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Brittle failure of laterally loaded self-tapping screw connections for cross-laminated timber structures [Elektronski vir]Azinović, Boris ...The performance of structural timber connections is of utmost importance since they control the global response of the building. A ductile failure mechanism on the global scale is desirable, ... especially in the design of structures in seismic areas, where dissipative components in which ductile failure modes need to be ensured are considered. Therefore, the knowledge of possible brittle failure modes of connections is crucial. The paper investigates the brittle failures of laterally loaded dowel-type connections in cross-laminated timber subjected to tensile load in a lap joint configuration through experimental investigations and analytical estimations. A set of 13 different test series has been performed with fully threaded self-tapping screws of 8 mm diameter and different lengths (40 to 100 mm) in cross-laminated timber composed of 3 or 5 layers (layer thickness range from 20 to 40 mm), giving rise to the activation of different brittle failure modes at different depths. Plug shear was among the most typically observed failure modes. A previously proposed model for the brittle capacity was applied to the tested connections at the characteristic level. As shown by the performed statistical analysis, the existing model is not reliable and mainly unconservative. A very low performance is observed (CCC = 0.299), but with a good cor- relation (c = 0.750) for the tests in the parallel direction. Further research work is required to improve the current model predictions and to gain a better understanding of the underlying resisting mechanisms.Source: Engineering structures [Elektronski vir]. - ISSN 1873-7323 (Vol. 266, Sep. 2022, str. 1-11)Type of material - e-article ; adult, seriousPublish date - 2022Language - englishCOBISS.SI-ID - 113322755
Author
Azinović, Boris |
Cabrero, José Manuel |
Danielsson, Henrik |
Pazlar, Tomaž
Topics
križno lepljen les |
spoji s paličastimi veznimi sredstvi |
krhke porušitve |
eksperimentalni preskusi |
vijaki |
odprti dostop |
cross-laminated timber |
dowel type fasteners |
connections |
brittle failure |
experimental investigations |
self tapping screws |
open access
Author | Azinović, Boris ... |
Title | Brittle failure of laterally loaded self-tapping screw connections for cross-laminated timber structures [Elektronski vir] |
Publication date | 2022-06-20 |
COBISS.SI-ID | 113322755 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
---|---|---|---|
ForestValue - Innovating forest-based bioeconomy | ForestValue | 773324 |
European Commission |
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Link |
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https://www.sciencedirect.com/science/article/pii/S0141029622006629 |
https://dirros.openscience.si/IzpisGradiva.php?id=15796 |
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Database name | Field | Year |
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Azinović, Boris | 35407 |
Cabrero, José Manuel | |
Danielsson, Henrik | |
Pazlar, Tomaž | 24096 |
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