RESEARCH ON DYNAMIC SIMILARITY MODEL TEST OF DAMAGE DETECTION FOR TRANSMISSION TOWER

Authors

  • Zhou Ling Department of Civil Engineering, Logistical Engineering University, Chongqing, 401311, P.R.China
  • Li Ying-tao Department of Civil Engineering, Logistical Engineering University, Chongqing, 401311, P.R.China
  • Yang Chao-shan Department of Civil Engineering, Logistical Engineering University, Chongqing, 401311, P.R.China
  • Deng Zhi-ping Department of Civil Engineering, Logistical Engineering University, Chongqing, 401311, P.R.China
  • Chen Jin Department of Civil Engineering, Logistical Engineering University, Chongqing, 401311, P.R.China

DOI:

https://doi.org/10.14311/CEJ.2016.03.0018

Keywords:

Dynamic similarity, Model test, Damage detection, Transmission tower

Abstract

In order to explore the dynamic similarity model test method different from atmospheric boundary layer wind tunnel and shaking table model test, in accordance with dynamic similar theory, an elastic model of a transmission tower with 1/35 scale and 5.2m height has been designed and manufactured with thin-walled circular pipes of high-density polyethylene. The model has been tested in the laboratory for time and frequency domain responses under suddenly unloading, essential dynamic characteristic of the scale model is also analysed and compared with that of its prototype tower, the dynamic similarity of the two is confirmed. By the mathematical deduction of Wigner-Ville Distribution (WVD) signal terms of structural free vibration response, the new damage detection index with clear physical signification is forwarded for damage detection for transmission tower, the damage detection test of the scale model of transmission tower is then carried out, totally three damage cases, related with chord rod weakening, flank rods failure, different damage degrees and positions, are tested to validate the proposed damage detection index.

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References

Deng Hong-zhou, Zhu Song-ye, Wang Zhao-min, 2004. Study on dynamic behavior and wind-induced vibration response of long span transmission tower. Building Structure, Vol.34(7):25-28

Dong Dai, Hou Jiang-guo, Xiao Long, 2013. Development of calculation program for identifying main failure modes of transmission tower system. Engineering Mechanics. Vol.30(8):180-185

Xiong Tie-hua, Liang Shu-guo, Zou Liang-hao, 2009. Dominant failure modes of a transmission tower and its ultimate capacity under wind load. Engineering Mechanics. Vol. 26(12):100-104

Liu Chun-cheng, Sun Xian-he, Mou Xue-feng, 2011. Reliability analysis of high voltage transmission tower under icing load. Water Resources and Power. Vol. 29(5):156-158

Li Hong-nan, Bai Hai-feng, 2007. State-of-the-art review on studies of disaster resistance of high-voltage transmission tower-line systems. Civil Engineering. Vol. 40(2):39-46

Lam Heung-fai, Yin Tao, 2011. Dynamic reduction-based structural damage detection of transmission towers: practical issues and experiment verification.Engineering Structures. Vol. 33(5):1459-1478

Liu Gang, Yang Pu, Qin Yang, 2012. Detecting damage location of cup-towers. Journal of Vibration, Measurement & Diagnosis. Vol.32(3): 471-476

Benedikt Weber, Patrick Paultre, 2010. Damage identification in a truss tower by regularized model updating.Journal of Structural Engineering. Vol.136(3):307-316

Climente-Alarcon.V, Antoino-DAviu.J.A, Riera-Guasp.M, 2012. Application of the Wigner-Ville distribution for the detection of rotor asymmetries and eccentricity through high-order harmonics.Electric power systems research. 91:28-36

Ma Hui, Zhao Xin, Zhao Qun-chao, 2007. Application of time-frequency analysis to rotation machinery fault diagnosis. Journal of Vibration and Shock, Vol.26(3):61-63

He Min-juan, Liang Feng, Ma Ren-lel, 2010. Shaking table test for a super high steel TV tower. Journal of Vibration and Shock. Vol.33(1):77-80

Zhao Gui-feng, Xie Qiang, Liang Shu-guo, 2009. Wind tunnel test on wind resistant design of high-voltage transmission tower-line coupling system. High Voltage Engineering. Vol.35(5):1206-1213

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Published

2016-10-31

Issue

Vol. 25 No. 3 (2016)

Section

Articles

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How to Cite

RESEARCH ON DYNAMIC SIMILARITY MODEL TEST OF DAMAGE DETECTION FOR TRANSMISSION TOWER. (2016). Stavební Obzor - Civil Engineering Journal, 25(3). https://doi.org/10.14311/CEJ.2016.03.0018