Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Fracture Vol. 16, No. 59 (2022)

Experimental assessment of different strengthening techniques for opening in reinforced concrete beams

Author and affiliation details
DOI
10.3221/IGF-ESIS.59.36
Pages
549-565
Published
Licence
CC BY 4.0
Published inVol. 16, No. 59 (2022)Go to the issue

Abstract

The present experimental study includes testing thirteen reinforced concrete beams with openings at different locations to investigate the efficiency of strengthening such openings. Different strengthening techniques around the opening after and before casting include diagonal bars, upper and lower steel, and carbon fiber reinforced polymers (CFRP), were examined. All beams were made from 30 MPa compressive strength and tested under four-point loading.  The cross section of the beams is 400 mm depth x 160 mm width and beam length 2400 mm. The dimensions of the opening are 200 mm x 200 mm. The stiffness, deflection, failure load, and failure mode of the strengthened beams were discussed. Experimental results showed that the beams strengthened with upper and lower steel around opening at mid-span increase the load-carrying capacity by 16.59%. However, beams strengthened by CFRP sheets around the opening in the shear zone increase the load carrying capacity by 47.7% compared to opened beam.

Keywords

Article history

  1. ReceivedUntil the next stage: 79 days
  2. RevisedUntil the next stage: 76 days
  3. AcceptedUntil the next stage: 3 days
  4. Published

How to cite

APA

Agag, F., Ahmad, S. S. E., & Sallam, H. E.-D. M. (2021). Experimental assessment of different strengthening techniques for opening in reinforced concrete beams. Fracture and Structural Integrity, 16(59), 549–565. https://doi.org/10.3221/IGF-ESIS.59.36

IEEE

F. Agag, S. S. E. Ahmad, and H. E.-D. M. Sallam, “Experimental assessment of different strengthening techniques for opening in reinforced concrete beams,” Fracture and Structural Integrity, vol. 16, no. 59, pp. 549–565, 2021, doi: 10.3221/IGF-ESIS.59.36.

MLA

Agag, Fatma, et al. “Experimental assessment of different strengthening techniques for opening in reinforced concrete beams.” Fracture and Structural Integrity, vol. 16, no. 59, 2021, pp. 549–565. https://doi.org/10.3221/IGF-ESIS.59.36.

Chicago

Agag, Fatma, Seleem S. E. Ahmad, and Hossam El-Din M. Sallam. 2021. “Experimental assessment of different strengthening techniques for opening in reinforced concrete beams.” Fracture and Structural Integrity 16 (59): 549–565. https://doi.org/10.3221/IGF-ESIS.59.36.

Harvard

Agag, F., Ahmad, S.S.E. and Sallam, H.E.D.M. (2021) ‘Experimental assessment of different strengthening techniques for opening in reinforced concrete beams’, Fracture and Structural Integrity, 16(59), pp. 549–565. doi: 10.3221/IGF-ESIS.59.36.

Vancouver

Agag F, Ahmad SSE, Sallam HEDM. Experimental assessment of different strengthening techniques for opening in reinforced concrete beams. Fracture and Structural Integrity. 2021;16(59):549-565. doi:10.3221/IGF-ESIS.59.36

BibTeX

@article{agag2021, author = {Agag, Fatma and Ahmad, Seleem S. E. and Sallam, Hossam El-Din M.}, title = {Experimental assessment of different strengthening techniques for opening in reinforced concrete beams}, journal = {Fracture and Structural Integrity}, year = {2021}, volume = {16}, number = {59}, pages = {549--565}, doi = {10.3221/IGF-ESIS.59.36}, url = {https://doi.org/10.3221/IGF-ESIS.59.36}, issn = {1971-8993} }

RIS

TY - JOUR AU - Agag, Fatma AU - Ahmad, Seleem S. E. AU - Sallam, Hossam El-Din M. TI - Experimental assessment of different strengthening techniques for opening in reinforced concrete beams JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2021 DA - 2021/12/22 VL - 16 IS - 59 SP - 549 EP - 565 DO - 10.3221/IGF-ESIS.59.36 UR - https://doi.org/10.3221/IGF-ESIS.59.36 SN - 1971-8993 ER -

Licence

Creative Commons Attribution 4.0 International

May be shared and adapted, provided appropriate credit is given. Copyright © 2021 Fatma Agag, Seleem S. E. Ahmad, Hossam El-Din M. Sallam.

Copyright 
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

Open Access Statement

Fracture and Structural Integrity (F&SI) is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the DOAI definition of open access.

F&SI operates under the Creative Commons Licence Attribution 4.0 International (CC-BY 4.0). This allows to copy and redistribute the material in any medium or format, to remix, transform and build upon the material for any purpose, even commercially, but giving appropriate credit, providing a link to the license, and indicating if changes were made.

Similar articles

Most read articles by the same author(s)