Journal of South China University of Technology(Natural Science Edition) ›› 2012, Vol. 40 ›› Issue (2): 7-12,18.

• Architecture & Civil Engineering • Previous Articles     Next Articles

Analytical Algorithm of Transverse Vibration Frequency of Cables with Intermediate Flexible Supports

Li Ping-jie  Wang Rong-hui  Ma Niu-jing   

  1. School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2011-07-01 Revised:2011-10-18 Online:2012-02-25 Published:2012-01-04
  • Contact: 李平杰(1985-) ，男，博士生，主要从事大跨度桥梁研究． E-mail:pingjieli@163.com
  • About author:李平杰(1985-) ，男，博士生，主要从事大跨度桥梁研究．
  • Supported by:

    国家自然科学基金资助项目( 50978105) ; 广东省自然科学基金资助项目( 200902021)

PDF

1215

Abstract:

In this paper,a beam model with intermediate flexible supports under axial force is established by taking the elastic support reaction as a compelling force loading on the beam and by comprehensively taking into consideration the vibration factors of cables such as the axial force,the bending stiffness and the boundary condition of the ends.  Based on the model,an analytical algorithm is proposed to calculate the transverse vibration frequency of the cables with intermediate flexible supports. The analytical results are then compared with the test ones under different axial forces. It is found that only a small deviation with a maximum of 1.6% is observed,which means that the proposed algorithm is feasible.

Key words: cable, transverse vibration, analytic method, elastic support, frequency, axial force