Failure analysis and evaluation for cracked concrete beam reinforced with CFRP

被引：12

作者：

Shang, Wei ^{[1
,2
]}

Ning, Xiaobo ^{[2
]}

Liu, Jinghong ^{[2
]}

Liu, Jinzhao ^{[2
]}

机构：

[1] Tianjin Chengjian Univ, Tianjin Key Lab Civil Struct Protect & Reinforceme, Civil Struct Protect & Reinforcement, Tianjin 300384, Peoples R China

[2] Tianjin Chengjian Univ, Sch Civil Engn, Tianjin 300384, Peoples R China

来源：

THEORETICAL AND APPLIED FRACTURE MECHANICS | 2024年 / 129卷

基金：

中国国家自然科学基金;

关键词：

Carbon fiber reinforced polymer; Concrete beam; Digital image correlation method; Crack; Bond defect; DIGITAL IMAGE CORRELATION; BOND BEHAVIOR; RC BEAMS; FRP; MODEL;

D O I：

10.1016/j.tafmec.2023.104222

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

With the development of material technology, many kinds of fiber materials have been exploited. In all these fiber materials, carbon fiber reinforced plastic (CFRP) is widely used in civil engineering. First, in this paper the reinforcement performance and failure of cracked concrete beam reinforced with CFRP are studied by digital image correlation method. Secondly, a simple method for the evaluation of reinforcement effect for cracked concrete beam reinforced with CFRP is proposed and verified by experimental results. The reinforcement effect for cracked concrete beam reinforced with CFRP can be evaluated in the service process without specimen damage by this method. Finally, the effects of the bond defect of CFRP on reinforcement effect are studied by this evaluation method. This method plays an important role in the safe application of concrete beams reinforced with CFRP.

引用

页数：11

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