沥青混凝土桥面铺装层间黏结性能的影响研究  

Study on the Impact of Interlayer Bonding Performance of Asphalt Concrete Bridge Deck Paving

作　　者：李恒 平克磊 夏振兴 杜思宇 孙亮明[2] LI Heng;PING Kelei;XIA Zhenxing;DU Siyu;SUN Liangming(CSCEC AECOM Consultants Co.,Ltd.,Lanzhou 730000,China;School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]中国市政工程西北设计研究院有限公司,兰州730000 [2]武汉理工大学土木工程与建筑学院,武汉430070

出　　处：《交通科技》2023年第4期37-41,共5页Transportation Science & Technology

基　　金：中国市政工程西北设计研究院有限公司科技研发课题(XBSZKY2036)资助。

摘　　要：为研究沥青混凝土桥面铺装结构的层间受力状态,采用有限元法建立带有薄层沥青防水黏结层的混凝土箱梁整桥模型及局部梁端子模型,进行层间黏结响应分析,并与涂膜类防水黏结层和卷材类防水黏结层进行对比。考虑防水黏结层厚度及模量对沥青桥面铺装结构层间黏结性能影响,结果表明,采用薄层橡胶沥青防水黏结层的沥青桥面铺装结构,层间黏结性能较其他两类更优,工程应用中具有适应性强,抗变形能力强等优势。防水黏结层厚度的增大可提升沥青桥面铺装结构的层间黏结性能,但提升的效率随厚度的增加而降低。防水黏结层模量的增大对层间黏性性能产生不利影响。To study the interlayer stress state of asphalt concrete bridge deck paving structure,a finite element method was used to establish a whole bridge model and a partial beam end submodel of a concrete box beam with a thin layer of asphalt waterproof bonding layer,and the interlayer bonding response was analyzed.The results were compared with those of coating-type waterproof bonding layers and roll material-type waterproof bonding layers.The effect of waterproof bonding layer thickness and modulus on the interlayer bonding performance of the asphalt bridge deck paving structure was considered.The study results show that the asphalt bridge deck paving structure with a thin layer of rubber asphalt waterproof bonding layer has better interlayer bonding performance than the other two types,and has advantages such as strong adaptability and deformation resistance in engineering applications.The increase in the thickness of the waterproof bonding layer can improve the interlayer bonding performance of the asphalt bridge deck paving structure,but the improvement efficiency decreases with the increase in thickness.The increase in the modulus of the waterproof bonding layer has a detrimental effect on the interlayer bonding performance.

关 键 词：层间黏结性能 薄层橡胶沥青 混凝土箱梁 有限元方法 

分 类 号：U443.33[建筑科学—桥梁与隧道工程] U414[交通运输工程—道路与铁道工程]