Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Integrity of materials and structures Vol. 18, No. 68 (2024)

Enhancement of punching shear behavior of reinforced concrete flat slabs using GFRP grating

Author and affiliation details
  • Ahmed Mahmoud Corresponding author Benha University, Faculty of Engineering at Shoubra, Civil Engineering Department, 108 Shoubra Street, Shoubra 11691, Cairo, Egypt ahmed.m5882@gmail.com
  • Haitham F. Mostafa Benha University, Faculty of Engineering at Shoubra, Civil Engineering Department, 108 Shoubra Street, Shoubra 11691, Cairo, Egypt ORCID iD0009-0004-2287-7564
  • Tarek S. Mostafa Benha University, Faculty of Engineering at Shoubra, Civil Engineering Department, 108 Shoubra Street, Shoubra 11691, Cairo, Egypt ORCID iD0000-0003-1327-8143
  • Ahmed N. Khater Benha University, Faculty of Engineering at Shoubra, Civil Engineering Department, 108 Shoubra Street, Shoubra 11691, Cairo, Egypt ORCID iD0000-0003-4528-8979
DOI
10.3221/IGF-ESIS.68.02
Pages
19-44
Published
Licence
CC BY 4.0
Published inVol. 18, No. 68 (2024)Go to the issue

Abstract

The literature review showed insufficient relevant research on the application of Glass-Fiber-Reinforced-Polymers (GFRP) gratings in the structural elements, while GFRP bars, laminate, sheets, and strips, have been extensively explored. This research aims to present a proposal for a new reinforcing system using GFRP gratings to improve the punching shear resistance of RC flat slabs. Results of seven specimens tested experimentally under vertical static loading are displayed, taking into account the influence of the gratings variables. Test results revealed an improvement in the ultimate load ranging between 9.03% and 27.67% for the specimens strengthened by the proposed GFRP grating system. A Nonlinear Finite Element Analysis (NLFEA) was carried out using the ANSYS program with correlational evaluation using load-deflection response and cracking pattern, which resulted in a good convergence of numerical simulations and experimental performance results ranging from 1.0% to 8.0%. Key parameters, namely the concrete compressive strength, steel reinforcement yield strength, main steel reinforcement ratio, secondary steel reinforcement ratio, column dimensions, slab thickness, concrete cover, and GFRP gratings characteristics, were investigated through a parametric study adopting NLFEA by the ANSYS program, where the output results were compared to the recent code provisions.

Keywords

Article history

  1. ReceivedUntil the next stage: 109 days
  2. RevisedUntil the next stage: 13 days
  3. AcceptedUntil the next stage: 46 days
  4. Published

About the authors

Haitham F. Mostafa

Research Assistant , Civil Engineering Department, Faculty of Engineering (Shoubra), Benha University, Cairo, Egypt

Tarek S. Mostafa

Associate Professor, Civil Engineering Department, Faculty of Engineering (Shoubra), Benha University, Cairo, Egypt

 

Ahmed N. Khater

Assistance Professor, Civil Engineering Department, Faculty of Engineering (Shoubra), Benha University, Cairo, Egypt

How to cite

APA

Mahmoud, A., Mostafa, H., Mostafa, T., & Khater, A. (2024). Enhancement of punching shear behavior of reinforced concrete flat slabs using GFRP grating. Fracture and Structural Integrity, 18(68), 19–44. https://doi.org/10.3221/IGF-ESIS.68.02

IEEE

A. Mahmoud, H. Mostafa, T. Mostafa, and A. Khater, “Enhancement of punching shear behavior of reinforced concrete flat slabs using GFRP grating,” Fracture and Structural Integrity, vol. 18, no. 68, pp. 19–44, 2024, doi: 10.3221/IGF-ESIS.68.02.

MLA

Mahmoud, Ahmed, et al. “Enhancement of punching shear behavior of reinforced concrete flat slabs using GFRP grating.” Fracture and Structural Integrity, vol. 18, no. 68, 2024, pp. 19–44. https://doi.org/10.3221/IGF-ESIS.68.02.

Chicago

Mahmoud, Ahmed, Haitham Mostafa, Tarek Mostafa, and Ahmed Khater. 2024. “Enhancement of punching shear behavior of reinforced concrete flat slabs using GFRP grating.” Fracture and Structural Integrity 18 (68): 19–44. https://doi.org/10.3221/IGF-ESIS.68.02.

Harvard

Mahmoud, A., Mostafa, H., Mostafa, T. and Khater, A. (2024) ‘Enhancement of punching shear behavior of reinforced concrete flat slabs using GFRP grating’, Fracture and Structural Integrity, 18(68), pp. 19–44. doi: 10.3221/IGF-ESIS.68.02.

Vancouver

Mahmoud A, Mostafa H, Mostafa T, Khater A. Enhancement of punching shear behavior of reinforced concrete flat slabs using GFRP grating. Fracture and Structural Integrity. 2024;18(68):19-44. doi:10.3221/IGF-ESIS.68.02

BibTeX

@article{mahmoud2024, author = {Mahmoud, Ahmed and Mostafa, Haitham and Mostafa, Tarek and Khater, Ahmed}, title = {Enhancement of punching shear behavior of reinforced concrete flat slabs using GFRP grating}, journal = {Fracture and Structural Integrity}, year = {2024}, volume = {18}, number = {68}, pages = {19--44}, doi = {10.3221/IGF-ESIS.68.02}, url = {https://doi.org/10.3221/IGF-ESIS.68.02}, issn = {1971-8993} }

RIS

TY - JOUR AU - Mahmoud, Ahmed AU - Mostafa, Haitham AU - Mostafa, Tarek AU - Khater, Ahmed TI - Enhancement of punching shear behavior of reinforced concrete flat slabs using GFRP grating JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2024 DA - 2024/02/15 VL - 18 IS - 68 SP - 19 EP - 44 DO - 10.3221/IGF-ESIS.68.02 UR - https://doi.org/10.3221/IGF-ESIS.68.02 SN - 1971-8993 ER -

Licence

Creative Commons Attribution 4.0 International

May be shared and adapted, provided appropriate credit is given. Copyright © 2024 Ahmed Mahmoud, Haitham F. Mostafa, Tarek S. Mostafa , Ahmed N. Khater.

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

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