接缝素混凝土路面预测性能的参数影响分析  

Parameter Influence Analysis of Predicting Performance of Jointed Plain Concrete Pavement

作　　者：谢颂劼 XIE Song-jie(China Railway 18th Bureau Group Construction and Installation Engineering Co.,Ltd,Tianjin 300008,China)

机构地区：[1]中铁十八局集团建筑安装工程有限公司,天津300008

出　　处：《广东交通职业技术学院学报》2022年第4期1-4,13,共5页Journal of Guangdong Communication Polytechnic

摘　　要：接缝素混凝土路面的性能受多种设计参数的影响,包括混凝土的力学性能和热学性能。为评估热膨胀系数、弹性模量和断裂模量对路面性能的影响,利用MEPDG进行数值模拟。模拟结果表明,随着混凝土热膨胀系数的增加,路面性能呈现劣化的趋势。此外,随着混凝土弹性模量和断裂模量增加,混凝土的强度增加,路面性能得到改善。The performance of jointed plain concrete pavement is affected by many design parameters,including the mechanical and thermal properties of concrete.In order to evaluate the influence of these materials on pavement performance,the numerical simulation is carried out by using MEPDG.The simulation results show that the pavement performance tends to deteriorate with the increase of concrete coefficient of thermal expansion.In addition,with the increase of elastic modulus and fracture modulus of concrete,the strength of concrete increases,and the pavement performance improves.

关 键 词：热膨胀系数(CTE) 接缝素混凝土路面(JPCP) 横向开裂 国际平整度指数(IRI) 节理断层 

分 类 号：U416.216[交通运输工程—道路与铁道工程]