JPH10195979A - Brace fitment for wood building for framework method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase a bearing by providing an opening part into which the handle of a column or the handle of a horizontal erection material are inserted and a part fitted in the slit of the butt end of the column, and a bolt hole to fasten a brace made of a steel by a bolt. SOLUTION: An opening part in which a handle is inserted is formed in a part 1 against which a brace strap made of a steel is fastened by means of a bolt. The part 1 and a part 4 fitted in the slit of the butt end of a column are integrally formed. Further, a hole 3 through which a nail is drive in the column is formed in the part 4 and a wedge 2 driven in the bottom part of the slit of the butt end of the column is arranged to form a brace fitment. During execution of a work, the upper end and the lower end of the brace made of a steel are fastened against the brace fitment by means of a bolt and a lower end is engaged with the anchor bolt of a foundation through a turnbuckle. This constitution increases a compression proof stress and a flexural strength.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal fitting for a wooden building constructed by a framing method.

[0002]

2. Description of the Related Art Conventionally, a wooden building constructed by a framing method is opposed to a lateral force of an earthquake by a wooden bar. In this wood bracing, the bracing plate is joined to the pillar and the cross member with nails and screws.

[0003]

According to the conventional wood bracing, when a strong lateral force due to an earthquake acts, the wood bracing that bears the pulling force may lose nails and screws, or the ends of the wood bracing may be damaged. It breaks and comes off the joint. The tree bracing that bears the compressive force was a problem because it could buckle and break and collapse.

[0004]

Means for Solving the Problems To solve the above-mentioned problems, the wood bracing is changed to a steel brace, the upper end of the steel brace is bolted to the brace fitting, and the lower end is also bolted to the brace fitting. Tighten, and the lower end relays the turn pack to directly engage the anchor bolts of the foundation. The steel braces are tensioned by turnpacking to form load-bearing walls. Steel braces are opposed to horizontal forces by tensile force. The tensile force of the steel brace is transmitted to the brace fitting. The tensile force is transmitted from the brace fitting to the connection between the wooden pillar and the wooden beam. The tensile force of the steel brace in the direction of the fiber of the wooden pillar / beam causes a compressive force at the end of the part where the wooden mouth of the wooden pillar / beam engages with the brace fitting. If this compressive force exceeds the compressive strength of the edge of the lip, the edge of the lip is compacted. Simultaneously with this consolidation, an in-plane bending force was generated in the steel plate inserted into the kiguchi. This steel plate bears the compressive force on the tip. The components of the steel brace in the direction perpendicular to the fibers of the wooden pillars / beams against the tensile force are opposed by wedges driven into the wood. The compressive strength in the fiber direction of wood and the compressive strength in the direction perpendicular to the fiber are several times greater than the compressive strength in the fiber direction. The section modulus of steel plate is larger in in-plane bending than in out-of-plane bending. Since the bending strength is proportional to the section modulus, in-plane bending is much larger. The steel plate inserted into the slits of the columns and the horizontal members is in-plane bending. However, in-plane bending of unconstrained steel plates causes buckling. In order to suppress the buckling, a steel plate is inserted into the slits of the column and the horizontal member, so that the slit surface prevents the steel plate from buckling. With such a configuration, a bearing wall having a large bearing capacity can be formed.

[0005]

[Function] By attaching the brace fitting as described above, the connection is not damaged. The steel brace does not come off the connection. Stress can be easily transmitted from steel braces to column / beam connections.

[0006]

Embodiments of the present invention will be described with reference to the drawings. FIGS. 1 to 4 show a brace fitting A, which is used for a steel brace in the longitudinal direction of a handle of a joint, and a slit is provided at the opening of the pillar and attached as shown in FIGS. 5 to 8 show a brace fitting B, which is used for a steel brace perpendicular to the longitudinal direction of the handle of the connection. 17 to 23 show the brace fitting C
The outer wall is a true wall and used as a corner post.

[0007]

Since the present invention is constructed as described above, the required strength is to increase the area where the brace fitting engages with the opening, thereby increasing the compressive strength of the opening. As the length of the steel plate inserted into the slit of the brace bracket increases, the bending strength increases. As the thickness of the steel plate of the braces increases, the bending strength increases. As the cross-sectional area of the steel brace increases, the tensile strength increases. Thus, it is easy to change the required proof stress. In addition, the building can have a large horizontal strength.

[Brief description of the drawings]

FIG. 1 is a front view and a rear view of a brace fitting A. FIG.

FIG. 2 is a view of FIG. 1 as viewed from above.

FIG. 3 is a view of FIG. 1 as viewed from below.

FIG. 4 is a right side view and a left side view of FIG. 1;

FIG. 5 is a front view and a rear view of a brace fitting B.

FIG. 6 is a view of FIG. 5 as viewed from above.

FIG. 7 is a view of FIG. 5 viewed from below.

8 is a right side view and a left side view of FIG.

FIG. 9 is a development view of a brace fitting A.

FIG. 10 is a development view of a brace fitting B;

FIG. 11 is a diagram in which a brace fitting A is attached to a tip of a capital.

FIG. 12 is a right side view and a left side view of FIG.

FIG. 13 is a diagram in which a brace fitting B is attached to a tip of a capital.

FIG. 14 is a right side view and a left side view of FIG.

FIG. 15 is a diagram in which a brace fitting A is attached to a connection of a capital.

FIG. 16 is a diagram in which a brace fitting A is attached to a connection of a column base.

FIG. 17 is a front view of a brace fitting C;

18 is a right side view of FIG.

FIG. 19 is a rear view of FIG. 17;

FIG. 20 is a left side view of FIG. 17;

FIG. 21 is a view of FIG. 17 as viewed from above.

FIG. 22 is a view of FIG. 17 as viewed from below.

FIG. 23 is a development view of a brace fitting C.

[Explanation of symbols]

1 The part where the steel brace blades are bolted together. 2 A wedge for driving into the lower part of the slit at the entrance of the pillar. 3 When entering a beam. Hole for nailing to a pillar. The part that fits into the slit of the 4 post woodcut. 5 Bolt holes for bolting steel braces. 6 Opening for inserting a handle 7 Opening provided for easy bending, which requires angle adjustment when attaching steel braces. 8 A wedge for driving beside the handle. 9 pillars. 10 Horizontal materials. 11 Horizontal material or wooden base. 12 Steel braces. 13 Hagoita. 14 Hole for nailing at Kiguchi. 15 Pillar handle.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI E04B 2/56 651 E04B 2/56 651L 652 652J

Claims (5)

[Claims] 1. A brace fitting having an opening through which a handle of a pillar or a handle of a horizontal member can be inserted, a steel plate fitted into a slit of a wood opening, and a bolt hole for fastening a steel brace with bolts. 2. A brace fitting having a wedge for driving a wood opening at the opening of claim 1. 3. A brace fitting having a wedge for driving a bottom of a slit of a wood opening into a steel plate to be inserted according to claim 1. 4. A brace fitting having nail holes for driving wood into a steel plate to be inserted according to claim 1. 5. A brace fitting having a plurality of bolt holes for fastening the steel brace according to claim 1 with bolts.