1.长沙理工大学 土木工程学院,湖南 长沙 410076;2.广西大学 土木建筑工程学院,广西 南宁 530004
李传习（1963—），男，湖南衡阳人，长沙理工大学教授，博士生导师，博士. E-mail： lichuanxi2@163.com
TU599;TU391
国家自然科学基金资助项目（51778069）；湖南省自然科学基金资助项目（2021JJ40173）；湖南省研究生科研创新重点项目（QL20210180）
1.School of Civil Engineering， Changsha University of Science and Technoloy，Changsha 410076， China;2.School of Civil Engineering and Archtecture， Guangxi University， Nanning 530004， China
为掌握极端湿热环境下CFRP/钢界面性能的退化机理，用Sika-30胶黏剂制作了12个CFRP/钢双搭接试件，并在70 ℃的模拟海水中浸泡不同时间后进行拉伸剪切试验. 结果表明：CFRP/钢双搭接试件的破坏模式受浸泡时长的影响较小；CFRP/钢界面平均抗剪强度随浸泡时长呈先上升后下降趋势；浸泡90 d后，CFRP/钢界面平均抗剪强度较未浸泡试件下降了35.6%.
To understand the deterioration mechanism of CFRP/steel interface properties under extreme hot and humid environment， 12 of CFRP/steel double lap specimens using Sika-30 adhesive were prepared. These specimens were immersed in simulated seawater at 70 ℃ for different time for tensile shear test. The results show that the failure mode of these specimens were less affected by the soaking time. The average shear strength of the CFRP/steel interfaces increased first and then decreased with the soaking time. After soaking for 90 days， the average shear strength of the CFRP/steel interfaces decreased by 35.6% compared with that of unsoaked specimen.
李传习,司睹英胡,高有为.极端湿热环境对
