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http://dx.doi.org/10.5050/KSNVN.2006.16.4.420

Rotational Viscoelastic Dampers for the Mitigation of Wind Loads on Transmission Tower Transferred from Transmission Lines  

Moon, Byoung-Wook (단국대학교 건축공학과)
Min, Kyung-Won (단국대학교 건축공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.16, no.4, 2006 , pp. 420-427 More about this Journal
Abstract
In this study, wind loads transmitted to a transmission tower from transmission lines are mitigated using rotational viscoelastic dampers. First, the wind load characteristics in a transmission tower is investigated considering the effect of the transmission lines through stochastic analysis. The assemblage of the transmission line and insulator are modeled as a double pendulum system connected to the SDOF model of the tower. From the result of the stochastic analysis, the background component of the overturing moment caused by the wind loads acting on the transmission lines are found to have considerable portion in the total overturning moment. Based on this observation result, a strategy Installing rotational viscoelastic damper (VED) between tower arm and transmission line is proposed for the mitigation of the transmission line reactions, which play a role as dynamic loads on a transmission tower. For the purpose of verification, time history analysis is conducted for different wind velocities and VED parameters. The analysis result shows that the rotational VED is effective for the mitigation of the background component rather than the resonance component of the transmission line reactions and achieves the reduction ratio of 50% even for higher wind speed.
Keywords
Transmission Tower; Wind Load; Rotational Viscoelastic Damper;
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1 건설핵심기술 연구개발사업 연차실적 및 계획서 2004. 철골조 시설물의 붕괴를 방지하는 설치 용이한 경제적인 보강기구 개발, 과제번호 : CI03A2000010-03A0200-01010
2 Momomura Y., Marukawa H., Okamura T. and Hongo E., 1997, Full-scale Measurements of Wind-induced Vibration of a Transmission Line System in a Mountainous Area, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 72, pp. 241-252   DOI   ScienceOn
3 Yasui, H., Marukawa H., Momoura Y. and Ohkuma T., 1999, Analytical Study on Wind-induced Vibration of Power Transmission Towers, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 83,pp. 431-441   DOI   ScienceOn
4 Battista, R. C., Rodrigues and R. S., 2003, Dynamic Behavior and Stability of Transmission Line Towers under Wind Forces, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 91, pp.1051-1067   DOI   ScienceOn
5 Tesar, A., Kuglerova, J., 2000, Tuned Vibration Control of Overhead Line Conductors, International Journal for Numerical Methods in Engineering, Vol. 48, pp. 1215-1239   DOI   ScienceOn
6 Chang, K. K., Soong, T. T., Oh, S.-T. and Lai, M. L., 1995, Seismic Behavior of Steel Frame with Added Viscoelastic Dampers, Journal of Structural Engineering, Vol. 121, No. 10, pp. 1418-1426   DOI   ScienceOn
7 Lai, M. L., Chang, K. C., Soong, T. T., Hao, D.S., Yeh, Y. C., 1995, Full-scale Viscoelastically Damped Steel Frame, Journal of Structural Engineering, Vol. 121, No. 10, pp. 1443-1447   DOI   ScienceOn
8 Min, K.-W., Kim, J., Lee, S.-H., 2004, Vibration Test of 5-storey Steel Frame with Viscoelastic Dapers. Engineering Structures, Vol. 26, pp. 831-839   DOI   ScienceOn
9 Zhang R. H., Soong T. T, 1992, Seismic Design of Viscoelastic Dampers for Structural Applications. Journal of Structural Engineering, Vol. 118, pp. 1375-1392   DOI
10 Lee, S.-H., Son, D.-I., Kim, J.-K., Min, K.-W., 2004, Optimal Design of Viscoelastic Dampers Using Eigenvalue Assignment. Earthquake Engineering & Structural Dynamics, Vol. 33, No.4, pp. 521-542   DOI   ScienceOn
11 Park, J.-H., Kim, J.-K., Min, K-W., 2004, Optimal Design of Added Viscoelasticdampers and Supporting Braces. Earthquake Engineering & Structural Dynamics, Vol. 33, No.4, pp. 465-484   DOI   ScienceOn
12 Matheson, M. J. and Holmes, J. D. 1981, Simulation of the Dynamic Response of Transmission Lines in Strong Winds, Engineering Structure, Vol. 3, pp. 105-110   DOI   ScienceOn
13 Ischueller G. and Shinozuka M., 1987, Stochastic Methods In Structural Dynamics, Martinus NijhoffI Publishers
14 http://www.damptech.com/products/ products.htm
15 Computers and Structures, 2002, SAP2000 Analysis Reference Manual
16 Diana, G., Manenti, A., Pirotta, C., Zuin A., 2003, Stockbridge-type Damper Effectiveness Evaluation: Part II - The Influence of the Impedance Matrix Terms on the Energy Dissipated, IEEE Transactions on Power Delivery, Vol. 18, No.4, pp. 1470-1477   DOI   ScienceOn
17 Markiewitz, M., 1995, Optimum Dynamic Characteristics of Stockbridge Dampers for Dead-end Spans, Journal of Sound and Vibration, Vol. 188, No.2, pp. 243-256   DOI   ScienceOn
18 Soong, T. T. and Dargush, G. F., 1997, Passive Energy Dissipation Systems in Structural Engineering, John Wiley & Sons
19 Shen, K. L., Soong, T. T., 1995, Modeling of Viscoelastic Dampers for Structural Applications. Journal of Engineering Mechanics, Vol. 121, No.6, pp. 694-701   DOI   ScienceOn
20 Diana, G., Cigada, A., Belloli, M., Vanali, M., 2003, Stockbridge-type Damper Effectiveness Evaluation: Part I - Comparison Between Tests on Span and on the Shaker, IEEE Transactions on Power Delivery, Vol. 18, No.4, pp. 1462-1469   DOI   ScienceOn
21 Davenport, A. G., 1964, Note on the Distribution of the Largest Value of a Random Function with Application to Gust loading. Proceedings of the Institution of Civil Engineers, London, Vol. 28, pp. 187-196
22 Holmes J. D., 1994, Along-wind Response of Lattice Towers- I, Engineering Structures, vol. 16, No.4, pp. 287-291   DOI   ScienceOn
23 Zhang, R.-H., Soong, T. T., 1989, Seismic Response of Steel Frame Structures with Added Viscoelstic Dampers. Earthquake Engineering & Structural Dynamics, Vol. 18, pp. 389-396   DOI   ScienceOn
24 Shen, K. L., Soong, T. T, Chang, K. C. Lai, M. L., 1995, Seismic Behaviour of Reinforced Concrete frame a with Added Viscoelastic Dampers. Engineering Structures, Vol. 17, No.5, pp. 372-380   DOI   ScienceOn
25 Shukla A. K., Datta T. K., 1999, Optimal use of Viscoelastic Dampers in Building Frames for Seismic Response. Journal of Structural Engineering, Vol. 125, pp. 401-409   DOI   ScienceOn