Experimental Study of Seismic Mitigation of a Large-Span Cable-Stayed Bridge with Elastic Cables by Shaking Table Test
Publication: Practice Periodical on Structural Design and Construction
Volume 26, Issue 2
Abstract
Elastic cables have the advantages of desirable seismic mitigation effect, low cost, and convenient installation, and have been used widely in low-to-mid-span bridges. However, their utilization in long-span cable-stayed bridges has been limited. To study the effect of elastic cable on the seismic response mitigation of long-span cable-stayed bridges, an experimental model (half-bridge model) with a geometric similarity ratio of was established. Both the semifloating system and the elastic restraint system were considered, and the seismic responses of the two systems under earthquake excitation were tested on the shaking table. The results demonstrated the seismic mitigation effect of the elastic restraint system, which is dependent on the characteristics of the seismic wave. The mechanism of the seismic response mitigation of the long-span cable-stayed bridge with longitudinal elastic restraint was discussed.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This research was financially supported by the Science and Technology Bureau of Fuzhou, China (Grant No. 2018-G-88) and the Provincial Department of Science and Technology of Fujian, China (Grant No. 2017J01698). These supports are gratefully acknowledged. The authors acknowledge the thoughtful suggestions of three anonymous reviewers, which substantially improved the present paper. However, any opinions and findings expressed herein are solely those of the authors, and may not necessarily reflect the positions of the sponsoring organization.
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Published In
Practice Periodical on Structural Design and Construction
Volume 26 • Issue 2 • May 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Jul 8, 2020
Accepted: Dec 7, 2020
Published online: Jan 31, 2021
Published in print: May 1, 2021
Discussion open until: Jun 30, 2021
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