KEPCO Journal on Electric Power and Energy

Korea Electric Power Corporation (한국전력공사)
권호 표지
DOI QR코드

DOI QR Code

Study on Application of Reinforcement Device to Provide Greater Dynamic Stability for Power Transmission Towers and its Effect

  • Yang, Kyeong-hyeon (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Bae, Choon-hee (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Jeong, Nam-geun (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Kim, Doo-young (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Kim, Sung-min (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Jang, Yong-hee (KEPCO Research Institute, Korea Electric Power Corporation)
  • Received : 2015.08.24
  • Accepted : 2015.12.21
  • Published : 2016.03.30
Download PDF
⟨ Previous Next ⟩

Abstract

To verify that the friction damper used to high buildings as a kind of control technology of wind vibration can reduce dynamic behaviors of PTTs effectively, slip dampers in this paper are proposed to absorb the energy through relatively frictional movement of slip dampers applied to main post of a PTT (Power Transmission Tower) when dynamic displacement of a PTT occurs. The result of dynamic analysis is presented to determine the capacity of the damper system by controlling damping ratio on the resonance condition. It is observed that by installing slip dampers at a PTT the strain amplitudes of the main post caused by wind load are effectively reduced. Therefore it is shown that the proposed damper satisfies the strengthened wind-load design standards, and its efficacy was also validated experimentally by field testing.

Keywords

References

  1. "A Study of Design Wind Speed on Power Transmission Towers," Korea Electric Power Corporation, 1986.
  2. "Reports on Power System Damages," Cause Analysis Team for the Power Service Interruption Caused by Typhoon Maemi, 2003.
  3. "Design Standards for Steel Towers for Overhead Power Transmission," Korea Electric Power Corporation, 2004.
  4. "Dankuk University Final Report on the Development of Cost-effective and Easy-to-install Reinforcement Device for the Collapse Prevention of Steel Structures," Korea Institute of Construction and Transportation Technology, 2006.
  5. Joo, C.-G., "Development of Multi-type Damping Device for Enhancing Buildings' Seismic and Wind Resistance," Master's degree thesis, Dankuk University, 2014.
  6. Xu, Y. L., Qu, W. L. and Chen, Z. H., "Control of Wind-excited Truss Tower Using Semi-active Friction Damper", Journal of Structural Engineering, ASCE, Vol.127, No.8, pp.861-868, 2001. https://doi.org/10.1061/(ASCE)0733-9445(2001)127:8(861)
  7. Qu, W. L., Chen, Z. H. and Xu, Y. L., "Dynamic Analysis of Wind-excited Truss Tower with Friction Dampers", Computers and Structures, Vol.79, pp.2817-2831, 2001. https://doi.org/10.1016/S0045-7949(01)00151-1
  8. Kilroe, N., "Aerial Method to Mitigate Vibration on Transmission Towers", 2000 IEEE 9th International Conference on, pp. 187-194, 2000.
  9. Battista, R. C., Rodrigues, R. S., Pfeil, M. S., "Dynamics Behavior and Stability of Transmission Line Tower under Wind Forces", Journal of Wind Engineering and Industrial Aerodynamics, Vol.91, pp.1051-1067, 2003. https://doi.org/10.1016/S0167-6105(03)00052-7
  10. Albermani, F., Marhendran, M., Kitipornchai, S., "Upgrading of Transmission Towers Using a Diaphragm Brace System", Engineering Structures, Vol.26, pp753-754, 2004.
  11. Moon, B. W., Park J. H., Lee S. K., Kim J. K., Kim T. J. and Min K. W., "Performance Evaluation of a Transmission Tower by Substructure Test", Journal of Constructional Steel Research, Vol.65, pp1-11, 2009. https://doi.org/10.1016/j.jcsr.2008.04.003
  12. Park, Y. J., WEN, Y. K., and ANG, H. S., "Random Vibration of Hysteretic Systems under Bi-directional Ground Motions," Earthquake Engineering and Structural Dynamics, Vol. 14, pp543-557, 1986. https://doi.org/10.1002/eqe.4290140405
  13. Wen, Y. K., "Method for Random Vibration of Hysteric Systems," American Society of Civil Engineers Journal of Engineering Mechanics 102(EM2), p249-263, 1976.
  14. "Power Transportation Support Structure Design Standards," Standard Specifications by the Japanese Electrotechnical Standard Committee, 1997.
  15. Jeong, H.-J., Shin, D.-S., Park, J.-H., Moon, B.-W., Lee, S.-G., Min, G.-W., "Static, Dynamic, and Buckling Analyses of Power Transmission Towers under Wind Load," Journal of Computational Structural Engineering Institute of Korea, 19(4) (Serial No. 74), pp.369-374, December, 2006.
  16. Min, G.-W., Kim, H.-S., "Friction Damper Design Based on the Performance of Structures under Seismic Load," Journal of Earthquake Engineering Society of Korea, 7(6) (Serial No. 34), pp.17-24, December, 2003. https://doi.org/10.5000/EESK.2003.7.6.017
  17. "Overhead Power Transmission Insulator Design Standards," Korea Electric Power Corporation, 2004.
  18. Jang, J.-W., Kang, Y.-J., "Proposal of Reasonable Structural Analysis Mode for 345kV Power Transmission Towers Reflecting the Design Standards," Journal of Korean Society of Steel Construction, 19(4) (Serial No. 89), pp.367-381, August, 2007.
  19. Min, G.-W., Moon, B.-W., "Dynamic Characteristics of Power Transmission Towers and Reduction of Wind Responses," Journal of Architectural Institute of Korea, 22(6) (Serial No. 212), pp.21-29, June, 2006.