水泥砼桥面沥青铺装受力影响研究

Study on the Influence of Force on Cement Asphalt Pavement Asphalt Pavement

摘要: 本文以来马(来宾–马山)高速公路上林互通式立交桥沥青铺装工程为例，建立梁体有限元模型，以铺装层层顶拉应力和层间剪应力为计算指标，通过对比三种不同铺装方案，分析不同行车状况、温度对沥青铺装受力的影响。结果表明倒装式结构抗拉的优点以及倒装式抵抗温度应力效果较其他结构好。

Abstract: This article has taken the example of the asphalt pavement of the Shanglin Interchange over the Mabin (Laibin-Mashan) Expressway as an example to establish a finite element model of the beam. The calculation is based on the tensile stress at the top of the pavement and the shear stress be-tween the layers. Comparing three different pavement schemes, the effects of different driving conditions and temperatures on the asphalt pavement stress were analyzed. The results show that the advantages of the tensile structure of flip-type structure and flip-type resistance to thermal stress are better than other structures.