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Moment and shear capacity of Ply-lam composed with plywood and structural timber under out-of-plane bending
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- Authors
- Issue Date
- 2019-12-23
- Publisher
- Springer Open
- Citation
- Journal of Wood Science, 65(1):68
- Keywords
- Moment capacity, Shear capacity ; Ply-lam ; Plywood ; Structural timber ; Cross-laminated timber
- Abstract
- The aim of this study was to investigate the moment and shear capacity of Ply-lam which is composed with plywood and structural timber. The moment and shear capacity of Ply-lam were predicted by using prediction methodologies for typical cross-laminated timber (CLT). The predicted values by the methodologies were verified by comparison with measured capacities. Fifty-eight specimens of Ply-lam (five layers) were manufactured and half of the specimens were tested for bending (span-to-depth ratio (Rsd) was 25:1). The other specimens were tested for rolling shear (Rsd)) in accordance with EN 16351. The results show that typical prediction methods for structural properties of CLT can also be used to predict those of Ply-lam, since the measured values were higher than the predicted values. In rolling shear test, 52% specimens failed by bending at the bottom layer. This indicates that the rolling shear test method in EN 16351 was not suitable for Ply-lam because the typical CLT would be reinforced by replacing the cross layer with plywood. Thus, the span-to-depth ratio needs to be reduced for hybrid CLT like Ply-lam.
- ISSN
- 1611-4663
- Language
- English
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