摘要
针对钢箱梁正交异性板的疲劳损伤,提出采用碳玻混杂纤维布(C/GFRP)加固和裂纹焊合法加固2种方法对疲劳裂纹进行维修加固,以提高其抗疲劳性能。试验结果表明,碳玻混杂纤维布加固和裂纹焊合法加固试验件与未加固试验件疲劳破坏表现形式几乎相同;结构钢度退化均可分为循环前期、循环中期和循环后期等3个阶段;2种加固方法均可有效地提升结构寿命。
For the anti fatigue performance of reinforced steel orthotropic plate test,two methods of hybrid glassy carbon fiber（C/GFRP）and crack welding are used.The results show that hybrid glassy carbon fiber cloth and crack welding test piece show the same fatigue failure form of steel structure as the test piece without reinforcing reinforcement.The structure steel degree degradation can be divided into three stages,and the two reinforcement methods can effectively improve the structure life.
作者
于丽波
于超凡
艾军
YU Libo;YU Chaofan;AI Jun(J incheng College o{ Nanjing University o{ Aeronautics and Astronautics, Nanjing 211156, China;Hohai University, Nanjing 211100, China;H ua Dong Engineering Corporation Limited, Hangzhou 311600, China;Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)
出处
《新技术新工艺》
2017年第12期47-51,共5页
New Technology & New Process
基金
江苏省自然科学基金(面上项目资助)(16KJB560007)
交通运输部建设厅科技项目(2013318j19590)
精品课程基金资助项目(2014-J-11)
关键词
正交异性板
加固方法
疲劳试验
orthotropic plate, rein{orcement method, fatigue test
