In this study, steel reinforced grout (SRG) is proposed for shear strengthening of reinforced concrete (RC) beams using the near‐surface embedded (NSE) technique. It is believed based on several research contributions in the literature that the NSE technique precludes or delays the onset of premature debonding and achieves higher strength increase in strengthened beams compared to the externally bonded (EB) counterpart. The tests conducted in this study used 13 RC beams to determine the shear behavior of RC beams strengthened in shear using SRG. The effect of the strengthening technique (NSE versus EB), SRG fabric density, strengthening scheme (side‐bonded vs. U‐wrapped), and the strengthening configuration (continuous vs. discontinuous) on RC shear enhancement was studied. The strengthening effectiveness of the SRG system was assessed in terms of the shear capacity, failure mechanism, load‐deflection response, and strain results. The NSE‐SRG increased the beam shear strength by an average of 100%, alleviated SRG debonding, and enhanced the deformation characteristics. The average increase in the shear strength of the EB‐SRG strengthened beam was 54% and 105% for the continuous and discontinuous SRG strips, respectively. An analytical model is proposed to predict the shear capacity of both the NSE‐SRG and EB‐SRG strengthened beams and give accurate and safe predictions.

中文翻译：

---

钢筋混凝土灌浆技术在钢筋混凝土梁抗剪中的应用

在这项研究中，提出了使用近表面埋入（NSE）技术对钢筋混凝土（RC）梁进行剪力加固的钢筋水泥浆（SRG）。基于文献中的一些研究贡献，据信与外部粘结（EB）相比，NSE技术可防止或延迟过早脱胶的发生并在增强梁中实现更高的强度增加。在这项研究中进行的测试使用了13条RC梁来确定使用SRG进行抗剪加固的RC梁的抗剪性能。研究了加固技术（NSE与EB），SRG织物密度，加固方案（侧粘结与U包裹）以及加固配置（连续与不连续）对RC剪切增强的影响。根据剪力，破坏机理，荷载-挠度响应和应变结果评估了SRG系统的加固效果。NSE-SRG使梁的抗剪强度平均提高了100％，减轻了SRG的剥离，并增强了变形特性。连续和不连续的SRG条带的EB‐SRG增强梁的抗剪强度的平均增加分别为54％和105％。提出了一个分析模型来预测NSE-SRG和EB-SRG加固梁的抗剪承载力，并给出准确而安全的预测。连续和不连续的SRG条带的EB‐SRG增强梁的抗剪强度的平均增加分别为54％和105％。提出了一个分析模型来预测NSE-SRG和EB-SRG加固梁的抗剪承载力，并给出准确而安全的预测。连续和不连续的SRG条带的EB‐SRG增强梁的抗剪强度的平均增加分别为54％和105％。提出了一个分析模型来预测NSE-SRG和EB-SRG加固梁的抗剪承载力，并给出准确而安全的预测。