<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In recent years, CFRP is the most popular material in strengthening RC members (columns, beams, slabs…etc.) as well as the textile-reinforced mortar (TRM) was also used as an alternative method for strengthening RC columns. The present study includes fifteen circular RC columns: One control column, ten columns strengthened by one or two layers of CFRP using EBR or EBROG methods, two columns was strengthened by textile-reinforced epoxy on grooves and last two columns were strengthened by textile reinforced mortar without grooves. The parameters of this investigation are type of strengthening technique (EBR, EBROG and TRM), number of CFRP layers, and the grooves configuration. The results showed that the columns strengthened longitudinally with one or two layers of CFRP strips using EBR technique enhanced the load-carrying capacity by 2 and 7.13%, respectively, when compared with control column. However, the load carrying capacity of RC columns strengthened by EBROG increased by the range of 11.65% to 71.4%. in comparison with control column. Finally, TRM strengthening method enhanced the load carrying capacity by about 21% to 58.5%. Also, the results showed that the EBROG and TRM approaches were improved the stiffness and ductility of the columns in comparison with EBR method.</p>
</abstract>

In recent years, CFRP is the most popular material in strengthening RC members (columns, beams, slabs…etc.) as well as the textile-reinforced mortar (TRM) was also used as an alternative method for strengthening RC columns. The present study includes fifteen circular RC columns: One control column, ten columns strengthened by one or two layers of CFRP using EBR or EBROG methods, two columns was strengthened by textile-reinforced epoxy on grooves and last two columns were strengthened by textile reinforced mortar without grooves. The parameters of this investigation are type of strengthening technique (EBR, EBROG and TRM), number of CFRP layers, and the grooves configuration. The results showed that the columns strengthened longitudinally with one or two layers of CFRP strips using EBR technique enhanced the load-carrying capacity by 2 and 7.13%, respectively, when compared with control column. However, the load carrying capacity of RC columns strengthened by EBROG increased by the range of 11.65% to 71.4%. in comparison with control column. Finally, TRM strengthening method enhanced the load carrying capacity by about 21% to 58.5%. Also, the results showed that the EBROG and TRM approaches were improved the stiffness and ductility of the columns in comparison with EBR method.

Behavior of Circular Reinforced Concrete Columns Strengthened by Different Techniques Subjected to Axial Loading

Civil and Environmental Engineering

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

In recent years, CFRP is the most popular material in strengthening RC members (columns, beams, slabs…etc.) as well as the textile-reinforced mortar (TRM) was...

Behavior of Circular Reinforced Concrete Columns Strengthened by Different Techniques Subjected to Axial Loading

Published Online: Jun 26, 2024

Page range: 319 - 331

DOI: https://doi.org/10.2478/cee-2024-0025

Keywords
Strengthening, EBROG, TRM, Grooves, Concentric loading

© 2024 Ahmed T. Hasan et al., published by Sciendo

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

Behavior of Circular Reinforced Concrete Columns Strengthened by Different Techniques Subjected to Axial Loading

Published Online: Jun 26, 2024

Page range: 319 - 331

DOI: https://doi.org/10.2478/cee-2024-0025

KeywordsStrengthening, EBROG, TRM, Grooves, Concentric loading

© 2024 Ahmed T. Hasan et al., published by Sciendo

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

Keywords
Strengthening, EBROG, TRM, Grooves, Concentric loading