Damage Assessment and Strengthening of Transmission Line Tower at Component Level

Authors

  • Husain Rangwala
  • S. Chandravadani
  • R. Balagopal

DOI:

https://doi.org/10.37591/josem.v3i3.4096

Abstract

 

The damage assessment and strengthening of transmission tower is an important factor to be considered for life enhancement. The transmission towerdeteriorate due to corrosion and ageing. In this paper, analytical and experimental investigation is carried out at component level on cantilever beam made of square hollow and angle section. The damage is inflicted by reducing the stiffness of the beam. The damage is assessed based on frequency response measurements. The damaged beam is strengthened through GFRP (Glass Fibre Reinforced Polymer) wrapping using araldite bonding. The analytical investigation is carried out using ANSYS software. The enhanced strength of the beam due to GFRP wrapping is analyzed and the results of experimental and analytical investigations are compared.

 

Keywords:Damage assessment, strengthening, steel beam, cantilever beam, frequency response

Cite this Article

Husain Rangwala, S. Chandravadani, R. Balagopal.Damage Assessment and Strengthening of Transmission Line Tower at Component Level. Journal of Structural Engineering and Management. 2016; 3(3): 9–15p.


References

Dawson B. Vibration condition monitoring techniques for rotating machinery. The Shock and Vibration Digest. 1976; 8(12): 3p.

Rytter A. Vibration based inspection of civil engineering structures. PhD thesis, Dept. of Building Technology and Structural Engineering.

Pandey AK, Biswas M, Samman MM. Damage detection from changes in curvature mode shapes. Journal of Sound and Vibration.1991; 145(2):321–332p.

Kahl K, Sirkis JS. Damage detection in beam structures using subspace rotation algorithm with strain data.AIAA Journal.1996; 34(12): 2609–2614p.

Cawley P, Adams RD. The Location of Defects in Structures from Measurements of Natural Frequencies. J. Strain Analysis. 1979; 14(2): 49–57p.

Ostachowicz WM, Krawczuk M. Vibration Analysis of a Cracked Beam. Computers & Structures. 1990; 36(2): 245–50p.

Kim JT.Assessment of Relative Impact of Model Uncertainty on the Accuracy of Nondestructive Damage Detection in Structures. Ph.D. Dissertation, Texas A&M University, USA. 1993.

Sundermeyer JN, Weaver RL.On Crack Identification and Characterization in a Beam by Nonlinear Vibration Analysis.TAM Report No. 74, UILU-ENG-93-604, Univ. of Illinois. 1993.

Tiwari MK,Chandak R, Yadav RK. Strengthening of reinforced concrete circular columns using glass fibre reinforced polymers.International Journal of Engineering Research and Applications.2014; 4(4): 50–54p.

Al-saidy, Fred wayne Klaiber and Wipf TJ. Strengthening of steel–concrete composite girders using carbon fiber reinforced polymer plates.Construction and building materials. 2007; 21 (2):295–302p.

Bauchau OA, Craig JI.Structural Analysis. Springer Publication.

Umesha PK, Sivasubramaniam K, Maai R, T. R. S., Arunachalam K.Wavelets in structural health monitoring.New Building materials & Construction World. 2007a; 12(10): 110–130p.

Umesha PK, Ravichandran R, Sivasubramaniam K.Damage identification and quantification in beams using wavelet analysis. Proceedings of International Conference on Recent Developments in Structural Engineering (RDSE-2007) Manipal Institue of Technology, Manipal-576104, India. 2007b; 177–185p.

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Published

2020-06-16

Issue

Vol. 3 No. 3 (2016)

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Articles

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