旧水泥混凝土路面沥青加铺层温度应力有限元分析

Finite Element Analysis on Thermal Stress of Asphalt Overlayer in old Cement Concrete Pavement

文章基于路面温度场理论,采用ANSYS程序建立旧水泥混凝土路面沥青加铺层结构温度应力有限元模型,分析了降温幅度、加铺层厚度和土工布夹层材料模量及典型防止反射裂缝措施对旧路接缝处沥青加铺层底温度应力的影响,为选择合理材料和设计参数进行沥青加铺层设计提供参考。

Based on the theory of pavement temperature field,the article used the ANSYS program to establish the finite element model of asphalt overlayer＇s structure thermal stress in old cement concrete pavement,analyzed the impact of cooling margin,overlayer thickness,modulus of sandwich materials in geotextiles and typical anti-reflective crack measures on the thermal stress of asphalt overlayer bottom at the joints of old road,provide the reference for selecting reasonable materials and design parameters to design the asphalt overlayer.