In order to sustain the development of high-speed trains, it is necessary for railway bridges to understand the dynamic behavior of bridge members precisely, by identifying not only the whole bridge vibration properties but also local ones, and low-order to high-order mode vibration properties. Actually, there are common concerns over resonance and noises caused by the vibration of bridge members due to high-speed trains. However, there have been few vibration measurement experiments for carrying out identification of high-order member vibration properties. In this case, the authors conducted the experiment with passing trains, measuring vibration concurrently at several points on the intermediate and projecting slabs of a reinforced concrete (RC) viaduct for high-speed trains. Through the vibration measurement experiment, the authors verified the possibility of detection of high-order vibration modes of members and identified the dominant vibration mode when a high-speed train passed. This article also discusses the relation between vibration properties and the dominant frequency induced by the multi-axle load of trains. By accumulating the data of actual measurements of local vibration, it is possible to contribute to the refinement of finite element analysis.


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    Local Vibration Properties of RC Viaduct under Passing Trains

    Matsuoka, K. / Kaito, K. / Watanabe, T. et al. | Springer Verlag | 2012


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    Matsuoka, K. / Kaito, K. / Watanabe, T. et al. | British Library Conference Proceedings | 2012


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