摘要
以FRP加固盾构隧道纵缝接头为试验对象,采用足尺试验方法对加固及未加固的纵缝接头的受力性能及其破坏形态分别进行比较,得到FRP加固接头的破坏机理,并对其加固效果进行总体评价。试验结果表明:在FRP材料黏结良好的情况下,加固接头的转角刚度能够得到提升。
A full -scale test was carried out to study the ultimate bearing capacity of the reinforced longitudinal joint and the unreinforced one. The failure mechanism of reinforced joint with composite cavity was obtained and the overall effect of the reinforcement was evaluated. The test results show that on the condition of well bonding, the angle stiffness of joint reinforced with FRP can be improved.
出处
《铁道科学与工程学报》
CAS
CSCD
北大核心
2016年第2期316-324,共9页
Journal of Railway Science and Engineering
基金
上海市科学技术委员会社发重点领域科技项目(13231200400)
关键词
盾构隧道
纵缝接头
FRP材料
加固效果
shield tunnel
longitudinal joint
composite cavity
ultimate bearing capacity
