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Structural Engineering and Mechanics Volume 18, Number 2, August 2004 , pages 231-246 DOI: https://doi.org/10.12989/sem.2004.18.2.231 |
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Random vibration and deterministic analyses of cable-stayed bridges to asynchronous ground motion |
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K. Soyluk, A. A. Dumanoglu and M. E. Tuna
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| 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. | ||
| Key Words | ||
| spectral analysis approach; multiple support response spectrum method; deterministic analysis; asynchronous ground motion; cable-stayed bridge. | ||
| Address | ||
| K. Soyluk; Department of Civil Engineering, Gazi University, Maltepe, Ankara 06570, Turkey A. A. Dumanoglu; Grand National Assembly of Turkey, Ankara, Turkey M. E. Tuna; Department of Architecture, Gazi University, Maltepe, Ankara 06570, Turkey | ||