Structural Engineering and Mechanics

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Influence of cable loosening on nonlinear parametric vibrations of inclined cables

  • Wu, Qingxiong (College of Civil Engineering, Fuzhou University) ;
  • Takahashi, Kazuo (Department of Civil Engineering, Faculty of Engineering, Nagasaki University) ;
  • Chen, Baochun (College of Civil Engineering, Fuzhou University)
  • Received : 2005.12.28
  • Accepted : 2006.08.25
  • Published : 2007.01.30
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Abstract

The effect of cable loosening on the nonlinear parametric vibrations of inclined cables is discussed in this paper. In order to overcome the small-sag limitation in calculating loosening for inclined cables, it is necessary to first derive equations of motion for an inclined cable. Using these equations and the finite difference method, the effect of cable loosening on the nonlinear parametric response of inclined cables under periodic support excitation is evaluated. A new technique that takes into account flexural rigidity and damping is proposed as a solution to solve the problem of divergence. The regions of inclined cables that undergo compression are also indicated.

Keywords

References

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  2. Dynamic characteristics of cable vibrations in a steel cable-stayed bridge using nonlinear enhanced MECS approach vol.30, pp.1, 2007, https://doi.org/10.12989/sem.2008.30.1.037
  3. Equivalent stiffness method for nonlinear analysis of stay cables vol.39, pp.5, 2007, https://doi.org/10.12989/sem.2011.39.5.661