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Article: Bond behavior of helically wound FRP bars with different surface characteristics in fiber-reinforced concrete

TitleBond behavior of helically wound FRP bars with different surface characteristics in fiber-reinforced concrete
Authors
Shan, ZhiweiLiang, KunChen, Lijie
KeywordsBond behavior
Fiber reinforced concrete
Helically wound FRP bar
Surface characteristics
Issue Date9-Nov-2023
PublisherElsevier
Citation
Journal of Building Engineering, 2023, v. 65 How to Cite?
DOI: http://dx.doi.org/10.1016/j.jobe.2022.105504
Abstract

Bond behavior of fiber reinforced polymer (FRP) bar in concrete is critical for structural performances. This study investigates the effects of bar type, steel fiber content and surface characteristics on the bond behavior of FRP bars. Pull-out tests of basalt and glass FRP bars with different rib heights (smooth, shallow and deep) were conducted in concretes with various steel fiber contents (0%, 1.0% and 1.5%). Experimental results indicate that bond strength of FRP bars is significantly affected by the height of rib. The bond strength can be significantly increased from less than 2.5 MPa to 30 MPa by increasing rib height from 0 to 0.76 mm. The inclusion of 1.0% steel fibers in volume can prevent the splitting failure. A novel bar geometry-based model for calculating the bond strength of helically wound FRP bars is proposed by combining the experimental data in this study and existing data in literatures.


Persistent Identifierhttp://hdl.handle.net/10722/347207
ISSN
2352-7102
2023 Impact Factor: 6.7
2023 SCImago Journal Rankings: 1.397

 

DC FieldValueLanguage
dc.contributor.authorShan, Zhiwei-
dc.contributor.authorLiang, Kun-
dc.contributor.authorChen, Lijie-
dc.date.accessioned2024-09-20T00:30:36Z-
dc.date.available2024-09-20T00:30:36Z-
dc.date.issued2023-11-09-
dc.identifier.citationJournal of Building Engineering, 2023, v. 65-
dc.identifier.issn2352-7102-
dc.identifier.urihttp://hdl.handle.net/10722/347207-
dc.description.abstract<p>Bond behavior of <a href="https://www.sciencedirect.com/topics/engineering/fibre-reinforced-polymer" title="Learn more about fiber reinforced polymer from ScienceDirect's AI-generated Topic Pages">fiber reinforced polymer</a> (FRP) bar in concrete is critical for structural performances. This study investigates the effects of bar type, steel fiber content and surface characteristics on the bond behavior of FRP bars. Pull-out tests of basalt and glass FRP bars with different rib heights (smooth, shallow and deep) were conducted in concretes with various steel fiber contents (0%, 1.0% and 1.5%). Experimental results indicate that bond strength of FRP bars is significantly affected by the height of rib. The bond strength can be significantly increased from less than 2.5 MPa to 30 MPa by increasing rib height from 0 to 0.76 mm. The inclusion of 1.0% steel fibers in volume can prevent the splitting failure. A novel bar geometry-based model for calculating the bond strength of helically wound FRP bars is proposed by combining the experimental data in this study and existing data in literatures.<br></p>-
dc.languageeng-
dc.publisherElsevier-
dc.relation.ispartofJournal of Building Engineering-
dc.subjectBond behavior-
dc.subjectFiber reinforced concrete-
dc.subjectHelically wound FRP bar-
dc.subjectSurface characteristics-
dc.titleBond behavior of helically wound FRP bars with different surface characteristics in fiber-reinforced concrete-
dc.typeArticle-
dc.identifier.doi10.1016/j.jobe.2022.105504-
dc.identifier.scopuseid_2-s2.0-85145965655-
dc.identifier.volume65-
dc.identifier.eissn2352-7102-
dc.identifier.issnl2352-7102-

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