车速对沥青路面结构动力响应的影响

摘要

Influences of the vehicle speed on the dynamic response of asphalt pavement structure are analyzed by the three-dimensional dynamic FEM. The results show that, the vehicle speed influences the maximum of the vertical displacement, the vertical stress and the horizontal shearing stress obviously, but the the horizontal tensile stress and the transversal tensile stress little.%运用三维动力有限元的方法，分析了车速对沥青路面结构的动力响应的影响规律。分析结果表明：车速对路面结构的最大竖向位移、最大垂直压应力、最大水平剪应力产生的动力响应明显，对基层底部的最大水平拉应力和最大横向拉应力产生的动力响应非常有限。