Study on Dynamic Amplification Coefficient of U-Shaped Girder Based on Vehicle-Bridge Coupling Dynamics
In this paper, a vehicle-bridge coupling dynamic model is established considering the vertical wheel-rail tight contact and the lateral simplified wheel-rail creeping. Through the site test and the numerical calculation, the dynamic deflections and the stresses of the U-shaped girder in the Nanjing...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2023/2676495 |
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| _version_ | 1849304528096067584 |
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| author | Tangying Bai Hui Li Yu Tian Yipeng Chen Yudong Wen Chaoyi Xia |
| author_facet | Tangying Bai Hui Li Yu Tian Yipeng Chen Yudong Wen Chaoyi Xia |
| author_sort | Tangying Bai |
| collection | DOAJ |
| description | In this paper, a vehicle-bridge coupling dynamic model is established considering the vertical wheel-rail tight contact and the lateral simplified wheel-rail creeping. Through the site test and the numerical calculation, the dynamic deflections and the stresses of the U-shaped girder in the Nanjing S6 Urban Rail Transit in China are obtained, and the effectiveness of the established numerical model is verified. By changing the vehicle types and speeds, the dynamic amplification coefficients (DAFs) of the vertical deflections and the biaxial stresses at the girder bottom including the key points at the plate and section intersections are calculated. The research shows that the distribution of the lateral stresses is more complex than that of the deflection and the longitudinal stresses. Based on the calculation results considering various vehicle types, it is suggested that the DAFs of the vertical deflections and the longitudinal stresses are taken as 1.30, and the DAF of the lateral stresses remains at 1.40 as stipulated by the code. The research of this paper is to provide a reference for the structural design and size optimization of the U-shaped girders for urban rail transit. |
| format | Article |
| id | doaj-art-425f16b597d94dcfb685b236ea18b888 |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-425f16b597d94dcfb685b236ea18b8882025-08-20T03:55:41ZengWileyShock and Vibration1875-92032023-01-01202310.1155/2023/2676495Study on Dynamic Amplification Coefficient of U-Shaped Girder Based on Vehicle-Bridge Coupling DynamicsTangying Bai0Hui Li1Yu Tian2Yipeng Chen3Yudong Wen4Chaoyi Xia5Beijing Urban Construction Design & Development Group Co., Ltd.Nanjing Metro Construction Co., Ltd.Beijing Urban Construction Design & Development Group Co., Ltd.Beijing Urban Construction Design & Development Group Co., Ltd.Beijing Jiaotong UniversityBeijing Jiaotong UniversityIn this paper, a vehicle-bridge coupling dynamic model is established considering the vertical wheel-rail tight contact and the lateral simplified wheel-rail creeping. Through the site test and the numerical calculation, the dynamic deflections and the stresses of the U-shaped girder in the Nanjing S6 Urban Rail Transit in China are obtained, and the effectiveness of the established numerical model is verified. By changing the vehicle types and speeds, the dynamic amplification coefficients (DAFs) of the vertical deflections and the biaxial stresses at the girder bottom including the key points at the plate and section intersections are calculated. The research shows that the distribution of the lateral stresses is more complex than that of the deflection and the longitudinal stresses. Based on the calculation results considering various vehicle types, it is suggested that the DAFs of the vertical deflections and the longitudinal stresses are taken as 1.30, and the DAF of the lateral stresses remains at 1.40 as stipulated by the code. The research of this paper is to provide a reference for the structural design and size optimization of the U-shaped girders for urban rail transit.http://dx.doi.org/10.1155/2023/2676495 |
| spellingShingle | Tangying Bai Hui Li Yu Tian Yipeng Chen Yudong Wen Chaoyi Xia Study on Dynamic Amplification Coefficient of U-Shaped Girder Based on Vehicle-Bridge Coupling Dynamics Shock and Vibration |
| title | Study on Dynamic Amplification Coefficient of U-Shaped Girder Based on Vehicle-Bridge Coupling Dynamics |
| title_full | Study on Dynamic Amplification Coefficient of U-Shaped Girder Based on Vehicle-Bridge Coupling Dynamics |
| title_fullStr | Study on Dynamic Amplification Coefficient of U-Shaped Girder Based on Vehicle-Bridge Coupling Dynamics |
| title_full_unstemmed | Study on Dynamic Amplification Coefficient of U-Shaped Girder Based on Vehicle-Bridge Coupling Dynamics |
| title_short | Study on Dynamic Amplification Coefficient of U-Shaped Girder Based on Vehicle-Bridge Coupling Dynamics |
| title_sort | study on dynamic amplification coefficient of u shaped girder based on vehicle bridge coupling dynamics |
| url | http://dx.doi.org/10.1155/2023/2676495 |
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