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Home  >  Journal list  >  Journal of the Society of Materials Science, Japan  >  Vol.63  No.4 (2014)  >  pp.303-307

Journal of the Society of Materials Science, Japan
<<Previous article Vol.63  No.4 (2014)   pp.303 - 307 Next article>>

Effects of Lapped Length of Kanawatsugi-Joint on Compressive Properties

Atsushi TABUCHI1), Yoko SHIOTA2)
1) Graduate School of Kyoto Prefectural Univ. 2) Graduate School of Kyoto Prefectural Univ.

This research focused on effects of lapped length of Kanawatsugi-joint (Japanese traditional timber joint for beam to beam) for compressive properties.E-graded Hinoki(E110 and E90) and Sugi(E90) were shaped Kanawatsugi-joints, and each joint had either lapped length of 240, 300 or 360mm.The followings were found from the result of compressive experiments of Kanawatsugi-joints.1)Splitting, embedment and crush of cells were occurred on Mechi (grooved point) and Komisen-dowel, 2)A lapped part was curved in a direction of perpendicular to the loading axis, 3) Compressive strength of H110(E-graded 110 Hinoki) was 80-100% of design strength and that of H90(E-graded 90 Hinoki) and S90(E-graded 90 Sugi) was 60-70% of design strength, 4)Initial stiffness was 40-60% as large as Young's modulous, 5)The longer lapped length Kanawatsugi-joint had, the smaller compressive strength was on the same grade, 6)The distinct properties was not found between initial stiffness and E-grade,7)Initial stiffness was positively correlated with compressive strength.


Keyword:
Lapped length, Compressive strength, Japanese traditional joint, Kanawatusgi, E-grade

Received: August 13, 2013
Published online: April 20, 2014
Copyright © 2014 by The Society of Materials Science, Japan

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