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Advances in Materials Science and Engineering
Volume 2016 (2016), Article ID 9804159, 9 pages
Research Article

Experimental Research on 2 : 1 Parametric Vibration of Stay Cable Model under Support Excitation

1College of Engineering, Department of Architectural Engineering, Kangwon National University, Chuncheon 200-701, Republic of Korea
2Faculty of Civil and Architectural Engineering, East China University of Technology, Nanchang, Jiangxi 330013, China
3College of Civil Engineering, Hunan University, Changsha, Hunan 410082, China

Received 21 August 2016; Accepted 10 October 2016

Academic Editor: Ying Wang

Copyright © 2016 Li-Na Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


For 2 : 1 parametric vibration problem of stay cable under support excitation, a sliding support only in the vertical moving is designed to simulate the bridge stay cable’s vibration test model. Meanwhile, using numerical simulation of cable free vibration and dynamic characteristic test analysis, the experimental research under various conditions is implemented in the actual cable-stayed bridge as the research object, which is compared with the corresponding numerical simulation results. According to the analysis results, it shows that as the vibration test model has 2 : 1 parametric vibration under the support excitation the results of maximum cable displacement from experimental analysis and numerical simulation are basically consistent which revealed that the parametric vibration of stay cable exists and is easy to occur. Additionally, when the bridge bearing excitation frequency is similar to the 2 : 1 frequency ratio, small excitation can indeed lead to the sharp “beat” vibration of cable; therefore it is very necessary to limit the amplitude of support excitation to prevent the occurrence of a large main parametric resonance.