Random vibration and deterministic analyses of cable-stayed bridges to asynchronous ground motion


Soyluk K. , Dumanoglu A., Tuna M.

STRUCTURAL ENGINEERING AND MECHANICS, vol.18, no.2, pp.231-246, 2004 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 18 Issue: 2
  • Publication Date: 2004
  • Doi Number: 10.12989/sem.2004.18.2.231
  • Title of Journal : STRUCTURAL ENGINEERING AND MECHANICS
  • Page Numbers: pp.231-246

Abstract

In this paper, a comparison of various random vibration and deterministic dynamic analyses of cable-stayed bridges, subjected to asynchronous ground motion is presented. Different random vibration methods are included to determine the dynamic behaviour of a cable-stayed bridge for various ground motion wave velocities.,As a numerical example the Jindo Bridge located in South Korea is chosen and a 413 DOF mathematical model is employed for this bridge. The results obtained from a spectral analysis approach are compared with those of two random vibration based response spectrum methods and a deterministic method. The analyses suggest that the structural responses usually show important amplifications depending on the decreasing ground motion wave velocities.