旧水泥混凝土路面沥青加铺层结构温度应力分析  

Analysis on asphalt overlay structure temperature stress of old cement concrete pavement

作　　者：林宏[1] 

机构地区：[1]东北林业大学土木工程学院,黑龙江哈尔滨150040

出　　处：《山西建筑》2016年第7期149-150,共2页Shanxi Architecture

摘　　要：依据弹性层状体系理论,采用Abaqus程序建立三维有限元分析模型,从降温幅度、加铺层厚度、模量变化等方面,分析了旧水泥混凝土路面沥青加铺层结构在温度荷载作用下的应力变化状况,结果表明:随降温幅度的增加,沥青加铺层底温度应力显著增大;随加铺层厚度的增加,沥青加铺层底部温度应力迅速降低;随加铺层模量的增大,加铺层底温度应力呈上升趋势。According to the elastic layered theory,the paper establishes three-dimensional finite element analysis model by applying Abaqus program,analyzes asphalt overlay structure stress changing conditions of old cement concrete pavement under temperature load action from aspects of temperature drop range,overlay thickness and modulus change. Results show that： with the temperature drop range increasing and overlay modulus increasing,the overlay temperature stress is growing; with the overlay thickness increasing,the bottom asphalt overlay temperature stress will reduce rapidly; with the overlay modulus increasing,the bottom overlay temperature stress will gradually rise.

关 键 词：沥青加铺层 温度应力 有限元模型 路面结构 

分 类 号：U416.216[交通运输工程—道路与铁道工程]