Flutter Mode Transition of a Double-Main-Span Suspension Bridge in Full Aeroelastic Model Testing
Publication: Journal of Bridge Engineering
Volume 19, Issue 7
Abstract
The Maanshan Bridge over the Yangtze River in China is a new long-span suspension bridge with double main spans of and a closed streamlined cross section of single box deck. The flutter performance of the bridge was investigated via a wind tunnel test of a full bridge aeroelastic model at a geometric scale of 1:211. The test was conducted in both smooth and simulated boundary layer wind fields with various combinations of wind yaw and inclination angles. A unique and interesting flutter-mode transition behavior was observed in smooth flow. As wind speed approaches the flutter threshold, the model oscillation with the first antisymmetric torsional mode (A-T-1) transfers to alternate torsional oscillation between double spans, then transfers to oscillation with the first symmetric torsional mode (S-T-1), and then violent oscillation occurs. The mechanism of the phenomenon is unknown, and there may be no numerical method to simulate it to date. One possible reason for the flutter-mode transition is that a nonlinear aerodynamic self-excited force acting on the middle pylon dragged the full aeroelastic model into soft-type flutter. The other inference is that internal resonance occurred, in which energy transforms between two spans and between modes A-T-1 and S-T-1 at the same time.
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Acknowledgments
The authors gratefully acknowledge the following organizations for their support of the work described in this paper: the National Natural Science Foundation of China under grant 51208104, a project supported by the Natural Science Foundation of Jiangsu Province (grant No. BK2012344), the Research Fund for the Doctoral Program of Higher Education of China (RFDP) under grant 20120092120018, and a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).
References
ANSYS 9.0 [Computer software]. Canonsburg, PA, ANSYS.
Bartoli, G., and Mannini, C. (2008). “A simplified approach to bridge deck flutter.” J. Wind Eng. Ind. Aerodyn., 96(2), 229–256.
Cai, C. S., and Albrecht, P. (2000). “Flutter derivatives based random parametric excitation aerodynamic analysis.” Comput. Struct., 75(5), 463–477.
Chen, X., and Kareem, A. (2003). “Efficacy of tuned mass dampers for bridge flutter control.” J. Struct. Eng., 1291–1300.
Chen, X., Kareem, A., and Matsumoto, M. (2001). “Multimode coupled flutter and buffeting analysis of long span bridges.” J. Wind Eng. Ind. Aerodyn., 89(7–8), 649–664.
Chen, X., Matsumoto, M., and Kareem, A. (2000). “Time domain flutter and buffeting response analysis of bridges.” J. Eng. Mech., 7–16.
Chen, Z. Q., Liu, M. G., Hua, X. G., and Mou, T. M. (2012). “Flutter, galloping, and vortex-induced vibrations of H-Section hangers.” J. Bridge Eng., 500–508.
Diana, G., Resta, F., and Rocchi, D. (2008). “A new numerical approach to reproduce bridge aerodynamic non-linearities in time domain.” J. Wind Eng. Ind. Aerodyn., 96(10–11), 1871–1884.
Diana, G., Rocchi, D., and Argentini, T. (2013). “An experimental validation of a band superposition model of the aerodynamic forces acting on multi-box deck sections.” J. Wind Eng. Ind. Aerodyn., 113(Feb), 40–58.
Forsberg, T. (2001). “Multi-span suspension bridges.” Int. J. Steel Struct., 11(1), 63–73.
Ge, Y. J., et al. (2008). “Analysis and wind tunnel study on wind-resistant performance of the Maanshan Bridge over Yangtze River—part I: Wind tunnel test of sectional model,” Research Rep. No. WT200802, State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji Univ., Shanghai, China (in Chinese).
Ge, Y. J., and Tanaka, H. (2000). “Aerodynamic flutter analysis of cable-supported bridges by multi-mode and full-mode approaches.” J. Wind Eng. Ind. Aerodyn., 86(2–3), 123–153.
Ge, Y. J., and Xiang, H. F. (2011). “Extension of bridging capacity of cable-supported bridges using double main spans or twin parallel decks solutions.” Struct. Infrastruct. Eng., 7(7–8), 551–567.
Jain, A., Jones, N. P., and Scanlan, R. H. (1996). “Coupled flutter and buffeting analysis of long-span bridges.” J. Struct. Eng., 716–725.
Katsuchi, H., Jones, N. P., and Scanlan, R. H. (1999). “Multimode coupled flutter and buffeting analysis of the Akashi-Kaikyo Bridge.” J. Struct. Eng., 60–70.
Manabu, I. (2008). “21st century super long span bridges in Japan.” Documents of China-Japan Workshop on the Technologies of Large Span Bridges, Tongji Univ., Shanghai, China.
Namini, A., Albrecht, P., and Bosch, H. (1992). “Finite element-based flutter analysis of cable-suspended bridges.” J. Struct. Eng., 1509–1526.
Sayed, M., and Kame, M. (2012). “1:2 and 1:3 internal resonance active absorber for non-linear vibrating system.” Appl. Math. Modell., 36(1), 310–332.
Scanlan, R. H. (1978). “The action of flexible bridge under wind, I: Flutter theory.” J. Sound Vib., 60(2), 187–199.
Stoykov, S., and Ribeiro, P. (2011). “Nonlinear free vibrations of beams in space due to internal resonance.” J. Sound Vib., 330(18–19), 4574–4595.
Yoshida, O., Okuda, M., and Moriya, T. (2004). “Structural characteristics and applicability of four-span suspension bridge.” J. Bridge Eng., 453–463.
Zhang, W. M., Ge, Y. J., and Levitan, M. L. (2011). “Aerodynamic flutter analysis of a new suspension bridge with double main spans.” Wind Struct., 14(3), 187–208.
Zhang, X.-J. (2008). “Wind stability of three-tower suspension bridges.” Wind Struct., 11(4), 341–344.
Zhang, X.-J. (2010). “Study of structural parameters on the aerodynamic stability of three-tower suspension bridge.” Wind Struct., 13(5), 471–485.
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© 2014 American Society of Civil Engineers.
History
Received: Apr 26, 2013
Accepted: Mar 18, 2014
Published online: Apr 17, 2014
Published in print: Jul 1, 2014
Discussion open until: Sep 17, 2014
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