JPH04339936A - Device for beam-column jointing - Google Patents

Abstract

PURPOSE:To obtain sufficient jointing strength by welding a jointing member in T-shape section between flanges of an H-steel column, and by forming bolt holes for jointing a beam to flanges of the jointing member. CONSTITUTION:Bolt holes 3 for jointing a beam 12 are formed to flanges 3 of an H-steel column 1, and a jointing member 7 in T-shape section is welded to a channel between the flanges 3. Then bolt holes 10 for jointing the beam are formed to flanges 9 of the jointing member 7, and bolt holes 15 are formed to an end plate 14 that is welded to the beam 12. High strength bolts 16 are inserted either into the bolt holes 4 of the column 1 or the bolt holes 10 of the jointing member 7, and the high strength bolts are further inserted through the bolt holes 15 of the end plate 14, and thereby the jointing member 7 and the end plate 14 fixed together. Therefore jointing strength almost the same as on the maximum principle axis side of the beam can be obtained.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for joining a beam to a column made of H-shaped steel.

0002

[Prior Art] Conventional equipment for joining the ends of beams to H-shaped steel columns generally involves forming bolt holes in the flanges of the columns, and attaching the end plates of the beam ends with bolts inserted into these bolt holes. things are being done. However, with this method, it can only be joined to the side of the column on the flange side, so in order to join to the side of the groove between the flanges, a joining plate with bolt holes is welded in advance across the flanges. .

0003

[Problems to be Solved by the Invention] However, as described above, in the case where a joint plate is welded between the flanges, the direction of the beam joined to this joint plate is the weak axis direction of the column, and the load in this direction is It has the disadvantage that it cannot be supported and cannot be used as a structure. The present invention solves these drawbacks of H-type steel columns and provides a column-beam joining device that can obtain sufficient joint strength even when joining a beam to the groove side between flanges. The purpose is to

0004

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a joining member having a T-shaped cross section consisting of a web and a flange in a groove between the flanges of a column made of H-shaped steel. Welding the tip to the web side surface of the pillar,
Both ends of the flange are similarly welded and fixed to the flange ends of the column, and bolt holes for joining the end plates of the beam are formed in the flanges of this joining member.

[0005]

[Operation] A joining member with a T-shaped cross section is attached to the side of the groove between the flanges of the beam, and the web tip of the joining member is welded to the web side of the column, so it is almost connected to the strong axis side of the beam. Equivalent bonding strength can be obtained.

[0006]

[Embodiment] In FIGS. 1 and 2 showing an embodiment of the present invention, reference numeral 1 denotes a column made of H-shaped steel, and flanges 3, 3 on both sides of the web 2 are provided with beams on the sides of the flanges 3, 3. Bolt holes 4, 4, . . . for joining are formed. 7 is a joining member of the present invention, which is a single length T having a web 8 and a flange 9 integrally formed on one edge of the web 8.
The end edge of the flange 9 is in contact with and welded to the end edges of both flanges 3 and 3 of the column 1. Furthermore, the tip of the web 8 is brought into contact with the side surface of the web 2 of the column 1 and welded by fillet welding. A bolt hole 10 for joining the beam is formed in the flange 9 of the joining member 7 welded in this manner. In this embodiment, the joining members 7 are attached to both sides of the web 2 of the pillar 1, but if the beam is to be joined to only one side, it is sufficient to attach them only to that joining side.

The beam 12 of this embodiment has flanges 13, 1
A thick end plate 14 is welded in advance to the tip of the H-shaped steel, and the bolt holes 4 and 10 of the pillar 1 are connected to the end plate 14. Matching bolt holes 15, 15, . . . are formed.

Reference numeral 16 denotes a high-strength bolt for joining, which is inserted into the bolt holes 4 and 10 of the flange of the column 1 or the joining member 7.
The flange 9 or the joining member 7 and the end plate 14 are tightened and fixed by inserting the end plate into the bolt hole 15 of the end plate 14 from the back side, and then inserting the tip into the bolt hole 15 of the end plate 14 and screwing the nut 17 together. . Note that this high-strength bolt 16 is usually a one-sided type that can be tightened from one side by grasping the threaded end and the nut 17 from the outside at the same time.

FIG. 3 shows an embodiment in which an H-shaped steel column 1 having a lip 18 on the flange 3 is used, and the flange 9 of the joining member 7 is welded to the outer surface of the lip 18. In this case, the distance from the center of the column 1 to the outer surface of the joining member 7 is longer than the distance from the center of the column 1 to the outer surface of the flange 3 of the column 1 by the thickness of the lip 18. In some cases, it may be necessary to change the length of the beam 12 in both directions, but in that case, the adjustment can be made by making a notch 19 in the lip 18 in this portion, as shown in FIG. This corresponds to the column 1 as shown in FIG. 1 without the lip 18.
The same applies to the case where the edge of the flange 3 of the column 1 is cut out by the difference in length.

0010

[Effects of the Invention] According to the present invention, a joining member having a T-shaped cross section is attached to the side surface of the groove between the flanges of the beam, and the web tip of the joining member is welded to the web side surface of the column. , it is possible to obtain a bonding strength that is almost the same as that on the strong axis side of the beam. Furthermore, the joint surface of the joining member does not protrude significantly from the pillar, making it convenient to transport and store.Also, since there is space on both sides of the joining member, bolts or nuts can be attached to the joining member. It can be easily installed on the back side of the flange, and has good workability. Furthermore, in the third invention of this application, the lip or the lip and the flange of the column 1 with a lip, or the flange of the column without a lip is cut out and the flange of the joining member is welded. The length of the beam joined to the member 7 and the beam joined to the flange of the column 1 can be made the same, and there is an effect that the same beam can be used.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a joint between a column and a beam, showing an embodiment of the present invention.

FIG. 2 is a side view as well.

FIG. 3 is a cross-sectional view of a column showing another embodiment of the invention.

FIG. 4 is a perspective view of a main part of a column showing still another embodiment of the present invention.

[Explanation of symbols]

1 Pillar 2. Web 3 Flange 7 Joining member 8. Web 9 Flange 10 Bolt hole 12 Beam 14 End plate 16 High strength bolt 18 Lip 19 Notch

Claims (3)

[Claims] Claim 1: A joining member having a T-shaped cross section and consisting of a web and a flange is placed in a groove between flanges of a column made of H-shaped steel;
The tip of the web is welded to the web side surface of the column, and both edges of the flange are also welded and fixed to the flange edges of the column, and bolt holes are made to connect the end plate of the beam to the flange of this joining member. A column/beam joining device characterized by forming. 2. The column-beam joining device according to claim 1, wherein the column is an H-shaped steel having a lip at the tip of the flange, and the flange of the joining member is welded to the outer surface of the lip. 3. The column/beam joining device according to claim 1 or 2, wherein the flange or lip of the column or the lip and the flange are cut out, and the flange of the joining member is welded at this cutout.