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

Content Provider	Springer Nature Link
Author	Takanashi, Ryuya Sawata, Kei Sasaki, Yoshihisa Koizumi, Akio
Copyright Year	2016
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.
Starting Page	192
Ending Page	198
Page Count	7
File Format	PDF
ISSN	14350211
Journal	Journal of Wood Science
Volume Number	63
Issue Number	2
e-ISSN	16114663
Language	English
Publisher	Springer Japan
Publisher Date	2016-12-02
Publisher Place	Tokyo
Access Restriction	Subscribed
Subject Keyword	Common nail Brown-rot fungus Mass loss Pilodyn Wood Science & Technology Materials Science Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Biomaterials Forestry

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