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Open AccessArticle

Monitoring Shear Behavior of Prestressed Concrete Bridge Girders Using Acoustic Emission and Digital Image Correlation

1
Department of Engineering Structures, Delft University of Technology, 2628 CN Delft, The Netherlands
2
Politécnico, Universidad San Francisco de Quito, Quito EC 17015, Ecuador
3
Rijkswaterstaat, Ministry of Infrastructure and Water Management, 3526 LA Utrecht, The Netherlands
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(19), 5622; https://doi.org/10.3390/s20195622
Received: 25 August 2020 / Revised: 23 September 2020 / Accepted: 28 September 2020 / Published: 1 October 2020
(This article belongs to the Special Issue Innovative Sensors for Civil Infrastructure Condition Assessment)
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. View Full-Text
Keywords: acoustic emission measurements; crack identification; cracking; digital image correlation; prestressed concrete bridge girders; shear acoustic emission measurements; crack identification; cracking; digital image correlation; prestressed concrete bridge girders; shear
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MDPI and ACS Style

Zhang, F.; Zarate Garnica, G.I.; Yang, Y.; Lantsoght, E.; Sliedrecht, H. Monitoring Shear Behavior of Prestressed Concrete Bridge Girders Using Acoustic Emission and Digital Image Correlation. Sensors 2020, 20, 5622. https://doi.org/10.3390/s20195622

AMA Style

Zhang F, Zarate Garnica GI, Yang Y, Lantsoght E, Sliedrecht H. Monitoring Shear Behavior of Prestressed Concrete Bridge Girders Using Acoustic Emission and Digital Image Correlation. Sensors. 2020; 20(19):5622. https://doi.org/10.3390/s20195622

Chicago/Turabian Style

Zhang, Fengqiao; Zarate Garnica, Gabriela I.; Yang, Yuguang; Lantsoght, Eva; Sliedrecht, Henk. 2020. "Monitoring Shear Behavior of Prestressed Concrete Bridge Girders Using Acoustic Emission and Digital Image Correlation" Sensors 20, no. 19: 5622. https://doi.org/10.3390/s20195622

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