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Seismic Response Mitigation of a Long-Span Tower Bridge with Two Types of Constraint System
Joint Authors
Xu, Li
Gao, Qingfei
Zheng, Junhao
Ding, Chuanhui
Liu, Kang
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-11-17
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
The stress of the main tower of a cable-stayed bridge depends on the connection type between the tower and deck.
In order to study the most suitable longitudinal damping mode for a long-span cable-stayed bridge.
In this article, a nonlinear finite element model is established based on a large span concrete cable-stayed bridge with a main span of 680 m.
Without considering the influence of the transverse constraint, the damping effect of the elastic connection device and the viscous damper is simulated when the longitudinal seismic load is input.
The results show that the stiffness of the main beam is increased by installing the elastic connection device, so the longitudinal drift frequency of the main beam is increased, but the stiffness of the structure is not changed by installing the viscous damper.
Both viscous dampers and elastic connection structures can reduce the longitudinal displacement of the beam end, but viscous dampers are more favorable for the stress of the main tower.
In terms of damping effect, viscous dampers are more suitable for long-span cable-stayed bridges, but, in terms of economy and parameter control, elastic connection devices have more advantages.
American Psychological Association (APA)
Xu, Li& Gao, Qingfei& Zheng, Junhao& Ding, Chuanhui& Liu, Kang. 2020. Seismic Response Mitigation of a Long-Span Tower Bridge with Two Types of Constraint System. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1123867
Modern Language Association (MLA)
Xu, Li…[et al.]. Seismic Response Mitigation of a Long-Span Tower Bridge with Two Types of Constraint System. Advances in Civil Engineering No. 2020 (2020), pp.1-12.
https://search.emarefa.net/detail/BIM-1123867
American Medical Association (AMA)
Xu, Li& Gao, Qingfei& Zheng, Junhao& Ding, Chuanhui& Liu, Kang. Seismic Response Mitigation of a Long-Span Tower Bridge with Two Types of Constraint System. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1123867
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123867