加铺碳纤维桥面板与桥面铺装结构层间剪切试验研究  

Research on Shear Test of the Interface Between Bridge Deck with Carbon Fiber and Deck Pavement

作　　者：田帅[1] 张铁志[1] 李野[1] 王开明[1] 

机构地区：[1]辽宁科技大学资源与土木工程学院,鞍山114051

出　　处：《武汉理工大学学报》2011年第6期80-84,共5页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50372001);国家高技术研究发展计划(2003AA302130)

摘　　要：为了评价加铺碳纤维的桥面板与桥面铺装结构层间的抗剪强度是否满足要求,利用剪力试验机进行了试件层间剪切试验,研究了加铺碳纤维桥面板的表面特性,分析了温度对层间抗剪强度的影响,探索了结构层间施工工艺。结果表明:碳纤维表面的AECR树脂胶能够增强层间粘结层的粘结性能;在加铺碳纤维的桥面板上撒布机械砂3.0 kg/m2,涂层改性沥青1.3 kg/m2,主涂胶涂抹8 h后撒布机械砂,施工工艺最合理,界面抗剪强度最高。In order to evaluate whether the shear resistance of the interface between bridge deck with carbon fiber and deck pavement can meet demand,the shear test of interface is conducted on test-specimen with shear testing machine,the surface performance of bridge deck with carbon fiber is studied,the impact of temperature on the shear resistance of interface is analyzed,and the construction technology of interface structure is explored.Results show the AECR resin adhesive on surface of carbon fiber can enhance the bond strength of bonding layer in interface.The sound construction technology is like that： bestrew abreuvage（3.0 kg/m2） on the bridge deck with carbon fiber 8 hours after main glue,then apply modified asphalt（1.3 kg/m2）.With that method,the shear resistance of the interface performs best.

关 键 词：碳纤维 桥面板 桥面铺装 层间剪切试验 

分 类 号：U443.33[建筑科学—桥梁与隧道工程]