Dowel-type connections with multiple densified bamboo nails

Wen-Shao Chang, Rachel Betts

Research output: Contribution to journalArticle

Abstract

This study investigates use of bamboo as a small diameter fastener within timber connections. A comparison of strength, stiffness, ductility and failure mode was made between hot-pressed bamboo, normal bamboo and metal nails. The application of bamboo nails within multiple fastened timber connections has been assessed through testing two different joint layouts in single shear. The results show that hot-pressed bamboo nail connections could achieve about 65% of ultimate strength of metal nail connections in both layouts. It was also observed that the layouts of the nails have an effect on the mechanical properties of dowel type connections. The results from these tests were applied in the theoretical calculations for the nailed connections. It has shown that the beam on an elastic foundation theory provide acceptable predictions for stiffness and deflection.
Original languageEnglish
JournalJournal of Materials in Civil Engineering
Publication statusAccepted/In press - 2015

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Nails
Bamboo
Timber
Metals
Stiffness
Fasteners
Failure modes
Ductility
Mechanical properties
Testing

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Dowel-type connections with multiple densified bamboo nails. / Chang, Wen-Shao; Betts, Rachel.

In: Journal of Materials in Civil Engineering, 2015.

Research output: Contribution to journalArticle

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abstract = "This study investigates use of bamboo as a small diameter fastener within timber connections. A comparison of strength, stiffness, ductility and failure mode was made between hot-pressed bamboo, normal bamboo and metal nails. The application of bamboo nails within multiple fastened timber connections has been assessed through testing two different joint layouts in single shear. The results show that hot-pressed bamboo nail connections could achieve about 65{\%} of ultimate strength of metal nail connections in both layouts. It was also observed that the layouts of the nails have an effect on the mechanical properties of dowel type connections. The results from these tests were applied in the theoretical calculations for the nailed connections. It has shown that the beam on an elastic foundation theory provide acceptable predictions for stiffness and deflection.",
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