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All Journal Civil Engineering Dimension
Alaa Adnan Hafedh
Ministry of Construction, Housing and Public Municipalities, General Directorate of Water, Water Directorate Kirkuk
Civil Engineering, Building, Construction & Architecture

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Finite Element-based Optimization of Shear-Strengthening Strategies for I-Shaped RC Beams using Hybrid Materials and Plate Reinforcement Mayadah W. Falah; Alaa Adnan Hafedh; Maryam H. Naser; Zainab Al-Khafaji
Civil Engineering Dimension Vol. 28 No. 2 (2026): SEPTEMBER 2026
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.28.2.179-192

Abstract

This study investigates the shear-strengthening performance of I-shaped reinforced concrete (RC) beams using advanced materials and external steel plate configurations through nonlinear finite element modeling (FEM) in ANSYS. Three shear enhancement techniques were evaluated: high-strength concrete (HSC), steel fiber-reinforced concrete (SFRC), and externally bonded steel plates of different configurations (full-length, vertical, inclined). The FEM models were validated against experimental results with a deviation of less than 2%, demonstrating excellent predictive accuracy. Results reveal that inclined and full-length steel plates achieved the greatest improvement in shear capacity of up to 22% compared to control specimens. In comparison, SFRC provided a comparable 17.5% increase, while offering additional advantages such as improved durability and corrosion resistance. Additionally, the influence of web material replacement on crack propagation and load redistribution was examined. This study provides a comprehensive comparison of shear-strengthening methods and offers practical insights into effective retrofit strategies for existing RC structures under increased service demands.
Co-Authors Maryam H. Naser Mayadah W. Falah Zainab Al-Khafaji