Joining metal parts and building structures

Abstract

[Problem] To provide a metal joint and building structure that is very reliable and has excellent stability as a junction and that does not lose yield resistance, initial stiffness, energy absorption capacity or the like in the junction when an excessive load is applied at the junction of a support member and horizontal member. [Solution] A metal joint (1) comprising a stationary plate (4) affixed to a side face of a support member (2), and a coupling plate (5), which is provided protruding from the stationary plate (4) toward the side of a horizontal member (3) and which is connected so as to be inserted into grooves (31) formed across the end face of the horizontal member (3) in the vertical direction, wherein the coupling plate (5) is provided with a plurality of coupling holes (52), into which cylindrical coupling instruments (8) are inserted into the grooves (31) so as to pass through the horizontal member (3), and a first cut portion (54) formed by cutting around the coupling holes (52). The first cut portion (54) is formed to be in an arc-shape centered on the coupling hole (52).

Description

technical field [0001] The present invention relates to a joining metal used when joining a cross member to a support member and a building structure using the joint metal to join the support member and the cross member. Background technique [0002] Conventionally, as a method of joining wooden members such as columns and beams in wooden buildings, joining metal parts of various shapes have been used for the purpose of ensuring efficiency in construction, durability of joint parts, and the like. [0003] Such a joint metal fitting has, for example, a front panel fixed in a state of being in contact with the side surface of the column, and a pair of side panels that are bent at both ends of the front panel and protrude toward the beam side to form a U-shape ("オ " is katakana in Japanese) (for example, refer to Patent Document 1). The joining metal piece is arranged up and down in the front panel to form a plurality of front holes for bolts to pass through. Bolts inserted th...

AI Technical Summary

Problems solved by technology

[0004] However, in the case of using such joint metal parts, if an excessive load is applied to the joint part, the beam will crack before the metal part deforms, and eventually the beam will break to damage the joint part

In addition, since there are individual differences in the strength of wooden members due to factors such as moisture content, when such joint metal parts are used, the fracture of the wooden member becomes a determining factor of the yield point, and the variation in yield strength and the like becomes large.

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