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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。
The finite element software ANSYS was used to establish the structural model of semi-rigid base asphalt concrete pavement for transient analysis. The vertical displacement and vertical dynamic stress time history curve of pavement structure under uniform moving constant load and half-wave sinusoidal load were obtained. : The dynamic response of pavement structure under two loading methods is basically similar; the difference of loading method is only reflected in the small gap between the time of extreme value and the extreme value. This conclusion may provide a reference for the working conditions of asphalt pavement under different dynamic load.