JPH0330660B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a joint structure between a column and a beam or a joint part such as a wall in a residential building, a building such as a warehouse, or a simple structure. Used for buildings made of concrete or a combination of these and steel structures.

[Conventional technology]

In the case of wooden structures, a method of combining tenons and tenons and joining them with nails, komisen, etc. has been used for the joint parts of buildings for a long time, but from the viewpoint of reducing cross-sectional defects, flat iron plates are used. There are also methods of joining by bolting using other hardware.

In the case of reinforced concrete structures using precast concrete boards for beams or walls, it is common to attach metal fittings to the joints and connect them by bolting or welding.

In addition, in steel structures, gusset plates and the like are attached, bolted, welded, etc.

[Problem that the invention seeks to solve]

However, all of the above conventional methods require time and labor on site work, and in order to mass produce it, it is necessary to devise ways to minimize the work on site. Furthermore, with conventional structures, it is difficult to expand or remodel by moving beams and walls, and the degree of freedom in design is limited.

For these reasons, the applicant has previously developed a joint structure for the joints between columns and beams in steel-frame structures, which involves interlocking support hardware attached to the columns and wedges.
The aim was to improve the workability of steel-framed buildings and increase the degree of freedom in design (Patent Application No. 71344/1982).

This invention aims to improve the workability of these buildings and increase the degree of freedom in design by applying the above-described joint structure using wedges to wooden or reinforced concrete buildings.

[Means for solving problems]

In the joint part of a building of this invention, a joint member 4 is welded to a metal frame 6 that is fitted to a joint part of a member A to be joined, such as a column, and a joint member B, such as a beam or wall, is welded to the joint member 4. A joining flange 7 attached to the end is engaged and mechanically fixed with a wedge 8.

The target buildings are not limited to concrete or reinforced concrete buildings such as wooden houses, precast concrete structures, and ALC wall structures, but can also be widely used in structures made of various new building materials, and may also be a combination of these.

The joint member 4 has, for example, an anchor-shaped or substantially U-shaped cross section, and has a vertical locking groove 5 on the side surface.
has. A metal frame 6 is fitted over the joint portion of the member A to be joined so as to cover it from above, and the joint member 4 is fixed by welding its base to the surface of the metal frame 6. Note that this welding may be performed either before or after the metal frame 6 is fitted to the member A to be joined.

For example, in a joint between a wooden column and a beam, a plurality of joint members 4 are welded to the corners of the metal frame 6 fitted to the joint of the column as the member to be joined A, and the beam as the joint member B is Both ends of the joint flange 7 at the end of the joint member 4 are connected to the opposing locking grooves 5 of the adjacent joint members 4.
Insert it from above between the two to engage it, and insert a wedge 8 into the gap.
It can be fixed by driving it in. In addition, if there is a possibility that the joining flange 7 may fall off downward with the wedge 8 alone, this can be taken care of by attaching an auxiliary support member to the joint member 4 or the member A to be joined to prevent it from falling off.

The metal frame 6 is formed of a steel plate, stainless steel plate, or other metal plate in accordance with the cross-sectional shape of the member A to be joined such as a column. It is also conceivable to provide in advance a screw hole or the like for fixing to a pillar or the like with a screw or the like, or to form a flange that can temporarily support the joining flange 7 of the joining member B in one piece.

As for the material of the joint member 4, other materials such as cast steel may be used, and since the joint member 4 may be exposed on the internal finished surface, stainless steel, aluminum, ceramic, etc. may also be used.

The joining flange 7 can be a flange part such as an iron plate, a stainless steel plate, etc. directly fixed to the end surface of the non-joined member B with nails or anchor bolts, or a flange part such as an angle or a specially shaped member fixed to the end side of the joining member B. But that's fine. Further, reinforcing ribs or the like may be attached to the joining flange 7 if necessary. In addition,
By attaching the metal frame 6, joint member 4, joining flange 7, etc. in advance at the factory, the on-site work can be as simple as driving in the wedge 8.

The wedge 8 is a taper pin made of iron or stainless steel, and is driven from above the joint member 4 using a hydraulic driving tool or the like to fix the joining member B. In addition, in additions or renovations, the bonded state can be released by pulling it upward using a hydraulic device or pushing it up from below.

〔Example〕

(a) First Embodiment FIGS. 1 to 3 show an embodiment in which the present invention is applied to a joint between a wooden pillar 1 and a beam 2.

A metal frame 6 having approximately the same height as the joint part is fitted to the outer periphery of the joint part of the column that is the member to be joined A, and a metal frame 6 having a height approximately equal to that of the joint part is fitted to each corner of this metal frame 6, that is, a side surface of the metal frame 6. A short joint member 4 having locking grooves with a U-shaped cross section opening in the vertical direction at the top, bottom, left and right ends is welded and attached with the openings facing each other, and the beam 2, which is the joint member B, is attached to the left and right ends of the joint member 4. It has a joint flange 7 on the side, and the joint flange 7, 7 is connected to the joint member 4,
4... is engaged with the locking groove and fixed with a wedge,
A joining member B is attached and fixed to a member A to be joined.

The joint flange 7 is fixed to the end face of the beam 2 with nails 9, and both ends are slightly bent so as to engage with the joint member 4.

In addition, numeral 1 in the figure is an auxiliary support member for preventing the joining flange 7 from falling off, and the metal frame 6
A flange is formed at the lower end.

4 and 5 show an example of the wedge 8, and by forming a head on the wedge 8, it can be used for driving in and pulling out the wedge 8.

Figure 6 shows how the metal frame 6 is attached to the wooden pillar 1.The metal frame 6 is fitted onto the pillar 1 by covering it from above, and then the wooden screw is screwed into the previously formed screw hole 16. can be fixed to.

(b) Second Embodiment FIGS. 7 and 8 show another embodiment in which the present invention is applied to a joint between a wooden pillar 1 and a beam 2.

In this embodiment, a joint member 4' having a locking groove 5 on only one side is mounted facing the surface of a metal frame 6, and a joining flange 7 at the end of the beam 2 is fixed with a wedge 8.

Note that the joint flange 7 has a pair of angles attached to the end side of the beam 2, and a joint bolt 11 passing through the beam 2.
By shifting the end surface of the beam 2 and the surface of the joint flange 7, the joint portion of the column 1 and the end surface of the beam 2 can be brought into close contact.

(c) Third Embodiment Figures 9 and 10 show an example in which the present invention is applied to a joint between a column 1 made of reinforced concrete and a beam 2 made of precast concrete.

In this embodiment, a plurality of joint members 4 are fixed by welding to the corner portions of a metal frame 6 fitted to a joint portion of a reinforced concrete column 1. Beam 2
The joining flange 7 is fixed in advance to the end face of the beam 2 with anchor bolts 12, and at the site, the factory-fabricated beam 2 is suspended from above.
The joint flange 7 is inserted into the locking groove 5 of the joint member 4.
and secure with wedge 8. In addition, pillar 1
The gap between the surface of the joint flange 7 and the joining flange 7 is filled with mortar 14 with a partition plate 13 interposed therebetween as necessary.

(d) Fourth Embodiment FIG. 11 shows another embodiment in which the present invention is applied to a joint between a wooden pillar 1 and a wooden beam 2.

In this embodiment, a shape member having a joint flange 7 protruding at an angle of 45° with respect to the board is used, and this shape member is attached to the side surface of the end of the beam 2 with a joint bolt 1.
1, and the end of the joining flange 7 is joined to the joint member 4 with a wedge 8. Note that for fixing the shape member forming the joint flange 7, it is also possible to use an adhesive in addition to the joint bolt 11, or to increase the frictional force by providing sawtooth-like irregularities on the joint surface.

Further, reference numeral 15 in the figure represents a reinforcing rib in the horizontal direction provided between the base plate of the profile and the joining flange 7, which functions as a flint.

(e) Fifth Embodiment FIG. 12 shows another embodiment of the joint between a column 1 made of reinforced concrete and a beam 2 made of precast concrete.

This embodiment is an application of the above-mentioned fourth embodiment to the case of reinforced concrete construction, in which a section formed with a joint flange 7 protruding at an angle of 45° is fixed to a precast concrete beam 2 with an anchor bolt 12. This is what I did. In this case as well, the end faces of the column 1 as the member to be joined A and the beam 2 as the joining member B can be brought into close contact.

(f) Sixth Embodiment FIG. 13 shows an embodiment in which the present invention is applied to a joint between a column 1 made of reinforced concrete and a wall 3 made of precast concrete.

In this embodiment, a joint member 4' having a substantially U-shaped cross section is welded to a metal frame 6 placed over the outer periphery of a column 1, and a joint flange 7 at an end of a precast concrete wall 3 is inserted into a locking groove of the opposing joint member 4'. are engaged and fixed with wedges 8.

The metal frame 6 and the joining flange 7 may be provided only at a required height, or may be a single member continuous in the vertical direction. Further, a plurality of joint members 4' may be provided in the vertical direction, or may be one continuous long member.

(g) Seventh Embodiment Figure 14 shows an embodiment in which the present invention is applied to a joint between a column 1 made of reinforced concrete and a wall 3 made of precast concrete.

In this embodiment, engagement flanges 7 welded to the ends of beams 2 made of H-shaped steel are fitted in the locking grooves 5 of the plurality of joint members 4 welded to the corners of the metal frame 6.
Both ends of the two are engaged and fixed with wedges 8.

〔Effect of the invention〕

Since the joining of the joint part on site is done mechanically by combining the joint member on the side of the joined member and the joining flange and wedge on the side of the joining member, assembly work is very easy and quick construction is possible. In addition, since the joint parts are short and small, they can be easily attached to the metal frame by welding, and each part can be mass-produced in a factory, making it easy to standardize.Furthermore, it can be freely joined regardless of other parts, making it versatile. It is also rich in sexuality. In addition, by pulling out the wedge, the connected state can be released, moved, or replaced, so there is a great degree of freedom in design for future expansions and renovations.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of the first embodiment, Fig. 2 is a longitudinal sectional view, Fig. 3 is an enlarged view of the main part of Fig. 1, Fig. 4 is a front view of the wedge, Fig. 5 is a plan view, Fig. 6 is a perspective view showing how the metal frame is attached, Fig. 7 is a cross-sectional view of the second embodiment, Fig. 8 is a perspective view, and Fig. 9 is a third embodiment.
A cross-sectional view of the embodiment, FIG. 10 is a perspective view, and FIG. 11 is a perspective view.
12 and 13 are cross-sectional views of the fourth embodiment, the fifth embodiment, and the sixth embodiment, respectively.
FIG. 14 is a perspective view of the seventh embodiment. A... member to be joined, B... member to be joined, 1...
Column, 2...beam, 3...wall, 4...joint member, 5...locking groove, 6...metal frame, 7...joining flange, 8...wedge, 9...nail, 10... Reinforcement support member, 11... Connection bolt, 12... Anchor bolt, 13... Partition plate, 14... Mortar, 15... Reinforcement rib, 16... Screw hole, 17...
...Wood screws.

Claims (1)

[Scope of Claims] 1. A metal frame having approximately the same height as the joining member is fitted to the outer periphery of the joining part of the members to be joined, and a short joint member having a vertical locking groove with a U-shaped cross section is attached to the metal frame. A joint member is welded and attached to the top, bottom, left and right ends of the side surface of the frame so that the openings of the locking grooves that open in the vertical direction face each other, while the joining member has joining flanges on the left and right sides of the end, A joint part of a building, characterized in that the joining flange is engaged with a locking groove of the joint member, and the joining flange and the joint member are fixed by a wedge. 2. The joint part of a building according to claim 1, wherein the members to be joined are wooden columns. 3. The joint part of a building according to claim 1, wherein the members to be joined are concrete columns. 4. The joint part of a building according to any one of claims 1, 2, or 3, wherein the joining member is a wooden beam. 5. The joint part of a building according to claim 1 or 3, wherein the joining member is a beam made of precast concrete. 6 Claim 1 in which the joining member is a steel beam
A joint part of a building described in paragraph 3 or paragraph 3. 7. The joint part of a building according to claim 1 or 3, wherein the joint member is a wall made of precast concrete.