Rotational performance of traditional Nuki joints with gap I: Theory and verification

Reference:

Chang, W. S., Hsu, M. F. and Komatsu, K., 2006. Rotational performance of traditional Nuki joints with gap I: Theory and verification. Journal of Wood Science, 52 (1), pp. 58-62.

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Official URL:

http://dx.doi.org/10.1007/s10086-005-0734-7

Abstract

The Nuki joints in Taiwan and Japan are similar in appearance; however, due to lack of wedges used in Nuki joints in Taiwan, the gap between the column and beam increases the complexity of timber joints. In this article, the rotational performance of traditional timber joints is reported. A theoretical model considering Hook's law and Hankinson's formula was developed for predicting the rotational performance of Nuki joints with gaps. A total of 24 specimens was tested and used to verify the rotational performance of timber joints. The proposed model not only predicts the rotational stiffness of Nuki joints, but can also estimate the initial slip of these joints. Good agreement was found between predicted and experimental data.

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