Experimental Study of Vibration Mitigation of Bridge Stay Cables
Publication: Journal of Structural Engineering
Volume 125, Issue 9
Abstract
Vibration mitigation of stay cables in cable-stayed bridges using oil dampers was experimentally investigated with scaled model cables and oil dampers. The increased cable modal damping ratios attributed to oil dampers were measured, and the relationship between the increased modal damping ratio and damper damping coefficient was pursued through a series of free vibration tests. The stay cable-oil damper systems were then driven by harmonic and planar excitation. The linear and nonlinear dynamic behaviors of the systems were observed. Free vibration tests confirmed the theoretical prediction that there is an optimum damper size by which the maximum modal damping ratio can be achieved. Free vibration tests also verified the theoretical finding that cable sag may affect damper performance due to frequency avoidance. Forced vibration tests captured a number of features of nonlinear cable vibration and demonstrated that the installation of a properly selected oil damper to the cable can significantly reduce cable vibration.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Abdel-Ghaffar, A. M., and Khalifa, M. A. (1992). “Importance of cable vibration in dynamics of cable-stayed bridges.”J. Engrg. Mech., ASCE, 117(11), 2571–2589.
2.
Hikami, Y., and Shiraishi, N. (1988). “Rain-wind induced vibration of cables in cable-stayed bridge.” J. Wind Engrg. Ind. Aerodyn., 29, 409–418.
3.
Irvine, H. M. (1981). Cable structures. MIT Press, Cambridge, Mass.
4.
Kovas, I. (1982). “Zur frage der seilschwinggungen und der seidampfung.” Die Bautechnik, Berlin, Germany, 10, 325–332 (in German).
5.
Lee, C. L., and Perkins, N. C. (1995). “Three-dimensional oscillations of suspended cables involving simultaneous internal resonances.” Non-linear Dynamics, 8, 45–63.
6.
Matsumoto, M., Shiraishi, N., Shirato, H., Tsujii, M., and Kitazawa, M. (1989). “Aerodynamic behaviour of cables in cable stayed bridges.” J. Wind Engrg. Ind. Arodyn., 30, 602–609.
7.
Nayfeh, A. H., and Balachandran, B. (1989). “Modal interactions in dynamic and structural systems.” Appl. Mech. Rev., 42, S175–S201.
8.
Pacheco, B. M., Fujino, Y., and Sulekh, A. (1993). “Estimation curve for modal damping in stay cables with viscous damper.”J. Struct. Engrg., ASCE, 119(6), 1961–1979.
9.
Soong, T. T., and Dargush, G. F. (1997). Passive energy dissipation systems in structural engineering. Wiley, Chichester, England.
10.
Uno, K., Kitagawa, S., Tsutsumi, H., Inoue, A., and Nakaya, S. (1991). “A simple method of designing cable vibration dampers of cable-stayed bridges.”J. Struct. Engrg., Tokyo, 37, 037A, 789–798.
11.
Watson, S. C., and Stafford, D. (1988). “Cables in trouble.” Civ. Engrg., ASCE, 58, 38–41.
12.
Xu. Y. L., and Yu, Z. (1998). “Vibration of inclined sag cables with oil dampers in cable-stayed bridges.”J. Bridge Engrg., ASCE, 3(4), 194–203.
13.
Yoneda, M., and Maeda, K. (1989). “A study of practical estimation method for structural damping of stay cable with damper.” Proc., Canada-Japan Workshop on Bridge Aerodyn., Ottawa, 119–128.
14.
Yu, Z. ( 1997). “Vibration mitigation of sag cables in cable supported bridges using oil dampers,” PhD thesis, Hong Kong Polytechnic University, Hong Kong.
Information & Authors
Information
Published In
History
Received: Dec 23, 1997
Published online: Sep 1, 1999
Published in print: Sep 1999
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.