The IUP Journal of Structural Engineering
Finite Element Analysis of Reinforced Concrete Deep Beams Strengthened with Different Shapes of Reinforcement and CFRP Sheets

Article Details
Pub. Date : Jan, 2024
Product Name : The IUP Journal of Structural Engineering
Product Type : Article
Product Code : IJSE010124
Author Name : Lakshmi C, Sridhar R, Prasad CSMV and Sinchana S
Availability : YES
Subject/Domain : Science and Technology
Download Format : PDF Format
No. of Pages : 15



Shear failure is a crucial criterion in reinforced concrete (RC) deep beams. The paper studies the behavior of five deep beams reinforced with varied shapes of reinforcement and CFRP sheets. Two samples were analyzed using the conventional type shear reinforcement; the third sample had truss-shaped shear reinforcement, combos of strut and tie; the fourth had a Rolled I section to better understand how deep beams behave compositely; and the fifth was conventional type beam wrapped with 1.8 mm thickness CFRP sheet, tested for shear. Several variables were investigated using Abaqus software, including S-Tresca stress, percentage of shear reinforcement, load versus deflection, shear stress and equivalent plastic strain.


Deep beams are beams that have substantial depths in relation to their spans. Simply supported beams are considered deep if their effective span is less than twice as deep as their total depth, and continuous beams are considered deep if their L/D ratios are less than 2.5, according to clause 29 of IS: 456 (2000).

When the shear span-to-depth ratio of deep beams falls below 2.5 to 0.5, the reinforcement for shear perpendicular to the longitudinal axis is no longer as efficient as it is in normal beams. The shear capacity will also be increased by dispersed reinforcement running parallel to the longitudinal axis. Using the shear


CFRP, Truss shape reinforcement, Composite deep beam, Equivalent plastic strain, S-Tresca stresses, Load versus deflection