Brittle failure modes on connections with self-tapping screw in Glulam and CLT
conference paper
Self-tapping screws (STS) have become the fastener of chorce for mass timber construction. They are used either as laterally or axially loaded fasteners. In lateral loading, STS connections are generally designed using the European Yield Model, which considers embedment and fastener yielding. Brittle failure modes, influenced by geometnc factors such as end and edge distances and fastener spacing, are checked separately. As part of developing STS design provisions for the Canadian timber design standard, thirty STS connection configurations in glulam timber and cross-laminated timber (CLT) were tested in order to determine their behaviour and failure modes. The results show that STS connections generally tend towards yield failures when recommended fastener arrangements are used. However. connections in CLT are prone to brittle failure modes if fastener spacrngs arrangements are unfavourable. © (2025) WORLD CONFERENCE ON TIMBER ENGINEERING 2025 (WCTE 2025) All rights reserved
TNO Identifier
1016055
ISBN
979-833132089-8
Publisher
World Conference on Timber Engineering (WCTE)
Source title
Proceedings from the 14th World Conference on Timber Engineering: Advancing Timber for the Future Built Environment, WCTE, Brisbane, 22 June 2025 through 26 June 2025
Editor(s)
Rischmiller, K.
Saleem, M.A.
Downey, C.
Gattas, J.
Hossy, D.
Ottenhaus, L.
Wu, W.
Zhang, Y.
Yan, Z.
Saleem, M.A.
Downey, C.
Gattas, J.
Hossy, D.
Ottenhaus, L.
Wu, W.
Zhang, Y.
Yan, Z.
Pages
1510-1518
Files
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