| 基于车-桥耦合振动的简支梁桥冲击效应 |
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| 引用本文： | 谭国金,刘寒冰,程永春,王龙林,刘斌.基于车-桥耦合振动的简支梁桥冲击效应[J].吉林大学学报(工学版),2011,41(1):62-0067. |
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| 作者姓名： | 谭国金 刘寒冰 程永春 王龙林 刘斌 |
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| 作者单位： | 吉林大学交通学院,长春,130022 |
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| 基金项目： | “863”国家高技术研究发展计划项目（2009AA11Z104）；吉林省交通厅项目（200811，2009114）；吉林大学创新团队项目（2009008）；高等学校博士学科点专项科研基金项目（20100061120066）；吉林大学科学前沿与交叉学科创新项目（29003040）. |
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| 摘 要： | 为了精确分析车辆对简支梁桥的冲击效应,基于模态综合法,建立了三维空间车-桥耦合振动模型.基于车-桥耦合振动模型的动力时程响应分析结果,并利用动力放大系数的概念,得到了车辆参数以及桥面不平整度、行车速度和车辆作用位置对冲击效应的影响规律.研究结果可以为我国桥梁设计规范中简支梁桥冲击系数的计算方法的改进提供理论依据.
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| 关 键 词： | 桥梁工程 简支梁桥 冲击效应 车-桥耦合振动 模态综合法 |
| 收稿时间： | 2009-05-16 |
Analysis of impact of vehicle to simply supported beam bridge based on vehicle-bridge coupled vibration |
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| TAN Guo-jin,LIU Han-bing,CHENG Yong-chun,WANG Long-lin,LIU Bin.Analysis of impact of vehicle to simply supported beam bridge based on vehicle-bridge coupled vibration[J].Journal of Jilin University:Eng and Technol Ed,2011,41(1):62-0067. |
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| Authors: | TAN Guo-jin LIU Han-bing CHENG Yong-chun WANG Long-lin LIU Bin |
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| Affiliation: | College of Transportation, Jilin University, Changchun 130022,China |
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| Abstract: | A three-dimensional vehicle-bridge coupled vibration model was established based on the model synthesis method to analyze the impact of vehicle to the simply supported beam bridge accurately. Using the concept of dynamic magnification factor, the impacts of the vehicle parameters, the bridge deck smoothness, the vehicle speed, and the vehicle to bridge relative position were obtained from the dynamic response results of the established model. The results provide a theoretical basis for improving the impact coefficient calculation method of the simply supported beam bridge in the bridge design code of China. |
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| Keywords: | bridge engineering simply supported beam bridge impact effect vehicle-bridge coupled vibration modal synthesis method |
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