Comparison between Organic and Inorganic Matrices for RC Beams Strengthened with Carbon Fiber Sheets
Comparison between Organic and Inorganic Matrices for RC Beams Strengthened with Carbon Fiber Sheets
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DOI：
10.1061/(asce)1090-0268(2007)11:5(507
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发表时间：
2007-10
影响因子：
4.6
通讯作者：
H. Toutanji;H. Toutanji;Yong Deng;Yong Deng
中科院分区：
文献类型：
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作者：
H. Toutanji;H. Toutanji;Yong Deng;Yong Deng
本文的目的是研究和比较无机和有机树脂基碳纤维布加固混凝土梁的性能。试验研究包括两组钢筋混凝土梁的测试。第一组梁采用碳纤维布与有机基体粘结加固，第二组梁采用碳纤维布与无机基体粘结加固。第一组梁分别采用2、3、4层碳纤维布加固，第二组梁分别采用2、3、4、5层碳纤维布加固。比较了两种体系加固梁的强度、刚度、延性、挠度、破坏形态和开裂情况。结果表明，无机基体体系与有机基体体系一样，能有效地提高钢筋混凝土梁的强度和刚度。然而，无机体系的破坏机制似乎更脆弱。对离子束加固梁的破坏进行了分析。
The objective of this paper is to study and compare the performance of concrete beams strengthened with carbon fiber sheets bonded with inorganic and organic resin matrices. The experimental study consisted of testing two groups of steel-reinforced concrete beams. The first group of beams was strengthened with carbon fiber sheets bonded with an organic matrix, and the second with carbon fiber sheets bonded with an inorganic matrix. The first group of beams was strengthened with 2, 3, and 4 layers of carbon fiber sheets, while the second group was strengthened with 2, 3, 4, and 5 layers of carbon fiber sheets. Strength, stiffness, ductility, deflection, failure pattern, and cracking of beams strengthened with the two systems were compared. Results showed that the inorganic matrix system is as effective in increasing strength and stiffness of reinforced concrete beams as the organic matrix. The failure mechanism of the inorganic system, however, seems more brittle. The failure of beams strengthened with ino...