JPH06264507A - Connection part structure of steel framework - Google Patents

Abstract

PURPOSE:To facilitate the manufacture and joining method of connection parts and improve the productivity by uniting the structure of a connection part between a large beam and a small beam with the structure of a connection part between a pillar and the large beam. CONSTITUTION:The end portion of a small beam 2 is joined to the web 1a of a large beam 1 consisting of H-shaped steel through a beam joining metal fitting 3, and the beam joining metal fitting 3 is formed into an almost Z-shape by equipping joining pieces 3a, 3b projectingly provided so that they may come into surface touch respectively with the web 1a of the large beam 1 and an end plate 4 fitted to the end portion of the small beam 2. The large beam 1 and the small beam 2 are joined mutually by bringing these joining pieces 3a, 3b into surface touch respectively with the web 1a of the large beam 1 and the end plate 4 and conducting bolt fixation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called joint box type steel frame joint portion structure for joining a column and a beam through a column-beam joining metal having a rectangular cross section.

[0002]

2. Description of the Related Art Generally, in a joint box type steel frame joint part structure in which a column and a beam are joined together through a column-beam joint metal having a rectangular cross section, Since the beam joint hardware is configured in a rectangular closed cross-section and it is not possible to insert a hand inside it, tap screw holes are formed on the side surface of the pillar / beam joint hardware, and it is joined to this pillar / beam joint hardware. The end plate is attached to the end of the beam to contact the side surface of the metal joint, and a bolt hole is formed in this end plate in correspondence with the tapped screw hole. The column and the beam are joined by attaching the beam joining hardware to the side surface and screwing a joining bolt into the tap screw hole from the bolt hole (see FIG. 5).

Further, in the structure of the joint portion between the large flash and the small flash, for example, a bracket is vertically projected on the side part of the large flash, and the bracket is attached to the web of the small flash. The small burrs are joined to the large burrs by bolting and with bolts and nuts (Fig. 6).
reference).

As described above, in the joint box type steel frame assembly, the structure of the joint between the large beam and the small beam is often completely different from the structure of the joint between the column and the large beam. . Therefore, the joint between the large and small burrs must be designed and manufactured separately from the joint between the pillar and the large bur, and must be joined in a completely different way. However, there were problems such as extremely poor productivity.

The present invention has been made to solve the above problems, and by unifying the structure of the joint between the large and small burrs with the structure of the joint between the pillar and the large burrs, An object of the present invention is to provide a joint portion structure in a steel frame structure that facilitates designing, manufacturing, and joining methods of the joint portion to improve productivity.

[0006]

According to the joint structure of a steel framework according to the present invention, an end portion of a small beam is joined to a web of a large beam made of H-shaped steel through a beam joining metal, and the beam is connected. The joining metal piece is formed into a substantially Z shape by including joining pieces projecting so as to make surface contact with the web of the large beam and the end plates attached to the ends of the small beams, respectively. The web of the large flash and the end plate are brought into surface contact with each other and bolted.

[0007]

【Example】

Example 1. FIG. 1 shows an embodiment of a joint structure of a steel framework according to the present invention. In the figure, reference numeral 1 is a large beam made of H-shaped steel, and 2 is a small beam made of H-shaped steel like the large beam 1. Beam 3 is a beam joining metal for joining the large beam 1 and the small beam 2, and 4 is attached to the end of the small beam 2 by welding in order to join the beam 2 to the web 1a of the large beam 1. End plates 5 are joint bolts for joining the beam joint metal 3 to the web 1a of the large beam 1, and reference numeral 6 is a joint bolt for joining the beam 2 to the beam joint metal 3.

A plurality of bolt holes are formed in the web 1a of the large beam 1.
7,7 are formed vertically and horizontally separated from each other by a predetermined distance.

The beam joining hardware 3 is a web 3c connecting the joining pieces 3a and 3b and the joining pieces 3a and 3b projectingly provided so as to make surface contact with the web 1a of the beam 1 and the end plate 4, respectively.
And is formed in a substantially Z shape. Also, the joining piece
3a has a plurality of bolt holes 8,8 through which the joining bolt 5 can penetrate.
And a plurality of bolt holes 9, 9 through which the joining bolt 6 can penetrate are formed in the joining piece 3b.

The beam joint metal 3 thus formed attaches the joint piece 3a to the web 1a of the overburden 1 and tightens the joint bolt 5 between the bolt holes 7 and 8 to form the web 1a of the overburden 1. It is installed.

The end plate 4 is attached to one side of the web 2a of the burr 2 so as to come into surface contact with the joining piece 3b of the beam joining hardware 3. Joining bolts 6 on the end plate 4
A plurality of bolt holes 10, 10 are formed so that they can penetrate therethrough.

The end plate 4 thus formed is attached to the joint piece 3b, and is fixed to the joint piece 3b by tightening the joint bolt 6 between the bolt holes 9 and 10. With such a structure, the large bar 1 And the burr 2 are joined.

With the structure in which the small beam 2 is joined to the large beam 1 with such a structure, the structure of the joint between the large beam 1 and the small beam 2 is the pillar 11 described in the second embodiment.
Since the structure of the joint between the and the burr 12 is the same in that the end plate 4 is surface-touched and joined by the joint bolt, and that a bolt and nut can be used as the joint bolt, both joints are joined. By substantially unifying the structure of the parts and the joining method, it is possible to make the design, manufacture and joining method of the joint part the same, and it is possible to improve the productivity.

Example 2. 2 and 3 show an example of the joint structure of a joint box type column and a large beam,
In the figure, reference numeral 11 is a column made of square steel pipe, 12 is a large beam made of H-shaped steel, 13 is a column / beam joint metal for joining the upper and lower columns 11 and the large beam 12, and 14 is a column of the upper and lower columns 11.・ Column joint hardware attached to the ends of the upper and lower pillars 11 for joining to the beam joint hardware 13, and 15 is the beam 11 for pillar / beam joint hardware 13
End plate attached to the end of the barr 12 for joining to the beam, 16 is a joining bolt for joining the column-joint metal fitting 14 to the pillar / beam-joint hardware 13, and reference numeral 17 is the end plate 15 for the pillar- A joining bolt for joining the beam joining hardware 13.

The column-beam jointing hardware 13 is composed of vertical ribs 13a which are vertically continuous and are formed in a generally swastika cross section, and end plates 13b and 13b which are horizontally attached to both upper and lower ends of the vertical ribs 13a. A plurality of bolt holes 18 through which the joint bolts 17 can pass are formed in the beam joint portion 13c of the vertical rib 13a. Further, a plurality of bolt holes 19 through which the joining bolts 16 can pass are formed in the upper and lower end plates 13b.

The vertical ribs 13a and the upper and lower end plates 13
b and 13b are integrally assembled by welding.

The column-joined metal fitting 14 is composed of vertical ribs 14a formed in a substantially cross-shaped cross section which is continuous in the vertical direction, and vertical end plates 14b horizontally attached to the upper and lower ends of the vertical ribs 14a.
A plurality of bolt holes 20, 20 through which the joining bolt 16 can penetrate are formed in the upper and lower end plates 14b, 14b.

The end plate 14b on one end side of the pillar-bonded metal fitting 14 is the upper and lower end plates 13 of the pillar-beam bonded metal fitting 13.
Attached to b and 13b respectively, and both bolt holes
A joining bolt 16 is tightened between 19 and 20, and the upper and lower columns 11, 11 are joined to the column / beam joint metal 13 by such a configuration.

The end plate 15 has exactly the same construction as the end plate 4 of the first embodiment, and is attached to one side of the web 12a of the overburden 12 so as to be in surface contact with the beam joint portion 13c of the column / beam joint metal piece 13. . Further, the end plate 15 is formed with a plurality of bolt holes 21, 21 through which the joining bolts 17 can pass.

The end plate 15 is attached to the beam joint portion 13c of the pillar / beam joint hardware 13, and the joint bolt 17 is tightened between the bolt holes 19 and 21 of both ends. It is joined to the pillar / beam joint hardware 13.

In this case, the vertical ribs 13a of the pillar / beam joining hardware 13
Are formed in a generally cross-sectional shape that is continuous vertically, and the beam joints 13c,
Since the opening W is secured between 13c so that the hand can be inserted on the back side of the vertical rib 13a, when the joining bolts 16 and 17 are tightened, the joining bolt 16 and Bolts and nuts can be used as 17.

FIGS. 4 (a) and 4 (b) show a modified example of a pillar / beam joint metal fitting. In the drawings, reference numeral 13a is a vertical rib and 13b.
Is the upper and lower end plates, 18 is the large beam 12 end plates
A bolt hole for passing a joining bolt 17 for joining 15 and a reference numeral 19 is a bolt hole for passing a joining bolt 16 for joining the pillar joining metal fittings 14 of the upper and lower pillars 11.

Further, in FIG. 3 (a), the vertical rib 13a is attached around the upper and lower end plates 13b, 13b, and in FIG. 3 (b), the vertical rib 13a is formed in an L shape.
In addition, the openings W are provided between the vertical ribs 13a and 13a so that the upper and lower end plates 13b are attached to the opposite corners, and in any case, the hands can be inserted on the back side of the vertical rib 13a.

Since the pillar / beam joining metal piece 13 is constructed in this way, bolts / nuts can be used as joining bolts 16 and 17 for joining the upper and lower pillars 11 and the large beam 12.

[0025]

As described above, according to the joint structure of the steel frame assembly according to the present invention, the end plates attached to the ends of the burr are surface-touched and joined by the joining bolts. Since the structure of the joint between the large beam and the small beam is the same as the structure of the joint between the column and the large beam in that the bolts and nuts can be used as joining bolts, both By substantially unifying the structure and the joining method of the joint portion, the designing, manufacturing, and joining methods of the joint portion can be made the same, and the productivity can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a joint portion structure of a steel framework according to the present invention, showing a joint portion of a large beam and a small beam.

FIG. 2 is an exploded perspective view showing a structure of a joint portion of a joint box type column and a large flash.

FIG. 3 is a cross-sectional view of the pillar / beam joint metal piece in FIG.

4 (a) and 4 (b) are cross-sectional views showing a modified example of the pillar / beam joint metal piece in FIG.

FIG. 5 is an exploded perspective view showing an example of a conventional example of a structure of a joint portion of a joint box type pillar and a large flash.

FIG. 6 is a vertical cross-sectional view showing an example of a conventional joint structure of a large flash and a small flash.

[Explanation of symbols]

1 ... Large beam, 2 ... Small beam, 3 ... Beam joining hardware, 4 ... End plate, 5,6 ... Bonding bolt, 7,8,9,10 ... Bolt hole, 11
… Columns, 12… Large beams, 13… Column / beam joint hardware, 14… Column joint hardware, 15… End plates, 16,17… Joint bolts, 18,19,
20,21… Bolt holes.

Claims (1)

[Claims] 1. In a joint box type steel frame joint structure for joining a column and a beam through a column-beam joining metal fitting, a small beam end portion is provided on a web of a large beam made of H-shaped steel. It is provided with a joining piece which is joined through a beam joining piece and is provided so as to make surface contact with the end plate attached to the end of the large beam web and the beam joining piece, respectively. A joint part structure of a steel frame assembly, which is formed in a shape and is formed by bringing the joining piece into surface contact with the web of the large beam and the end plate respectively and bolting.