In the past, glass fiber-reinforced polymer (GFRP)-reinforcement has been successfully applied in reinforced concrete (RC) structures where corrosion resistance, electromagnetic neutrality, or cuttability were required. Previous investigations suggest that the application of GFRP in RC structures could be advantageous in areas with seismic activity due to their high deformability and strength. However, especially the low modulus of elasticity of GFRP limited its wide application as GFRP-reinforced members usually exhibit considerably larger deformations under service loads than comparable steel-reinforced elements. To overcome the aforementioned issues, the combination of steel and GFRP reinforcement in hybrid RC sections has been investigated in the past. Based on this idea, this paper presents a novel concept for the predetermination of potential plastic hinges in RC frames using GFRP reinforcement. To analyze the efficiency of the concept, nonlinear finite element simulations were performed. The results underscore the high efficiency of hybrid steel-GFRP RC sections for predetermining potential plastic hinges on RC frames. The results also indicate that the overall seismic behavior of RC structures could be improved by means of GFRP as both the column base shear force during the seismic activity as well as the plastic deformations after the earthquake were considerably less pronounced than in the steel-reinforced reference structure.

过去，玻璃纤维增​​强聚合物 (GFRP) 增强材料已成功应用于需要耐腐蚀、电磁中性或可切割性的钢筋混凝土 (RC) 结构中。先前的研究表明，由于 GFRP 具有高变形性和强度，因此在 RC 结构中应用 GFRP 可能在地震活动区域具有优势。然而，特别是 GFRP 的低弹性模量限制了它的广泛应用，因为 GFRP 增强构件在使用载荷下通常表现出比同等钢增强构件大得多的变形。为了克服上述问题，过去已经研究了混合钢筋混凝土截面中钢和 GFRP 钢筋的组合。基于这个想法，本文提出了一种新概念，用于使用 GFRP 加固来预先确定 RC 框架中的潜在塑性铰链。为了分析该概念的效率，进行了非线性有限元模拟。结果强调了混合钢-GFRP RC 截面在预先确定 RC 框架上的潜在塑性铰链方面的高效率。结果还表明，RC 结构的整体抗震性能可以通过 GFRP 得到改善，因为地震活动期间的柱基剪切力以及地震后的塑性变形都远低于钢筋参考中的明显。结构体。结果强调了混合钢-GFRP RC 截面在预先确定 RC 框架上的潜在塑性铰链方面的高效率。结果还表明，RC 结构的整体抗震性能可以通过 GFRP 得到改善，因为地震活动期间的柱基剪切力以及地震后的塑性变形都远低于钢筋参考中的明显。结构体。结果强调了混合钢-GFRP RC 截面在预先确定 RC 框架上的潜在塑性铰链方面的高效率。结果还表明，RC 结构的整体抗震性能可以通过 GFRP 得到改善，因为地震活动期间的柱基剪切力以及地震后的塑性变形都远低于钢筋参考中的明显。结构体。