摘要
不考虑行车动荷载对路面影响的传统沥青路面设计方法存在诸多弊端,本文运用三维有限元动力学基本方法,建立了移动荷载作用下沥青路面结构的三维仿真模型,对移动荷载作用下路面的各力学指标做了响应分析,最后比较了车速对各力学指标的影响规律,发现随着车速的提高,沥青路面的各力学指标的动态响应峰值均减小。
Some deficiencies exist in current asphalt pavement design methods without taking the effects of dynamic load into account. In this paper the three-dimensional （3D） finite element dynamic method was adopted and a three-dimensional （3D） simulational model for asphalt pavement under the moving load was established. Some mechanical response of pavement induced by moving load was analyzed. Finally, the mechanical regularity impacted by vehicle speed was compared. The results show that, with the increasing of the vehicle speed, the maximum value of dynamic response become smaller.
出处
《交通运输工程与信息学报》
2007年第3期90-95,共6页
Journal of Transportation Engineering and Information
关键词
沥青路面
三维有限元
移动荷载
动力响应
Asphalt pavement, three-dimensional （3D） finite element, moving load, dynamic response
