Analytical investigation on bond behavior between concrete and FRP bars of near-surface mounted and embedded through-section strengthening methods

Authors

  • Nakares Kongmalai ภาควิชาวิศวกรรมโยธา คณะวิศวกรรมศาสตร์ จุฬาลงกรณ์มหาวิทยาลัย
  • Linh Van Hong Bui
  • Pitcha Jongvivatsakul

Keywords:

Bond behavior, Fiber-reinforced polymer, Near-surface mounted, Embedded through-section, Strengthening

Abstract

The strengthening techniques are to enhance the performance of existing reinforced concrete (RC) structures. This research aims to investigate the bond behavior between fiber-reinforced polymer (FRP) bars and concrete interfaces of near-surface mounted (NSM) strengthening method and the embedded through-section (ETS) strengthening technique. Bond models for two strengthening methods are developed considering various crucial parameters. The effects of concrete compressive strength, embedment length, and modulus of elasticity of FRP bars on the bond responses between two retrofitting methods are analytically investigated to interpret the results through bond models.

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References

Chaallal, O., Mofidi, A., Benmokrane, B., & Neale, K. (2011). Embedded through-section FRP rod method for shear strengthening of RC beams: performance and comparison with existing techniques. Journal of Composites for Construction, 15(3), 374-383.

Dai, J., Tamon, U., & Yasuhiko, S. (2005). Development of the nonlinear bond stress-slip model of fiber reinforced plastics sheet-concrete interfaces with a simple method. Journal of Composites for Construction, 9(1), 52-62.

Godat, A., L’hady, A., Chaallal, O., & Neale, K. (2012). Bond behavior of the ETS FRP bar shear-strengthening method. Journal of Composites for Construction, 16(5), 529539.
NCCE25

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Published

2020-07-07

How to Cite

[1]
Kongmalai, N. et al. 2020. Analytical investigation on bond behavior between concrete and FRP bars of near-surface mounted and embedded through-section strengthening methods . The 25th National Convention on Civil Engineering. 25, (Jul. 2020), MAT02.

Issue

Vol. 25 (2020): Proceeding: The 25th National Convention on Civil Engineering

Section

Construction Material Engineering

Categories

License

บทความทั้งหมดที่ได้รับการคัดเลือกให้นำเสนอผลงานในการประชุมวิชาการวิศวกรรมโยธาแห่งชาติ ครั้งที่ 25 นี้ เป็นลิขสิทธิ์ของ วิศวกรรมสถานแห่งประเทศไทย ในพระบรมราชูปถัมภ์

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