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Abstract
Near-Surface Mounted (NSM) using Fiber-Reinforced Polymer (FRP) bars has been become an effective technique to improve flexural and shear behavior of existing and or new Reinforced Concrete (RC) elements. This is an innovative and emerging technique and much attention has been given by researchers. Thus, this paper attempts to review past and present studies related to the shear strengthening of RC deep beams using NSM-CFRP bar. The past and present research results were obtained through four major databases namely: ASCE, EBSCO, SCOPUS and Science Direct. The careful concern has been taken to review the literature focusing on NSM-CFRP in shear strengthening. The total final set of 56 articles categorized into three main classes. Class 1 comprises on the review studies on the usage of NSM for shear strengthening. Class 2 includes articles related to the structural behavior of RC members’ strength in shear. Class 3 includes articles related to theoretical aspects of the NSM-FRP on shear strength for developing a new approach to calculate shear influences provided by NSM-FRP. In conclusion, this study identifies three basic characteristics of this field: (1) the motivation of using NSM-FRP bars in shear and its applications, (2) open challenges and hindering utilization and (3) the recommendations to improve the acceptance and use of NSM-FRP bars. Keywords: Application, Concrete Fiber-reinforced Polymer, Deep Beam, Near-surface Mounted, Shear Strengthening
Highlights
The durability of the Reinforced Concrete (RC) structures gradually reduces during the age of structure by time
Obtained a total of 56 published papers excluded after the full scan of keywords related to shear strengthening for structural elements by using Near-Surface Mounted (NSM) with CFRP
The results found that the shear contribution on RC beams that provided by NSMFRP strips are externally complex as the strips contribute effectively on shear strength of RC beams
Summary
The durability of the RC structures gradually reduces during the age of structure by time. The usage of FRP attains more attention on account of many attractive properties such as good corrosion resistance, high strength to weight ratio, easy to construct, strengthen RC structures and requires less number of labor as comparing with the other conventional techniques. Whereas; the second method is the embedded through concrete member as shown in Figure 2 and can be done by drilling holes and embedded the FRP bars using epoxy adhesive through the depth of RC beams for improving the shear or flexural strength of RC beams. FRP technique improves the resistance of splitting and the effectiveness of bond material or the FRP bar to the environmental
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