铁路客整所上盖建筑振动及二次结构噪声影响分析  

An Analysis on the Impact of Vibration and Secondary Structural Noise on the Building above Railway Passenger Depot

作　　者：刘长卿 Liu Changqing(Shanghai Engineering Research Centre of Urban Environmental Noise Control,Shanghai Academy of Environmental Sciences,Shanghai 200233)

机构地区：[1]上海市环境科学研究院上海城市环境噪声控制工程技术研究中心,上海200233

出　　处：《上海环境科学》2024年第2期61-64,85,共5页Shanghai Environmental Sciences

摘　　要：采用类比实测与数值模拟相结合的方法,对铁路引起的上盖建筑振动及二次结构噪声影响进行预测分析,结果表明:在不采取减振措施的情况下,盖上建筑室内振动及二次结构噪声影响较大,高层建筑的低楼层存在超标现象,振动超标频率在50 Hz附近,二次结构噪声影响较大在50~80 Hz范围内。研究结论可对该类工程的降噪设计提供参考。Analogical measurement and numerical simulation were combined to predict and analyse the impact of train running induced vibration and secondary structural noise on the building above railway passenger depot.It has been found that the indoor vibration and secondary structural noise could have significant impact on the upper building if there are no measures adopted for vibration mitigation.There is incompliance with the specified standard of vibration at lowerfloors of the high-rise building at around 50 Hz,and a secondary structural noise effect relatively higher in a range between 50 Hz and 80 Hz.The conclusion could provide a reference for the noise reduction design of such a kind of projects.

关 键 词：铁路客整所 上盖建筑 振动及二次结构噪声 数值模拟预测 

分 类 号：TU9[建筑科学]