JPH0726437B2 - Beam-to-column connection structure - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to a structure in which an end of a beam is joined to an upper end of a column.

[Prior art]

In a steel-framed house or the like, the beam 5 is connected to the upper end of the column 1 as shown in FIG. That is, the top plate 3 is mounted by bolting on the stigma plate 2 fixed to the upper end surface of the pillar 1, and the receiving piece 4 extending to the top plate 3 is projected to the outside of the pillar 1,
Further, on the lower side of the receiving piece 4, on the side surface of the pillar 1, the receiving metal fitting 11
And attach the end of the beam 5 to the receiving piece 4 of the top plate 3.
Between the lower bracket 12 and the lower bracket 12 of the bracket 11,
And the lower receiving piece 12 are fixed to each other by bolts and nuts and connected.

[Problems to be Solved by the Invention]

However, in this way, the beam 5 is connected to the pillar 1 through the top plate 3.
At the time of joining to the top plate 3, since the load of the beam 5 is applied to the receiving piece 4 provided extending to the top plate 3, the base portion of the receiving piece 4 protruding from the column 1 (shown by an arrow a in FIG. 7). However, there is a problem that deformation such as buckling may occur. That is, the receiving metal fitting 11 is attached to the side surface of the column 1 by bolting a fixing piece 18 at the base thereof, and when the end portion of the beam 5 is connected to the lower receiving piece 12 of the receiving metal fitting 11. The fixing piece 18 is interposed between the pillar 1 and the end surface of the beam 5, and a gap G is generated between the pillar 1 and the end surface of the beam 5, and the base portion of the receiving piece 4 is located at this gap G. Is not supported, the receiving piece 4
At the base of the shaft, deformation such as buckling occurs due to the load of the beam 5. The present invention has been made in view of the above points, and firmly joins a beam to a column without fear that the receiving piece of the top plate will be deformed even if there is a gap between the column and the beam. It is an object of the present invention to provide a joint structure of a beam to a column which can be formed.

[Means for Solving the Problems]

The beam-to-column connection structure according to the present invention is configured such that the stigma plate 2 is attached to the upper end surface of the pillar 1 and the stigma plate 2 is attached to the pillar 1
A projecting piece 2a projecting outward from the side surface of the projecting piece, the top plate 3 is attached to the upper surface of the stigma plate 2, and the receiving piece 4 extending to the top plate 3 is superposed on the upper surface of the projecting piece 2a and the projecting piece 2a is projected to the outer side of the pillar 1 from the tip of the 2a, the overlapping portion of the receiving piece 4 and the protruding piece 2a is bolt-nut coupled, and the receiving metal fitting 12 is provided on the side surface of the pillar 1 below the receiving piece 4 of the top plate 3. It is characterized in that the end portion of the beam 5 is arranged between the receiving piece 4 and the receiving metal fitting 12, and the end portion of the beam 5 is connected to the receiving piece 4 and the receiving metal fitting 12, respectively. .

[Action]

In the present invention, the projecting piece 2a projecting outward from the side surface of the pillar 1 is provided on the stigma plate 2, the top plate 3 is attached to the upper surface of the stigma plate 2, and the top plate 3
The receiving piece 4 extended to the upper side of the projecting piece 2a and projecting outwardly of the pillar 1 beyond the tip of the projecting piece 2a.
Since the overlapping portion of the projecting piece 2a and the projecting piece 2a is bolt-nut coupled, the base part projecting from the column 1 of the receiving piece 4 can be supported and reinforced by the projecting piece 2a of the stigma plate 2, and The beam 5 can be joined to the pillar 1 without causing deformation such as buckling at the base of the portion protruding from the pillar 1.

【Example】

Hereinafter, the present invention will be described in detail with reference to examples. The column 1 is made of steel or the like and has a square cross-section, and a stigma plate 2 is attached to the upper end surface by welding or the like as shown in FIG. The top plate 3 is attached to the upper end of the column 1 by stacking the top plate 3 on the upper surface of the stigma plate 2 and fixing the top plate 3 with bolts 13. A receiving piece 4 is integrally extended on the top plate 3 at a position where the beam 5 is joined to the pillar 1. When the beams 5 are respectively joined to the four surfaces of the column 1, as shown in FIG. 3 (a). A top plate 3 provided with four receiving pieces 4 and a top plate 3 provided with three receiving pieces 4 as shown in FIG. 3B when the beams 5 are respectively joined to the three surfaces of the pillar 1. 3 is used to join the beams 5 to the two surfaces of the pillar 1, the top plate 3 provided with the two receiving pieces 4 as shown in FIG. 3 (c) is used. When the beam 5 is joined only to the surface, the top plate 3 provided with only one receiving piece 4 is used as shown in FIG. 1 (b). A projecting piece 2a is formed so as to extend at the end of the stigma plate 2 at the side corresponding to the receiving piece 4 extending to the top plate 3, and this projecting piece 2a extends outward from the side surface of the column 1. It is projected. The receiving piece 4 extending from the top plate 3 is supported so as to be superposed on the upper surface of the projecting piece 2a, so that the receiving piece 4 projects further outward of the column 1 than the tip of the projecting piece 2a. I am doing it. The portion of the receiving piece 4 overlapping the protruding piece 2a is connected to the protruding piece 2a by a bolt nut 14. Incidentally, in FIGS. 2, 3, 5, 5 and 6, the holes for passing the bolts are indicated by + marks. In addition, the receiving metal fitting 11 is formed by protruding the lower receiving piece 12 from the fixed piece 18 and is formed in a T-shaped cross section. The back plate 15 has a nut (not shown) provided on the inner surface of the pillar 1. And the bolts 13 are screwed from the fixing pieces 18 through the pillars 1 to the nuts of the back plate 15, so that the receiving metal fittings 11 are attached to the pillars 1 at the positions below the receiving pieces 4 of the top plate 3 protruding. It is attached to the outer surface of. When joining the beam 5 to the upper end of the pillar 1 erected at the construction site, the end of the beam 5 formed in a horizontal H-shape in cross section is attached to the lower surface of the receiving piece 4 of the top plate 3 and the receiving metal fitting. It is arranged between the upper side of the lateral lower receiving piece 12 of 11,
On the lower surface of the receiving piece 4 of the upper flange 16 of the beam 5, the lower flange 17
By fixing each of them to the upper surface of the lower receiving piece 12 with bolts and nuts 14, as shown in FIGS. 1 (a), (b) and (c), the beam 5 is pillared via the top plate 3 and the receiving metal fitting 11. It joins to 1. Here, since the fixing piece 18 of the receiving metal fitting 11 is interposed between the pillar 1 and the end surface of the beam 5, a gap G is generated between the pillar 1 and the end surface of the beam 5, but this gap G At the location of, the base protruding from the side surface of the pillar 1 of the receiving piece 4 of the top plate 3 is the protruding piece of the stigma plate 2.
Since it is supported by 2a, the weight of the beam 5 added to the receiving piece 4 is also received by the projecting piece 2a of the stigma plate 2, and the base portion of the receiving piece 4 is reinforced to cause deformation such as buckling. It is possible to prevent this. Also,
Connect the protruding piece 2a of the stigma plate 2 and the receiving piece 4 with bolts and nuts.
Since they are connected by means of 14, the base portion projecting from the side surface of the pillar 1 of the receiving piece 4 can be connected and fixed to the pillar 1 via the stake plate 2, and the receiving piece 4 can be fixed by bolts and nuts.
The interval l between the portion to be connected to the pillar 1 and the portion to be connected to the beam 5 by the bolt nut 14 is shortened, and the rigidity of the connection of the beam 5 to the pillar 1 can be increased. First
Reference numeral 20 in the drawing denotes a receiving plate which is attached by being sandwiched between the upper flange 16 of the beam 5 and the receiving piece 4 and between the lower flange 17 and the lower receiving piece 12, as shown in FIG. 1 (b) (c). In addition, a floor panel, a deck plate, or the like can be placed and supported on a portion of the beam 5 that projects laterally. In the embodiment shown in FIGS. 1 to 3, FIG.
As shown in (b), the top plate 3 is fixed to the stigma plate 2 with the bolts 13. However, in this structure, the heads of the bolts 13 project directly above the pillars 1 and the top plate 3 of the top plate 3 is located directly above the pillars 1. Other members cannot be attached to the upper surface by welding or the like. Therefore, as in the embodiment shown in FIGS. 4 to 6, a means for connecting the base of the receiving piece 4 with the bolt nuts 14 to the location of the projecting piece 2a projecting from the side surface of the column 1 of the stigma plate 2 is used. If the means for fixing the top plate 3 to the upper surface of 2 is used, the head of the bolt does not project directly above the pillar 1, and another member is welded to the upper surface of the top plate 3 directly above the pillar 1. It becomes possible to attach by doing so, and various kinds of joining can be dealt with.
In this embodiment, as shown in FIG.
By providing the projecting pieces 2a on the four edges of each of the four sides, even if the number of the receiving pieces 4 of the top plate 3 changes, a kind of stigma plate 2 can deal with it.

【The invention's effect】

As described above, in the present invention, the projecting piece that projects outward from the side surface of the column is extended to the stigma plate, the top plate is attached to the upper surface of this stigma plate, and the receiving piece extended to the top plate is provided. Since it overlaps with the upper surface of the projecting piece and projects further outward than the tip of the projecting piece, and the overlapping part of the receiving piece and the projecting piece is bolt-nut coupled, the base part projecting from the column of the receiving piece is stigma. Even if there is a gap between the pillar and the beam, it can be supported and reinforced by the protruding piece of the plate, without causing deformation such as buckling at the base of the part of the receiving piece protruding from the pillar. The beam can be firmly joined to the column via the top plate.

[Brief description of drawings]

1 (a) (b) (c) are a front view, a plan view and a side view of an embodiment of the present invention, FIG. 2 is a reduced exploded perspective view of the same, and FIGS. 3 (a) (b). (C) is a reduced plan view of each aspect of the above, FIGS. 4 (a), (b) and (c) are front views, plan views and side views of another embodiment of the present invention, and FIG. A reduced exploded perspective view, FIGS. 6 (a), (b) and (c) are reduced plan views of the above respective aspects, and FIG. 7 is a front view of a conventional example. Reference numeral 1 is a pillar, 2 is a stigma plate, 2a is a protruding piece of the stigma plate, 3 is a top plate, 4 is a receiving piece, 5 is a beam, and 12 is a receiving metal fitting.

Claims (1)

[Claims] 1. A stigma plate is attached to an upper end surface of a pillar, and a projecting piece projecting outward from a side surface of the pillar is extended to the stigma plate, and a top plate is attached to an upper surface of the stigma plate and extended to the top plate. The receiving piece is placed on the upper surface of the projecting piece and is projected further outward than the tip of the projecting piece, and the overlapping part of the receiving piece and the projecting piece is connected with a bolt and nut. A beam for a pillar, characterized in that a receiving metal fitting is attached to a side surface, the end portion of the beam is arranged between the receiving piece and the receiving metal fitting, and the end portion of the beam is connected to the receiving piece and the receiving metal fitting, respectively. Joint structure.