【摘要】 采用有限元软件ANSYS建立半刚性基层沥青混凝土路面的结构模型进行瞬态分析,得到路面结构在匀速移动常量荷载和半波正弦荷载作用下的竖向位移和竖向动应力时程曲线,揭示出:两种加载方式下的路面结构动态响应规律基本相似;加载方式的不同只是体现在极值出现时间点及极值大小的较小差距上。此结论可为沥青路面在不同动载作用下的工作状况提供参考依据。更多还原

【Abstract】 The finite element software ANSYS is used to build the asphalt pavement structure threedimensional model and to carry through transient analysis.The vertical displacement and vertical dynamic stress &time curves are obtained under even speed constant load and half wave sine load.The results reveal the pavement dynamic response laws are basically similar;the difference of loading mode reflects only in the smaller difference of the extreme value and the appearing time point;these conclusions can provide reference for the working condition of asphalt pavement under different dynamic loads.更多还原