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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
Pang, Sung-Jun; Lee, Hyeon-Jeong; Yang, Seung Min; Kang, Seog Goo; Oh, Jung-Kwon
Issue Date
2019-12-23
Publisher
Springer Open
Citation
Journal of Wood Science, 65(1):68
Keywords
Moment capacity, Shear capacityPly-lamPlywoodStructural timberCross-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
URI
https://doi.org/10.1186/s10086-019-1847-8

http://hdl.handle.net/10371/164885
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College of Agriculture and Life Sciences (농업생명과학대학)Research Institute of Agriculture and Life Sciences (농업생명과학연구원)Journal Papers (저널논문_농업생명과학연구원)
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