Abstract
As main load-carrying components of a cable-supported bridge, the integrity of the steel cables directly affects the structure safety and durability of the bridge during construction and operation. Therefore, monitoring cable tension in an efficient and accurate way plays a significant role in the safety assessment of the bridge structure. Traditional methods, such as strain-based and vibration-based methods, are difficult to measure cable tension accurately. Therefore, based on the elasto-magnetic (EM) effect and magneto-electric (ME) principle, the elasto-magneto-electric (EME) sensor was developed by the present author, in order to measure the total tension in cables. This paper presents an experimental study and a real application of the EME sensor for large-diameter cables. The experimental results prove that the large-diameter EME sensor can realize the long-term, non-destructive, and high-precision tension monitoring of steel cables with a relative error of less than 1.8%.
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Acknowledgement
This work was funded by the National Key R&D Program of China (2018YFE0125400) and the National Natural Science Foundation of China (U1709216).
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Hu, X., Duan, Y., Luo, Y., Yun, C. (2021). Development of Elasto-Magneto-Electric Sensors for Total-Stress in Large-Diameter Cables. In: Wang, C.M., Dao, V., Kitipornchai, S. (eds) EASEC16. Lecture Notes in Civil Engineering, vol 101. Springer, Singapore. https://doi.org/10.1007/978-981-15-8079-6_5
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DOI: https://doi.org/10.1007/978-981-15-8079-6_5
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