桥面沥青铺装层的车辙分析

车辙是混凝土桥面沥青铺装结构的主要破坏形式之一，层内过量的剪应力以及剪切流动是车辙发生的主要原因。此文采用三维有限元的方法，考虑3种荷载分布，分析层间接触条件不同、不同铺装层结构组合及不同的温度分布下，层内的剪应力响应。分析显示，非均布荷载和层间接触条件对铺装层结构的剪应力有很大影响，合理的材料设计和结构组合对沥青混凝土桥面铺装具有重要意义。

Analysis of tracing ruts in bituminous pavement on bridge floor

Tracing ruts are one of the main damage types of bituminous pavement construction of concrete bridge floor. The excessive shear force and shear flow in the layers are the main reason for rut occurrence. In this article the three-dimensional finite element method is used with the distribution of three loads being put into consideration. An analysis is conducted of the response of shear force in the layers under different contact conditions between layers with different structural composition of different paving layers and under the distribution of different temperatures. The analysis shows that the non-uniform distribution of load and the contact conditions between layers have great bearing on the shear stress of the paving layers and reasonable material design and structural combination are of vital importance to bituminous concrete bridge floors.