One of the many alternative methods developed to address the corrosion problem of steel reinforcements is the use of hybrid reinforcement composed of a fiber-reinforced polymer (FRP)-wrapped ribbed steel reinforcing bars. However, the number of layers and thickness of the FRP wraps on the ribbed steel core affect the mechanical properties of the glass FRP (GFRP)–steel hybrid reinforcement. In this study, in order to increase the ductility of the hybrid reinforcements, 27 types of hybrid bars were produced by wrapping E-glass fibers at an angle around the steel reinforcement using the filament winding method. The effects of steel reinforcement diameter (8, 10 and 12 mm), steel–FRP ratio and number of glass fiber layers (one, two and three layers) on the tensile properties of hybrid reinforcement were investigated. The experimental results on hybrid bars were compared to the respective values of the plain GFRP and carbon FRP (CFRP) reinforcing bars as well as the results on hybrid bars in the literature. In addition, a theoretical stress–strain model was proposed for the GFRP-wrapped steel reinforcing bar. The study showed that increasing the FRP ratio in the hybrid reinforcement increased the ductility of the reinforcement, although the yielding stress was reduced. The strain of glass-wrapped ribbed steel reinforcements under maximum stress varied between 4.14 and 6.22%. The energy absorption capacity of the GFRP-wrapped reinforcement was observed to be higher than that of the plain GFRP, CFRP and the other hybrid bars. In addition, the developed theoretical model was found to be compatible with the experimental results.

为解决钢筋腐蚀问题而开发的众多替代方法之一是使用由纤维增强聚合物 (FRP) 包裹的带肋钢筋组成的混合钢筋。然而，带肋钢芯上的 FRP 包覆层数和厚度会影响玻璃 FRP (GFRP)-钢混合增强材料的机械性能。在这项研究中，为了提高混合钢筋的延展性，通过使用纤维缠绕法将无碱玻璃纤维以一定角度缠绕在钢筋周围，生产了 27 种混合钢筋。研究了钢筋直径（8、10 和 12 毫米）、钢-FRP 比率和玻璃纤维层数（一层、二层和三层）对混合钢筋拉伸性能的影响。将混合钢筋的实验结果与普通 GFRP 和碳纤维 FRP (CFRP) 钢筋的各自值以及文献中混合钢筋的结果进行了比较。此外，还提出了 GFRP 包裹钢筋的理论应力应变模型。研究表明，增加混合钢筋中的 FRP 比会增加钢筋的延展性，但屈服应力会降低。玻璃包裹带肋钢筋在最大应力下的应变在 4.14% 和 6.22% 之间变化。观察到 GFRP 包裹钢筋的能量吸收能力高于普通 GFRP、CFRP 和其他混合钢筋。此外，发现开发的理论模型与实验结果兼容。