Experimental Investigation on the Responses of Bridge Aeroelastic Models Subjected to Wind–Rain Actions
Publication: Journal of Bridge Engineering
Volume 26, Issue 2
Abstract
The wind–rain-resistant performances of aeroelastic models of simplified suspension bridges and cable-stayed bridges at the erection stage are experimentally investigated. Several typical deck sections, i.e., two bluff decks, two thin flat plates, and a quasi-streamlined deck, are included to cover a wide range of possible alternatives. Under different conditions of wind speed, rainfall intensity, and initial attack angle, the vertical and torsional displacements at the deck end tips and middle sections are measured. The comprehensive measurement results reveal that in the possible and even extreme range of rainfall intensity, the aerostatic and aerodynamic responses are almost independent of the rainfall intensity for all testing cases, which may contradict with the intrinsic conception of most researchers in the wind engineering community. The results suggest that the rainfall loads effect on bridges are trivial, and it might be unnecessary to comprehensively investigate the rainfall loads on bridges similar with the considered cases.
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Acknowledgments
This work was jointly supported by the National Science Foundation of China (Grant Nos. 51678115 and 51978130), which are gratefully acknowledged.
References
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Published In
Journal of Bridge Engineering
Volume 26 • Issue 2 • February 2021
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Mar 2, 2020
Accepted: Sep 27, 2020
Published online: Dec 11, 2020
Published in print: Feb 1, 2021
Discussion open until: May 11, 2021
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