Browse > Article
http://dx.doi.org/10.21289/KSIC.2022.25.6.1165

Evaluation of Flexural Performance of Reinforced Concrete Beams Strengthened by Carbon Fiber Sheet Considering End Anchorage Effect  

Lee, Chang-Hyun (Korea Infra Management Co. Ltd.)
Eo, Seok-Hong (Changwon National University)
Publication Information
Journal of the Korean Society of Industry Convergence / v.25, no.6_3, 2022 , pp. 1165-1171 More about this Journal
Abstract
In this paper, the results of an experimental study were presented by measuring and comparing the flexural strength and deformation on the carbon fiber sheet strength reinforced concrete beam considering end anchorage effect. For this purpose, total six specimens of 100×100×600mm size were prepared and tested according to the KDS 14 20 20. The specimens were categorized in three cases as reference beams without strengthening, beams carbon fiber strengthened but not anchored and beams carbon fiber strengthened also anchored. Experimental results showed that the end anchorage contributed to increase the flexural strength about 42% greater than that of carbon fiber sheets alone, and the number and width of cracks were relatively increased. The results support a considerable effects of end anchorage for carbon fiber strengthened reinforced concrete beams in enhancing the flexural performance. Further studies are needed in durability and long term behavior of carbon fiber sheet strengthened reinforced concrete beams.
Keywords
Flexural Strength Test; Carbon Fiber Sheet; Anchorage Effect; Flexural Strength; Deflection; Crack;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Seong-Hwi Song, "An Analytical Study on the Earthquake-Resistance Capacity of RC Columns Reinforced with Carbon Fiber Sheet", M.S. Thesis, Hnayang University, Feb, (2020).
2 Chi-Moon Won, "Experimental Study about Flexural Strengthening Effects According to Developmnt Method of Carbon Fiber Sheet for Reinforced Concrete Beam", Journal of the Korea Structural Maintenance Inspection Institute, Vol. 10, No. 4, pp. 119-126, (2006).
3 Seong-Do Kim, "Flexural Behaviors of Reinforced Concrete Beams Strengthened with Carbon Fiber Sheets", Journal of the Korea Computational Structural Engineering Institute, Vol. 23, No. 2, pp. 227-234, (2010).
4 Hee-Man Park, "An Experimental Study of the Flexural Strengthening Efeect on Recycled Coarse Aggregate RC Beams Strengthened with Carbon Fiber Reinforced Polymer Sheets", M.S. Thesis, Kumoh National Institute of Technology, DEC, (2012).
5 Jong-Sup Park, Woo-Tai Jung, Young-Jun You, Young-Hwan Park, "An Estimate of Flexural Strength for Reinforce Concrete Beams Strengthened with CFRP Sheets", Journal of the Korea Concrete Institute, Vol. 17, No. 2, pp. 213-220, (2005).   DOI
6 Chang-Hyun Lee, Seok-Hong Eo, "Flexraul Strength and Durability Evaluation by Freezing and Thawing Test of Repaired Reinforced Concrete Beams", Journal of the Korea Contents Associatation, Vol. 18, No.1, pp. 455-461, (2018).
7 Jeong-Won Park, Sang-Yeol Park, Chang-Sik Min, "An Experimental Study of Flexural Repair Reinforced Concrete Beams with the CFRP Sheet", Journal of the Korea Concrete Institute, pp. 781-786, Spring, (2000).
8 Tae-Hyo Park, Jun-Seong Bu, "Flexural Analysis of RC Beams Strengthened with Soffit and Web Fiber Sheets", Journal of the Korean Society of Civil Engineers, Vol. 22, No. 5-A, pp. 1045-1057, (2002).