Wind Tunnel Test and the Analysis of Buffeting Performance of Free-Standing Tower of Cable-Stayed Bridge under Yaw Wind

Abstract:

The buffeting performance of free-standing tower of JiangHai Navigation Channel Bridge, a cable-stayed bridge, under yaw wind is investigated by means of wind tunnel test of aeroelastic model. It is found that the variation of buffeting response of free-standing tower with wind yaw angle is not monotonous. The lateral buffeting response on the top of the free-standing tower reach their minimal values and maximal values at around 150°and 180°of wind yaw angle respectively and the longitudinal buffeting response attain their maximal values at around 90°of wind yaw angle. Also, at the 2/3 height of the tower the lateral buffeting response and torsional buffeting response get their minimal values at around 150°of wind yaw angle, and at around 180°achieve the maximal values. It is also seen that, the buffeting response changes with the wind speed at a conic curve approximately.

• Periodical: Advanced Materials Research (Volumes 532-533)
• Pages: 215-219
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.532-533.215
• Online since: June 2012
• Authors: Guo Hui Zhao, Yu Li, Hua Bai
• Keywords: Aeroelastic Model, Buffeting, Free-Standing, Inclined Wind, Tower

References

[1] Liu, J.X., Li, J.W., et al., 2011. Preliminary design for main construction of HZMB wind tunnel test for special structure special subject study report study on wind resistance of Jianghai navigation channel bridge-part V. Wind Tunnel laboratory of Chang'an University, Xi'an, China, (2011).

[2] Law of the People's Republic of China Ministry of communications standards：Wind resistant design specification of Highway Bridges (JTG/T D60-01—2004), China Communications Press, 2004. 12.

[3] Zhu, L.D., Cao, Y.H., Ding, Q.S., et al., Buffeting Performance of Free-Standing Tower of Long-Span Cable-Stayed Bridge under Yawed Wind. J. Tongji Univ. 2005, 33 (7): 880-884. (in Chinese).

[4] Li, J.W., 2006. wind tunnel test for the tower of E'dong highway bridge in Hubei province. R. Wind Tunnel laboratory of Chang'an University, Xi'an, China, (2006).

[5] Zhu, L.D., Wang, M., Guo, Z.S., et al., Buffeting Performance of double cantilever of long-span cable-stayed bridge under yawed wind. J. Engineering Mechanics. 2006, 23 (4): 86-92.

[6] Hu, Q. A., Qiao, Y. Q., Liu, J.X., Li, J.W., Buffeting performance of tower in construction state under yawed wind. J. Journal of traffic and Transportation Engineering, 2007, 8 (2): 40-04.