| 重载既有线路桥过渡段动力响应特性分析 |
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| 引用本文： | 彭修乾,时瑾.重载既有线路桥过渡段动力响应特性分析[J].铁道科学与工程学报,2011,8(4):7-13. |
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| 作者姓名： | 彭修乾 时瑾 |
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| 作者单位： | 北京交通大学土木建筑工程学院,北京,100044 |
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| 基金项目： | 神华集团科技创新项目((SHGF-06-16); 国家自然科学基金资助项目(51008018) |
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| 摘 要： | 结合朔黄铁路路桥过渡段实际,基于有限元和无限元理论建立车-轨动力分析模型,并通过实测数据对模型进行了验证.以实测过渡段不平顺为基础,分析了C80货车通过过渡段时动力响应规律.计算结果表明:重载既有线路桥过渡段运营造成的不平顺对车辆振动加速度、轮轨力等影响较大,不平顺条件下轮轨力可达221 kN,接近容许限制；在路基深度...
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| 关 键 词： | 重载铁路 路桥过渡段 有限元 无限元 动力特性 |
Study on the dynamic responses and exchange-filling strengthening measures in embankment-bridge transition sections of existing heavy railway |
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| PENG Xiu-qian
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SHI Jin.Study on the dynamic responses and exchange-filling strengthening measures in embankment-bridge transition sections of existing heavy railway[J].Journal of Railway Science and Engineering,2011,8(4):7-13. |
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| Authors: | PENG Xiu-qian SHI Jin |
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| Institution: | PENG Xiu-qian,SHI Jin(School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China) |
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| Abstract: | Combined with the practice of Shuo-Huang Railway roadbed-bridge transition section,vehicle-railway analysis model was established on the basis of finite element theory and infinite element theory,and this model was verified by measured data.On the basis of measured track irregularities,dynamic responses law of C80 freight car passing roadbed-bridge transition section were analyzed.The calculated results show that: track irregularities induced by the operation of roadbed-bridge transition section have great ... |
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| Keywords: | heavy haul railway embankment-bridge transition section finite element infinite element dynamic character |
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