| 交通荷载作用下市政道路路面振动测试与分析 |
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| 引用本文： | 邹锦华,陈焰华,黄龙田,陈伟.交通荷载作用下市政道路路面振动测试与分析[J].路基工程,2019,0(5):40-46. |
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| 作者姓名： | 邹锦华 陈焰华 黄龙田 陈伟 |
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| 作者单位： | 广东工业大学土木与交通工程学院,广州,510006;广东省建筑设计研究院,广州,510010 |
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| 基金项目： | 广东省省级科技计划项目（2015B090901054）；广东省交通运输厅科技项目（科技-2017-02-013） |
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| 摘 要： | 对市政道路进行减隔振设计，需先研究交通车辆荷载引起的道路振动特性。实测了广州市南大路和番禺大道北辅路在四种车辆和混合车流时的路面振动加速度，并对测试数据进行峰值、频谱、VLz振级分析，研究车辆荷载引起的市政道路振动规律。结果表明:道路振动加速度响应幅值与汽车轴重、行驶速度、道路结构刚度密切相关，随着汽车轴重、车辆行驶速度和道路刚度的增大而增大；汽车荷载激励以竖向振动为主，频率主要在5.0～40.0 Hz之间，能量集中于10.0~20.0Hz范围。
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| 关 键 词： | 市政道路 交通荷载 路面振动 加速度 频谱 振级 |
| 收稿时间： | 2019-11-08 |
Pavement Vibration Test and Analysis of Municipal Road under the Action of Traffic Load |
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| Abstract: | As to carry out the vibration attenuation and isolation design of municipal road, it is required to study at first the road vibration characteristics caused by traffic vehicle loads. The pavement vibration acceleration of Nanda Road and the north byroad of Panyu Avenue of Guangzhou City under the action of four kinds of vehicle and mixed traffic flow, were measured, and then the measurements were analyzed in the aspects of peak value, spectrum and VLz vibration level, therefore the vibration laws of municipal road caused by vehicle load was studied. The result shows that, the response amplitude of road vibration acceleration closely relates to vehicle axle load, running speed and road structural stiffness, and increases with the increment of axle load, running speed and road stiffness; the vehicle load excitation is vertical vibration oriented with the frequency from 5.0 Hz to 40.0 Hz mainly, and the capacity concentrated in the range of 10.0~20.0 Hz. |
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