摘要
提出了地铁列车诱发公共交通引导开发(TOD)建筑群振动及二次噪声控制方法.首先,基于经验公式法求解TOD建筑二次结构噪声;然后,分析地铁列车通过时TOD建筑的振动及二次噪声特性及分布;最后,研究钢弹簧浮置板轨道对TOD建筑振动及二次噪声的控制效果.结果表明:建筑车致振动主频集中在40~63 Hz,第二主频集中在6.3~16 Hz;商业楼距离线路最近,振动最大;结构二次噪声出现了大量超标情况,最大超标值达到16.2 dB(A);钢弹簧浮置板轨道可明显降低列车通过时TOD建筑的振动以及二次噪声,特别对16 Hz以上的振动和结构噪声控制效果更好;钢弹簧浮置板对最大z振级的减少量约为14 dB,对声压级的减少量约为13dB(A).
A method for controlling the vibration and secondary noise of TOD(transit-oriented development)buildings induced by subway trains was proposed.Firstly,based on the empirical formula method,solve the secondary structural noise of TOD buildings.Then,analyze the vibration and secondary noise characteristics and distribution of TOD buildings when subway trains pass through.Finally,study the control effect of steel spring floating plate track on TOD building vibration and secondary noise.The results show ed that the main frequency of construction vehicle induced vibration is concentrated in the range of 40-63 Hz,and the second main frequency is concentrated in the range of 6.3~16 Hz.The commercial building is closest to the line and has the highest vibration.The secondary noise of the structure has experienced a large number of exceeding standards,with a maximum exceeding value of 16.2 dB(A).Steel spring floating plate track can significantly reduce the vibration and secondary noise of TOD buildings during train passage,especially for vibration and structural noise control above 16 Hz.The steel spring floating plate reduces the maximum z vibration level by approximately 14 dB and the sound pressure level by approximately 13 dB(A).
作者
陈兆玮
徐鸿
尹镪
何庆烈
CHEN Zhaowei;XU Hong;YIN Qiang;HE Qinglie(School of Mechanotronics and Vehicle Engineering,Chongqing Jiaotong University,Chongqing 400074,China;China Railway Eryuan Engineering Group Co.Ltd.,Chengdu 610036,China;State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China)
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2023年第7期63-68,共6页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(52008067)
四川省科技计划资助项目(2021YFG0211)
重庆市教育委员会科学技术研究资助项目(KJQN201900719)
富水砂卵石及复合地层减振降噪机理及措施综合技术研究资助项目(ZH471-2019-091)
地铁隧道环境振动快速预测分析计算平台资助项目(KDNQ212068).
