NDLI: Theoretical modeling and experimental study of Japanese “Watari-ago” joints

Content Provider	Springer Nature Link
Author	Ogawa, Keita Sasaki, Yasutoshi Yamasaki, Mariko
Copyright Year	2015
Abstract	Timber joints used in traditional Japanese constructions have no metal plates or fasteners. Because these joints resist external force by embedment to each member, they show high ductility. The ductile joints get much attention recently. Japanese “Watari-ago” joint used in horizontal structure is one such ductile joint. The joint consists of two beams with interlocking notches, which build resistance against in-plane shear forces. In this paper, the mechanical behavior of “Watari-ago” joints is studied experimentally and theoretically. Experimental results show that “Watari-ago” joints can retain resistance after reaching their yield strength and that mechanical behavior varies depending upon notch shape and size. In theoretical research, a predicting model of mechanical behavior of the joint is developed by applying wooden embedment theory. The model proposed in this study also identifies the size that gives optimal mechanical performance. By numerical calculation on the basis of the model, the authors find it quantitatively that the increase of the sizes of beam width and notch depth has greatly effect on the moment resistance.
Starting Page	481
Ending Page	491
Page Count	11
File Format	PDF
ISSN	14350211
Journal	Journal of Wood Science
Volume Number	61
Issue Number	5
e-ISSN	16114663
Language	English
Publisher	Springer Japan
Publisher Date	2015-07-19
Publisher Place	Tokyo
Access Restriction	Subscribed
Subject Keyword	Timber joint Mechanical modeling Moment–deformation angle relationship Wooden embedment Wood Science & Technology Materials Science Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Biomaterials Forestry

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