Impact Coefficient Analysis of Long-Span Railway Cable-Stayed Bridge Based on Coupled Vehicle-Bridge Vibration
Compared with medium and small span bridges, very limited attention has been paid on the research of the impact coefficient of long-span railway bridges. To estimate the impact effects of long-span railway bridges subjected to moving vehicles, a real long-span railway cable-stayed bridge is regarded...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/641731 |
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| _version_ | 1832556614059556864 |
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| author | Yongle Li Shifu Dong Yulong Bao Kejian Chen Shizhong Qiang |
| author_facet | Yongle Li Shifu Dong Yulong Bao Kejian Chen Shizhong Qiang |
| author_sort | Yongle Li |
| collection | DOAJ |
| description | Compared with medium and small span bridges, very limited attention has been paid on the research of the impact coefficient of long-span railway bridges. To estimate the impact effects of long-span railway bridges subjected to moving vehicles, a real long-span railway cable-stayed bridge is regarded as the research object in this study, and a coupled model of vehicle-bridge system is established. The track irregularities are taken as the system excitation and the dynamic responses of the vehicle-bridge system are calculated. The impact effects on main girder, stayed cable, bearings, and bridge tower are discussed at various vehicle speeds. The results show that different components of the long-span railway cable-stayed bridge have different impact coefficients. Even for each part, the impact coefficient is also different at different local positions. It reveals that the impact coefficients in the actual situation may have significant differences with the related code clauses in the present design codes. |
| format | Article |
| id | doaj-art-6cd943348c6d4b929912c72bd031c244 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-6cd943348c6d4b929912c72bd031c2442025-02-03T05:44:52ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/641731641731Impact Coefficient Analysis of Long-Span Railway Cable-Stayed Bridge Based on Coupled Vehicle-Bridge VibrationYongle Li0Shifu Dong1Yulong Bao2Kejian Chen3Shizhong Qiang4Department of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaDepartment of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaDepartment of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaChina Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, ChinaDepartment of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaCompared with medium and small span bridges, very limited attention has been paid on the research of the impact coefficient of long-span railway bridges. To estimate the impact effects of long-span railway bridges subjected to moving vehicles, a real long-span railway cable-stayed bridge is regarded as the research object in this study, and a coupled model of vehicle-bridge system is established. The track irregularities are taken as the system excitation and the dynamic responses of the vehicle-bridge system are calculated. The impact effects on main girder, stayed cable, bearings, and bridge tower are discussed at various vehicle speeds. The results show that different components of the long-span railway cable-stayed bridge have different impact coefficients. Even for each part, the impact coefficient is also different at different local positions. It reveals that the impact coefficients in the actual situation may have significant differences with the related code clauses in the present design codes.http://dx.doi.org/10.1155/2015/641731 |
| spellingShingle | Yongle Li Shifu Dong Yulong Bao Kejian Chen Shizhong Qiang Impact Coefficient Analysis of Long-Span Railway Cable-Stayed Bridge Based on Coupled Vehicle-Bridge Vibration Shock and Vibration |
| title | Impact Coefficient Analysis of Long-Span Railway Cable-Stayed Bridge Based on Coupled Vehicle-Bridge Vibration |
| title_full | Impact Coefficient Analysis of Long-Span Railway Cable-Stayed Bridge Based on Coupled Vehicle-Bridge Vibration |
| title_fullStr | Impact Coefficient Analysis of Long-Span Railway Cable-Stayed Bridge Based on Coupled Vehicle-Bridge Vibration |
| title_full_unstemmed | Impact Coefficient Analysis of Long-Span Railway Cable-Stayed Bridge Based on Coupled Vehicle-Bridge Vibration |
| title_short | Impact Coefficient Analysis of Long-Span Railway Cable-Stayed Bridge Based on Coupled Vehicle-Bridge Vibration |
| title_sort | impact coefficient analysis of long span railway cable stayed bridge based on coupled vehicle bridge vibration |
| url | http://dx.doi.org/10.1155/2015/641731 |
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