Behaviour of hybrid (steel and FRP bars) reinforced concrete (RC) beam-columns under blast pressure and impact load: a state-of-the-art review

Finite Element Analysis of the Flexural Performance of Hybrid (Steel-BFRP) RC Beams under Repeated Loading: Verification and Parametric Investigation

The corrosion of steel bars in reinforced concrete structures subjected to harsh environments remains a significant challenge. Fiber-reinforced polymer (FRP) composites have been investigated as potential alternatives to conventional steel reinforcement. While basalt fiber-reinforced polymer (BFRP) bars exhibit high te...

Study on the Flexural Performance of High-Strength Concrete Beams Reinforced with Hybrid GFRP Bars and High-Strength Steel Bars

To investigate the flexural behavior of high-strength concrete beams reinforced with a hybrid configuration of GFRP bars and high-strength steel bars, four-point bending tests were conducted on five C80 high-strength concrete beams, with the reinforcement ratios of high-strength steel bars and GFRP bars taken as the ma...

Experimental investigation on the behavior and strengthening of opened joints in stepped reinforced concrete beams using CFRP, steel plates, and NSM reinforcement

This study experimentally investigates the structural behavior of reinforced concrete (RC) stepped beams with opened joints, commonly used in sloping roofs, ramps, and stairs. Unlike conventional beams, stepped beams develop combined axial force and bending moment at the joint, resulting in complex normal and shear str...

Hybrid-reinforced concrete columns incorporating direct-wound rectangular CFRP ties: Numerical investigation and confinement model

Fiber-reinforced polymers (FRPs) are being increasingly applied as reinforcement in new concrete structures, particularly in aggressive environments, owing to their better mechanical and durability properties and ease of installation. However, the brittle failure of FRP bars, combined with the inadequate confinement...

Axial compressive behavior of lightweight ultra-high performance concrete columns reinforced with steel and GFRP bars

Study on Concrete Confined Effectiveness with FRP Bars

Corrosion of steel reinforcement is a major cause of deterioration in reinforced concrete (RC) structures exposed to aggressive environments. Although fiber-reinforced polymer (FRP) reinforcement provides excellent corrosion resistance, its confinement effectiveness in RC columns has not been fully understood. This stu...