior of Prestressed Concrete Bridge Girders Using Acoustic Emission and Digital Image Correlation Title Monitoring Shear Behavior of Prestressed Concrete Bridge Girders Using Acoustic Emission and Digital Image Correlation Author Zhang, F. (TU Delft Concrete Structures) Zarate Garnica, G.I. (TU Delft Concrete Structures) Yang, Y. (TU Delft Concrete Structures) Lantsoght, E.O.L. (TU Delft Concrete Structures; Universidad San Francisco de Quito) Sliedrecht, Henk (Rijkswaterstaat) Date 2020 Abstract In the Netherlands, many prestressed concrete bridge girders are found to have insufficient shear–tension capacity. We tested four girders taken from a demolished bridge and instrumented these with traditional displacement sensors and acoustic emission (AE) sensors, and used cameras for digital image correlation (DIC). The results show that AE can detect cracking before the traditional displacement sensors, and DIC can identify the cracks with detailed crack kinematics. Both AE and DIC methods provide additional information for the structural analysis, as compared to the conventional measurements: more accurate cracking load, the contribution of aggregate interlock, and the angle of the compression field. These results suggest that both AE and DIC are suitable options that warrant further research on their use in lab tests and field testing of prestressed bridges. Subject Acoustic emission measurementsCrack identificationCrackingDigital image correlationPrestressed concrete bridge girdersShear To reference this document use: http://resolver.tudelft.nl/uuid:69c83e64-14fe-4d48-b4ec-726bd54f546b DOI https://doi.org/10.3390/s20195622 ISSN 1424-8220 Source Sensors, 20 (19), 1-21 Part of collection Institutional Repository Document type journal article Rights © 2020 F. Zhang, G.I. Zarate Garnica, Y. Yang, E.O.L. Lantsoght, Henk Sliedrecht Files PDF sensors_20_05622.pdf 9.87 MB Close viewer /islandora/object/uuid:69c83e64-14fe-4d48-b4ec-726bd54f546b/datastream/OBJ/view