JP2550638Y2 - Beam joint structure of wooden building - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam joint structure of a wooden building, and more particularly to a technique for simplifying a construction method.

[0002]

2. Description of the Related Art For a beam joint structure of a wooden building, there are many techniques conventionally accumulated, and various techniques are used depending on the size and design of the building. FIG. 4 shows a typical example of a conventional beam joint structure.
Are provided with irregularities of a predetermined shape at the joining end of
To form one beam 5.

[0003] The beam 5 is provided on a column of a building. In building, first, blackening is performed on the ground to form an appropriate uneven portion 3 at an end of the beam member 1 or 2. ,
The beam members 1 and 2 are cut and formed along the black line to form the concave and convex portions 3, and the both beam members 1 and 2 are lifted up on the pillars to join the concave and convex portions 3 to complete the intended beam 5.

[0004]

[Problems to be Solved by the Invention] In such a conventional beam joint structure, skill is required in selecting the formation position and shape of the concave and convex portion 3, and therefore, the supervisor of all beam members (such as stubbornness) However, there is a problem that it is necessary to perform inking, and thus the working efficiency is not easily improved. Such difficulties of inking can be attributed to the broad technical knowledge of the design structure to make full use of traditional Japanese techniques,
This is because it is necessary to have on-site experience that comprehensively considers the economic circumstances such as construction costs, and it is generally said that this cannot be learned in a short period of time. For this reason, if the supervisor is not able to go to the site, construction work is stagnated, construction time is delayed, and costs rise.

In the case of forming the uneven portion 3, the dimensions of the beam are adjusted so that a plurality of joints are not concentrated on the joint (so-called joint) between the pillar and the beam. Generally, a structure in which the position of the beam joint is shifted is adopted.
In traditional construction methods in Japan, it has been evaluated over the long term that it is technically superior to use no nails as much as possible.In fact, if many joints are concentrated in one place when nails are not used, structurally Due to its weakness, such techniques have traditionally been handed down to this day. However, according to such a construction method, it is necessary to reduce the dimension of the beam material prepared in advance, so that the structure becomes complicated, which promotes the difficulty of inking, and the beam material consumption of the entire structure increases, As a result, there arises a problem that construction costs increase.

Accordingly, an object of the present invention is to simplify the beam joint structure of a wooden building without impairing the rigidity of the traditional construction method.

In order to achieve the above object and to solve the problems of the prior art, the beam joint structure of the wooden building according to the present invention abuts two right and left beam material ends at the upper end position of the support. A beam joint supporting the abutting portion at the upper end of the column ,
The beam is composed of a lower beam and an upper beam.
The mating ends each have a shelf having a substantially L-shaped cross section, and the lower beam is
To the bottom of the recess with a substantially U-shaped cross-section
Fix the lower surface of the plate and form it at the abutment of the upper beam
The upper surface of the backing plate is fixed to the bottom of the concave
Then, the contact plate is sandwiched between the abutting portions of the upper and lower beams without any gap .

[0008]

According to such a beam joint structure, since the two beam material joints are supported by the upper ends of the columns which are erected at predetermined intervals, there is no need to shorten the beam material, and therefore, the beam material is prepared in advance. The beam can be made using the ready-made beam material as it is.

[0009] At that time, the joint portion is only abutted on both ends of the beam material, erected and fixedly connected with a backing plate.
There is no need for inking by the supervisor, so even relatively inexperienced persons can easily form beams.

[0010] Further, since the beam has a double structure with a backing plate interposed therebetween, even a building requiring high structural strength, such as a three-story building, can be completed using only wood.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 and FIG. 2 show an example of a beam joint structure according to the present invention. As shown in FIG. 1, this beam joint structure comprises two beams 10 and 11 to be joined.
Of the shelf 1 corresponding to the length of the backing plate 12
3 and 14 are formed, and one end face 1 of both beams 10 and 11 is formed.
5 and 16 are abutted on a support (joint), and the abutment portion is supported on the support upper surface. The beam 17 is formed.
Thereafter, the beams 17 are reinforced by placing the beam members 20 and 21 on the upper side. The ends of the beams 20 and 21 are connected to the lower beams 10 and 11 respectively.
Similarly, the shelves 23 and 24 are formed in accordance with the size of the backing plate 12, and are respectively brought into contact with the backing plate 12 so that the upper beam 27 is formed.
To form

The beams 20, 21 and the backing plate 12
Through holes 30 to 33 formed in predetermined positions of
The lower end of the lower beam members 10 and 11 has the holes 34 and 35 fitted with the distal ends of the metal plugs 40, and the upper and lower beams 17 and 27 are integrally fixed with the backing plate 12 interposed therebetween. Constitute one beam 37 as a whole.

The metal plug 40 used here is a metal cylindrical fixing member, which can integrally connect the upper and lower two beams 17 and 27 and resist a tensile load applied to the beams 17 and 27. As long as it is not limited to metal, it may be wood such as oak, resin, ceramic, or the like, and its shape is not limited to a cylinder but may be an appropriate polygonal shape. Of course, the inside may be hollow as long as rigidity can be secured.

FIG. 3 shows another embodiment of the beam joint structure according to the present invention.
And a structure for mounting and fixing the beam 37 on the frame member 60. The frame member 60 is composed of columns 50 and 51.
It has the same dimension as the length dimension, and can be fitted in the space between the two columns 50 and 51. The column has a plurality of support plates 61 to 64 in the vertical direction. A window frame 65 is disposed in the portion, and the window frame 65 is held down by a plurality of support plates 66 and 67 from above and below. This frame material 6
The wall surface is completed by attaching a panel plate to the 0 part. This embodiment shows the second floor of a wooden three-story building, and the lower beam 37a is a beam on the first floor ceiling. still,
Since the configuration of the beam 37 is the same as that of the above-described embodiment, the same reference numerals are given and the duplicated description is omitted. Thus, the frame material 60
By using, the work of attaching the beam 37 is facilitated, the stability of the central portion of the beam 37 is improved, and downward bending can be prevented.

In the above-described embodiment, the shape of the backing plate 12 is described as a rectangle, but the shape is not limited as long as it can contact the beams 10 and 11 to connect them. The material of the backing plate 12 is not limited to wood, but may be metal, resin, or the like. In addition, the backing plate 12 is connected to the beam 1 by a nail.
Although it has been described that it is hit on 0 and 11, it may be fixed by means such as bolts.

On the other hand, although the description has been made on the assumption that each beam is made of wood, in the sense of excluding a wood-like building material made of a special resin or the like, or a wood-like building material obtained by mixing wood powder or the like in a special resin. Absent. That is, in this specification, the terms "wood" and "wooden" can be easily cut by saws and other cutting tools, can be surface-ground like a wood by canners or other cutting tools, and can be nailed or otherwise. It refers to a building material or structure in which members can be fixed to each other by fixing means.

Further, in the above embodiment, the joint surface of the beam material is described as abutting flat surfaces without irregularities.
By forming irregularities that can be abutted on the abutment surface, positioning at the time of the abutment can be made easier and the shear stress can be further increased.

Therefore, according to the beam joint structure, since the two beam joining portions are supported by the upper ends of the columns which are erected at predetermined intervals, it is not necessary to shorten the beam, and the beam is prepared in advance. Since the beam can be made by using the completed beam material as it is, there is no need for the supervisor to perform inking every time, and the work efficiency is greatly improved.

In addition, since the distance between the columns is generally fixed, the dimensions of the beam can be fixed.
Therefore, the mass production of the beam material becomes possible, and the construction cost can be largely reduced as a whole in conjunction with the improvement of the working efficiency. Of course, for each building, there is no need to uselessly shorten the beams, so the number of beams used is reduced and the cost is reduced accordingly.

Further, since the joints of the beam members are merely abutted at the ends of the beam members and erected by connecting a backing plate, even a relatively inexperienced person can easily form the beams, and the building site There is no need to input a large number of skilled workers. Therefore, it is possible to solve the recent problem that the construction period is delayed due to a shortage of labor or the like.

Further, since the beam has a double structure with a backing plate interposed therebetween, it is possible to complete a building using only wood, even in a building requiring high structural strength, such as a three-story building. .

[0022]

According to the present invention, as described above, according to the beam joint structure of the wooden building according to the present invention, the joint of the two beams is supported at the upper end of the support, Since the buckling plate is erected at the end of the beam material and the beam material has a double structure sandwiching the lining plate, the joint structure itself is maintained while maintaining the strength exceeding the structural strength obtained by the traditional building method Be simple. Thus, a wooden building including a three-story building can be completed at low cost and in a short period of time.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a beam joint structure according to the present invention.

FIG. 2 is a perspective view showing a structural example of a beam according to the present invention.

FIG. 3 is a view showing another embodiment of the beam joint structure according to the present invention.

FIG. 4 is a perspective view showing a beam joint structure according to a conventional traditional method.

[Explanation of symbols]

 10, 11, 20, 21, 60 Beam material 12 Backing plate 13, 14, 23, 24 Shelf part 15, 16 End part 17, 27, 37 Beam 30-33 Through hole 40 Metal stopper 50, 51 Post 61-64, 66, 67 Support plate 65 Window frame

Claims (1)

(57) [Scope of request for utility model registration] 1. A beam joint for abutting two left and right beam ends at the upper end of a column and supporting the abutting portion at the upper end of the column.
In the above, the beam material is composed of a lower beam material and an upper beam material, and an abutting end of each beam material is provided with a shelf having a substantially L-shaped cross section.
The bottom of the concave portion having a substantially U-shaped cross section formed at the abutting end of the lower beam member.
While fixing the lower surface of the backing plate to the surface,
The upper surface of the backing plate is formed on the bottom surface of the concave portion having a substantially
A beam joint structure for a wooden building, characterized in that a fixing plate is fixed and a backing plate is sandwiched between the abutting portions of the upper and lower beams without any gap .