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A state-of-the-art review: Near-surface mounted FRP composites for reinforced concrete structures

机译：最新技术回顾：用于钢筋混凝土结构的近表面安装FRP复合材料

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摘要

The use of fibre reinforced polymer (FRP) in civil construction applications with near-surface mounted (NSM) method has gained considerable popularity worldwide and can produce confident strengthening and repairing systems for existing concrete structures. The response of concrete structural members rehabilitated using FRP with externally-bonded (EB) method under monotonic and fatigue loading has been well reported. On the other hand, the monotonic and fatigue response of NSM FRP-rehabilitated concrete structures is less known. This paper reviews current research on concrete members retrofitted by NSM FRP system and exposed to monotonic and fatigue loading. It provides an outline of FRP composites and the fatigue behaviour of concrete, steel and FRP materials. In addition, the review focuses on the bond characteristics between NSM FRP, adhesive and concrete substrate, and on the flexure behaviour of NSM FRP-strengthened and repaired reinforced concrete (RC) beams. Furthermore, the paper reviews the failure modes, factors affecting NSM FRP systems, guidelines and codes for the use of FRP in concrete structures, damage accumulation and residual strength, stress limits in steel reinforcement, and the limitations of using epoxy and polymer-based cementitious adhesives for the strengthening of concrete members. (C) 2019 Elsevier Ltd. All rights reserved.
机译：纤维增强聚合物（FRP）在民用建筑中以近表面安装（NSM）方法使用已在全球范围内广受欢迎，并且可以为现有的混凝土结构提供可靠的加强和修补系统。已经充分报道了使用FRP结合外部粘结（EB）方法修复的混凝土结构构件在单调和疲劳荷载下的响应。另一方面，NSM FRP修复的混凝土结构的单调响应和疲劳响应鲜为人知。本文回顾了目前由NSM FRP系统改造并承受单调和疲劳载荷的混凝土构件的研究。它概述了玻璃钢复合材料以及混凝土，钢和玻璃钢材料的疲劳性能。此外，本文的重点是NSM FRP，粘合剂和混凝土基材之间的粘结特性，以及NSM FRP加固和修复的钢筋混凝土（RC）梁的挠曲性能。此外，本文还回顾了破坏模式，影响NSM FRP系统的因素，在混凝土结构中使用FRP的准则和规范，损伤累积和残余强度，钢筋加固中的应力极限以及使用环氧和聚合物基水泥基的局限性用于增强混凝土构件的胶粘剂。 （C）2019 Elsevier Ltd.保留所有权利。

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