沥青混合料动态模量及其变化规律研究
发布时间：2018-08-02 08:06
【摘要】：作为一种黏弹性材料,沥青混合料力学响应特征随环境的变化而变化。为了对沥青路面响应进行力学分析,需要对其变化规律进行研究。该文以AC-16沥青混合料的动态模量室内试验数据为基础,对沥青混合料动态模量随荷载频率及试验温度的变化规律进行研究,利用Sigmoidal模型及时温等效原理拟合得到AC-16沥青混合料的动态模量主曲线和位移因子,利用WLF方程得到位移因子随试验温度变化规律的数学模型,最后给出该种沥青混合料动态模量关于试验温度和荷载频率的变化规律,以更好地模拟沥青混合料在不同的温度下随汽车速度变化,其力学响应的变化规律。
[Abstract]:As a viscoelastic material, the mechanical response characteristics of asphalt mixture vary with the environment. In order to analyze the response of asphalt pavement, it is necessary to study the change law. Based on the dynamic modulus indoor test data of AC-16 asphalt mixture, the dynamic modulus of asphalt mixture with the load frequency and test is tested. The change law of temperature is studied. The main curve and displacement factor of the dynamic modulus of AC-16 asphalt mixture are fitted by the Sigmoidal model and the temperature equivalent principle is fitted. The mathematical model of the displacement factor with the change of the test temperature is obtained by using the WLF equation. Finally, the dynamic modulus of the asphalt mixture is given with respect to the test temperature and load carrier frequency. In order to better simulate the variation of mechanical response of asphalt mixture with vehicle speed at different temperatures.
【作者单位】： 山西省交通科学研究院;
【分类号】：U414
[Abstract]:As a viscoelastic material, the mechanical response characteristics of asphalt mixture vary with the environment. In order to analyze the response of asphalt pavement, it is necessary to study the change law. Based on the dynamic modulus indoor test data of AC-16 asphalt mixture, the dynamic modulus of asphalt mixture with the load frequency and test is tested. The change law of temperature is studied. The main curve and displacement factor of the dynamic modulus of AC-16 asphalt mixture are fitted by the Sigmoidal model and the temperature equivalent principle is fitted. The mathematical model of the displacement factor with the change of the test temperature is obtained by using the WLF equation. Finally, the dynamic modulus of the asphalt mixture is given with respect to the test temperature and load carrier frequency. In order to better simulate the variation of mechanical response of asphalt mixture with vehicle speed at different temperatures.
【作者单位】： 山西省交通科学研究院;
【分类号】：U414
【相似文献】
相关期刊论文 前10条
1 郭大进,王旭东;水泥土动态模量试验的分析[J];公路交通科技;2000年05期
2 田小革;张淑泉;黄斌;梁娟;;沥青稳定碎石动态模量影响因素的研究[J];中外公路;2009年06期
3 傅燕峰;胡亚风;;掺钢渣粉的水泥稳定碎石动态模量试验研究[J];内蒙古公路与运输;2013年02期
4 包桂钰;;沥青稳定碎石的动态模量及其影响因素研究[J];公路交通科技(应用技术版);2010年03期
5 曾胜,吴，
本文编号：2158757
本文链接：https://www.wllwen.com/kejilunwen/daoluqiaoliang/2158757.html
