Experimental investigation of aluminum-timber connections with inclined self-tapping screws
This study presents an innovative H-shaped aluminum-timber composite (ATC) beam with beveled flange platform, designed to enhance the positioning and assembly of inclined self-tapping screws. Through push-out tests on dual shear interfaces across 13 groups, we evaluated the load-displacement behavio...
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| Published in | Advances in structural engineering Vol. 28; no. 12; pp. 2221 - 2236 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
London, England
SAGE Publications
01.09.2025
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1369-4332 2048-4011 |
| DOI | 10.1177/13694332251319098 |
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| Abstract | This study presents an innovative H-shaped aluminum-timber composite (ATC) beam with beveled flange platform, designed to enhance the positioning and assembly of inclined self-tapping screws. Through push-out tests on dual shear interfaces across 13 groups, we evaluated the load-displacement behaviors and failure mechanisms under various screw layouts. Our findings indicate that longer screws increase shear capacity at a slight stiffness reduction. The decline in shear performance for screws with cylindrical sections is attributed to size shrinkage at the shear plane, although this shape enhances stiffness during initial deformation due to tight contact with H-aluminum drilling holes. A group effect analysis shows that triple rows of screws reduce shear capacity by 25.2% versus a single row, highlighting the impact of screw arrangement on structural integrity. Comparisons with Eurocode 5 theoretical calculations confirm the reliability of our results, highlighting the potential of inclined screws in ATC joints. |
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| AbstractList | This study presents an innovative H-shaped aluminum-timber composite (ATC) beam with beveled flange platform, designed to enhance the positioning and assembly of inclined self-tapping screws. Through push-out tests on dual shear interfaces across 13 groups, we evaluated the load-displacement behaviors and failure mechanisms under various screw layouts. Our findings indicate that longer screws increase shear capacity at a slight stiffness reduction. The decline in shear performance for screws with cylindrical sections is attributed to size shrinkage at the shear plane, although this shape enhances stiffness during initial deformation due to tight contact with H-aluminum drilling holes. A group effect analysis shows that triple rows of screws reduce shear capacity by 25.2% versus a single row, highlighting the impact of screw arrangement on structural integrity. Comparisons with Eurocode 5 theoretical calculations confirm the reliability of our results, highlighting the potential of inclined screws in ATC joints. |
| Author | Zhu, Mingliang Hu, Xiangchen Peng, Yifan |
| Author_xml | – sequence: 1 givenname: Yifan surname: Peng fullname: Peng, Yifan organization: Lyles School of Engineering – sequence: 2 givenname: Mingliang orcidid: 0000-0003-2877-7850 surname: Zhu fullname: Zhu, Mingliang email: zhumingliang@seu.edu.cn organization: Lyles School of Engineering – sequence: 3 givenname: Xiangchen surname: Hu fullname: Hu, Xiangchen email: zhumingliang@seu.edu.cn organization: Lyles School of Engineering |
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| Cites_doi | 10.1016/j.jcsr.2019.01.007 10.1016/j.engstruct.2018.05.081 10.1016/j.engstruct.2024.117575 10.1016/j.conbuildmat.2019.07.101 10.1016/j.engstruct.2016.05.056 10.1016/j.istruc.2021.08.111 10.1007/s00107-023-02028-0 10.15376/biores.17.4.6397-6410 10.1016/j.engstruct.2022.114535 10.1007/s00107-022-01797-4 10.1016/j.engstruct.2020.110683 10.1016/j.conbuildmat.2015.12.002 10.1016/j.conbuildmat.2010.12.060 10.1016/j.engstruct.2018.05.032 10.1016/j.conbuildmat.2019.02.114 10.1016/j.conbuildmat.2022.127421 10.1016/j.engstruct.2023.116504 10.1016/j.engstruct.2020.111372 10.1016/j.engstruct.2016.11.062 10.1016/j.enbuild.2018.07.038 |
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