American Journal of Mechanics and Applications

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Experimental Study on the Cable Tension Based on Non-Contact Dynamic Deflection Equipment

Received: 25 August 2020    Accepted:     Published: 17 October 2020
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Abstract

For the contact and wired measurement technology of cable tension, the factors of complicated bridge site conditions, data acquisition and transmission, wave data processing and sensor contact should be considered in practical application, which affect seriously the measure result accuracy, work efficiency and the measure feasibility. In order to improve the limitation of the existing cable tension measurement technology, the feasibility and key factors of non-contact dynamic deflection measurement technology is studied. A cable specimen with length of 12m was designed and made, and the steel strand is used in it, and the non-contact vibration testing device is used. The frequency and tension of the cable and the strain of steel strands are analyzed, and the results show that the effect of measure target position on the fundamental frequency of the cable is obviously little, and the tension of the subsequent steel strand can decrease the tension strain of the stretched steel strand, that is, the tension of the stretched steel strand is reduced. Furthermore, the maximum difference between calculated and measured tension of the cable is about 17.7% during loading stage. When the unloaded cable tension is less than 20.6%, the difference between calculated and measured tension is less than 10.0%. It can be seen that the tension and tension loss of the cable can be accurately estimated by using the non-contact dynamic deflection technology, and it can improve the work efficiency and the measure feasibility due to the less measure targets and larger data transmission distance.

DOI 10.11648/j.ajma.20200802.11
Published in American Journal of Mechanics and Applications (Volume 8, Issue 2, June 2020)
Page(s) 25-32
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Cable, Tension, Dynamic Test, Non-contact Dynamic Deflection Test, Fundamental Frequency

References
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[5] R. Mohammed. An insight into the NDT of steel cables by acoustic emission [C]. Science and Technology: Proceedings of the 14th World Conference on Non-Destructive Testing. New Delhi: Pennsylvania State University, 1996: 201-210.
[6] P O. Paulson. Continuous acoustic monitoring of suspension bridges and cable stays [C]. Structural Materials Technology III. San Antonio: SPIE Society of Photo-Optical Instrumentation Engineers, 1998: 205-213.
[7] D S. Li, J P. Ou. Acoustic emission characteristics and damage evolution model of steel strands in tensile test [J]. Journal of Highway and Transportation Research and Development, 2007, 24 (9): 57-60. In Chinese.
[8] L L. Tian. Research on magnetic optic image nondestructive testing technology for defects of conductive material [D]. Electronic Science and Technology of China, 2018. In Chinese.
[9] R. Christen, A. Bergamini, M. Motavalli. Three-dimensional localization of defects in stay cables using magnetic flux leakage methods [J]. Journal of Nondestructive Evaluation, 2003, 22 (3): 93-101.
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[11] W M Yan, X J Xu, Y. Li, et al. Cable force measurement based on vibration frequency method and optimization function [J]. Journal of Highway and Transportation Research and Development, 2015, 32 (11): 61-67. In Chinese.
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  • APA Style

    Zhenhua Dong, Jinquan Zhang, Pengfei Li, Yan Mao. (2020). Experimental Study on the Cable Tension Based on Non-Contact Dynamic Deflection Equipment. American Journal of Mechanics and Applications, 8(2), 25-32. https://doi.org/10.11648/j.ajma.20200802.11

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    ACS Style

    Zhenhua Dong; Jinquan Zhang; Pengfei Li; Yan Mao. Experimental Study on the Cable Tension Based on Non-Contact Dynamic Deflection Equipment. Am. J. Mech. Appl. 2020, 8(2), 25-32. doi: 10.11648/j.ajma.20200802.11

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    AMA Style

    Zhenhua Dong, Jinquan Zhang, Pengfei Li, Yan Mao. Experimental Study on the Cable Tension Based on Non-Contact Dynamic Deflection Equipment. Am J Mech Appl. 2020;8(2):25-32. doi: 10.11648/j.ajma.20200802.11

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  • @article{10.11648/j.ajma.20200802.11,
      author = {Zhenhua Dong and Jinquan Zhang and Pengfei Li and Yan Mao},
      title = {Experimental Study on the Cable Tension Based on Non-Contact Dynamic Deflection Equipment},
      journal = {American Journal of Mechanics and Applications},
      volume = {8},
      number = {2},
      pages = {25-32},
      doi = {10.11648/j.ajma.20200802.11},
      url = {https://doi.org/10.11648/j.ajma.20200802.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajma.20200802.11},
      abstract = {For the contact and wired measurement technology of cable tension, the factors of complicated bridge site conditions, data acquisition and transmission, wave data processing and sensor contact should be considered in practical application, which affect seriously the measure result accuracy, work efficiency and the measure feasibility. In order to improve the limitation of the existing cable tension measurement technology, the feasibility and key factors of non-contact dynamic deflection measurement technology is studied. A cable specimen with length of 12m was designed and made, and the steel strand is used in it, and the non-contact vibration testing device is used. The frequency and tension of the cable and the strain of steel strands are analyzed, and the results show that the effect of measure target position on the fundamental frequency of the cable is obviously little, and the tension of the subsequent steel strand can decrease the tension strain of the stretched steel strand, that is, the tension of the stretched steel strand is reduced. Furthermore, the maximum difference between calculated and measured tension of the cable is about 17.7% during loading stage. When the unloaded cable tension is less than 20.6%, the difference between calculated and measured tension is less than 10.0%. It can be seen that the tension and tension loss of the cable can be accurately estimated by using the non-contact dynamic deflection technology, and it can improve the work efficiency and the measure feasibility due to the less measure targets and larger data transmission distance.},
     year = {2020}
    }
    

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  • TY  - JOUR
    T1  - Experimental Study on the Cable Tension Based on Non-Contact Dynamic Deflection Equipment
    AU  - Zhenhua Dong
    AU  - Jinquan Zhang
    AU  - Pengfei Li
    AU  - Yan Mao
    Y1  - 2020/10/17
    PY  - 2020
    N1  - https://doi.org/10.11648/j.ajma.20200802.11
    DO  - 10.11648/j.ajma.20200802.11
    T2  - American Journal of Mechanics and Applications
    JF  - American Journal of Mechanics and Applications
    JO  - American Journal of Mechanics and Applications
    SP  - 25
    EP  - 32
    PB  - Science Publishing Group
    SN  - 2376-6131
    UR  - https://doi.org/10.11648/j.ajma.20200802.11
    AB  - For the contact and wired measurement technology of cable tension, the factors of complicated bridge site conditions, data acquisition and transmission, wave data processing and sensor contact should be considered in practical application, which affect seriously the measure result accuracy, work efficiency and the measure feasibility. In order to improve the limitation of the existing cable tension measurement technology, the feasibility and key factors of non-contact dynamic deflection measurement technology is studied. A cable specimen with length of 12m was designed and made, and the steel strand is used in it, and the non-contact vibration testing device is used. The frequency and tension of the cable and the strain of steel strands are analyzed, and the results show that the effect of measure target position on the fundamental frequency of the cable is obviously little, and the tension of the subsequent steel strand can decrease the tension strain of the stretched steel strand, that is, the tension of the stretched steel strand is reduced. Furthermore, the maximum difference between calculated and measured tension of the cable is about 17.7% during loading stage. When the unloaded cable tension is less than 20.6%, the difference between calculated and measured tension is less than 10.0%. It can be seen that the tension and tension loss of the cable can be accurately estimated by using the non-contact dynamic deflection technology, and it can improve the work efficiency and the measure feasibility due to the less measure targets and larger data transmission distance.
    VL  - 8
    IS  - 2
    ER  - 

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Author Information
  • Research Institute of Highway Science of Transport Ministry, Beijing, China; Key Laboratory of Old Bridge Inspection and Reinforcement Technology Industry, Beijing, China

  • Research Institute of Highway Science of Transport Ministry, Beijing, China; Key Laboratory of Old Bridge Inspection and Reinforcement Technology Industry, Beijing, China

  • Research Institute of Highway Science of Transport Ministry, Beijing, China; Key Laboratory of Old Bridge Inspection and Reinforcement Technology Industry, Beijing, China

  • Research Institute of Highway Science of Transport Ministry, Beijing, China; Key Laboratory of Old Bridge Inspection and Reinforcement Technology Industry, Beijing, China

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