Seismic Response Mitigation of a Long-Span Tower Bridge with Two Types of Constraint System
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 c...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8846467 |
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| author | Li Xu Qingfei Gao Junhao Zheng Chuanhui Ding Kang Liu |
| author_facet | Li Xu Qingfei Gao Junhao Zheng Chuanhui Ding Kang Liu |
| author_sort | Li Xu |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-c78f6a2c7f4649b199d1ebc4ea6ae0c1 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-c78f6a2c7f4649b199d1ebc4ea6ae0c12025-02-03T06:43:36ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/88464678846467Seismic Response Mitigation of a Long-Span Tower Bridge with Two Types of Constraint SystemLi Xu0Qingfei Gao1Junhao Zheng2Chuanhui Ding3Kang Liu4School of Civil Engineering, Fuzhou University, Fuzhou 35018, ChinaSchool of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, ChinaSchool of Civil Engineering, Fuzhou University, Fuzhou 35018, ChinaSchool of Civil Engineering, Fuzhou University, Fuzhou 35018, ChinaSchool of Civil Engineering, Fuzhou University, Fuzhou 35018, ChinaThe 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.http://dx.doi.org/10.1155/2020/8846467 |
| spellingShingle | Li Xu Qingfei Gao Junhao Zheng Chuanhui Ding Kang Liu Seismic Response Mitigation of a Long-Span Tower Bridge with Two Types of Constraint System Advances in Civil Engineering |
| title | Seismic Response Mitigation of a Long-Span Tower Bridge with Two Types of Constraint System |
| title_full | Seismic Response Mitigation of a Long-Span Tower Bridge with Two Types of Constraint System |
| title_fullStr | Seismic Response Mitigation of a Long-Span Tower Bridge with Two Types of Constraint System |
| title_full_unstemmed | Seismic Response Mitigation of a Long-Span Tower Bridge with Two Types of Constraint System |
| title_short | Seismic Response Mitigation of a Long-Span Tower Bridge with Two Types of Constraint System |
| title_sort | seismic response mitigation of a long span tower bridge with two types of constraint system |
| url | http://dx.doi.org/10.1155/2020/8846467 |
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