Push-out behavior of headed stud shear connectors in FRP-UHPC-steel double-skin tubular members (DSTMs).
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| Title: | Push-out behavior of headed stud shear connectors in FRP-UHPC-steel double-skin tubular members (DSTMs). |
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| Authors: | Chen, Dong1 (AUTHOR), Xu, Yuhua2,3 (AUTHOR), Ke, Yan1 (AUTHOR) keyan01@hust.edu.cn, Zhang, Shishun1 (AUTHOR) shishun@hust.edu.cn |
| Source: | Advances in Structural Engineering. May2026, Vol. 29 Issue 7, p1268-1284. 17p. |
| Subjects: | Shear (Mechanics), Structural components, Mathematical models, High strength concrete, Mechanical behavior of materials |
| Abstract: | The FRP-concrete-steel double-skin tubular members (DSTMs) have attracted worldwide research due to their excellent mechanical performance. However, the limitation of these DSTMs lies in the low strength and crack resistance of normal concrete. To further improve their mechanical performance and durability, a solution by replacing the normal concrete in DSTMs with ultra-high performance concrete (UHPC) is proposed. This research focused on the shear behavior of headed stud shear connectors in DSTMs, a crucial component in their overall performance. Through rigorous testing of sixteen push-out specimens, the effects of parameters including the compressive strength of concrete/UHPC, the steel fiber volume ratio in UHPC, and the diameter and layout of headed studs on the interfacial shear behavior of DSTMs were investigated. The test results not only proved that the application of UHPC in DSTMs resulted in a different failure mode and a higher interfacial shear performance, but also revealed that the investigated parameters obviously effected the interfacial shear load-slip responses of DSTM push-out specimens. Subsequently, the shear capacities of push-out specimens predicted by four of the existing theoretical models were compared with the test results. The comparison results indicated that a more accurate model for predicting the interfacial shear capacities of headed stud shear connectors in FRP-UHPC-steel DSTM is needed in future research. [ABSTRACT FROM AUTHOR] |
| Copyright of Advances in Structural Engineering is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 193059593 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Push-out behavior of headed stud shear connectors in FRP-UHPC-steel double-skin tubular members (DSTMs). – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Chen%2C+Dong%22">Chen, Dong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Yuhua%22">Xu, Yuhua</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ke%2C+Yan%22">Ke, Yan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> keyan01@hust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Shishun%22">Zhang, Shishun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> shishun@hust.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Advances+in+Structural+Engineering%22">Advances in Structural Engineering</searchLink>. May2026, Vol. 29 Issue 7, p1268-1284. 17p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Shear+%28Mechanics%29%22">Shear (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+components%22">Structural components</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+models%22">Mathematical models</searchLink><br /><searchLink fieldCode="DE" term="%22High+strength+concrete%22">High strength concrete</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The FRP-concrete-steel double-skin tubular members (DSTMs) have attracted worldwide research due to their excellent mechanical performance. However, the limitation of these DSTMs lies in the low strength and crack resistance of normal concrete. To further improve their mechanical performance and durability, a solution by replacing the normal concrete in DSTMs with ultra-high performance concrete (UHPC) is proposed. This research focused on the shear behavior of headed stud shear connectors in DSTMs, a crucial component in their overall performance. Through rigorous testing of sixteen push-out specimens, the effects of parameters including the compressive strength of concrete/UHPC, the steel fiber volume ratio in UHPC, and the diameter and layout of headed studs on the interfacial shear behavior of DSTMs were investigated. The test results not only proved that the application of UHPC in DSTMs resulted in a different failure mode and a higher interfacial shear performance, but also revealed that the investigated parameters obviously effected the interfacial shear load-slip responses of DSTM push-out specimens. Subsequently, the shear capacities of push-out specimens predicted by four of the existing theoretical models were compared with the test results. The comparison results indicated that a more accurate model for predicting the interfacial shear capacities of headed stud shear connectors in FRP-UHPC-steel DSTM is needed in future research. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Advances in Structural Engineering is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1177/13694332251365969 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 1268 Subjects: – SubjectFull: Shear (Mechanics) Type: general – SubjectFull: Structural components Type: general – SubjectFull: Mathematical models Type: general – SubjectFull: High strength concrete Type: general – SubjectFull: Mechanical behavior of materials Type: general Titles: – TitleFull: Push-out behavior of headed stud shear connectors in FRP-UHPC-steel double-skin tubular members (DSTMs). Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Chen, Dong – PersonEntity: Name: NameFull: Xu, Yuhua – PersonEntity: Name: NameFull: Ke, Yan – PersonEntity: Name: NameFull: Zhang, Shishun IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 13694332 Numbering: – Type: volume Value: 29 – Type: issue Value: 7 Titles: – TitleFull: Advances in Structural Engineering Type: main |
| ResultId | 1 |
