Shear Strengthening of Reinforced Concrete Beams Using Epoxy-Bonded FRP Composites
Shear Strengthening of Reinforced Concrete Beams Using Epoxy-Bonded FRP Composites
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DOI：
10.14359/531
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发表时间：
1998-03
影响因子：
1.8
通讯作者：
T. Triantafillou
中科院分区：
文献类型：
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作者：
T. Triantafillou
研究了纤维增强复合材料（FRP）层合板或纤维布作为钢筋混凝土梁抗剪加固材料的应用。该研究旨在增加使用复合材料的混凝土抗剪加固的实验数据库，最重要的是，在现代规范格式的框架内，基于极限状态，为此类构件的设计开发分析模型。实验部分的研究涉及测试11个混凝土梁，加强在剪切与碳纤维增强塑料在不同的面积分数和纤维配置，而分析部分导致在一个模型中的贡献FRP抗剪承载力的类比与钢箍筋，与有效的FRP应变，随着FRP轴向刚度的增加而减少。结果表明，该技术的有效性几乎线性增加的FRP轴向刚度，并达到最大值，超过它变化很小。
The paper deals with the application of fiber reinforced polymer (FRP) laminates or fabrics as shear strengthening materials for reinforced concrete beams. The study aims at increasing the experimental database on shear strengthening of concrete using composites and, most importantly, developing an analytical model for the design of such members within the framework of modern code formats, based on ultimate limit states. The experimental part of the study involved testing of eleven concrete beams, strengthened in shear with carbon FRP at various area fractions and fiber configurations, while the analytical part resulted in a model for the contribution of FRP to shear capacity in analogy with steel stirrups, with an effective FRP strain that decreases with increasing FRP axial rigidity. It is shown that the effectiveness of the technique increases almost linearly with the FRP axial rigidity and reaches a maximum, beyond which it varies very little.