JPH0317327A - Joint construction of beam to column - Google Patents

Abstract

PURPOSE:To increase rigidity of a beam joint together with reinforced plates provided to the inside of a column by connecting a longitudinal piece of a bearing metal fitting having a reverse L type section provided to the side of the upper end of the column to a top plate having a lateral piece provided to the upper end of the column with bolts to the column. CONSTITUTION:A bearing metal fitting 2 having a reverse L type section constituted of a longitudinal piece 3, lateral piece 4 and reinforced piece 8 is provided to a steel column 1 having a shaped section and a top plate 5 welded and fixed to the surface thereof. While the lateral piece 4 and a receiving piece 6 of the top plate 5 are connected with a bolt and nut 21, the longitudinal piece 3 and the steel column 1 reinforced with a backing plate 15 are bolted to assemble and fix. As a result, a space between a place to connect the receiving piece 6 to the column 1 with the bolt/nut 21 and a place to connect a beam 7 to the receiving piece 6 with bolts and nuts 22 is reduced. According to the constitution, rigidity of a joint of beams hard to be influenced by buckling, etc., can be increased.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a structure for connecting a beam to the upper end of a column.

[Jubei's technique! ] In steel-frame houses, etc., the beam 7 on the top floor is connected to the top end of the column 1 as shown in Figure 11. That is, the top plate 5 is attached to the upper end surface of the column 1, the receiving piece 6 extended to the top plate 5 is made to protrude to the side of the column 1, and the receiving piece 6 is further attached to the side surface of the column 1 on the lower side of the receiving piece 6. 11, and place the butt part of the beam 7 between the receiving piece 6 of the top plate 5 and the lower receiving piece 12 of the receiving plate 11, and fasten it to the receiving piece 6 and the lower receiving piece 12 with bolts and nuts, respectively. This is done by combining them. Problem to be Solved by the Invention However, in this way, the beam 7 is connected to the column 1 through the top plate 5.
When joining the top plate 5 to the pillar 1, the load of the beam is applied to the receiving piece 6 protruding from the pillar 1 of the top plate 5, so there is a risk that deformation such as buckling may occur in the top plate 5 at the base of the receiving piece 6. There was a problem. In particular, beam 7
If the gap between the end face of the support piece 6 and the side face of the column 1 is large, the base of the receiving piece 6 is not supported at the location of this gap, and deformation such as buckling is likely to occur. The present invention has been made in view of the above points, and it is an object of the present invention to provide a structure for joining a beam to a column, in which the beam can be joined without fear of deforming the top plate at the base of the receiving piece. This is the purpose.

[Means to solve the problem]

The joining structure of a beam to a column according to the present invention is such that a support metal piece 2 having an inverted L-shaped cross section is arranged on the side surface of the upper end of a column 1, and a vertical piece 3 of the support metal piece 2 is fixed to the column 1. Attach the top plate 5 to the upper end surface, and make the receiving piece 6 provided on the top plate 5 protrude to the side of the column 1 with the lower surface of its base facing the upper surface of the horizontal piece 4 of the support hardware 2. 7 end receiving piece 6
Beam 7 is fixed to the lower side of column 1 and attached to column 1 via top plate 5.
It is characterized by joining. Further, in the present invention, it is preferable that a reinforcing piece 8 is provided between the outer surface of the vertical piece 3 of the supporting hardware 2 and the lower surface of the horizontal piece 4. Furthermore, in the present invention, it is preferable to connect the horizontal piece 4 of the support hardware 2 and the base of the receiving piece 6 of the top plate 5 with bolts and nuts.

[For use]

In the present invention, the receiving piece 6 provided on the top plate 5
is made to protrude to the side of the column 1 with the lower surface of its base facing the upper surface of the horizontal piece 4 of the support piece 2, so that the base of the receiving piece 6 is supported by the support piece 2. The beam 7 can be joined without deforming the top plate 5 at the base of the receiving piece 6. Further, by providing the reinforcing piece 8 between the outer surface of the vertical piece 3 of the support hardware 2 and the lower surface of the horizontal piece 4, the effect of reinforcing the top plate 5 by the support hardware 2 can be enhanced. Furthermore, by connecting the bracket 4 of the support hardware 2 and the base of the receiving piece 6 of the top plate 5 with bolts and nuts, the base of the receiving piece 6 can be fixed to the column 1 via the support metal 2. It is possible to increase the rigidity of the connection of the beam 7 to the

【Example】

The present invention will be explained in detail below using examples. The column 1 is made of steel or the like and has a rectangular cross section, and a column title plate 14 with a nut 13 on the underside as shown in FIG. 3 is attached to the upper end by welding or the like as shown in FIG. 2(a). It is installed like this. The supporting hardware 2 has a vertical piece 3 and a horizontal piece 4, and is shaped into an inverted L-shape in cross section as shown in FIG. It is set vertically. In addition to providing one reinforcing piece 8 as shown in FIG. 4, a plurality of reinforcing pieces 8 may be provided as shown in FIG. This supporting hardware 2 is attached to the side surface of the upper end of the column 1 at the point where the beam 7 is connected, as shown in Figure #s2 (b). Inside the column 1, a back plate 15 provided with a nut 16 as shown in FIG. 6 is disposed on its inner surface.
Pass the bolt from the vertical piece 3 of the support hardware 2 to the column 1 and insert it into the back plate 15.
By screwing it into the nut 16, the vertical piece 3 is fixed to the column 1, and the supporting hardware 2 is attached. *The Taukekinhei 11 is shaped like a T-shape in vertical section and horizontally, and by screwing a bolt from the fixed piece 18 at its base through the column 1 to the nut 16 on the back plate 15, As shown in (b), the pillar 1 is placed at the lower position of the support hardware 2.
It is attached to the side of the In general, the condition shown in Figure 2(b)!
! ! It is assembled in a factory using insects. Then, this column 1 is erected at the construction site, and the beam 7 is placed at the top of column 1.
To join the columns, first attach the top plate 5 to the upper end of the column 1 as shown in FIG. 2(c). The top plate 5 is attached by bolting to the nut 13 of the capital plate 14.A receiving piece 6 extends from the top plate 5, and the receiving piece 6 is attached to the supporting metal fitting 2.
It is made to protrude laterally from the side of pillar 1 to which it is attached. In making the receiving piece 6 protrude from the pillar 1 in this way, the upper surface of the horizontal piece 4 of the supporting hardware 2 is placed on the lower surface of the base of the receiving piece 6, and the base of the receiving piece 6 is placed above the supporting hardware 2. It is arranged so that it is placed on the .・After this, attach the bolt part of the beam 7, which has a horizontal H-shaped cross section, to the receiving piece 6 of the top plate 5.
The beam 7 is arranged between the lower surface and the upper surface of the horizontal lower receiving piece 12 of the receiving metal member 11, and is fixed to the lower surface of the receiving piece 6 of the beam 7 and the upper surface of the lower receiving piece l2 with bolts and nuts. As shown in Figures 1 (a), (b), and (C), a beam 7 is connected to a column 1 via a top plate 5. Here, since the base of the receiving piece 6 of the top plate 5 is supported by the horizontal piece 4 of the supporting piece 2, the weight of the beam 7 applied to the base of the receiving piece 6 can also be received by the supporting piece 2. It is possible to prevent deformation by reinforcing the base of the receiving piece 6 with the supporting hardware 2. In particular, even if there is a large gap between the free surface of the beam 7 and the side surface of the column 1, the base of the receiving piece 6 is
This prevents deformation such as buckling from occurring. Furthermore, by providing a reinforcing piece 8 between the outer surface of the vertical piece 3 of the support hardware 2 and the lower surface of the horizontal piece 4, the reinforcing piece 8 prevents the horizontal piece 4 that supports the receiving piece 6 from deforming downward. It is possible to prevent the reinforcement and reinforcing effect of the receiving piece 6 by the supporting hardware 2 from being reduced. In the figure, 20 is inserted between the receiving piece 6 of the top plate 5 and the beam 7. It is a receiving plate that can be attached, and is designed so that floor panels, deck plates, etc. can be placed and supported on the side protruding parts of the beams.In the embodiment shown in Fig. 1, a pair of beams 7, 7 However, if the beams 7 are to be connected to each of the four sides of the column 1, a top with a cross-shaped receiving piece 6 as shown in FIG. 7(a) is used. Plate 5, column 1
When the nest 7 is joined to each of the three sides of the
When connecting the top plate 5 with a T-shaped receiving piece 6 as shown in FIG. This uses a top plate 5 provided with 6. Since the number of receiving pieces 6 provided on the top plate 5 changes in this way, and the base of each receiving piece 6 is supported by the supporting hardware 2,
There is no need to use columns 1 with directionality depending on the number of receiving pieces 6, and the types of columns 1 can be reduced. In Figure 7, the locations where bolts and nuts are connected are indicated by marks. FIG. 8 shows another embodiment of the present invention, in which a T-shaped receiving lip 17 as shown in FIG. 9 is used as the receiving plate i4:11, and the beam 7 is
The lower bolt surface of the beam 7 is brought into contact with this receiving lip 17, and if necessary, this end face of the beam 7 is welded to the end face of the receiving lip 17, so that the lower part of the end of the beam 7 is brought into contact with the receiving lip 17. It is set to be installed at 4:11. FIG. 10 shows still another embodiment of the present invention, in which the horizontal piece 4 of the support metal fitting 2 and the base of the receiving piece 6 of the top plate 5 are connected with bolts and nuts 21 to form a receiving part. The base of the piece 6 is connected and fixed to the column 1 via the support metal 2.
When the base of the receiving piece 6 is connected and fixed to the pillar 1 through the support member 2 in this way, the part where the receiving piece 6 is connected to the pillar 1 with the bolt and nut 21 and the end 7 are connected to the receiving piece 6 with the bolt and nut 22. The distance l between the beam 7 and the column 1 can be shortened, and the rigidity of the connection of the beam 7 to the column 1 can be increased.

【Effect of the invention】

As described above, in the present invention, a support metal piece having an inverted L-shaped cross section is arranged on the side surface of the upper end of the column, a fir piece of the support metal piece is fixed to the column, and a top plate is attached to the upper end surface of the column. Since the receiving piece provided on the top plate is made to protrude to the side of the column with the lower surface of its base facing above the horizontal piece of the supporting metal piece, the base of the receiving piece can be placed on the horizontal piece of the supporting metal piece. It can be supported and reinforced, and the beam can be connected to the column via the top plate without fear of buckling or other deformation of the top plate at the base of the receiving piece. In addition, by providing a reinforcing piece between the outer surface of the vertical piece of the support metal piece and the lower surface of the horizontal piece, the reinforcing piece can prevent the horizontal piece that supports the receiving piece from deforming downward, and the support metal piece can be prevented from deforming downward. This can enhance the reinforcing effect of the top plate. Furthermore, by connecting the horizontal piece of the support hardware and the base of the receiving piece of the top plate with bolts and nuts,
The base of the receiving piece can be fixed to the column via supporting hardware, increasing the rigidity of the beam joint.

[Brief explanation of drawings]

Figures W41 (a), (b), and (c) are a front view, a side view, and a plan view of an embodiment of the present invention, and Figures 2 (a), (b), and (e) are front views showing the assembly procedure of the same. , FIGS. 3(a) and 3(b) are a plan view and a front view of the capital plate of the same as above, FIGS. )
(b) is a front view and a side view of another example of the same support metal fittings, No. 6
The figure is a perspective view of the back plate same as above, FIGS. 7(a), (b), and (c) are plan views of various top plates same as above, respectively, and FIGS. 8(a) and (b) are other embodiments of the present invention. Example front and top views,
9(a) and 9(b) are front and side views of the receiver used in the above, FIG. 10 is an enlarged front view of still another embodiment of the present invention, and FIG. 11 is a front view of the conventional example. It is. 1 is a column, 2 is a support 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, and a reinforcing piece.

Claims (3)

[Claims] (1) A supporting metal piece with an inverted L-shaped cross section is installed on the side surface of the top end of the column, the vertical piece of the support metal piece is fixed to the pillar, and a top plate is attached to the top surface of the pillar, and the receiving piece provided on the top plate is The lower surface of the base is placed on the horizontal piece of the support hardware, and it protrudes to the side of the column, and the end of the beam is fixed to the underside of the receiving piece, and the beam is attached to the column via the top plate. A beam-to-column joint structure characterized by being joined together. (2) The structure for joining a beam to a column according to claim 1, characterized in that a reinforcing piece is provided between the outer surface of the vertical piece and the lower surface of the horizontal piece of the supporting hardware. (3) The structure for joining a beam to a column according to claim 1 or 2, characterized in that the horizontal piece of the support metal piece and the base of the receiving piece of the top plate are connected with bolts and nuts.