钢桥面沥青混凝土铺装层疲劳性能研究  

Research on Fatigue Performance of Asphalt Concrete Pavement Layer of Steel Bridge Deck

作　　者：谢得璞 祁琳 XIE De-pu;QI Lin(Shenyang Munieipal Engineering Desingn and Researeh Institute,Shenyang 110015,China;Dalian Municipal Desingn and Research Institute Co.,Ltd.,Dalian 116011,China)

机构地区：[1]沈阳市市政工程设计研究院,沈阳市110015 [2]大连市市政设计研究院有限责任公司,大连市116011

出　　处：《北方交通》2018年第11期38-41,共4页Northern Communications

摘　　要：应力应变水平是材料疲劳寿命的一个重要因素,为评估东北地区典型钢桥面铺装层的疲劳寿命,通过四点弯曲疲劳试验确定铺装层材料的疲劳寿命曲线,采用研发的层间剪切试验仪模拟铺装层层间剪切破坏,根据动力学分析获得的桥面铺装层应力应变水平,预测铺装层材料的疲劳寿命。The stress - strain level is an important factor that decides the fatigue life of the material. In order to evaluate the fatigue life of pavement layer of the typical steel bridge deck in northeast region, the curve of fatigue life of pavement layer material is determined in this paper by utilizing the four - point bending fatigue test. The shear failure between pavement layers is simulated by adopting the interlayer shear tester of development and research. According to the dynamics analysis, the stress - strain level of pavement layer of bridge deck is obtained,so as to forecast the fatigue life of pavement layer material.

关 键 词：钢桥面 沥青混凝土 铺装层 疲劳性能 

分 类 号：U443.33[建筑科学—桥梁与隧道工程]