层间构造深度对桥面防水粘结层关键路用性能的影响  

Influence of interlayer structure depth on key road performance of waterproof bonding layer

作　　者：周本涛 王笑风 常迅夫 万晨光 ZHOU Bentao;WANG Xiaofeng;CHANG Xunfu;WAN Chenguang(Henan WanLong Expressway Co.Ltd.,Pingdingshan 467000,China;Research&Development Center of Transport Industry of Technologies,Materials and Equipments of Highway Construction and Maintenance,Zhengzhou 450000,China;Henan Provincial Communications Planning&Design Institute Co.Ltd.,Zhengzhou 450000,China)

机构地区：[1]河南宛龙高速公路有限公司,河南平顶山467000 [2]交通运输行业公路建设与养护技术、材料及装备研发中心,河南郑州450000 [3]河南省交通规划设计研究院股份有限公司,河南郑州450000

出　　处：《新型建筑材料》2022年第10期92-97,101,共7页New Building Materials

基　　金：中原千人计划—中原科技创新领军人才项目(204200510004);河南省交通运输厅科技项目(2019J-2-4)。

摘　　要：对混凝土桥面调平层表面构造深度进行室内量化模拟,研究了调平层表面构造深度对桥面铺装结构层间稳定性的影响。结合铺砂法,模拟设计了0、0.4、0.8、1.2 mm等4种表面构造深度的混凝土板,制备了桥面铺装复合试件,测试了复合试件的层间剪切强度、拉拔强度及横向渗水系数。结果表明,增大桥面板构造深度有利于提高层间抗剪稳定性;荷载作用方向与表面构造方向垂直情况下,一定程度上提高了抗剪稳定性。增大构造深度对不同防水粘结层拉拔强度的影响各异,且对层间横向渗水产生不利影响。The surface structure depth of concrete bridge leveling layer was simulated in laboratory,and the influence of surface structure on the interlayer stability of bridge deck pavement structure was studied. Combined with the sand paving method,four kinds of concrete slabs with different surface structure depths 0,0.4,0.8,1.2 mm were simulated and designed. Composite specimens of bridge deck pavement were prepared from the above concrete slabs,and the interlaminar shear strength,pull-off strength and transverse seepage coefficient of several composite specimens were measured. The results showed that increasing the structural depth of the bridge deck was conducive to improving the interlayer shear stability,and the direction of the load action was perpendicular to the surface structural direction,which improved the shear stability to a certain extent. The increase of structural depth had different effects on pull-off strength of different waterproof bonding layers,and had adverse effects on interlaminar lateral seepage.

关 键 词：表面构造 量化模拟 防水粘结层 强度 层间横向渗水 

分 类 号：TU579[建筑科学—建筑技术科学]