Research on Differences between Cylindrical and E-Shaped Dampers for the Bidirectional Seismic Control
Publication: Journal of Bridge Engineering
Volume 25, Issue 4
Abstract
The similarities and differences between the cylindrical and E-shaped damping devices used in bridge engineering are discussed, considering technical factors such as the configuration pattern, mechanical model, hysteresis capacity, modes of failure, material quantity, and installation requirements. Considering the damping effect, a local fine finite-element model is established to analyze the dynamic response of a typical continuous girder bridge. The displacements of the key points and the shear forces of the key components are both evaluated after taking into account the different earthquake ground motion characteristics and incident angles. The differences between the damping effects of these two devices are quantitatively analyzed. Then, each factor that potentially causes this difference is discussed to realize bidirectional control of vibrations in the seismic design of the bridge structure.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This research was supported by the National Key Basic Research Program (Grant Number: 2018YFC1504306), National Science Foundation of China (Grant Number: 51438010, 51778498), and the Research Program of the Shanghai Science and Technology Commission (Grant Number: 17DZ1204300). The authors thank the referees for their careful work and thoughtful suggestions, which have substantially improved this study.
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©2020 American Society of Civil Engineers.
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Received: Jan 3, 2019
Accepted: Oct 17, 2019
Published online: Jan 20, 2020
Published in print: Apr 1, 2020
Discussion open until: Jun 20, 2020
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