Experimental and Theoretical Research on Low-Strength Concrete Beams Reinforced with Basalt Fibre-Reinforced Plastic Sheets in a Freeze-Thaw Environment
Zeng, Zaiping1,2,3; Wang, Xiuli1,2; Li, Shirong1; Ren, Genli1
2021-05
发表期刊ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
ISSN2193-567X
卷号46期号:5页码:-
摘要Basalt fibre-reinforced plastic sheet (BFRP) enhancement is one of the strengthening methods suitable for concrete structures due to the low price and high tensile strength of BFRPs. It is of great importance to study the mechanical performance of BFRP-reinforced low-strength concrete structures in freeze-thaw environments. Therefore, 15 concrete beam specimens were designed, and a fast freeze-thaw experiment was conducted in this research to consider different parameters, such as the number of freeze-thaw cycles, sequence of freezing-thawing and BFRP pasting and other factors. The mechanical performance of low-strength concrete beams reinforced with BFRPs under freeze-thaw cycles was investigated. The failure mode and load-deflection curves of specimens were also analysed. The test results revealed that the ultimate strength of concrete beams reinforced with BFRPs was greatly improved, with a maximum increase of 32.7%. With increasing number of freeze-thaw cycles, the ultimate strength of beams gradually decreased over the bearing capacity of non-frozen-thawed concrete beams reinforced with BFRPs (F0b), and the bearing capacity of low-strength concrete beams reinforced with BFRPs decreased 17.1% after 50 continuous freeze-thaw cycles, while the beam failure mode changed from bending failure to shear failure accompanied by de-bonding failure. A mechanical model of BFRP-reinforced low-strength concrete beams was constructed under the de-bonding failure mode, and a calculation equation to determine the magnitude of de-bonding failure was proposed. Finally, finite element analysis of specimens was performed with cohesive elements to simulate the nonlinear softening mechanical behaviour of the BFRP-concrete interface.
关键词Basalt fibre-reinforced plastic sheet (BFRP) Freeze– thaw cycle Low-strength concrete beam Reinforcement Failure mode
DOI10.1007/s13369-020-05249-0
收录类别SCOPUS ; SCIE
语种英语
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000618177100004
出版者SPRINGER HEIDELBERG
来源库WOS
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被引频次[WOS]:0   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/147285
专题土木工程学院
通讯作者Zeng, Zaiping
作者单位1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Gansu, Peoples R China;
2.Minist Educ, Western Civil Engn Disaster Prevent & Reduct Engn, Lanzhou 730050, Gansu, Peoples R China;
3.Gansu Vocat Coll Architecture, Lanzhou 730050, Gansu, Peoples R China
第一作者单位兰州理工大学
通讯作者单位兰州理工大学
第一作者的第一单位兰州理工大学
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Zeng, Zaiping,Wang, Xiuli,Li, Shirong,et al. Experimental and Theoretical Research on Low-Strength Concrete Beams Reinforced with Basalt Fibre-Reinforced Plastic Sheets in a Freeze-Thaw Environment[J]. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING,2021,46(5):-.
APA Zeng, Zaiping,Wang, Xiuli,Li, Shirong,&Ren, Genli.(2021).Experimental and Theoretical Research on Low-Strength Concrete Beams Reinforced with Basalt Fibre-Reinforced Plastic Sheets in a Freeze-Thaw Environment.ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING,46(5),-.
MLA Zeng, Zaiping,et al."Experimental and Theoretical Research on Low-Strength Concrete Beams Reinforced with Basalt Fibre-Reinforced Plastic Sheets in a Freeze-Thaw Environment".ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 46.5(2021):-.
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