地铁引起的站台邻近建筑室内振动预测分析 in-door vibration prediction of the buildings adjacent to subway station platforms induced by subway operation.pdfVIP
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地铁引起的站台邻近建筑室内振动预测分析 in-door vibration prediction of the buildings adjacent to subway station platforms induced by subway operation
第36 卷 第3 期 噪 声 与 振 动 控 制 Vol 36 No.3
2016 年6 月 NOISE AND VIBRATION CONTROL Jun. 2016
文章编号:1006-1355(2016)03-0100-06
地铁引起的站台邻近建筑室内振动预测分析
刘长卿1, 2
(1. 上海市环境科学研究院,上海 200233 ;
2. 上海城市环境噪声控制工程技术研究中心(筹),上海 200233 )
摘 要:为了对地铁引起的站台邻近建筑楼层振动进行预测,提出并验证半经验半数值的振动预测方法,即运用实
测经验法确定振源强度,有限元法分析建筑结构振动传递函数,将源强与传递函数相结合对建筑结构振动响应进行预
测。利用半经验半数值的振动预测方法,对某地铁站台及其邻近建筑进行环境振动预测分析,得到地铁运行引起站台
邻近建筑室内振动加速度级随楼层变化规律及其频谱特性。结果表明,半经验半数值的振动预测方法可行;地铁引起
的站台邻近建筑内,随着楼层升高,低频振动受结构固有频率影响逐步放大,高频振动受阻尼影响能量衰减逐步减小,
总振级随楼层增高呈先减小后增大趋势。该结果对地铁运行引起的站台邻近建筑室内环境振动预测及隔振设计具有
实际意义。
关键词:振动与波;地铁站台;邻近建筑;半经验半数值法;环境振动预测
中图分类号:X593 ;TB533 文献标识码:A DOI 编码:10.3969/j.issn. 1006-1335.2016.03.021
In-door Vibration Prediction of the Buildings Adjacent to
Subway Station Platforms Induced by Subway Operation
LIU Chang-qing 1, 2
( 1. Shanghai Academy of Environmental Sciences, Shanghai 200233, China;
2. Shanghai Engineering Research Center of Urban Environmental Noise Control (in preparation),
Shanghai 200233, China )
Abstract : To predict the subway induced vibration of the buildings adjacent to the subway station platforms, a semi-
empirical and semi- numerical method is proposed and validated. In this method, the intensity of the vibration sources is
determined by the empirical method and the vibration transfer function of the buildings is calculated by the finite element
method. Combining the source intensity with the transfer function, the structural vibration responses are predicted. Then, the
semi-empirical and semi-numerical method is applied to anal
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