Rotational performance of traditional Nuki joints with gap I: theory and verification
Tóm tắt
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.
Tài liệu tham khảo
Kessel MH, Augustin R (1995) Load behavior of connections with oak pegs. J Timber Framers Guild 38:6–9
Parisi MA, Piazza M (2000) Mechanics of plain and retrofitted traditional timber connections. J Struct Eng 126:1395–1403
Sandberg LB, Bulleit WM, Reid EH (2000) Strength and stiffness of oak pegs in traditional timber-frame joints. J Struct Eng 126:717–723
Kawai N (1996) Column rocking resistance in Japanese traditional timber buildings. In: Proceedings of the International Engineering Conference Volume 1, Japan, pp 186–190
Kimura M, Ohashi Y, Fujita K, Sakamoto I (1998) Shaking table test of “Kumimono” of Japanese traditional timber wooden architecture. In: Proceedings of the 10th Japan Earthquake Engineering Symposium, Japan, pp 2475–2480
Fujita K, Sakamoto I, Ohashi Y, Kimura M (2000) Static and dynamic loading tests of bracket complexes used in traditional timber structures in Japan. In: Proceeding of the 12th World Conference on Earthquake Engineering, New Zealand, paper no. 0851
Inayama M (1995) Design of compressive strain resistant connections (Nuki). Kenchiku-Gijutu 547:106–111
Hanazato T, Fujita K, Sakamoto I, Inayama M, Ohkura Y (2004) Analysis of earthquake resistance of five-storied timber pagoda. In: Proceedings of the 13th World Conference on Earthquake Engineering, Vancouver, Canada, paper no. 1223
Miyamoto S, Miyazawa K, Irie Y, Wu J, Nomata Y, Goto O (2004) A study on seismic performance and seismic diagnosis, seismic retrofit of Japanese temple. In: Proceedings of the 13th World Conference on Earthquake Engineering, Vancouver, Canada, paper no. 853
King WS, Yen JYR, Yen YNA (1996) Joint characteristics of traditional Chinese wooden frames. Eng Struct 18:635–644
Chang WS, Hsu MF (2005) Mechanical characteristics of traditional Go-Dou and stepped dovetail timber connections in Taiwan (in Chinese). Taiwan J Forest Sci 20:61–71
Wang SY (1993) Wood physics (in Chinese). In: National Institute of Compilation and Translation, Taipei, pp 524–525