Fatigue performance of corrosion-damaged beams strengthened with FRP grid-reinforced ECC matrix composites
Fatigue performance of corrosion-damaged beams strengthened with FRP grid-reinforced ECC matrix composites
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FRP网格增强ECC基复合材料增强腐蚀损伤梁的疲劳性能
DOI：
10.1016/j.engstruct.2022.113938
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发表时间：
2022-03
影响因子：
5.5
通讯作者：
Li S.
中科院分区：
文献类型：
--
作者：
Zheng A.;Zong S.;Lu Y.;Li S.
An investigation on the flexural fatigue behavior of corrosion-damaged reinforced concrete (RC) beams that were strengthened with a fiber-reinforced polymer (FRP) grid-reinforced engineered cementitious composite (ECC) matrix is presented in this paper. The concrete cover, which was damaged by the corrosion of the tensile steel bars, was chipped away and reinstated with an ECC layer that was embedded with an FRP grid. A total of 12 beams were constructed, and 11 of them were subjected to cyclic fatigue loading. The test results indicated that the final failure mode of the strengthened beams was still dominated by the brittle fracture of the tensile steel reinforcements. The fatigue life of the beams increased significantly with increasing strengthening amounts of the FRP grid but decreased with the corrosion ratio and the upper limit fatigue load level. At a sufficient strengthening amount, the fatigue life of strengthened beams could be restored to that of the original uncorroded beams. By regression analysis of the stress range–fatigue life (S–N) curve, a prediction formula for fatigue life was derived with a satisfactory correlation coefficient. In addition, the tested midspan deflections and the results that were calculated using available empirical models or theoretical calculation approaches were compared and evaluated.
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复合加固层加固钢筋混凝土梁的弯曲性能：BFRP 网格和 ECC
影响因子：
7.4
作者：
Yu-Zhou Zheng;Wen-Wei Wang;John C. Brigham
通讯作者：
John C. Brigham
使用 FRP 网格增强 ECC 基复合材料对带有腐蚀损坏箍筋的 RC 梁进行剪切强化
影响因子：
6.3
作者：
Zheng Aohan;Li Shan;Zhang Dengfeng;Yan Yuhong
通讯作者：
Yan Yuhong
影响因子：
7.4
作者：
G. Malumbela;P. Moyo;M. Alexander
通讯作者：
G. Malumbela;P. Moyo;M. Alexander
DOI：
10.14359/14856
发表时间：
2005-10
期刊：
SP-230: 7th International Symposium on Fiber-Reinforced (FRP) Polymer Reinforcement for Concrete Structures
影响因子：
--
作者：
O. Rosenboom;S. Rizkalla
通讯作者：
O. Rosenboom;S. Rizkalla
DOI：
10.1016/j.compositesa.2005.05.035
发表时间：
2006-08
影响因子：
8.7
作者：
C. Gheorghiu;P. Labossiére;J. Proulx
通讯作者：
C. Gheorghiu;P. Labossiére;J. Proulx