考虑横坡的沥青路面力学响应有限元分析

路面结构的横向坡度（横坡）包括路拱横坡和超高横坡。在一般的路面力学响应分析中均忽略其影响，即将路面各结构层视为水平。但实际上由于横坡的存在，各结构层有横向倾斜，这种倾斜对路面力学响应的影响需作进一步分析,本文利用大型有限元软件，以高速公路典型沥青路面结构为例，定量分析了不同横坡坡度对路面力学响应的影响。计算分析表明：横坡在0％～10％之间变化时，对路面结构的力学响应影响很小，所以，在一般的路面力学分析中忽略横坡的影响是可行的。

Influence of Transverse Gradient on Structural Response of Asphalt Pavement

Transverse gradients of pavement include the road camber and super elevation. The influence of transverse gradient is ignored in general structural response analysis. It means that pavement with camber is simply supposed to be horizontal. However, the true pavement is tilted because of the transverse gradient. So, it is necessary to analyze this influence on structural response. In this paper, some typical highway pavements are modeled with finite element method. Then quantificational analysis of structural response of pavement with different gradients is conducted. Analyses indicate that the influence of transverse gradient on structural response is Might if the gradient is less than 10%. Therefore, ignoring of transverse gradient in the general analysis of asphalt pavement is acceptable.