Fatigue behavior of externally strengthened concrete beams with fiber-reinforced polymers: State of the art
Fatigue behavior of externally strengthened concrete beams with fiber-reinforced polymers: State of the art
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DOI：
10.1061/(asce)1090-0268(2008)12:3(246
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发表时间：
2008-05-01
影响因子：
4.6
通讯作者：
Heffernan, Patrick J.
中科院分区：
文献类型：
--
作者：
Kim, Yail J.;Heffernan, Patrick J.
本文介绍了纤维增强复合材料（FRP）加固钢筋混凝土梁和预应力混凝土梁的最新进展和成果。尽管FRP加固结构在单调荷载作用下的性能已经得到了深入的研究，但迄今为止对疲劳行为的了解相对较少。本文总结了目前可用的大部分文献，包括规范和设计手册，钢筋/预应力混凝土梁外部加固FRP。审查重点特别是疲劳寿命作为一个功能的应用载荷范围，债券行为的外部粘结FRP，损伤积累，裂纹扩展，尺寸效应，剩余强度和故障模式。研究需求，包括设计准则的考虑。
This paper presents the recent progress and achievement in the application of fiber-reinforced polymers (FRP) on strengthening reinforced/prestressed concrete beams subjected to fatigue loading. Although the performance of FRP-strengthened structures under monotonic loading has been intensively investigated, fatigue behavior is relatively less known to date. This paper summarizes most of the currently available literature, including the codes and design manuals, on reinforced/prestressed concrete beams externally strengthened with FRP. The review focuses specifically on the fatigue life as a function of the applied load range, bond behavior of externally bonded FRP, damage accumulation, crack propagation, size effects, residual strength, and failure modes. Research needs including considerations for design guidelines are presented.