Investigation of the Dynamic Performance of a Large-Span Suspension Bridge Influenced by Scouring Based on Vehicle-Bridge Coupled Vibration
To study the damage of bridge pile foundations caused by scouring, two damage mechanisms of scouring are proposed in this paper. Considering the vehicle-bridge coupled vibration in terms of two aspects of the scouring depth and erosion depth, the vertical and transversal dynamic characteristics and...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/6656247 |
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| _version_ | 1832554549926166528 |
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| author | Qingfei Gao Biao Wu Renzhi Wang Jiaqiang Zhang Binqiang Guo Jun Li |
| author_facet | Qingfei Gao Biao Wu Renzhi Wang Jiaqiang Zhang Binqiang Guo Jun Li |
| author_sort | Qingfei Gao |
| collection | DOAJ |
| description | To study the damage of bridge pile foundations caused by scouring, two damage mechanisms of scouring are proposed in this paper. Considering the vehicle-bridge coupled vibration in terms of two aspects of the scouring depth and erosion depth, the vertical and transversal dynamic characteristics and dynamic responses of the bridge are studied under different cases for the most sensitive vehicle speed. The dynamic characteristics include the 1st and 2nd vibration modes of the vertical and transversal directions of the bridge. The dynamic responses include the vertical and transversal dynamic load allowances and acceleration of the bridge. The souring depth is more sensitive than the erosion depth, and the 2nd vertical mode is most substantially influenced by scouring and erosion. Because of the small value of the natural frequency of the vertical vibration modes, the transversal vibration modes may be more convenient to obtain. The study of the dynamic responses shows that the scouring depth can be represented by the dynamic load allowance in the middle of the span’s section and the erosion depth can be characterized by the dynamic load allowance at the quarter location of the span’s section. |
| format | Article |
| id | doaj-art-23900fbd32c94b53923c98aea0767e1a |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-23900fbd32c94b53923c98aea0767e1a2025-02-03T05:51:12ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/66562476656247Investigation of the Dynamic Performance of a Large-Span Suspension Bridge Influenced by Scouring Based on Vehicle-Bridge Coupled VibrationQingfei Gao0Biao Wu1Renzhi Wang2Jiaqiang Zhang3Binqiang Guo4Jun Li5School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, ChinaSchool of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, ChinaSchool of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, ChinaSchool of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, ChinaZhejiang Provincial Institute of Communications Planning, Design & Research, Hangzhou 310000, ChinaDepartment of Municipal and Environmental Engineering, Heilongjiang Institute of Construction Technology, Harbin, Heilongjiang 150025, ChinaTo study the damage of bridge pile foundations caused by scouring, two damage mechanisms of scouring are proposed in this paper. Considering the vehicle-bridge coupled vibration in terms of two aspects of the scouring depth and erosion depth, the vertical and transversal dynamic characteristics and dynamic responses of the bridge are studied under different cases for the most sensitive vehicle speed. The dynamic characteristics include the 1st and 2nd vibration modes of the vertical and transversal directions of the bridge. The dynamic responses include the vertical and transversal dynamic load allowances and acceleration of the bridge. The souring depth is more sensitive than the erosion depth, and the 2nd vertical mode is most substantially influenced by scouring and erosion. Because of the small value of the natural frequency of the vertical vibration modes, the transversal vibration modes may be more convenient to obtain. The study of the dynamic responses shows that the scouring depth can be represented by the dynamic load allowance in the middle of the span’s section and the erosion depth can be characterized by the dynamic load allowance at the quarter location of the span’s section.http://dx.doi.org/10.1155/2020/6656247 |
| spellingShingle | Qingfei Gao Biao Wu Renzhi Wang Jiaqiang Zhang Binqiang Guo Jun Li Investigation of the Dynamic Performance of a Large-Span Suspension Bridge Influenced by Scouring Based on Vehicle-Bridge Coupled Vibration Shock and Vibration |
| title | Investigation of the Dynamic Performance of a Large-Span Suspension Bridge Influenced by Scouring Based on Vehicle-Bridge Coupled Vibration |
| title_full | Investigation of the Dynamic Performance of a Large-Span Suspension Bridge Influenced by Scouring Based on Vehicle-Bridge Coupled Vibration |
| title_fullStr | Investigation of the Dynamic Performance of a Large-Span Suspension Bridge Influenced by Scouring Based on Vehicle-Bridge Coupled Vibration |
| title_full_unstemmed | Investigation of the Dynamic Performance of a Large-Span Suspension Bridge Influenced by Scouring Based on Vehicle-Bridge Coupled Vibration |
| title_short | Investigation of the Dynamic Performance of a Large-Span Suspension Bridge Influenced by Scouring Based on Vehicle-Bridge Coupled Vibration |
| title_sort | investigation of the dynamic performance of a large span suspension bridge influenced by scouring based on vehicle bridge coupled vibration |
| url | http://dx.doi.org/10.1155/2020/6656247 |
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