The current study presents the results of an experimental program on the application of carbon-fiber reinforced polymer (CFRP) composites to improve the lateral strength capacity of exterior reinforced concrete (RC) beam-column connections. In such connections, the CFRP composites are bonded onto the top and bottom sides of the beam; however, the presence of the column restricts continuation of FRP composites beyond the end critical sections at the column interface. To provide continuity for composites across the joint, four different anchorage systems have been evaluated through experiments on five half-scale RC connections, comprising an as-built and four retrofitted ones, under reversed cyclic loading. The experimental results demonstrated the superior performance of 180-degree anchor fan among all the tested anchorage systems, leading to a complete plastic hinge relocation along the beam from the column face. Analytical investigation employing a fiber section (FS) modelling approach was also performed and the results validated against the experimental ones. The verified model was then exploited to investigate the effect of FRP composites length along the beam on the structural behavior of RC beam-column connections.

当前的研究提出了关于碳纤维增强聚合物（CFRP）复合材料的应用的实验程序的结果，该复合材料可改善外部钢筋混凝土（RC）梁柱连接的侧向承载能力。在这种连接方式中，CFRP复合材料粘结在梁的顶侧和底侧上。但是，色谱柱的存在限制了FRP复合材料在色谱柱界面处的关键端部以外的连续性。为了使复合材料在整个接缝处具有连续性，通过在反向循环荷载作用下对五个半比例钢筋混凝土连接进行了评估，评估了四种不同的锚固系统，其中包括一个建成的和四个改建的钢筋混凝土。实验结果表明，在所有经过测试的锚固系统中，180度锚风扇均具有出色的性能，导致整个塑料铰链从柱面沿梁重新定位。还进行了使用纤维截面（FS）建模方法的分析研究，并针对实验结果进行了验证。然后利用已验证的模型来研究FRP复合材料沿梁长度对RC梁柱连接结构性能的影响。