Experimental Study on the Continuous Type Three-Dimensional Control of the Cable-Stayed Bridge

Abstract:

This paper takes a Chinese Changjiang River highway bridge as engineering background, and a kind of continuous three-dimensional (vertical, lateral and torsion)controllers which can apply in the large span cable-stayed bridge is presented. The controllers can control vertical, lateral and torsional response of bridge wind-induced vibration at the same time. Through comparative wind tunnel test of the bridge model with and without controllers, some important conclusions are made as follows: when the continuous three-dimensional controllers are installed on the bridge model, its flutter critical wind speed increases significantly (mostly increases 33.36%); Meanwhile, there is a certain degree of reduction in its RMS values of vertical, lateral and torsional angular displacement response.

• Periodical: Applied Mechanics and Materials (Volumes 71-78)
• Pages: 1933-1937
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.71-78.1933
• Online since: July 2011
• Authors: Jia Yun Xu, Ji Chen, Xian Wei Qu, Wen Kai Gong
• Keywords: Continuous Type, Segmental Experiment Model, Three-Dimensional Controllers, Wind Tunnel Test, Wind-Resistance of Bridge

References

[1] Zhengqing Chen, Haifang Xiang: Bridge wind engineering ( People's Transportation Press, Beijing 2005) , in Chinese.

[2] Bo Su, Yongqin Li: Chinese highway Vol. 15(2010), pp.94-96, in Chinese.

[3] Shuguang Li: Shanxi Architecture Vol. 33(2007), p.289, in Chinese.

[4] Huizhi Li, Shitang Li, Yizhang Wu: Journal of Zhengzhou Polytechnical University Vol. 22(2001), pp.53-55, in Chinese.

[5] Simiu E, Scanlan R. Wind effect on structures- An introduction to wind engineering, Shangpei Liu, Haifang Xiang, Jiming Xie, Translation. (Tongji University Press, Shanghai 1992).