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Withdrawal strength of nailed joints with decay degradation of wood and nail corrosion

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/68679

Title: Withdrawal strength of nailed joints with decay degradation of wood and nail corrosion
Authors: Takanashi, Ryuya Browse this author
Sawata, Kei Browse this author →KAKEN DB
Sasaki, Yoshihisa Browse this author →KAKEN DB
Koizumi, Akio Browse this author →KAKEN DB
Keywords: Common nail
Brown-rot fungus
Mass loss
Pilodyn
Issue Date: Apr-2017
Publisher: Springer
Journal Title: Journal of wood science
Volume: 63
Issue: 2
Start Page: 192
End Page: 198
Publisher DOI: 10.1007/s10086-016-1600-5
Abstract: Nailed timber joints are widely used in timber structures, and their deterioration may cause significant damage. We investigated the withdrawal strength of joints using steel wire nails in specimens exposed to a brown-rot fungus. We also examined the effects of nail corrosion on withdrawal strength, because high humidity conditions accelerate not only wood decay but also the corrosion of nails. We found that nail corrosion increased the withdrawal strength. The ratios of withdrawal strength of nailed joints with rusted nails to that of joints with a minimally rusted nails were 1.47 and 1.56 in joints nailed in radial and tangential directions to annual rings, respectively. Withdrawal strength, excluding the effects of nail corrosion, had a negative correlation with mass loss and Pilodyn-pin-penetration-depth-ratio. We estimated the withdrawal strength of the nailed joint with decayed wood and rusted nails by multiplying the values from the empirical formula (obtained from mass loss and Pilodyn-pin-penetration-depth-ratio) by 1.47 and 1.56 for joints nailed in radial and tangential direction to annual rings, respectively.
Rights: The final publication is available at Springer via http://dx.doi.org/10.1007/s10086-016-1600-5
Type: article (author version)
URI: http://hdl.handle.net/2115/68679
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 澤田 圭

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