JP2002167868A - Column-base metallic material for wooden building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a durable column-base metallic material which enables base concrete to be directly fixed by applying an anchor bolt and makes a column supported reliably. SOLUTION: Paired tripod plates 3 and 3 with a bent-shape cross section are installed in such a standing manner as to face each other while having an operating gap 8 for a nut 10, whereinto the anchor bolt 11 is screwed, on a base plate 2 formed with an assembling hole 1 whereinto the anchor bolt 11 installed protrusively in the base concrete 13 is inserted. A receiving plate 4, whereon the column 12 is placed for fixation, is installed on the tripod plates 3 and 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column base fitting for a wooden building used for directly fixing a column to a foundation concrete.

[0002]

2. Description of the Related Art A pair of leg plates are erected on a substrate via mounting holes for anchor bolts, and a receiving plate for mounting and fixing a pillar on the leg plates is erected. A structure in which an anchor bolt protruding from a foundation concrete penetrates a mounting hole and a nut is screwed into the bolt to fix a board to the foundation concrete, and a column is placed on a receiving plate and fixed. There are things.

[0003]

In the prior art, a space is formed between the receiving plate and the substrate by supporting the receiving plate with a pair of opposing leg plates, and an assembling hole is formed by utilizing this space. The nut is screwed into the tip of the bolt that has penetrated the bolt, and the nut is tightened.However, since the leg plate is made of a flat plate, it is vulnerable to shaking and is subject to the load of external force due to an earthquake or the like. As a result of a strength test, it was found that the material easily deformed.

The present invention has been made to eliminate the drawbacks of the conventional example and to provide a column base metal which is more earthquake-resistant than the conventional example.

[0005]

Means for Solving the Problems A pair of cross sections are bent on a substrate provided with an assembling hole for inserting an anchor bolt projecting from a foundation concrete, with an operation gap of a nut screwed into the anchor bolt. Erect legboards facing each other,
As a basic means, a receiving plate for mounting and fixing a pillar on the leg plate is provided, and a connecting plate fixed to the pillar by being inserted into a slit provided in the pillar is provided on the receiving plate, The connecting plate has a structure in which a piece is interposed between the leg plates through an elongated hole provided in the receiving plate and is welded to the leg plate so as to further strongly support the column.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a pillar base of a wooden building according to the present invention. FIG.
2 is a partially cutaway front view, and FIG. 3 is a partially cutaway plan view.

The column base metal A of the embodiment has an assembling hole 1 in the center.
A pair of leg plates 3 and 3 are erected on the upper surface of a square substrate 2 provided with
3, a receiving plate 4 is erected, and a part 6a of a connecting plate 6 is passed through an elongated hole 5 provided at the center of the receiving plate 4 so as to be interposed between the leg plates 3, 3 and welded to each other. The connection plate 6 is provided upright at the center of the reference numeral 4.

Each of the pair of leg plates 3 and 3 is formed of a bent plate having an arcuate cross section in which opposing surfaces are swelled in opposing directions, and a center in a direction orthogonal to the opposing direction is closest to the mounting hole 1. It is welded to the substrate 2 so that an operation gap 8 sufficient to engage a tool for screwing the nut 10 to the anchor bolt 11 is formed between the leg plates 3. .

The receiving plate 4 erected on the leg plates 3, 3 has substantially the same cross-sectional shape as the column 12, and is welded to the leg plates 3, 3, and has a long hole 5 provided at the center of the receiving plate 4. The part 6a and the upper part of the leg plate 3 are welded to each other by interposing the part 6a between the leg plates 3 and 3, and the connecting member 6 and the receiving plate 4 are erected on the connecting plate 6 and the receiving plate 4 by welding. The part a does not remain on the receiving plate 4 so that the column 12 and the receiving plate 4 are securely in close contact with each other.

However, since the connecting plate 6 and the leg plate 3 are welded to each other through the receiving plate 4, these three members are more firmly fixed, and the torsion deformation is caused by the cross-sectional bent shape of the leg plate 3. Thus, the pillars can be more firmly supported.

The leg plate 3 has a V-shaped cross section and the like, and need not be limited to the shape of the embodiment.

Thus, the mounting holes 1 are engaged with the anchor bolts 11 protruding from the foundation concrete 13 (so that the anchor bolts 11 pass through the mounting holes 1),
The column base metal A is combined with the anchor bolt 11 at the substrate 2 portion, and the nut 10 is screwed and fastened to the tip of the anchor bolt 11 protruding from the mounting hole 1 (substrate 2). Fixed to Then, the column 12 is placed on the receiving plate 4 such that the connection plate 6 of the metal piece A is engaged with the slit 14 provided at the lower end.
The connection bolt 17 is passed through the through hole provided in the connection hole 2 and the through hole 16 provided in the connection plate 6, and a nut is screwed and fastened to the tip of the bolt 17, so that the column 12 is supported and fixed to the column base hardware A. .

Incidentally, numeral 19 in the figure is a hard rubber, and an anti-vibration effect is expected.

[0014]

The present invention has the configuration described above,
Even if external force is applied in the direction of the leg plate surface, it is not easily deformed due to the cross-sectional bending shape, and it is durable against external force in the torsion direction, so it is directly fixed to the foundation concrete by applying anchor bolts As the pillar base hardware that can be used, a product that is durable and can reliably support the pillar can be provided.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a use state.

FIG. 2 is a partially cutaway front view.

FIG. 3 is a partially cutaway plan view.

[Description of Signs] 1 Assembly hole 2 Board 3 Leg plate 4 Receiving plate 11 Anchor bolt 12 Pillar 13 Foundation concrete

Claims (2)

[Claims] 1. A pair of leg plates having a cross-sectionally bent shape with an operation gap for a nut screwed into the anchor bolt, on a substrate provided with an assembling hole for inserting an anchor bolt protruding from the foundation concrete. A column base metal fitting for a wooden building, which is provided standing upright and has a receiving plate for mounting and fixing a column on the leg plate. 2. A connecting plate, which is inserted into a slit provided on a pillar and fixed to the pillar, is erected on the receiving plate, and the connecting plate is connected to the leg plate through an elongated hole provided on the receiving plate. The column base metal fitting for a wooden building according to claim 1, wherein the column base metal and the leg plate are welded to each other by being interposed.