JPH09111889A - Jointing method for column with groundsill and beam - Google Patents

Abstract

PROBLEM TO BE SOLVED: To joint a column with a groundsill and a beam by simple connection work only, shield a jointing plate inside the materials, and pull both materials to be made in press contact with each other after jointing. SOLUTION: At a jointing part of a column 1 with a ground sill 3 or a beam, a jointing plate 2 is provided to be provided inside these, and a fixing pin is placed on the ground sill side of the jointing plate 2. An eccentric bolt 4 is placed on the column side, and after jointing, the eccentric bolt 4 is rotated to pull both materials to be made in press contact with each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of joining a pillar, a base and a beam in a wooden building.

[0002]

2. Description of the Related Art Conventionally, in the connection of a pillar and a base or a beam of a wooden building, generally, a joint portion of the base has a recessed hole, and a joint portion of the pillar has a hollow hole. After making convex processing, insert each other's joints and fix them,
T-type hardware or L-type hardware is nailed down and tightened.

However, with T type hardware and L type hardware,
Since there is no attractive force, there is a drawback that the pillar and the base are not pressed against each other, and depending on the direction in which the column is pulled out, the effective effect may not be exhibited.

Further, as a tightening method having an attractive force, there are hole down metal fittings, battledore bolts and the like.
These hardware are exposed outside the surface of the pillar, which complicates the fitting in wall construction, heat insulation work, bracing work, etc.
There is a drawback that the number of man-hours for processing the wood portion increases.

[0005]

SUMMARY OF THE INVENTION Therefore, the present invention
A column that eliminates the above-mentioned drawbacks and can join columns and bases / beams only by a simple jointing process, concealing the joining plate inside the material, and making it possible to press and weld both materials after joining. The purpose is to provide a method of joining the base and the beam.

[0006]

In order to achieve the above object, the present invention provides a joint between a column and a base or a beam,
The pillar and the base or the beam are provided with a joining plate interposed inside them, a fixing pin is driven into the base side of the joining plate, an eccentric bolt is driven into the pillar side, and eccentricity is achieved after joining. This is a method of joining columns, bases, and beams, which is characterized by rotating the bolts and pulling and pressing both materials.

[0007]

Next, the operation of the present invention will be described. It is assumed that the joining plate is inserted into the central portion of the cross section of the column, and after the insertion, a drift pin for fixation is driven into one of the end portions and the other end is attached to the other end portion. The eccentric bolt is driven in, the eccentric bolt is rotated after joining, and the column and the base are pressed against each other by the attracting function that has occurred.

Further, the eccentric bolt is not rotated immediately,
By rotating the bolt before applying the fixed load to the roof and constructing the wall surface, it is possible to absorb the dimensional change due to the penetration into the foundation of the pillar, etc.Also, even before rotating the eccentric bolt, the bolt can be Plays the role of temporary fixing of the connection, and the pillars do not come off even if pulling out force is applied before the wall construction, and the safety as a structural frame is secured.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an optimum embodiment of the present invention will be described with reference to the drawings. In a joint portion between a pillar and a base or a beam, a factory is preliminarily provided at a portion where the pillar (1) is in contact with the base (3). A slit (31) for inserting the joining plate (2) and a pin hole (32) are formed in advance, for example. On this occasion,
The edge distance from the base listing of the pin hole (32) and the hole diameter are determined by experiments according to the required strength.

Similarly, slits (11) and bolt holes (12) are also formed in the pillar (1), and the end distance and bolt hole diameter of the bolt holes (12) are also determined according to the required strength. It is assumed to have been obtained by experiments.

The processing position of the slit (11) is a position where the column cross section is equally divided into two rectangles, and the depth of the slit is the length to be inserted into the column portion of the joining plate (2).
The length should be longer than the length of the eccentric bolt (4).

In construction, at the construction site, after the base (3) is installed on the foundation, the joint plate (2) is inserted with the hole (22) facing downward. Inserted in the slit (31) for use, the pin (32) of the base (3) and the hole (22) of the joining plate (2) are aligned with each other, and the drift pin (5) is driven in, whereby the joining plate is formed. (2) and the base (3) are connected.

The thickness of the joining plate (2) is not less than the thickness obtained by experiments according to the required strength, and the eccentric bolt (4) of the joining plate (2) is used.
The driving hole (21) is of an elliptical shape in consideration of the eccentric dimension in order to smoothly rotate the eccentric bolt (4).

In this embodiment, the driving pin hole (32) of the drift pin (5) is shown in one place, but the number of holes may be increased according to the required strength.

Further, the processed portion of the slit (11) of the pillar (1) is fitted into the joining plate (2) attached to the base (3), and the pillar (1) is dropped. As shown in FIG. 5, the eccentric bolt (4) has two stages of thickness, and when it is driven in, the point (41) of the tip of the bolt (4) is lowered to the base (3). ), The pillar (1) and the base (3) are temporarily fixed via the joining plate (2). Also, the eccentric bolt (4)
May have an elliptical cross section as shown in FIG.

Although not shown in the drawing, the same work is carried out in the connection between the pillar (1) and the beam, and even the roof of the building is constructed, and before the wall construction is performed, a wrench or the like is attached to the bolt head (43). By inserting and rotating, an attracting action occurs as shown in FIG. 7, and both materials are attracted and brought into pressure contact with each other.

[0017]

The present invention has the above-mentioned structure. According to the present invention, a joining plate is used to
Pillars, bases, beams, etc. can be processed with a relatively simple joint processing, and the joint strength is increased by joining with the joining plate, and furthermore, the fixed load of the building is applied, the bases, beams, etc. are embedded, If there are gaps or backlash that occur in the joining plate, it can be eliminated by rotating the eccentric bolt, and because the joining plate is hidden inside the pillars and beams, wall construction work However, it has an extremely beneficial effect such as no problem.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a construction method of the present invention.

FIG. 2 is a perspective view showing a state of being joined by the construction method of the present invention.

FIG. 3 is a plan view showing a state of being joined by the construction method of the present invention.

FIG. 4 is a side view showing a state of being joined by the construction method of the present invention.

FIG. 5 is an eccentric bolt used in the present invention, (a)
Is a left side view, (b) is a front view, and (c) is a right side view.

FIG. 6 is another embodiment of the bolt used in the present invention, (a) is a left side view, (b) is a front view and (c) is a right side view.

FIG. 7 is a comparative view showing an attracted state of the eccentric bolt used in the present invention.

FIG. 8 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

 1 Pillar 2 Bonding plate 3 Base 4 Eccentric bolt 5 Drift pin 11 Slit 12 Bolt hole 21 Driving hole 22 Hole 31 Slit 32 Base pin hole 41 Bolt tip 43 Bolt head

Claims (1)

[Claims] 1. A joint plate interposed between the pillar and the base or the beam at the joint between the pillar and the base or the beam, and a fixing pin on the base side of the joint plate. A method of joining a column, a base and a beam, wherein the eccentric bolt is driven into the pillar, the pillar side is driven, and after the joining, the eccentric bolt is rotated to attract and press both materials.