[1]王富羚,王玉田,姜福香,等.循环荷载作用下CFRP-混凝土界面粘结-滑移关系研究[J].西安建筑科技大学学报(自然科学版),2021,(02):223-228.[doi:10.15986/j.1006-7930.2021.02.011]
 WANG Fuling,WANG Yutian,JIANG Fuxiang,et al.Study on the bond-slip relationship of CFRP-concrete interface under cyclic loading[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2021,(02):223-228.[doi:10.15986/j.1006-7930.2021.02.011]
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循环荷载作用下CFRP-混凝土界面粘结-滑移关系研究()
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西安建筑科技大学学报(自然科学版)[ISSN:1006-7930/CN:61-1295/TU]

卷:
期数:
2021年02期
页码:
223-228
栏目:
出版日期:
2021-04-28

文章信息/Info

Title:
Study on the bond-slip relationship of CFRP-concrete interface under cyclic loading
文章编号:
1006-7930(2021)02-0223-06
作者:
王富羚1王玉田1姜福香12赵莹莹3
(1.青岛理工大学 土木工程学院,山东 青岛 266033; 2.山东省高等学校蓝色经济区工程建设与安全协同创新中心,山东 青岛 266033; 3.东营市公路勘察设计院有限公司,山东 东营 257091)
Author(s):
WANG Fuling1 WANG Yutian1 JIANG Fuxiang12 ZHAO Yingying3
(1.Department of Civil Engineering, Qingdao University of Technology,Qingdao 266033,China;2.Cooperative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone,Qingdao 266033,China;3.Dongying Highway Survey and Design Institute Co.Ltd.,Dongying 257091,China)
关键词:
CFRP 双面剪切试验 粘结-滑移关系 循环荷载 疲劳性能
Keywords:
CFRP double shear test bond-slip relationship cyclic loading fatigue performance
分类号:
TU528.572
DOI:
10.15986/j.1006-7930.2021.02.011
文献标志码:
A
摘要:
循环荷载作用下CFRP-混凝土界面粘结-滑移关系是研究CFRP加固混凝土结构疲劳性能的重要基石.通过对18个双面剪切试件进行静载及疲劳试验,分析探讨了循环荷载作用下CFRP-混凝土界面破坏过程及粘结-滑移关系.结果表明,随着循环荷载次数及应力水平增大,界面粘结性能降低,CFRP片材也更早出现剥离现象,剥离长度和应力水平呈线性关系; 端部滑移变化表现为两个阶段,快速增长阶段和稳定增长阶段; 应力水平越高,对应的粘结-滑移曲线中最大剪应力就越大.
Abstract:
The bond-slip relationship of CFRP-concrete interface under cyclic loading is an important cornerstone to study the fatigue performance of concrete structures strengthened with CFRP. Based on the static and fatigue tests of 18 double-sided shear specimens, the interface failure process and bond-slip relationship of CFRP-concrete under cyclic loading are analyzed and discussed. The results show that the interfacial bond properties decrease with the increase of cyclic load times and stress level, and the peeling phenomenon of CFRP sheet appears earlier, and there is a linear relationship between peeling length and stress level; the change of end slip can be divided into two stages, rapid growth stage and stable growth stage; the higher the stress level is, the greater the maximum shear stress in the corresponding bond-slip curve is.

参考文献/References:

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(编辑 桂智刚)

备注/Memo

备注/Memo:
收稿日期:2020-09-22 修改稿日期:2021-03-20
基金项目:山东省自然科学基金资助项目(2019GSF110006)
第一作者:王富羚(1996-),女,硕士生,研究方向为结构检测加固研究.E-mail:2293528364@qq.com
通信作者:王玉田(1972-),男,博士,高级实验师,主要从事结构评估与加固工程安全控制方面的研究.E-mail:513960157@qq.com
更新日期/Last Update: 2021-04-28