JPH1054085A - Joining structure and joint metal of wooden framework - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of joint metals, and to shorten man-hours for installation by joining the lower end of a column in an upper floor and the upper end of a column in a lower floor with a metal fitting connecting a beam and a beam respectively. SOLUTION: The upper horizontal section 5 of a beam joint metal 3 is mounted on the upper end face of a beam 1 from an upper section, the lower horizontal section 18 of a column joint metal 16 is abutted against the underside of the beam 1, and the upper horizontal section 5 and the lower horizontal section 18 are fixed mutually by through-bolts 25. Mounting sections 4a, 4b integrally formed with the upper horizontal section 5 are fastened onto the side faces of the beam 1, and the inserting support sections 7, 7 of the mounting sections 4a, 4b are inserted and fixed into slits 11, 11 at the front ends of other beams 2, 2. A column fixing section 8 set up to the upper horizontal section 5 is put and fastened into a slit 24 at the lower end of a column 22 in an upper floor, and a column fixing section 19 fitted to the lower horizontal section 18 is inserted and fixed into the slit 24 of a column 17 in a lower floor. Accordingly, the joining of the beams 1, 2 and the connection of the columns 22, 17 in the upper and lower floors can be conducted by the few joint metals 3, 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joining structure of a wooden frame used for a joining portion between beams and a joining metal used for the joining structure, and particularly to a joining structure above and below a beam having a winning structure. And a joint structure of the column ends.

[0002]

2. Description of the Related Art In a beam structure having a beam winning structure, an upper end of a lower floor column is joined below a beam, and a lower end of an upper floor column is joined above the beam. Conventionally, as shown in FIG. 3, L-shaped attracting hardware (44), (44)... Are arranged over the columns (41) (42) and the upper surface or lower surface of the beam (43), respectively. Beam (43) and pillar (4
1) Secured with bolts (45) inserted through (42) and hardware (44).

[0003] When an end of another beam (46) is joined to the side surface of the beam (43), joining is performed using a joint metal (47) as shown in the figure.

[0004]

In the above-mentioned conventional structure, in addition to the metal fitting (47) for joining the beam (43) and the beam (46), the column (41) is used.
A special hardware called a drawing hardware (44) for joining the (42) is required.In particular, this drawing metal (44) is provided at each corner of the pillar (41) (42) and the beam (43) as shown in the figure. However, there are disadvantages that the number of hardware increases, the cost increases, and the labor for joining increases.

An object of the present invention is to solve the conventional drawbacks and to reduce the number of hardware used and the time and labor required for mounting a column at the upper and lower sides of a beam. Things.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention comprises a mounting portion abutting on one of the beam side surfaces of a beam-beam joint, and a supporting portion projecting from the mounting portion. In the beam joint hardware, an upper horizontal portion integrally provided at the upper end of the mounting portion is placed on the upper surface of the one beam,
The lower horizontal part of the upper end of the column joint hardware fixed to the upper end of the pillar on the lower floor abuts on the lower surface of the same beam, and is fixed to each other with vertical through bolts penetrating these beams and both horizontal parts. At the same time, an end of the other beam to be joined is fixed to the support portion, and a lower end of a column on the upper floor is fixed to a column fixing portion protruding above the upper horizontal portion. Things.

[0007] In the above, preferably, the column fixing portion of the beam joint metal is a vertical plate inserted into a slit at the lower end of the column, and is joined by a pin or a bolt inserted through the connecting portion from the side of the column. Things are provided.

[0008] Preferably, the column joint metal includes a vertical plate protruding from a lower surface of the lower horizontal portion, and the vertical plate is inserted into a slit at an upper end of the column, and penetrates the vertical plate from a side surface of the column. What is provided is secured by inserted pins or bolts.

According to another aspect of the present invention, there is provided a metal joint for fixing a beam to be fixed to a side surface of one beam of a beam-to-beam joint, and protruding from the beam to fix the other beam. A beam support portion to be mounted, an upper horizontal portion also provided integrally with the upper end of the mounting portion and mounted on the upper surface of the one beam, and a lower end of the upper floor column protruding upward from the upper horizontal portion is fixed. And a lower horizontal portion which is in contact with the lower surface of the beam on which the upper horizontal portion is placed corresponding to the upper horizontal portion, and which has a lower horizontal portion. And a column fixing hardware having a column fixing portion protruding and fixed to the column upper end of the lower floor.

In this case, each of the column fixing portions may be formed of a vertical plate inserted into a slit at the column end.

[0011]

1 and 2 show an embodiment in which beams (2) and (2) are joined to both side surfaces of a beam (1).
(3) is a beam joint hardware of the present invention, (4a) is a vertical mounting portion made of an iron plate having a predetermined thickness,
The upper end of the mounting portion (4a) is bent at a right angle in the horizontal direction to integrally form an upper horizontal portion (5). Further, a tip portion of the upper horizontal portion (5) opposite to the mounting portion (4a) is bent vertically downward to form another second portion.
The first and second mounting portions (4a) and (4b) face each other. On the other hand, at the center of the upper surface of the upper horizontal portion (5), a column fixing portion (8) made of a vertical plate is provided so as to protrude upward.

At the center of the outer surface of each of the mounting portions (4a) and (4b), one vertical insertion support portion for joining the beam (2) is provided.
(7) (7) is extended and fixed, and the upper end of these insertion support portions (7) (7) is provided with a semi-circular bottom having a substantially V shape.
A letter-shaped notch (9) is formed, and a pair of upper and lower pin insertion holes (10) (10) are formed below the notch (9).

[0013] Corresponding to the insertion support portions (7) and (7), the end surfaces of the beams (2) and (2) joined to both side surfaces of the beam (1) are provided with the insertion support portions (7). ) Into which a slit (11) having a thickness and a width are formed, and a bolt hole (12) of this beam (2) formed corresponding to the notch (9) of the insertion support part (7).
(FIG. 2) has bolts (13) inserted and attached in advance. Further, pin insertion holes (15) (15) are formed corresponding to the pin insertion holes (10) (10) of the insertion support portion (7).

(16) is a column joint hardware for joining the lower column (17), and includes a lower horizontal portion (18) abutting on the lower surface of the beam (1) and a lower horizontal portion thereof. It is formed in a T-shape comprising a column fixing portion (19) projecting from the center of the lower surface of (18).

In the above description, a pair of left and right pin insertion holes (20) and (20) are formed at the tip of each of the upper and lower column fixing portions (18) and (19), and the upper and lower horizontal portions (5) and (18) are formed. ) Includes pillar fixing parts (8) (19)
On both sides, a pair of left and right bolt holes (21) (21)
Are formed. On the other hand, the lower end of the upper floor pillar (22) and the lower end of the lower floor pillar (17) have a slit (24) in the center thereof, the slit (24) penetrating therethrough and the pillar fixing part (8). Pin insertion holes (23) and (23) corresponding to the pin insertion holes (20) and (20) of (19) are formed.

The beam joint metal fitting (3) has the upper horizontal portion (5) installed from above on the upper end surface of the beam (1) made of square wood, and the mounting portions (4a) and (4b) are attached to the beam (1). ) Is installed in contact with the side surface. The upper horizontal part (5) is the upper horizontal part (5)
Insert a through bolt (25) from above into each of the plurality of bolts (21) (21).. Formed, and insert the tip of the through bolt (21) through the bolt hole (26) of the beam (1). , Beam (1)
The nut is protruded from the bolt hole (21) of the lower horizontal portion (18) of the column joint hardware (16) abutting on the lower surface, and nuts (27) and (27) are screwed and fastened to both upper and lower ends.

[0017] Then, the column joining hardware (16) is fixed to the column fixing part (19).
Into the slits (24) of the lower floor pillars (17) from above, and drive the drift pins (28) from the outside into the pin insertion holes (20) (23) that match each other to insert the lower floor pillars (17). Fix to.
However, the pillar fixing portion (19) can be previously fixed to the pillar (17) on the lower floor in advance.

On the other hand, the mounting portions (4a) and (4b)
On both sides of (7), screws (30) are inserted into a plurality of mounting holes (29) (29)... Formed in advance in the mounting portions (4a) (4b) and similarly screwed into the side surfaces of the beam (1). Has been fixed by.

As described above, the joining hardware (3) and (16) are connected to the beam.
Slit at the tip of beam (2), which is attached to (1) and beam (1) is joined to pillar (17) on the lower floor in the state where it is joined to this
Insert the insertion support (3) into (11) and
The bolt (13) previously attached to (2) is positioned at a predetermined position by dropping it from above into the notch (9). Thereafter, the drift pins (14) and (14) are inserted into the pin insertion holes (15) and (15) from the side surfaces of the beam (2), and the pin insertion holes (10) and (10) of the insertion support portion (7) are inserted. ) Is penetrated so as to penetrate, and the beam (2) is fixedly attached to the insertion support portion (7).

Further, on the upper surface of the upper horizontal portion (5), a column fixing portion (8) is installed so as to be inserted into a slit (24) formed in a lower end surface of a column (22) on the upper floor. (22) and pillar fixing part (8)
Drift pin (28) to pin insertion hole (23) (20) formed in
And fix the lower end of this upper floor column (22).

The end faces of the pillars (17) and (22) are provided with counterbore holes (31) and (31) for avoiding the end of the through bolt (25) and the nut (27).
... is formed.

In the above mounting structure, the shear load from the beams (2) and (2) is applied to the bolts (13) fixing the beams (2) and (2) and the drift pins (14) and (14). To insertion support (7)
It is conveyed to (7). The shear load transmitted to the insertion support portions (7) (7) is transmitted from the mounting portions (4a) (4b) to the beam (1) via the horizontal portion (5), and further to the lower floor column (17). Is transmitted as a compressive force to For this reason, the screw (19) for fixing the mounting portions (4a) (4b) does not need to support such a shear load, and can be sufficiently supported by such a screw (19).

In the above embodiment, the mounting portion (4a)
Although (4b) is fixed with a general screw (19), it can be fixed with a lag screw or a nail. In addition, the mounting portions (4a) (4b) are provided as a pair of left and right in order to join the beams (2) and (2) to both side surfaces.
One of the mounting portions (4) is used after being deleted.

[0024]

As described above, according to the present invention, the metal fittings for joining the beams are provided with the column fixing portions for joining the lower ends of the columns on the upper floor, so that only one metal fitting is required. In this case, only the metal fittings for joining the metal fittings to the upper ends of the lower floor columns are added, so that the number of metal fittings is reduced, and the effect of reducing the labor required for mounting as compared with the case of mounting a large number of metal fittings is obtained.

In addition, the columns on both the upper and lower sides of the beam are joined by the same through bolt, so that the number of bolts is reduced.
Since the joint structure of the two pillars is the same structure including the slits and the pillar fixing portions inserted into the slits, the joining method on site can be easily understood and simplified. At this time, since the pillar fixing portion is not exposed to the outside of the pillar, the appearance is good, and there is no hindrance to mounting other members.

Further, the upper horizontal portion transmits the shear load transmitted from the beam support portion side to the upper surface of the beam to which the horizontal portion is fixed, so that the supporting strength against the shear load increases.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a joint portion between a beam and a beam and a column showing an embodiment of the present invention.

FIG. 2 is a vertical sectional view of the joint.

FIG. 3 is a perspective view of a conventional joint between a column and a beam.

[Explanation of symbols]

 (1) Beam (2) Beam (3) Beam joint hardware (4a) (4b) Mounting part (5) Upper horizontal part (7) Insert support part (8) Lower horizontal part (11) Slit (20) Upper floor Pillar (16) Pillar joint hardware (17) Lower pillar (18) Lower horizontal part (19) Pillar fixing part (22) Upper pillar (24) Slit (28) Drift pin

Claims (5)

[Claims] An upper part integrally provided on an upper end of the mounting part in a beam joint hardware comprising a mounting part abutting on one of the beam side surfaces of the beam / beam bonding part and a supporting part protruding from the mounting part. A horizontal portion is placed on the upper surface of the one beam, and a lower horizontal portion of an upper end of a column joint hardware fixed to a column upper end of a lower floor is abutted on a lower surface of the same beam to connect these beams and both horizontal portions. It is fixed to each other with vertical through bolts penetrating, the other end of the other beam to be joined is fixed to the support portion, and the column fixing portion projecting upward from the upper horizontal portion is fixed to the upper floor. A joint structure of a wooden frame, wherein a lower end of a pillar is fixed. 2. The column fixing portion of the upper horizontal portion is composed of a vertical plate inserted into a slit at the column lower end, and is joined by a pin or a bolt inserted through the connecting portion from the column side surface. The joint structure for a wooden frame according to claim 1. 3. A pillar joint metal fitting includes a vertical plate protruding from a lower surface of the lower horizontal portion, the vertical plate being inserted into a slit at an upper end of the column, and a pin inserted through the vertical plate from a side surface of the column. 3. The joint structure for a wooden frame according to claim 1, wherein the wooden frame is fixed by bolts. 4. A mounting portion fixed to a side surface of one of the beams of the beam-to-beam joint portion, a beam supporting portion projecting from the mounting portion and fixing the other beam, and also integrally provided at an upper end of the mounting portion. An upper horizontal portion mounted on the upper surface of one of the beams, a beam fixing member protruding above the upper horizontal portion and fixing a column lower end of an upper floor, and the upper horizontal portion A lower horizontal portion that is in contact with the lower surface of the beam on which the upper horizontal portion is placed, and a column fixing portion that projects from the lower surface of the lower horizontal portion and is fixed to the upper end of the lower floor column. A metal joint of a wooden frame, comprising a metal joint having a column. 5. The joint of a wooden frame according to claim 4, wherein each of said column fixing portions comprises a vertical plate inserted into a slit at a column end.