Influence of screw angle and position on the extraction dynamics of Cross-Laminated Timber: an empirical analysis and comparative modeling study
The design of dowel-type fastener connections is crucial for the structural integrity of Cross-Laminated Timber (CLT) systems, with individual fastener anchorage capacity as a key factor. This study investigates the withdrawal performance of Self-Tapping Screws (STSs) in CLT systems using Canadian D...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-01-01
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| Series: | Journal of Asian Architecture and Building Engineering |
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| Online Access: | http://dx.doi.org/10.1080/13467581.2025.2457383 |
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| _version_ | 1832584762534920192 |
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| author | Jia Lei Xinran Li Xinmeng Wang Feibin Wang Shuo Wang Xin An Meng Gong Zeli Que |
| author_facet | Jia Lei Xinran Li Xinmeng Wang Feibin Wang Shuo Wang Xin An Meng Gong Zeli Que |
| author_sort | Jia Lei |
| collection | DOAJ |
| description | The design of dowel-type fastener connections is crucial for the structural integrity of Cross-Laminated Timber (CLT) systems, with individual fastener anchorage capacity as a key factor. This study investigates the withdrawal performance of Self-Tapping Screws (STSs) in CLT systems using Canadian Douglas fir. Four driving angles—45°, 60°, 75°, and 90°—were tested, alongside screw placements within panel gaps. Optimal performance was observed at 75° and 90°, with 90° placement in gaps enhancing stiffness and ductility but reducing energy dissipation. The ratios of experimental capacities to model predictions were 1.26–1.49 for the Blaß and Uibel (B&U) model and 1.36–1.56 for Eurocode 5 (EC5). The new EC5 code, compared to the previous version, includes several advancements such as more accurate material properties and improved calculation methods for fastener withdrawal capacity, offering enhanced prediction accuracy for STS performance in CLT. The discrepancies in the over-strength factors predicted by the new EC5 version ranged from 1.07 to 1.37. These findings suggest the need to consider the incorporation of a specific calculation model for STS withdrawal capacity in CLT, such as the Ringhofer et al. model, in the next revision of EC5. |
| format | Article |
| id | doaj-art-eeea7df38926485d91426d959ff19d98 |
| institution | Kabale University |
| issn | 1347-2852 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Architecture and Building Engineering |
| spelling | doaj-art-eeea7df38926485d91426d959ff19d982025-01-27T11:59:10ZengTaylor & Francis GroupJournal of Asian Architecture and Building Engineering1347-28522025-01-010011310.1080/13467581.2025.24573832457383Influence of screw angle and position on the extraction dynamics of Cross-Laminated Timber: an empirical analysis and comparative modeling studyJia Lei0Xinran Li1Xinmeng Wang2Feibin Wang3Shuo Wang4Xin An5Meng Gong6Zeli Que7Nanjing Forestry UniversityNanjing Forestry UniversityNanjing Forestry UniversityNanjing Forestry UniversityNanjing Forestry UniversityNanjing Forestry UniversityUniversity of New BrunswickNanjing Forestry UniversityThe design of dowel-type fastener connections is crucial for the structural integrity of Cross-Laminated Timber (CLT) systems, with individual fastener anchorage capacity as a key factor. This study investigates the withdrawal performance of Self-Tapping Screws (STSs) in CLT systems using Canadian Douglas fir. Four driving angles—45°, 60°, 75°, and 90°—were tested, alongside screw placements within panel gaps. Optimal performance was observed at 75° and 90°, with 90° placement in gaps enhancing stiffness and ductility but reducing energy dissipation. The ratios of experimental capacities to model predictions were 1.26–1.49 for the Blaß and Uibel (B&U) model and 1.36–1.56 for Eurocode 5 (EC5). The new EC5 code, compared to the previous version, includes several advancements such as more accurate material properties and improved calculation methods for fastener withdrawal capacity, offering enhanced prediction accuracy for STS performance in CLT. The discrepancies in the over-strength factors predicted by the new EC5 version ranged from 1.07 to 1.37. These findings suggest the need to consider the incorporation of a specific calculation model for STS withdrawal capacity in CLT, such as the Ringhofer et al. model, in the next revision of EC5.http://dx.doi.org/10.1080/13467581.2025.2457383driving angleself-tapping screwcross-laminated timberwithdrawal performancemodel correction |
| spellingShingle | Jia Lei Xinran Li Xinmeng Wang Feibin Wang Shuo Wang Xin An Meng Gong Zeli Que Influence of screw angle and position on the extraction dynamics of Cross-Laminated Timber: an empirical analysis and comparative modeling study Journal of Asian Architecture and Building Engineering driving angle self-tapping screw cross-laminated timber withdrawal performance model correction |
| title | Influence of screw angle and position on the extraction dynamics of Cross-Laminated Timber: an empirical analysis and comparative modeling study |
| title_full | Influence of screw angle and position on the extraction dynamics of Cross-Laminated Timber: an empirical analysis and comparative modeling study |
| title_fullStr | Influence of screw angle and position on the extraction dynamics of Cross-Laminated Timber: an empirical analysis and comparative modeling study |
| title_full_unstemmed | Influence of screw angle and position on the extraction dynamics of Cross-Laminated Timber: an empirical analysis and comparative modeling study |
| title_short | Influence of screw angle and position on the extraction dynamics of Cross-Laminated Timber: an empirical analysis and comparative modeling study |
| title_sort | influence of screw angle and position on the extraction dynamics of cross laminated timber an empirical analysis and comparative modeling study |
| topic | driving angle self-tapping screw cross-laminated timber withdrawal performance model correction |
| url | http://dx.doi.org/10.1080/13467581.2025.2457383 |
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