Author(s)

Jiawei Liu ¹, Yingchun Chen ¹

Affiliation(s)

¹ Beijing University of Technology, Beijing, China

Corresponding Author

Jiawei Liu

ABSTRACT

The detection of corrosion damage in cable-stayed bridges is a critical issue in engineering practice. This study systematically investigates this problem, employing a lightweight differential electromagnetic sensor based on eddy current testing principles as the core detection device. A simulation and experimental protocol for corrosion detection of cable-stayed bridges is developed. Pitting corrosion specimens are prepared through mechanical cutting, while uniform corrosion specimens are fabricated via electrochemical etching, providing a reliable specimen foundation for subsequent experiments. The feasibility of detecting corrosion damage in cable-stayed bridges using the lightweight differential electromagnetic sensor is validated through simulation models. Furthermore, the influence of corrosion severity and damage width on detection signals is explored. Experimental analysis confirms the sensor's capability to detect both pitting and uniform corrosion specimens, with experimental results showing excellent agreement with simulation predictions. These findings offer theoretical support and technical references for engineering detection of corrosion damage in cable-stayed bridges.

KEYWORDS

Cable-Stayed Bridge; Corrosion Damage; Eddy Current Testing; Detection Signal; Lightweight Differential Sensor

CITE THIS PAPER

Jiawei Liu, Yingchun Chen. Research on Corrosion Damage Assessment of Cable Stays Based on Eddy Current Testing. Journal of Civil Engineering and Urban Planning (2026). Vol. 8, No.1, 31-43. DOI: http://dx.doi.org/10.23977/jceup.2026.080104.

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