Abstract
In order to estimate the rotational stiffness caused by perpendicular compression at sashigamoi joints, we carried out experiments with some kinds of sashigamoi joints. The main results obtained from these experiments and analytical investigations are as follows.
Under about 3/100 rad. of joint translation angle, slip displacements are caused at joints. Destructive patterns are divided into three groups based on appearing parts of destructions; first, at pillars which sections are under 120mm square, second, at tenons with pillars section of which are over 135mm, and third, at shachi-wedges which used with strong woods such as D. Fir. We estimate the rotational stiffness of sashigamoi joint oweing to experiments and analytical investigations.
