地铁车辆段上盖建筑水平向振动特性与预测方法研究  

Characteristics and prediction method of train-induced horizontal vibration transmission within over-track building of metro depot

作　　者：邹超 陈颖 陶子渝 何卫 ZOU Chao;CHEN Ying;TAO Ziyu;HE Wei(School of Civil and Transportation Engineering,Guangdong University of Technology,Guangzhou 510006,China;School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510641,China;Faculty of Engineering,China University of Geosciences,Wuhan 430074,China)

机构地区：[1]广东工业大学土木与交通工程学院,广东广州510006 [2]华南理工大学土木与交通学院,广东广州510641 [3]中国地质大学(武汉)工程学院,湖北武汉430074

出　　处：《建筑结构学报》2022年第7期282-289,共8页Journal of Building Structures

基　　金：国家自然科学基金项目(51908139);广东省基础与应用基础研究基金项目(2021A1515012605)。

摘　　要：以深圳地铁某车辆段上盖28层剪力墙结构为研究对象,通过现场试验研究地铁车辆段试车线及咽喉区水平向车致振动在上盖建筑中的传播规律。在此基础上,基于阻抗理论,考虑弯曲波在剪力墙中的传播特性,以实测数据作为荷载输入,建立了地铁车辆段上盖建筑水平向振动频域预测模型。研究结果表明:上盖剪力墙结构水平向表现出明显的整体振动特点,水平振动随楼层变化不大;咽喉区与试车线由于轨道结构的差异导致建筑物水平振动频率差异较大,相比咽喉区,试车线列车引起的建筑水平振动以高频段为主;提出的预测模型能够较好地反映地铁列车运行引起的上盖建筑水平向振动规律,可为地铁车辆段上盖建筑在规划和设计阶段提供高效、精确、便捷的预测方法。Based on the measurements of a 28-story shear wall structure in a metro depot of Shenzhen,the horizontal vibration transmission within over-track building caused by train operation in the test line and throat area was studied.A prediction model of horizontal vibration of metro depot and over-track building was established based on the impedance theory,which considered the propagation characteristics of bending waves in shear walls and took the measured data as inputs.The results show that the shear wall structure has the characteristics of collective vibrations in the horizontal direction,and the horizontal vibrations do not change much from one floor to another.Due to the difference in the track structure between the throat area and the test line,the frequency characteristics of horizontal vibrations within the building are quite different.Compared that in the throat area,the horizontal vibration of buildings caused by train operation in the test line is mainly in the high frequency bands.The prediction model for horizontal vibrations can predict the propagation characteristics of the horizontal vibrations within over-track building caused by train operation in the metro depot quickly and accurately,which can provide an efficient,accurate and convenient prediction method for the over-track buildings in the early planning and design stage of the metro depot.

关 键 词：剪力墙结构 上盖建筑 地铁车辆段 现场实测 预测模型 水平振动 振动特性 

分 类 号：TU973.16[建筑科学—结构工程] TU317.2