Behavior and Load Capacity of Concrete Slab Reinforced by CFRP Bar and Strengthening by CFRP Laminates

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-05-12 DOI:10.2478/cee-2023-0007

M. Medhlom, Entidhar Abed

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引用次数: 0

Abstract

Abstract The most common FRP materials used are carbon fiber reinforced polymers (CFRPs), and glass fiber reinforced polymers (GFRPs). The use of CFRPs has grown rapidly in the construction industry, specifically in structural retrofitting, due to their strengthening property of CFRP. CFRPs are moreover high strength, lightweight, noncorrosive, and easy-to-install materials. In the present study, six reinforced concrete slab specimens included two control specimens reinforced by traditional steel reinforcements and the other reinforced by carbon fiber reinforced polymer CFRP bars without strengthening by laminated CFRP strips. The remaining four specimens are interiorly reinforced by CFRP bars and strengthened by CFRP laminates strips with different scheme layouts named Type 1 and Type 2. The specimens were tested under a uniformly distributed load applied at the top surface area of each specimen up to failure. The parameters considered in the present study are the amount of CFRP bars and CFRP laminates layout. Test results indicated that the strength carrying capacity and failure mode of tested specimens differ based on the steel reinforcement type and the presence of CFRP laminates layout.

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碳纤维布加固混凝土板的受力性能

摘要最常用的FRP材料是碳纤维增强聚合物（CFRP）和玻璃纤维增强聚合物。CFRP的使用在建筑行业迅速增长，特别是在结构改造中，因为它们具有CFRP的增强性能。此外，CFRP是高强度、轻质、无腐蚀性和易于安装的材料。在本研究中，六个钢筋混凝土板试件包括两个由传统钢筋加固的控制试件和另一个由碳纤维增强聚合物CFRP筋加固的未经层压CFRP带加固的控制试样。其余四个试件由CFRP筋进行内部加固，并由CFRP层压板条进行加固，具有不同的方案布局，分别命名为类型1和类型2。试样在均匀分布的载荷下进行测试，载荷施加在每个试样的顶表面区域，直至失效。本研究中考虑的参数是CFRP筋的数量和CFRP层压板的布局。试验结果表明，试件的强度承载能力和破坏模式因钢筋类型和CFRP层压板布局的不同而不同。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.