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Dynamic performance of twin curved cable-stayed bridges
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Dynamic performance of twin curved cable-stayed bridges
Dynamic performance of twin curved cable-stayed bridges
C. Gentile
C. Gentile
FC
F. Martinez Y Cabrera
F. Martinez Y Cabrera
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7 November 2003
journal article
research article
Published by
Wiley
in
Earthquake Engineering & Structural Dynamics
Vol. 33
(1)
,
15-34
https://doi.org/10.1002/eqe.332
Abstract
The dynamic behaviour of two curved cable-stayed bridges, recently constructed in northern Italy, has been investigated by full-scale testing and theoretical models. Two different excitation techniques were employed in the dynamic tests: traffic-induced ambient vibrations and free vibrations. Since the modal behaviour identified from the two types of test are very well correlated and a greater number of normal modes was detected during ambient vibration tests, the validity of the ambient vibration survey is assessed in view of future monitoring. For both bridges, 11 vibration modes were identified in the frequency range of 0ndash;10Hz, being a one-to-one correspondence between the observed modes of the two bridges. Successively, the information obtained from the field tests was used to validate and improve 3D finite elements so that the dynamic performance of the two systems were assessed and compared based on both the experimental results and the updated theoretical models. Copyright © 2003 John Wiley & Sons, Ltd.
Keywords
AMBIENT VIBRATION TEST
CURVED CABLE-STAYED BRIDGES
FREE VIBRATION TEST
MODAL IDENTIFICATION
MODEL UPDATING
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Open Access
Cited by 27 articles