Strengthening of Reinforced Concrete Beams with Textile-Reinforced Concrete

IF 1.1 Q3 ENGINEERING, CIVIL
Marwa Abd-Al-Naser, Ibrahim S. I. Harba
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引用次数: 0

Abstract

Abstract Numerous problems that can occur during regular building use may necessitate the need for reinforced concrete RC members to be strengthened. An increase in live loads or structural damage is two examples. Various techniques can be used to increase load-carrying capability. Concrete reinforcement with textile-carbon fiber (TCF) is a more recent option. For almost all active forces, this strengthening procedure is appropriate. For bending, shear, torsion, or axial forces, strengthening is an option. The experimental work for this study examined the impact of textile carbon mesh in reinforced concrete with various numbers of layers and sikadure-330 as the bonding material with different damage ratio (0%, 45%, 55% and 70%). As well as the flexural behavior of reinforced concrete beams strengthened with TCF, by casting and testing 13 beams under the monotonic load, one of them represented the control beam, they designed according to ACI 318-14 to ensure flexural failure. From the results obtained in this study it was shown that the flexural capacity of all strengthened beams increased as a consequence of TCF strengthening. Therefore, TCF jacketing is a very promising technique for increasing reinforced concrete flexural capability, which is necessary for retrofitting and strengthening.
用纺织品加固混凝土加固钢筋混凝土梁
摘要 在建筑物的正常使用过程中可能会出现许多问题,因此有必要对钢筋混凝土 RC 构件进行加固。活荷载增加或结构损坏就是两个例子。可以使用各种技术来提高承载能力。使用纺织碳纤维(TCF)加固混凝土是最近的一种选择。这种加固方法适用于几乎所有的作用力。对于弯曲、剪切、扭转或轴向力,加固都是一种选择。本研究的实验工作考察了碳纤维纺织网在不同层数的钢筋混凝土中的影响,并以 sikadure-330 作为不同损坏率(0%、45%、55% 和 70%)的粘合材料。至于用 TCF 加固的钢筋混凝土梁的抗弯行为,则是通过在单调荷载下浇注和测试 13 根梁,其中一根代表对照梁,它们是根据 ACI 318-14 设计的,以确保抗弯破坏。研究结果表明,TCF 加固后,所有加固梁的抗弯能力都有所提高。因此,TCF 护套是一种非常有前途的提高钢筋混凝土抗弯能力的技术,这对于改造和加固非常必要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
2.00
自引率
58.30%
发文量
69
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