The Experimental Study and CFD Analysis of Vortex-Excited Vibration of the Central-Open Box Section Cable Bridge

Abstract:

As a new type of section, central-open box sections are more and more popular. Some existed bridges of central-open box section can not to be used because of vortex-excited resonance. Based on this situation, the paper taking the Hongkong-Zhuhai-Macao River-sea ship canal Bridge for example, takes measures of taking the central bottom plate opening hole, changing the angle of web, and setting baffle, according the experimental study and CFD analysis, it is obtained that different aerodynamic sections are various in the character of vortex-excited, although taking the central bottom plate opening hole is effective, it only refers to the best opening ratio, changing the angle of web can not improve the vortex-excited effectively, setting baffle on the lateral sides is the most effective measure to forbid the vortex-excited resonance.

• Periodical: Advanced Materials Research (Volumes 368-373)
• Pages: 1208-1212
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.368-373.1208
• Online since: October 2011
• Authors: Han Xin He, Jian Long Zhou
• Keywords: Cable Bridge, Central-Open Box Section, Vortex-Excited Vibration, Wind-Tunnel Experience

References

[1] Quan Xu. Study on the long-span bridge's vortex-excited vibration and aerodynamic control measures[D], Sichuan：Southwest Jiaotong University, 2007.03.01(In Chinese)

[2] Fei Luo, Wen-Ping Yang, Yonglong Yao. Wind tunnel tests study on the vortex-excited vibration performance of the steel box girder cable-stayed bridge [J], Sichuan Building 2005.25 (02) :pp.90-91(In Chinese)

[3] Li Li, Jinxiang Liao. The finite element method research of the vortex-excited vibration [J], Engineering Mechanics, 2003, 20 (1) :pp.200-203(In Chinese)

[4] Zhixing Lin, Yaojun Ge, Fengchan Cao. The wind resistance problems and countermeasures of steel box girder [J], Journal of Tongji University, 2002. 30 (5) :pp.91-95(In Chinese)

[5] Yu Deng. The research of long-span arch bridge's vortex-excited vibration resistant test [D], Chongqing：Chongqing University, 2005.4(In Chinese)

[6] Yongjun Li. The study on two-dimensional computational model and experiment of the long-span bridge's vortex-excited vibration [D]. Shanghai: Tongji University, 2004(In Chinese).