長ほぞ－込栓接合におけるほぞ厚さと込栓打ち込み位置が引き抜き強度に及ぼす影響

概要

論文の詳細を見る
In this study, the pulled out strength of mortise and tenon joint, which is a Japanese traditional timber connection, were investigated, in order to find out an influence that strength by a width of a tenon and a position of a mortice. Specimens had 3 types of a tenon, which had a 30mm, 45mm or 60mm width, and 3 types of position, which was 30mm, 52.5mm, or 75mm depth. As a result of experiments, a komisen-dowel was broken in a mortise of 52.5mm depth type, many tenons were broken by shearing in mortises of 75mm depth, and a type of 30mm depth were frequently split off at a mortise. And then, the stiffness and strength were evaluated by mechanical models. The stiffness was similar to a secant stiffness of 0.7 P<font size="-1">max</font>, and the strength calculated as a yield load was mostly evaluated on a safety side.