JPH0726438B2 - Beam-to-column connection structure - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to a joint structure of a beam to an upper end of a column.

[Prior art]

In a steel-framed house or the like, the beam 7 on the top floor is connected to the upper end of the pillar 1 as shown in FIG. That is, the top plate 5 is attached to the upper end surface of the pillar 1, and the receiving piece 6 extended to the top plate 5 is projected to the side of the pillar 1, and the receiving metal 11 is provided on the side surface of the pillar 1 below the receiving piece 6. Attach the ends of the beams 7 between the receiving piece 6 of the top plate 5 and the lower receiving piece 12 of the receiving metal fitting 11, and fasten them to the receiving piece 6 and the lower receiving piece 12 with bolts and nuts, respectively. It is done by letting it.

[Problems to be Solved by the Invention]

However, in this way, the beam 7 is connected to the pillar 1 via the top plate 5.
At the time of joining, the load of the beam 7 is applied to the receiving piece 6 projecting from the pillar 1 of the top plate 5, so that at the base portion of the portion of the receiving piece 6 projecting from the pillar 1, buckling or the like occurs in the top plate 5. There is a problem that deformation may occur. In particular, since the gap between the end face of the beam 7 and the side face of the pillar 1 is large, and the base of the portion of the receiving piece 6 projecting from the pillar 1 is not supported at this gap, Deformation such as bending is likely to occur. The present invention has been made in view of the above-mentioned points, and even if there is a gap between a column and a beam, the beam can be joined to the column without fear of deformation of the receiving piece of the top plate. It is intended to provide a beam joint structure.

[Means for Solving the Problems]

In the beam-to-column joining structure according to the present invention, a supporting metal piece 2 having an inverted L-shaped cross section is arranged on a side surface of an upper end of the pillar 1 to fix a vertical piece 3 of the supporting metal piece 2 to the pillar 1, The top plate 5 is attached to the upper end surface, and the receiving piece 6 provided on the top plate 5 is superposed on the horizontal piece 4 of the supporting metal piece 2 and is projected to the side of the column 1 beyond the tip of the horizontal piece 4 to form the top plate 5 The receiving metal fitting 11 is attached to the side surface of the pillar 1 below the receiving metal piece 6, and the end portion of the beam 7 is arranged between the receiving metal piece 6 and the receiving metal fitting 11, and the end portion of the beam 7 is received with the receiving metal piece 6. It is characterized by being connected to the metal fittings 11, respectively. Further, in the present invention, it is preferable to provide the reinforcing piece 8 between the outer surface of the vertical piece 3 and the lower surface of the horizontal piece 4 of the supporting metal piece 2. Further, in the present invention, it is preferable that the overlapping portion of the lateral piece 4 of the supporting metal piece 2 and the receiving piece 6 of the top plate 5 be bolt-nut coupled.

[Action]

In the present invention, the receiving piece 6 provided on the top plate 5
Is laid on the horizontal piece 4 of the supporting metal 2 and is projected to the side of the pillar 1 more than the tip of the horizontal piece 4,
The receiving piece 6 can be supported and reinforced by the support hardware 2,
The beam 7 can be joined without deformation of the top plate 5 at the base of the portion of the receiving piece 6 projecting from the pillar 1. Further, by providing the reinforcing piece 8 between the outer surface of the vertical piece 3 of the supporting metal piece 2 and the lower surface of the horizontal piece 4, the reinforcing effect of the top plate 5 by the supporting metal piece 2 can be enhanced. Furthermore, the receiving piece 6 can be fixed to the pillar 1 through the supporting metal piece 2 by connecting the overlapping pieces of the horizontal piece 4 of the supporting metal piece 2 and the receiving piece 6 of the top plate 5 with each other by bolt-nut coupling. The joint rigidity of the beam 7 can be increased.

【Example】

Hereinafter, the present invention will be described in detail with reference to examples. The pillar 1 is made of steel or the like and has a square cross-section, and a stilt head plate 14 provided with a nut 13 on the lower surface as shown in FIG. 3 is welded to the upper end as shown in FIG. 2 (a). It is attached to. As shown in FIG. 4, the supporting metal piece 2 is formed of a vertical piece 3 and a horizontal piece 4 in an inverted L-shaped cross section, and a reinforcing piece 8 is vertically provided between the outer surface of the vertical piece 3 and the lower surface of the horizontal piece 4. It is provided in. One reinforcing piece 8 may be provided as shown in FIG. 4, or a plurality of reinforcing pieces 8 may be provided as shown in FIG. The support metal 2 is attached to the side surface of the upper end of the pillar 1 at the place where the beam 7 is connected, as shown in FIG. 2 (b). On the inside surface of the pillar 1,
A back plate 15 provided with nuts 16 as shown in FIG. 6 is arranged, and a bolt is screwed from the vertical piece 3 of the supporting metal piece 2 through the pillar 1 to the nut 16 of the back plate 15 so that the vertical piece Pillar 3 to 1
The support metal 2 is fixed to the base plate 2 and attached. Further, the receiving metal fitting 11 is formed in a horizontal T-shape in vertical section, and the back plate 15 is passed through the pillar 1 from the fixing piece 18 at the base thereof.
It is attached to the side surface of the pillar 1 at the lower position of the support metal 2 as shown in FIG. 2B by screwing the bolt to the nut 16. Generally, it is assembled at the factory up to the state shown in FIG. 2 (b). Then, the pillar 1 is erected at the construction site, and the beam 7 is attached to the upper end of the pillar 1.
When joining the above, first, as shown in FIG. 2C, the top plate 5 is attached to the upper end of the pillar 1. The top plate 5 is attached to the nut 13 of the stake plate 14 by bolting. This top plate 5
The receiving piece 6 is extended to the side, and the receiving piece 6 is projected to the side of the side surface of the column 1 to which the supporting metal piece 2 is attached. In this way, when the receiving piece 6 is projected from the pillar 1, the receiving piece 6 is superposed on the upper surface of the horizontal piece 4 of the supporting metal 2, and is made to project to the side of the pillar 1 more than the tip of the horizontal piece 4, The base of the portion of the receiving piece 6 protruding from the pillar 1 is the supporting metal 2
It is placed on top of. After this, cross section H
The end portion of the beam 7 formed in a V shape is arranged between the lower surface of the receiving piece 6 of the top plate 5 and the upper surface of the lateral lower receiving piece 12 of the receiving metal fitting 11, and the lower surface of the receiving piece 6 of the beam 7 is arranged. The beam 7 is joined to the pillar 1 via the top plate 5 as shown in FIGS. 1 (a), (b), and (c) by fixing it to the upper surface of the lower receiving piece 12 with a bolt nut. is there. Here, since the base portion of the portion of the top plate 5 projecting from the column 1 of the top plate 5 is supported by the lateral piece 4 of the support metal 2, the beam added to the base portion of the portion of the receiving piece 6 projecting from the column 1 The weight of 7 is also received by the supporting metal 2, and the supporting metal 2 can reinforce the base of the portion of the receiving piece 6 projecting from the pillar 1 to prevent deformation.
In particular, even if there is a large gap between the end face of the beam 7 and the side face of the pillar 1, the base of the portion of the receiving piece 6 projecting from the pillar 1 is supported by the support hardware 2 at this gap. In addition, it is possible to prevent deformation such as buckling. Further, by providing the reinforcing piece 8 between the outer surface of the vertical piece 3 of the supporting metal piece 2 and the lower surface of the horizontal piece 4, the reinforcing piece 8 prevents the horizontal piece 4 supporting the receiving piece 6 from being deformed downward. It is possible to prevent the reinforcing effect of the receiving piece 6 by the support metal 2 from being reduced. In the figure, reference numeral 20 denotes a receiving plate which is attached by being sandwiched between the receiving piece 6 of the top plate 5 and the beam 7, and a floor panel, a deck plate, or the like can be placed and supported on a portion projecting to the side of the beam 7. Is done. In the embodiment shown in FIG. 1, a pair of beams 7 and 7 are respectively joined to the opposite side surfaces of the column 1. However, when the beams 7 are respectively joined to the four sides of the column 1, the beam 7 is shown in FIG. As shown in FIG. 7 (b), the top plate 5 having the cross-shaped receiving piece 6 is provided, and when the beams 7 are respectively joined to the three surfaces of the column 1, the receiving piece 6 is provided in the T-shape as shown in FIG. 7 (b). Top plate 5 and pillar 1
When the beams 7 are respectively joined to the two adjacent surfaces, the top plate 5 having the L-shaped receiving piece 6 is used as shown in FIG. 7 (c). Top plate 5 like this
Even if the number of the receiving pieces 6 provided in each of the receiving pieces 6 changes, since the respective receiving pieces 6 are supported by the supporting metal piece 2, it is necessary to use the pillars 1 having directionality according to the number of the receiving pieces 6. Can be eliminated, and the number of pillars 1 can be reduced. 7th
In the figure, the points where the bolts and nuts are connected are indicated by + marks. FIG. 8 shows another embodiment of the present invention, in which a T-shaped receiving rib 17 as shown in FIG. The end face of the beam 7 is brought into contact with the receiving rib 17, and if necessary, the end face of the beam 7 is welded to the end face of the receiving rib 17 to attach the lower portion of the end of the beam 7 to the receiving metal fitting 11. FIG. 10 shows still another embodiment of the present invention,
In this case, by connecting the horizontal piece 4 of the supporting metal piece 2 and the receiving piece 6 of the top plate 5 with the bolt nut 21,
The receiving piece 6 is connected and fixed to the column 1 via the supporting metal piece 2. In this way, when the receiving piece 6 is connected and fixed to the pillar 1 via the support metal 2, the place where the receiving piece 6 is connected to the pillar 1 by the bolt nut 21 and the beam 7 are bolt nuts on the receiving piece 6.
The distance l to the place where it joins at 22 becomes short, and the beam 7 to the pillar 1
The joint rigidity can be increased.

As described above, according to the present invention, a supporting metal piece having an inverted L-shaped cross section is arranged on the side surface of the upper end of the pillar, and the vertical piece of the supporting metal piece is fixed to the pillar, and the upper end surface of the pillar is fixed. Since the top plate was attached and the receiving piece provided on the top plate was placed on the horizontal piece of the supporting metal and was made to project to the side of the pillar more than the tip of the horizontal piece, The base can be supported by a horizontal piece of support metal for reinforcement, and even if there is a gap between the pillar and the beam, buckling of the top plate at the base of the part protruding from the pillar of the receiving piece, etc. The beam can be joined to the column through the top plate without fear of deformation of the beam. Further, by providing the reinforcing piece between the outer surface of the vertical piece of the supporting metal piece and the lower surface of the horizontal piece, the reinforcing piece can prevent the horizontal piece supporting the receiving piece from being deformed downward. Therefore, the reinforcing effect of the top plate can be enhanced. Furthermore, by connecting the overlapped part of the horizontal piece of the supporting metal piece and the receiving piece of the top plate by bolts and nuts, the receiving piece can be fixed to the pillar through the supporting metal element, and the rigidity of the beam joint can be increased. It is a thing.

[Brief description of drawings]

1 (a), (b) and (c) are a front view, a side view and a plan view of an embodiment of the present invention, and FIGS. 2 (a), (b) and (c) show the assembling procedure of the same. Front view, FIGS. 3 (a) and 3 (b) are a plan view and a front view of the above stigma, and FIGS. 4 (a) and 4 (b) are a front view and a side view of an example of the same supporting metal piece, and FIG. (A)
FIG. 6B is a front view and a side view of another example of the above-mentioned supporting metal, and FIG.
FIG. 7 is a perspective view of the above-mentioned back plate, FIGS. 7 (a), (b) and (c) are plan views of various top plates, respectively, and FIGS. 8 (a) and (b) are other embodiments of the present invention Example front and plan views,
9 (a) and 9 (b) are a front view and a side view of a metal fitting used in the same as above, FIG. 10 is an enlarged front view of still another embodiment of the present invention, and FIG. 11 is a front view of a conventional example. is there. 1 is a pillar, 2 is a supporting metal piece, 3 is a vertical piece, 4 is a horizontal piece, 5 is a top plate, 6 is a receiving piece, 7 is a beam, 8 is a reinforcing piece, and 11 is a receiving fitting.

Claims (3)

[Claims] 1. A receiver provided on a top plate, wherein a support metal having an inverted L-shaped cross section is provided on a side surface of an upper end of the pillar to fix a vertical piece of the support metal to the pillar, and a top plate is attached to an upper end surface of the pillar. Put the piece on the horizontal piece of the supporting metal and project it to the side of the pillar more than the tip of the horizontal piece, attach the bracket to the side surface of the pillar below the receiving piece of the top plate, and receive the end of the beam. And a bracket, and a beam-to-column joining structure, characterized in that the beam end is connected to the bracket and the bracket. 2. The beam-to-column joining structure according to claim 1, wherein a reinforcing piece is provided between the outer surface of the vertical piece of the supporting metal and the lower surface of the horizontal piece. 3. The beam-to-column joining structure according to claim 1 or 2, wherein the overlapping portions of the horizontal piece of the support metal and the receiving piece of the top plate are bolt-nut coupled.