SHEAR BEHAVIOR OF HIGH STRENGTH CONCRETE BEAMS REINFORCED WITH GFRP BARS AND STRENGTHENED BY CFRP SHEETS

Authors

  • Raid Mohammed AlShadidi Civil Engineering Department, University of Maysan , Maysan, Iraq Author
  • Hassan Falah Hassan Civil Engineering Department, Al-Mustansiriayah University, Baghdad, Iraq Author
  • Mohammed Hashim Mohammed Highway and Transportation Engineering Department, College of Engineering, Al-Mustansiriya University Baghdad – Iraq Author

Keywords:

GFRP bars, CFRP Strengthening, Shear Behavior, High-Strength concrete

Abstract

This paper presents an experimental investigation on shear behavior of Glass Fiber Reinforced Polymer (GFRP) reinforced high strength concrete beams externally strengthened in shear using Carbon Fiber Reinforced Polymer (CFRP) with various configurations: full side sheets, U-strips, vertical side strips and diagonal side strips; and three steel fiber ratios (0%, 0.5% and 1%). Results show that using GFRP bars as tension reinforcement instead of traditional steel bars slightly increases ultimate load but shows lower stiffness. Although internal steel stirrups are still the most effective way to enhance shear capacity of concrete beams, externally bonded CFRP U-strips can also be an effective alternative for durability and/or architectural considerations with about 85% strength efficiency and comparable load-deflection behavior. A combination of U-strips and sufficient amount of steel fiber is shown to perform better than steel stirrups in terms of increasing carrying capacity and decreasing deflections of GFRP reinforced concrete beams.

 

Downloads

Published

2016-01-01

Issue

Vol. 20 No. 1 (2016): Journal of Engineering and Development

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The Journal of Engineering and Sustainable Development is an open-access journal that all contents are free of charge. Articles of this journal are licensed under the terms of the Creative Commons Attribution International Public License CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/legalcode) that licensees are unrestrictly allowed to search, download, share, distribute, print, or link to the full texts of the articles, crawl them for indexing and reproduce any medium of the articles provided that they give the author(s) proper credits (citation). The journal allows the author(s) to retain the copyright of their published article.
Creative Commons-Attribution (BY)

How to Cite

SHEAR BEHAVIOR OF HIGH STRENGTH CONCRETE BEAMS REINFORCED WITH GFRP BARS AND STRENGTHENED BY CFRP SHEETS. (2016). Journal of Engineering and Sustainable Development, 20(1), 102-117. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/636

Most read articles by the same author(s)