Abstract
With the rapid development of China’s transportation, the problem of environmental vibration is becoming increasingly prominent, and the traffic lines are inevitably close to the building, and the environmental vibration caused by it has a serious negative impact on the safety of the building, the use of precision instruments and the physical and mental health of residents. In this study, the vibration damping barrier is designed periodically, and its unique band gap characteristics can be used to perform directional vibration damping in specific vibration reduction frequency bands. In this paper, the band gap of the periodic row piles is calculated by the periodic theory, and then the measured attenuation domain characteristics of the periodic row piles in the bandgap frequency band are verified by indoor model tests, and the effects of the length of the concrete row piles, the row spacing, the train speed and the load on the vibration isolation effect are discussed. The results show that with the increase of pile length, the vibration isolation effect gradually increases, in addition, the larger row spacing will reduce the vibration isolation effect, and the increase of train speed and amplitude will also lead to poor vibration isolation effect. This study provides a useful reference for the application of concrete row piles in practical engineering.
Published Version
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