[1]董忠红,郑仲浪,吕彭民..车辆速度对沥青路面动力响应影响试验研究[J].郑州大学学报(工学版),2008,29(02):123-126.[doi:10.3969/j.issn.1671-6833.2008.02.032]
　DONG Zhonghong,Zheng Zhonglang,Lv Pengmin.Experimental study on the influence of vehicle speed on the dynamic response of asphalt pavement[J].Journal of Zhengzhou University (Engineering Science),2008,29(02):123-126.[doi:10.3969/j.issn.1671-6833.2008.02.032]
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车辆速度对沥青路面动力响应影响试验研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
29卷
期数:
2008年02期
页码:
123-126
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Experimental study on the influence of vehicle speed on the dynamic response of asphalt pavement
作者:
董忠红; 郑仲浪; 吕彭民.
长安大学,道路施工与装备教育部重点实验室,陕西,西安,710064, 长安大学,道路施工与装备教育部重点实验室,陕西,西安,710064, 长安大学,道路施工与装备教育部重点实验室,陕西,西安,710064
Author(s):
DONG Zhonghong; Zheng Zhonglang; Lv Pengmin
关键词:
野外现场试验;  沥青路面;  动力响应;  速度;  应变比;  疲劳寿命
Keywords:
DOI:
10.3969/j.issn.1671-6833.2008.02.032
文献标志码:
A
摘要:
通过野外现场试验,检测运动车辆荷载下沥青路面各层层底的动应变响应.以面层底部的动应变为分析对象,研究车辆速度对沥青路面结构动力响应的影响.研究结果发现,面层底部动应变既包括拉应变,又包括压应变,呈拉压应变交变状态,一定应力比下沥青混凝土的疲劳寿命与简单拉应力下的疲劳寿命差异严重,进行沥青路面结构设计时,应以应变或应力循环范围为动态设计控制参数;随着车速提高,最大拉应变和应变幅度总体呈现下降趋势,最大压应变和应变比总体呈上升趋势.重载车辆在低速状态对路面的破坏作用更加严重.应变比既受轴重的影响又受速度的影响
Abstract:
Through field field tests, the dynamic strain response of each layer of asphalt pavement under the load of moving vehicles was detected. The influence of vehicle speed on the dynamic response of asphalt pavement structure was studied by using the kinetic strain at the bottom of the surface layer to analyze the object. The results show that the dynamic strain at the bottom of the surface layer includes both tensile strain and compressive strain, and it is in a tensile-compressive strain alternating state, and the fatigue life of asphalt concrete under a certain stress is more different than that under simple tensile stress. With the increase of vehicle speed, the maximum tensile strain and strain amplitude showed a downward trend, and the maximum pressure strain and strain ratio showed an overall upward trend. The destructive effect of heavy-duty vehicles on the road surface at low speed is more serious. The strain ratio is affected by both axle load and speed

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更新日期/Last Update: 1900-01-01