JPH1193271A - Pillar-beam joining structure and building unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pillar-beam joining structure capable of joining a ceiling beam and a floor beam to a pillar without providing a large welding equipment, and a building unit using the pillar-beam joining structure. SOLUTION: An end plate 5 is fitted to an opening end part of a ceiling beam 3, and the end plate 5 is fixed to the opening end part by welding. A bolt through hole 2A is formed in an upper end part of a pillar 2. A bolt through hole 2A is also formed in the surface on the side where the end plate 5 is joined. When the ceiling beam 3 is joined with the upper end part of the pillar 2, a high-tension hexagonal socket bolt 8 is inserted in the bolt through hole 2A, and its screw part is screwed with a screw hole 5C in the end plate 5 and tightened. A structure to join the floor beam with a lower end part of the pillar 2 is approximately similar thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam-column joint structure and a building unit using the beam-joint structure.

[0002]

2. Description of the Related Art In general, a building unit is disclosed in
As described in Japanese Patent Publication No. 1938, a box-shaped rigid frame structure is provided in which pillars are arranged at four corners of a rectangular parallelepiped, a ceiling beam is bridged between upper ends of the pillars, and a floor beam is bridged between lower ends. ing. Such building units are assembled in factories,
According to the request of the building client, the required number of necessary types are transported to the building site. Then, at the building site, a plurality of building units are juxtaposed, and the upper and lower corners of each building unit are connected to each other to construct a unit building.

[0003]

In the above-mentioned conventional technique, when assembling a building unit in a factory, a ceiling beam or a floor beam is joined to an upper end or a lower end of a pillar by welding. However, joining a ceiling beam or a floor beam to a column by welding as described above has a disadvantage that a large-scale welding facility is required.

[0004] An object of the present invention is to provide a beam-column joint structure capable of joining a ceiling beam or a floor beam to a column without providing a large-scale welding facility, and a building unit using the beam-joint structure. That is.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, an end plate having a threaded hole is fixed to an open end of a beam, and a bolt penetrates a column. A hole is formed, and the beam and the column are joined by inserting a joining bolt through the bolt through hole and screwing into the screw hole.

According to a second aspect of the present invention, there is provided a box-shaped rigid-frame building in which pipe-shaped pillars are arranged at four corners, and pipe-shaped beams are bridged between upper and lower ends of these pillars. In the unit, an end plate having a screw hole formed therein is fixed to an open end of the beam, and a bolt through hole is formed at an upper end and a lower end of the column, and a bolt for joining is formed in the bolt through hole. The beam and the column are joined by being inserted into the screw hole and screwed into the screw hole.

According to a third aspect of the present invention, in the second aspect, the bolt is a high-strength hexagon socket head bolt.

According to a fourth aspect of the present invention, in the second aspect, slits along the axial direction are formed at a plurality of positions at an opening end of the beam, and the end plate is fitted to the opening end. Further, the present invention is characterized in that a full circumference welding along the opening end and a slot welding to the slit are performed.

According to a fifth aspect of the present invention, in the second aspect, a hole is formed at a plurality of positions at an opening end of the beam, and the end plate is fitted to the opening end to form the opening end. It is characterized in that full circumference welding along the part and plug welding to the hole are performed.

According to a sixth aspect of the present invention, in the second aspect, a notch is formed at a plurality of locations at an opening end of the beam,
The end plate is fitted to the open end, and full-length welding along the open end and fillet welding to the notch are performed.

[0011]

According to the first aspect of the present invention, the beam is firmly joined to the column by inserting a bolt for joining into the bolt through hole formed in the column and further screwing it into the screw hole of the end plate. be able to.

According to the second aspect, when a ceiling beam or a floor beam is joined to a pillar, a joining bolt is inserted into a bolt through hole formed at an upper end portion and a lower end portion of the pillar, and further, an end plate of the end plate is formed. Screw it into the screw hole and tighten. Thereby, the ceiling beam and the floor beam can be rigidly joined to the pillar, and sufficient strength as a building unit can be obtained.

In order to tighten the bolt, it is preferable that the bolt is a high-strength hexagonal bolt.

In order to fix the end plate to the opening end of the beam, the structure as described in claims 4 to 6 is adopted. With such a configuration, the end plate can be firmly fixed to the opening end.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the building unit 1 has square steel pipe columns 2 disposed at four corners, and a square steel pipe ceiling beam 3 is bridged between the upper ends of these columns 2. A floor beam 4 made of a square steel pipe is bridged between lower end portions of the floor. Since pillar 2, ceiling beam 3 and floor beam 4 are made of square steel pipe,
It has a pipe shape.

As shown in FIG. 2, the unit building is constructed by mounting the building unit 1 vertically and horizontally and the upper and lower corners 1a to 1d of the building unit 1 are joined to each other by bolts.

FIG. 3 is an exploded view of the configuration of the upper corner portion of the building unit 1. Two ceiling beams 3 are joined to the upper end of the column 2. At the open ends of these ceiling beams 3,
Four slits 3A are formed along the axial direction of the ceiling beam 3. An end plate 5 made of cast iron is fitted to the opening end of the ceiling beam 3.

The end plate 5 includes a flat plate portion 5A and a fitting portion 5
B, and the flat plate portion 5A and the fitting portion 5B are integrally formed. Screw holes 5C are formed in the upper and lower portions of the flat plate portion 5A. The flat plate portion 5A and the fitting portion 5B are formed in a rectangular shape according to the cross-sectional shape of the ceiling beam 3, the flat plate portion 5A is sized to match the outer shape of the ceiling beam 3, and the fitting portion 5B is formed inside the ceiling beam 3. Each is formed in such a size as to fit into.

The open end of the ceiling beam 3 (for example, FIG.
The end plate 5 fitted in (A part) is subjected to full circumference welding along the opening end and slot welding to the slit 3A, and is firmly fixed to the opening end. FIG. 4 shows a state in which the end plate 5 is fitted and fixed to the opening end of the ceiling beam 3. In FIG. 4, reference numeral 6 denotes a portion where the entire circumference is welded, and reference numeral 7 denotes a portion where the slot welding is performed.

On the other hand, a bolt through-hole 2A is formed at the upper end of the column 2 as shown in FIG. The bolt through holes 2 </ b> A are formed at two upper and lower locations on the opposite surface to which the ceiling beam 3 is joined. Since two ceiling beams 3 are joined to one pillar 2, four bolt through holes 2 </ b> A are formed at the upper end of the pillar 2.

FIG. 5 is a sectional view showing a state in which the ceiling beam 2 is joined to the upper end of the pillar 2. As shown in FIG. 5, a bolt through hole 2 </ b> B is formed at the upper end of the column 2 also on the surface to which the ceiling beam 3 is joined. The inner diameter of the bolt through hole 2B is smaller than the inner diameter of the bolt through hole 2A. That is, the bolt through-hole 2A is sized to allow the head 8A of the high-strength hexagonal bolt 8 to pass through, but the bolt through-hole 2B does not pass through the head 8A of the high-strength hexagonal bolt 8 and the screw portion 8B. It is formed to the size that only passes.

An end plate 9 is provided at the upper end of the column 2 and a reinforcing plate 10 is provided below the end plate 9 by a predetermined distance.
The positions of the bolt through holes 2A and 2B are the end plate 9 and the reinforcing plate 1.
It is between 0. In addition, a reinforcing backing material 11 is provided between the end plate 9 and the reinforcing plate 10. This reinforcing backing material 11
Has a bolt through hole 11A at a position corresponding to the bolt through hole 2B.

FIG. 6 is an exploded view of the configuration of the lower corner of the building unit 1. As shown in FIG. 6, two floor beams 4 are joined to the lower end of the column 2. Similarly to the ceiling beam 3, slits 4A are formed at four locations along the axial direction also at the opening ends of these floor beams 4. An end plate 12 is fitted to the opening end of the floor beam 4. The end plate 12 includes a flat plate portion 12A and a fitting portion 12B,
Its shape is substantially the same as the end plate 5 described above.

The configuration of the lower end of the column 2 is substantially the same as the configuration of the upper end. That is, as shown in FIG. 6, an end plate 13 is provided at the lower end of the column 2, and a reinforcing plate 14 is provided above the end plate 13 by a predetermined distance. The bolt through hole 2 </ b> C into which the high-strength hexagon socket head bolt 8 is inserted is connected to the end plate 13.
And the reinforcing plate 14.

When assembling the building unit having the above structure, the end plate 5 is attached to the opening end of the ceiling beam 3 in advance.
End plates 12 are fixed to the open ends of the floor beams 4 by welding. When the ceiling beam 3 is joined to the upper end of the column 2, a high-strength hexagon socket head bolt 8 is inserted into the bolt through hole 2 </ b> A from the opposite side of the ceiling beam 3 with the column 2 interposed therebetween. Insert the tip of the screw 8B into the bolt through hole 1.
Through 1A and 2B, screw hole 5C of end plate 5
And tighten it. At this time, since the hexagonal hole is formed in the head 8A of the high-strength hexagonal bolt 8, the bolt 8 is easily tightened by fitting a hexagon wrench as a tightening tool into this hole. be able to. Similarly, the floor beam 4 is joined to the lower end of the column 2.

The end plate 5 is fixed to the opening end of the ceiling beam 3, and the end plate 1 is fixed to the opening end of the floor beam 4.
In order to fix 2 or the like, it may be configured as shown in FIG. 7 or FIG.

In FIG. 7, the ceiling beam 3 (or the floor beam 4) is used.
Are provided at a plurality of positions at the opening end of the hole. Then, the end plate 5 (or the end plate 12) is fitted to the opening end of the ceiling beam 3 (or the floor beam 4), and the entire circumference welding along the opening end and the plug welding to the hole 20 are performed. , Is firmly fixed to the opening end. In the drawing, reference numeral 21 denotes a portion where the entire circumference has been welded, and reference numeral 22 denotes a portion where the plug welding has been performed.

In FIG. 8, square notches 30 are provided at a plurality of positions at the opening end of the ceiling beam 3 (or the floor beam 4). Then, the end plate 5 (or the end plate 12) is fitted to the opening end of the ceiling beam 3 (or the floor beam 4), and the entire circumference is welded along the opening end and the notch 30 is formed.
Is welded to the entire circumference and is firmly fixed to the opening end. In the drawing, reference numeral 31 denotes a place where the entire circumference has been welded, and reference numeral 32 denotes a place where the full circumference fillet welding has been performed.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment.
The present invention includes any design change or the like within a range not departing from the gist of the present invention.

For example, the number of high-strength hexagon socket head bolts 8 for one of the end plates 5 and 12 is not two but three.
It can be more than books. In addition, ceiling beam 3 and floor beam 4
Not the four slits 3A and 4A at the opening end of
The number may be three, three, or five or more.

[0031]

As described above, according to the present invention,
By screwing the joining bolt into the screw hole of the end plate and tightening it, the beam can be firmly joined to the column. As a result, there is no need to provide a large-scale welding facility, and cost reduction can be expected.

When a high-strength hexagon socket head bolt is used as the joining bolt, the beam and the column can be rigidly joined, and the bolt tightening operation becomes easy.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating an example of a building unit.

FIG. 2 is a schematic diagram showing a unit building.

FIG. 3 is an exploded perspective view of the vicinity of an upper corner of a building unit.

FIG. 4 is a perspective view of an open end of a ceiling beam.

FIG. 5 is a cross-sectional view near the upper corner of the building unit.

FIG. 6 is an exploded perspective view of the vicinity of a lower corner of a building unit.

FIG. 7 is a perspective view of another example of an open end of a ceiling beam or a floor beam.

FIG. 8 is a perspective view of still another example of an open end of a ceiling beam or a floor beam.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building unit 2 Column 3 Ceiling beam 4 Floor beam 5, 12 End plate 3A, 4A Slit 8 High-strength hexagon socket head bolt 20 hole 30 Notch

Claims (6)

[Claims] 1. An end plate having a screw hole formed therein is fixed to an open end of a beam, and a bolt through hole is formed in a column. A joining bolt is inserted through the bolt through hole to form the screw. A beam-column joint structure wherein the beam and the column are joined by being screwed into a hole. 2. A building unit having a box-shaped rigid frame structure in which pipe-shaped pillars are arranged at four corners, and pipe-shaped beams are bridged between upper ends and lower ends of the pillars. An end plate having a screw hole formed at an end thereof is fixed, and a bolt through hole is formed at an upper end portion and a lower end portion of the pillar, and a joining bolt is inserted through the bolt through hole to form the screw hole. A building unit, wherein the beam and the column are joined by screwing into the building unit. 3. The building unit according to claim 2, wherein the bolt is a high-strength hexagon socket head bolt. 4. The building unit according to claim 2, wherein slits along the axial direction are formed at a plurality of locations at an opening end of the beam, and the end plate is fitted to the opening end. A building unit, wherein the entire circumference is welded along the opening end and slot welding is performed on the slit. 5. The building unit according to claim 2, wherein a plurality of holes are formed in an opening end of the beam, and the end plate is fitted in the opening end, and is provided in the opening end. A building unit characterized by being subjected to full-circumferential welding along the plug and plug welding to the hole. 6. The building unit according to claim 2, wherein a notch is formed at a plurality of positions at an opening end of the beam, and the end plate is fitted to the opening end, and is formed at the opening end. A building unit characterized by being subjected to full circumference welding along the same and fillet welding to the notch.