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Investigation on Galloping of D-Shape Iced 6-Bundle Conductors in Transmission Tower Line

  • Structural Engineering
  • Published:
KSCE Journal of Civil Engineering Aims and scope

Abstract

The first comprehensive test base of electrical test transmission line in China has been established. Galloping response characteristics of real test tower-line system covered with D-shape ice model under natural wind load has been recorded. According to the structural details of the test tower-line, the detailed numerical model of the three spans tower-line system has been set up by nonlinear finite element method (FEM). Then, the digital stochastic wind field is presented. Galloping behaviors of the D-shape iced 6-bundle conductors in the test line under stochastic wind field is numerically simulated. Finally, the dynamic response of displacements, galloping traces, galloping modes, and frequencies are obtained. The numerical simulation results are consistent with the measured galloping characteristics results of the test transmission tower-line, which verifies the efficiency of the numerical model. It is demonstrated that the established FEM numerical method can be applied to investigate galloping behaviors of tower-line. Meanwhile, based on the numerical simulation results, the variation of stress and displacement of tower during galloping is also discussed.

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Acknowledgements

This work is in part financially supported by the National Natural Science Foundation of China (Grant No. 51507106 and 51778381), Science and technology research project of Chongqing Education Commission (KJ130409), Science Foundation of Henan Electric Power Research Institute (SGTYHT/15-JS-194) and China State Scholarship Fund (201708515019) during Mengqi Cai in Columbia University as the research scholar.

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Authors and Affiliations

  1. School of Architecture and Civil Engineering, Chengdu University, Chengdu, 670706, China

    Mengqi Cai

  2. Failure Mechanics & Engineering Disaster Prevention and Mitigation, Key Laboratory of Sichuan Province, Sichuan University, Chengdu, 670065, China

    Mengqi Cai

  3. Henan Electric Power Test Institute, Zhengzhou, 450000, China

    Xiaohui Yang

  4. China Aerodynamics Research and Development Center, Mianyang, 621000, China

    Hanjie Huang

  5. State Grid Sichuan Integrated Energy Service Co. Ltd., Chengdu, 610072, China

    Linshu Zhou

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  1. Mengqi Cai
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  2. Xiaohui Yang
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  3. Hanjie Huang
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  4. Linshu Zhou
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Correspondence to Hanjie Huang.

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Cai, M., Yang, X., Huang, H. et al. Investigation on Galloping of D-Shape Iced 6-Bundle Conductors in Transmission Tower Line. KSCE J Civ Eng 24, 1799–1809 (2020). https://doi.org/10.1007/s12205-020-0595-z

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  • DOI: https://doi.org/10.1007/s12205-020-0595-z

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