摘要
随着城市轨道交通的发展,轨道交通车辆运行时所引起的环境振动问题日益引起人们的关注。本文对轨道交通环境中车辆运行产生的振动对居民生活工作质量、建筑结构安全及机械设备正常工作的影响的评价方法进行介绍,并对评价指标量的计算方法与计算参数进行分析讨论。得到了不同计算参数对计算结果的影响趋势,其中分析点数的增加会使分频最大振级的计算结果有所降低,使用峰值保持法比线性平均方法得到的指标量更大,在重叠系数大于3/4后计算结果将趋于稳定。本文为准确评价轨道交通环境振动水平提供参考。
With the development of urban rail transit, environmental vibration caused by the operation of rail transit vehicles has increasingly attracted people＇s attention. This article introduces the evaluation method of the influence of vehicle operation on the residents, building structure and mechanical equipment in the rail transit environment. The calculation methods and calculation parameters of the evaluation index quantity is analyzed and discussed. The trend of influence of different calculation parameters on the calculation results is obtained. The results show that increase of the number of analysis points will reduce the calculation result of the maximum vibration level in the frequency division. The value of the peak retention method is larger than that of the linear average method. After the overlap coefficient is greater than 3/4, the calculation result will tend to be stable. This article provides a reference for accurately evaluating the environmental vibration levels of rail transit.
作者
马广轩
郭瑞娟
郝高岩
张占一
MA Guangxuan;GUO Ruijuan;HAO Gaoyan;ZHANG Zhanyi(China Orient Institute of Noise ＆ Vibration, Beijing 100085, China)
出处
《噪声与振动控制》
CSCD
2018年第A02期469-473,共5页
Noise and Vibration Control
关键词
振动与波
城市轨道交通
环境振动
振级
分频振级
vibration and wave
urban rail transit
environmental vibration
frequency division level
