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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2008, Vol. 27 ›› Issue (4): 558-563.

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沥青路面疲劳当量温度计算方法研究

孟岩1, 梅迎军2, 潘峥嵘1, 李艳春3   

  1. 1. 上海市南汇区 重大工程建设办公室, 上海 201300;
    2. 重庆交通大学 土木建筑学院, 重庆 400074;
    3. 河北工业大学 土木工程学院, 天津 300130
  • 收稿日期:2007-12-14 修回日期:2008-01-21 出版日期:2008-08-20 发布日期:2016-11-07
  • 作者简介:孟岩(1979-),男,河北石家庄人,工学博士,主要从事桥路面工程研究。E-mail:meryal1980@163.com;电话:021-58022521。

Research on Fatigue Equivalent Temperature Calculation Method of Asphalt Pavement

MENG Yan1, MEI Ying-jun2, PAN Zheng-rong1, LI Yan-chun3   

  1. 1. Office of Major Construction Projects, Nanhui District, Shanghai 201300, China;
    2. School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing 400074, China;
    3. School of Civil Engineering, Hebei University of Technology, Tianjin 300130, China
  • Received:2007-12-14 Revised:2008-01-21 Online:2008-08-20 Published:2016-11-07

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摘要： 我国现行沥青路面设计规范以15℃作为测定沥青混合料疲劳性能的试验温度,忽略了地区之间存在明显的温度差异。根据路面弹性力学层状理论,对控制应力与应变两种疲劳加载模式进行分析,讨论了适用于路面实际疲劳状况的加载模式。分析了影响沥青路面疲劳寿命的因素,并采用SHELL方法,根据Miner法则计算疲劳当量温度,提出了日疲劳当量温度的计算公式,计算了我国8地区的年疲劳当量温度,讨论了不同地区疲劳当量温度的取值范围和取值方法。此研究结果为提高路面结构分析精度提供了可靠的温度参数依据。

关键词: 路面工程, 疲劳寿命, 控制模式, 疲劳当量温度

Abstract: Current norms taking 15℃ as the test temperature of asphalt mixture fatigue properties is clearly improper,for it neglects the obvious temperature differences between various areas.By comparing two loading patterns of controlling the stress and strain,the loading pattern applied to the actual road fatigue conditions is discussed,in which the impact factors of fatigue life of asphalt pavement are analyzed.Adopting SHELL methods based on the Miner's rule,the fatigue equivalent was computed,with which the formula of Day Fatigue Equivalent Temperature was deduced,the Annual Fatigue Equivalent Temperature for eight regions was calculated and fatigue equivalent temperature ranges of the different areas were discussed. The results provide a reliable basis for the temperature parameters to improve the pavement structure analysis.

Key words: pavement engineering, fatigue life, control mode, fatigue equivalent temperature

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