Bending Creep Property of Cross-Laminated Woods Made With Six Domestic Species

Byeon, Jin-Woong; Kim, Tae-Ho; Yang, Jae-Kyung; Byeon, ee-Seop; Park, Han-Min

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자료유형: 학술저널

저자정보: Byeon, Jin-Woong (Division of Environmental Forest Science, Institute of Agriculture & Life Science, Gyeongsang National University) Kim, Tae-Ho (Division of Environmental Forest Science, Institute of Agriculture & Life Science, Gyeongsang National University) Yang, Jae-Kyung (Division of Environmental Forest Science, Institute of Agriculture & Life Science, Gyeongsang National University) Byeon, ee-Seop (Division of Environmental Forest Science, Institute of Agriculture & Life Science, Gyeongsang National University) Park, Han-Min (Division of Environmental Forest Science, Institute of Agriculture & Life Science, Gyeongsang National University)

저널정보: 한국목재공학회 목재공학(Journal of the Korean Wood Science and Technology) 목재공학 제45권 제6호

발행연도: 2017.1

수록면: 689 - 702 (14page)

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In this study, with the view to using effectively small and medium diameter Korean domestic woods as structural materials, cross-laminated woods were manufactured by using six species of Korean domestic softwoods and hardwoods, and bending creep properties were investigated for each species. The creep curves showed the shape of the exponential function plot, and the creep curves after 1 hour were able to estimate by fitting it to the power law. The initial and creep compliances of cross-laminated woods showed the higher values in wood species with a low density than in that with a high density. And by cross-laminating, the initial and creep compliances perpendicular to the grain considerably decreased, the extent of the decrease was found to be greater in creep deformation than in initial deformation. The creep anisotropies of cross-laminated woods were considerably decreased by cross-laminating. The relative creep of $C_{\bot}$ type composed of perpendicular-direction lamina in the faces decreased 0.59 - 0.64 times compared to that of $P_{\bot}$ type composed of perpendicular-direction laminae in all layers, and that for $C_{\parallel}$ type composed of parallel-direction laminae in the faces increased 1.5 - 1.6 times compared to that of $P_{\parallel}$ type composed of parallel-direction laminae in all layers.

#species #cross-laminated woods #anisotropy #initial deformation #creep deformation #relative creep

참고문헌 (30)

참고문헌 신청

Aratake, S. / 2002 / Creep of various structural members in ambient conditions Ⅰ. Estimation of future deflections considering the longevity of wooden structures(in Japanese) / Mokuzai Gakkaishi 48:233~240

Arima, T. / 1981 / Studies on evaluation method for long-term performance of wood-based materials and elements (in Japanese)

Bryan, E. L. / 1965 / Strength and rheological properties of particleboard / Forest Products Journal 15:143~148

Fushitani, M. / 1975 / Bending creep of laminated woods (in Japanese) / Wood Industry, Japan 30(5):22~24

Gülzow, A. / 2011 / Influence of wood moisture content on bending and shear stiffness of cross-laminated timber panels / European Journal of Wood and Wood Products 69:193~197

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