FRP布加固结构粘结界面耐久性的研究进展

摘要/Abstract

摘要： 纤维增强复合材料(FRP)因其质量轻、强度高和抗疲劳性能好等优势受到土木工程师的青睐。用FRP布进行加固的加固效果依赖于FRP与加固结构界面之间的粘结性能,而对于户外混凝土结构和砌体结构,则要保证环境侵蚀下界面的长期粘结性能。国内外学者在冻融循环、干湿循环、酸碱介质等加速老化试验条件下对FRP布加固混凝土结构和FRP布加固砌体结构粘结界面的耐久性进行了大量的试验研究,提出了很多的粘结性能退化模型。本文总结了国内外关于FRP加固混凝土结构和砌体结构粘结界面耐久性的研究现状,并对今后拟开展的研究工作提出了建议。

关键词: FRP布, 混凝土结构, 砌体结构, 粘结界面, 耐久性, 复合材料

Abstract: Fiber reinforced polymer (FRP) is favored by civil engineers because of its advantages of light weight, high strength and good fatigue resistance. The strengthening effect of FRP sheet depends on the bonding performance between FRP and reinforced structure interface. For outdoor concrete structure and masonry structure, the long-term bonding performance of interface under environmental erosion should be guaranteed. Scholars at home and abroad have done a lot of experimental research on the durability of bond interface between FRP reinforced concrete structure and masonry structure under the accelerated aging test conditions of freeze-thaw cycle, dry wet cycle and acid-base medium, etc., and put forward many degradation models of bond performance. This paper summarizes the research status of bond interface durability of FRP reinforced concrete structure and masonry structure at home and abroad, and puts forward suggestions for future research work at the end of the paper.

Key words: FRP sheet, concrete structure, masonry structure, bonding interface, durability, composites

中图分类号:

TB332

王作虎, 申书洋, 杨菊, 邵明哲. FRP布加固结构粘结界面耐久性的研究进展[J]. 复合材料科学与工程, 2020, 0(7): 117-122.

WANG Zuo-hu, SHEN Shu-yang, YANG Ju, SHAO Ming-zhe. RESEARCH PROGRESS ON DURABILITY OF BOND INTERFACE OF FRP SHEET REINFORCED STRUCTURES[J]. Composites Science and Engineering, 2020, 0(7): 117-122.

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