机场水泥道面日周期温度效应
作者:
作者单位:

1.同济大学 道路与交通工程教育部重点实验室,上海 201804;2.同济大学 民航飞行区设施耐久与运行安全重点实验室,上海 201804;3.四川省机场集团有限公司,四川 成都 610000;4.民航机场规划设计研究总院有限公司,北京 110041

作者简介:

凌建明(1966—),男,教授,博士生导师,工学博士,主要研究方向为机场工程、道路工程。 E-mail: jmling@tongji.edu.cn

通讯作者:

刘海伦(1987—),男,工程师,博士生,主要研究方向为机场场道工程与管理。 E-mail: hlliu@tongji.edu.cn

中图分类号:

V315.11;U416.2

基金项目:

国家自然科学基金(51778480)


Effect of Diurnal Temperature Variations on Airport Cement Pavement
Author:
Affiliation:

1.Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China;2.Key Laboratory of Infrastructure Durability and Operation Safety in Airfield of Civil Aviation Administration of China, Tongji University, Shanghai 201804, China;3.Sichuan Airport Group Co., Ltd., Chengdu 610000, China;4.China Airport Planning and Design Institute Co., Ltd., Beijing 110041, China

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为研究日温变化对机场水泥道面的影响,系统监测分析了日周期内西南某机场水泥道面板内温度、应变及弯沉的变化规律。结果表明:板内温度、平均温度及温度梯度均呈日周期变化,正、负温度梯度最大值分别出现在14:00— 16:00、07:00—08:00;应变与温度不同步变化导致其随温度滞回变化,以温度梯度?曲率分析道面温度效应可减少滞回特征影响;板角翘曲大于板边,接缝类型差异对板边翘曲影响更大;道面边、角弯沉随日温变化波动明显,接缝传荷系数波动主要受温度梯度变化影响,道面性能评价应考虑温度影响;接缝两侧弯沉之和与温度相关性高,且可能与接缝传荷能力无关,在考虑温度影响进行脱空判定时具有一定优势,建议进一步研究其特征。

    Abstract:

    In order to investigate the effect of daily temperature change on airport cement pavement, the variation characteristics of cement slab temperature, strain, and deflection in an airport in southwest China during daily cycle were systematically monitored and analyzed. The results show that the in-plate temperature, average temperature, and temperature gradient change in daily cycle. The maximum positive and negative temperature gradient appear at 14:00—16:00 and 07:00—08:00, respectively. The non-synchronous change of strain and temperature leads to a hysteretic loop, which may be caused by the asynchronous change between each other. The effect of hysteretic characteristics can be reduced by analyzing the relationship between temperature gradient and curvature. The slab corner is curling more significant than the slab edge, and the difference of joint type has a greater effect on the curling of slab edge. The deflections measured at the slab edge and the corner fluctuates obviously with the variation of daily temperature, and the joint load transfer coefficient is mainly affected by temperature gradient. The effect of temperature should be considered in pavement performance evaluation. The sum of deflections on both sides of the joints(SD) has a high correlation with temperature, and may be independent of the joint load transfer capacity. The characteristics of SD give it an advantage in void detection of concrete slab effected by temperature. Further research on the characteristics of SD is needed.

    参考文献
    相似文献
    引证文献
引用本文

凌建明,刘海伦,石蓉,杨帆,唐龙.机场水泥道面日周期温度效应[J].同济大学学报(自然科学版),2022,50(8):1171~1179

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2021-09-02
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2022-08-24
  • 出版日期: