恶劣环境与荷载共同作用下FRP-高强混凝土的粘结耐久性

王苏岩; 姚因杰; 洪雷

doi:10.13409/j.cnki.jdpme.2017.01.018

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恶劣环境与荷载共同作用下FRP-高强混凝土的粘结耐久性

结构工程 | 更新时间：2025-12-11

- 恶劣环境与荷载共同作用下FRP-高强混凝土的粘结耐久性
- Durability of FRP-high Strength Concrete Adhesive Joints under Aggressive Exposure Conditions and Loads
- 防灾减灾工程学报 2017年37卷第1期页码：127-133
- 作者机构：
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目（51378089）资助
- DOI：10.13409/j.cnki.jdpme.2017.01.018
  中图分类号： U528
- 纸质出版：2017
- 稿件说明：
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[1]王苏岩,姚因杰,洪雷.恶劣环境与荷载共同作用下FRP-高强混凝土的粘结耐久性[J].防灾减灾工程学报,2017,37(01):127-133.

王苏岩, 姚因杰, 洪雷. Durability of FRP-high Strength Concrete Adhesive Joints under Aggressive Exposure Conditions and Loads[J]. 2017, 37(1): 127-133.
[1]王苏岩,姚因杰,洪雷.恶劣环境与荷载共同作用下FRP-高强混凝土的粘结耐久性[J].防灾减灾工程学报,2017,37(01):127-133. DOI： 10.13409/j.cnki.jdpme.2017.01.018.

王苏岩, 姚因杰, 洪雷. Durability of FRP-high Strength Concrete Adhesive Joints under Aggressive Exposure Conditions and Loads[J]. 2017, 37(1): 127-133. DOI： 10.13409/j.cnki.jdpme.2017.01.018.

摘要

通过试验

研究并分析了在冻融循环、干湿循环和持续荷载共同作用下

高强混凝土与CFRP（碳纤维增强复合材料）粘结界面的长期性能

为外贴CFRP加固海岸与近海高强混凝土结构的耐久性设计提供依据。通过分析加载剥离过程中的破坏方式、峰值荷载、加载端劣化剥离、有效粘结长度及粘结滑移关系等数据

研究了界面劣化规律。结果表明:由于高强混凝土有较高抗冻性

单纯冻融和干湿循环对界面的劣化作用很小;但是加上持续荷载后

粘结性能的劣化变得非常显著

且主要表现为加载端劣化剥离区域长度的增加。

Abstract

This paper researches and analyzes the long-term performance of high-strength concrete-CFRP（carbon fiber reinforced polymer）interface under the combined impacts of freezethaw cycling

wet-dry cycling and sustained loads

in order to provide a basis for the durability design of coastal and offshore high strength concrete structures reinforced by CFRP.In the test

specimens are set every more 50freeze-thaw cycles and 20wet-dry cycles.The largest number of the freeze-thaw and wet-dry cycling are 300 and 120respectively.Three load levels are imposed:0%

35% and 70% of the initial stripping load of unconditioned control specimens.The trends of the failure mode

peak load

length of debonded area at the load-end

effective bond length and material law of the interface are analyzed.It is found that the degradation of the bond property caused by freeze-thaw and wet-dry cycles is limited

but it turned to be quite significant when sustained load is added.And the main mode of degradation is the increase of the length of debonded area at load-end.

关键词

Keywords

references

纤维增强复合材料加固结构耐久性研究综述 [J]. 岳清瑞,杨勇新. 建筑结构学报 . 2009(06)

高强混凝土的抗冻性与寿命预测模型 [J]. 刘志勇,马立国. 工业建筑 . 2005(01)

FRP加固混凝土结构耐久性试验研究 [D]. 李趁趁. 大连理工大学 2006

FRP布加固试验用持续荷载加载器 [P]. 王苏岩,尹晓明. 中国专利:CN201215544,

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Durability of Bond Interface between CFRP and High Strength Concrete under Wet-Dry Cycling and Sustained Loading [J] . Su Yan Wang,Lu Xi Li,Suo Dong Zhang,Lei Hong. Advanced Materials Research . 2015 (1065)

Analytical modeling of the bond–slip relationship at FRP-concrete interfaces for adhesively-bonded joints [J] . Ying-Wu Zhou,Yu-Fei Wu,Yanchun Yun. Composites Part B . 2010 (6)

Durability of CFRP–concrete joints under freeze–thaw cycling [J] . Yanchun Yun,Yu-Fei Wu. Cold Regions Science and Technology . 2010 (3)

Freeze–thaw degradation of FRP–concrete interface: Impact on cohesive fracture response [J] . Kolluru V. Subramaniam,Mohamad Ali-Ahmad,Michel Ghosn. Engineering Fracture Mechanics . 2008 (13)

Influence of aggressive exposure conditions on the behaviour of adhesive bonded concrete–GFRP joints [J] . P Mukhopadhyaya,R.N Swamy,C.J Lynsdale. Construction and Building Materials . 1998 (8)

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