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Updated: Sep 22, 2025

Preparation of Aligned Steel Fiber Reinforced Cementitious Composite and Its Flexural Behavior
Published on: June 27, 2018
Structural Behavior of FRP-Retrofitted RC Beams under Combined Torsion and Bending
Ahad Amini Pishro1, Shiquan Zhang2, Zhengrui Zhang1
1Civil Engineering Department, Sichuan University of Science and Engineering, Zigong 643000, China.
Abstract:
Fiber-reinforced polymers (FRPs) retrofit reinforced concrete (RC) structures. ABAQUS finite element software was used to perform numerical parametric analysis on a group of RC beams in this research. All specimens were retrofitted by FRP strips as an external retrofitting and experimentally tested up to previous researchers' failure points. The range of subjects examined in these RC beams included cracking torque, ultimate torque, angle of twist, and the effect of using FRP on these subjects. We applied artificial neural networks (ANNs) to predict the structural behavior of RC beams under combined torsion and bending to develop the research accuracy. After testing, the ANN results were compared with the ABAQUS results. Consequently, a reasonable examination of the determined mathematical and trial results confirmed this study's logical accuracy in predicting retrofitted RC beams' structural behavior under combined loading.
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