广东工业大学学报 ›› 2020, Vol. 37 ›› Issue (03): 101-105.doi: 10.12052/gdutxb.190111

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FRP筋混凝土锚固长度的试验研究

魏伟, 熊哲   

  1. 广东工业大学 土木与交通工程学院, 广东 广州 510006
  • 收稿日期:2019-09-10 出版日期:2020-05-12 发布日期:2020-05-21
  • 通信作者: 熊哲(1989-),男,讲师,主要研究方向为节能环保材料、复合材料、再生混凝土,E-mail:gdgyxz263@gdut.edu.cn E-mail:gdgyxz263@gdut.edu.cn
  • 作者简介:魏伟(1984-),男,博士研究生,主要研究方向为FRP复合材料、混凝土
  • 基金资助:
    国家自然科学基金资助项目（51708132、11472084）

An Experimental Study of the Anchorage Length of FRP Bars and Concrete

Wei Wei, Xiong Zhe   

  1. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2019-09-10 Online:2020-05-12 Published:2020-05-21

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摘要： 纤维增强复合材料（Fiber-reinforced polymer，FRP）优越的耐腐蚀性可以避免筋材锈蚀引起的混凝土结构劣化。基于此，FRP筋混凝土受到国内外广大研究学者的关注。FRP筋与混凝土的粘结性能和锚固长度是影响FRP筋和混凝土协同工作的主要因素。本文对不同FRP筋混凝土试件进行拉拔试验，分析其损伤机理和粘结强度，推导不同FRP筋的锚固长度计算公式，为工程应用提供理论指导与依据。

关键词: FRP筋, 粘结强度, 拉拔试验, 锚固长度

Abstract: The outstanding corrosion resistance performance of FRP bars can avoid the deterioration of concrete structure which is mainly caused by the bar corrosion. Therefore, concrete reinforced with FRP bars has attracted the attention of researchers at home and abroad. The bond behavior between FRP bars and concrete and the anchorage length of FRP bars are the main parameters which can influence the cooperative work of FRP bars and concrete. In this research, pull-out tests of different FRP bars embedded in concrete specimens are carried out. The damage mechanism and bond strength are analyzed. And the formula to estimate the anchorage length of FRP bars is derived, providing the theoretical guidance and basis for the practical engineering.

Key words: FRP bars, bond strength, pull-out tests, anchorage length

中图分类号: 

  • TU377
[1] WEI W, LIU F, XIONG Z, et al. Bond performance between fibre-reinforced polymer bars and concrete under pull-out tests [J]. Construction and Building Materials, 2019, 227: 116803
[2] 林卫新, 刘洪瑞, 吴冬亮. 南水大桥病害分析及加固实践[J]. 广东工业大学学报, 2008, 25(4): 94-97 LIN W X, LIU H R, WU D L. Disease analysis and reinforcement practice of Nanshui Bridge [J]. Journal of Guangdong University of Technology, 2008, 25(4): 94-97
[3] 禹智涛, 韩大建. 某钢筋混凝土桥梁现有状况评定及维修加固方案[J]. 广东工业大学学报, 2004, 21(1): 83-87 YU Z T, HAN D J. Current conditions evaluation and maintenance plans for a reinforced concrete bridge [J]. Journal of Guangdong University of Technology, 2004, 21(1): 83-87
[4] 惠云玲, 李荣, 林志伸, 全明研. 混凝土基本构件钢筋锈蚀前后性能试验研究[J]. 工业建筑, 1997(6): 15-19, 58 HUI Y L, LI R, LIN Z S, QUAN M Y. Experimental studies on the property before and after corrosion of rebars in basic concrete members [J]. Industrial Construction, 1997(6): 15-19, 58
[5] HASSAN M, BENMOKRANE B, ELSAFTY A, et al. Bond durability of basalt-fiber-reinforced-polymer (BFRP) bars embedded in concrete in aggressive environments [J]. Composites Part B Engineering, 2016, 106: 262-272
[6] BENMOKRANE B, ALI A H, MOHAMED H M, et al. Laboratory assessment and durability performance of vinyl-ester, polyester, and epoxy glass-FRP bars for concrete structures [J]. Composites Part B: Engineering, 2017, 114: 163-174
[7] FIORE V, SCALICI T, DI BELLA G, et al. A review on basalt fibre and its composites [J]. Composites Part B: Engineering, 2015, 74: 74-94
[8] LEE J Y, KIM T Y, KIM T J, et al. Interfacial bond strength of glass fiber reinforced polymer bars in high-strength concrete [J]. Composites Part B: Engineering, 2008, 39(2): 258-270
[9] ACHILLIDES Z, PILAKOUTAS K. Bond behavior of fiber reinforced polymer bars under direct pullout conditions [J]. Journal of Composites for Construction, 2004, 8(2): 173-181
[10] FEI Y, LIN Z, YANG M. Bond mechanism and bond strength of GFRP bars to concrete: A review [J]. Composites Part B Engineering, 2016, 98: 56-69
[11] ACI Committee 440. ACI 440. 1R-06, Guide for the design and construction of concrete reinforced with FRP bars[S]. Farmington Hills, MI, US: ACI Committee 440, 2007.
[12] CHUS H, KWAN A K H. A new method for pull out test of reinforcing bars in plain and fibre reinforced concrete [J]. Engineering Structures, 2018, 164: 82-91
[13] EL REFAI A, ABED F, ALTALMAS A. Bond durability of basalt fiber-reinforced polymer bars embedded in concrete under direct pullout conditions [J]. Journal of Composites for Construction, 2015, 19(5): 04014078
[14] ISLAM S, AFEFY H M, SENNAH K, et al. Bond characteristics of straight- and headed-end, ribbed-surface, GFRP bars embedded in high-strength concrete [J]. Construction and Building Materials, 2015, 83: 283-298
[15] COSENZA E, MANFREDI G, REALFONZO R. Development length of FRP straight rebars [J]. Composites Part B: Engineering, 2002, 33(7): 493-504
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