北京航空航天大学学报 ›› 2018, Vol. 44 ›› Issue (9): 1787-1796.doi: 10.13700/j.bh.1001-5965.2017.0687

• 论文 • 上一篇    下一篇

基于振动特性的机场刚性道面传荷性能

张献民1,2, 刘小兰2, 张子文1   

  1. 1. 中国民航大学 机场学院, 天津 300300;
    2. 南京航空航天大学 民航学院, 南京 210016
  • 收稿日期:2017-11-06 出版日期:2018-09-20 发布日期:2018-09-21
  • 通讯作者: 张献民.E-mail:cauczxm@126.com E-mail:cauczxm@126.com
  • 作者简介:张献民 男,博士,教授,博士生导师。主要研究方向:场道工程;刘小兰 女,博士研究生。主要研究方向:场道工程。
  • 基金资助:
    国家自然科学基金(51178456)

Rigid pavement load transfer ability of airport based on vibration characteristics

ZHANG Xianmin1,2, LIU Xiaolan2, ZHANG Ziwen1   

  1. 1. Airport College, Civil Aviation University of China, Tianjin 300300, China;
    2. Civil Aviation College, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2017-11-06 Online:2018-09-20 Published:2018-09-21
  • Supported by:
    National Natural Science Foundation of China (51178456)

摘要: 接缝的传荷性能需定期检测以指导机场刚性道面的维护和使用,针对现有检测方法(如落锤式弯沉仪)难以进行偏远山区和交通运输困难地区的机场测试问题,提出了普通加载车辆跳车试验法,探究传力杆自身参数和道面结构参数对传荷性能和道面振动特性(基频、幅值、相位差)的影响规律,找出主要影响因素为传力杆弹性模量和土基模量;建立多因素下传荷性能和道面振动特性的定量关系,并通过室外试验验证该公式的准确性和方法的可行性。

关键词: 传荷性能, 基频, 幅值, 相位差, 试验

Abstract: Load transfer ability needs to be detected termly to guide the maintenance and usage of concrete pavement of airport, while using the existing methods (such as falling weight deflectometer) is difficult to implement airport testing in remote mountain areas and the areas where transportation is difficult. Therefore, a bumping method of common vehicle is proposed to analyze the influence of dowel bar and pavement structure parameters on load transfer ability and pavement vibration characteristics (i.e., fundamental frequency, amplitude and phase difference). It is found that the elasticity modulus of dowel bar and subgrade modulus are the main effect factors. The quantitative relationship between load transfer ability and pavement vibration cha-racteristics is established with multiple factors, and the accuracy of formulas and the feasibility of bumping method are verified by outdoor experiments.

Key words: load transfer ability, fundamental frequency, amplitude, phase difference, experiment

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