摘要
用ANSYS在粘弹性理论基础上做掺有PR PLASTS沥青混凝土路面塑性变形仿真计算,进行掺有PR PLASTS沥青混凝土的压缩回弹模量试验和蠕变试验。对两种试验数据进行回归分析,得到不同掺量和不同温度条件下PR PLASTS沥青混凝土的材料参数。利用得到的材料参数进行数值模拟计算,分析了宏观的变形特征,PR PLASTS的掺量与路面变形的关系,温度对路面变形的影响。结果表明:PR PLASTS掺量处于0.4%~0.6%时,沥青混凝土路面具有较好的抵抗路面车辙的能力,路面塑性变形与中面层的弹性模量呈指数关系;随着温度的升高,掺有PR PLASTS的沥青路面车辙变形增大幅度小于普通沥青路面。以上研究结果可为PR PLASTS沥青混凝土在沥青路面中的应用提供理论依据。
Based on the viscoelastic theory, ANSYS is used to simulate the plastic deformation of asphalt concrete pavement with PR PLASTS, and the compressive resilience modulus test and creep test of asphalt concrete with PR PLASTS are carried out. Regression analysis was carried out on the two test data to obtain the material parameters of PR PLASTS asphalt concrete under different dosages and different temperature conditions. Using the obtained material parameters for numerical simulation calculation, the macroscopic deformation characteristics, the relationship between the amount of PR PLASTS and the deformation of the road surface, and the influence of temperature on the deformation of the road surface were analyzed. The results show that when the P PLASTS content is between 0.4% and 0.6%, the asphalt concrete pavement has better resistance to road rutting. The plastic deformation of the pavement has an exponential relationship with the elastic modulus of the middle layer. With the increase of temperature, The deformation of the asphalt pavement with PR PLASTS is less than that of ordinary asphalt pavement. The above research results can provide a theoretical basis for the application of PR PLASTS asphalt concrete in asphalt pavement.
作者
王菲
WANG Fei(Shanxi College of Communications Technology,Xi'an Shaanxi 710014,China)
出处
《粘接》
CAS
2019年第7期35-39,共5页
Adhesion
