JPH06264508A - 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:A beam joining metal fitting 3 formed into a hat shape by being equipped with right and left joining pieces 3a, 3a projectingly provided so as to come into surface touch with the web 1a of a large beam 1 and a groovelike joining portion 3b formed between the right and left joining pieces 3a, 3a is fitted to the web 1a of the large beam 1 consisting of H-shaped steel by conducting the bolt fixation of the right and left joining pieces 3a, 3a at the web 1a of the large beam 1. A beam joining metal fitting 4 formed into a hat shape by being equipped with a groovelike joining portion 4a to come into surface touch with the joining portion 3b of the beam joining metal fitting 3 and upper and lower perpendicular pieces 4b, 4b provided projectingly at both the upper and lower end portions of the joining portion 4a is fitted to the end portion of a small beam 2 to be joined to the large beam 1. Also, the joining portion 3b of the beam joining metal fitting 3 fitted to the large beam 1 and the joining portion 4b of the beam joining metal fitting 4 fitted to the small beam 2 are brought into surface touch with each other, and at the same time bolt fixation is made by means of plural joining bolts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint box structure of a so-called joint box type steel frame, in which a column and a beam are joined via a joint having a rectangular cross section.

[0002]

2. Description of the Related Art Generally, in a joint box type steel frame joint structure for joining a column and a beam through a column-beam joint metal having a rectangular cross section, Since the beam-joined metal fittings are configured in a rectangular closed cross-section and it is not possible to insert a hand inside them, tap screw holes are formed on the side surface of the pillar-beam joined hardware and joined to this pillar-beam joined hardware. The end plate is attached to the end portion of the beam to be in contact with the side surface of the metal object, and a bolt hole is formed in the end plate corresponding to the tap screw hole, and the end plate is attached to the metal object. The pillar and the beam are joined together by attaching the bolt to the side surface portion and screwing a bolt into the tapped screw hole from the bolt hole (see FIG. 4).

Further, in the structure of the joint portion of the large flash and the small flash, for example, a bracket is provided so as to protrude from the side of the large flash,
The bracket is attached to the web of the flash, and the flash and the flash are joined by bolting the bracket and the web with bolts and nuts (see FIG. 5).

As described above, in the joint box type steel framework, 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 manufactured separately from the joint between the pillar and the large burrs, and must be joined in a completely different manner. There were issues such as extremely poor productivity.

The present invention has been made in order to solve the above problems, and unifies the structure of the joint between the large and small burrs with the structure of the joint between the pillar and the large burrs as much as possible. Thus, it is an object of the present invention to provide a joint portion structure in a steel frame structure that facilitates manufacturing and joining methods of the joint portion to improve productivity.

[0006]

The joint structure of a steel frame assembly according to the present invention comprises a web of a large beam made of H-section steel, and a left and right joint piece projectingly provided so as to make a surface contact with the web. , A beam-shaped metal fitting having a groove-shaped joint formed between the left and right joint pieces is attached by bolting the left and right joint pieces to the web of the large bar, At the end of the burr to be joined to, a joint formed in a groove shape so as to make surface contact with the joint of the beam joint metal, and vertical vertical pieces protruding at the upper and lower ends of this joint. Attaching a beam-joined metal fitting formed in a hat shape by including, and making a surface contact between the joined portion of the beam-joined metal article attached to the large beam and the joint of the beam-joined metal article attached to the small beam Both are bolted together with multiple joining bolts. It is constructed by.

[0007]

【Example】

Example 1. FIG. 1 shows an embodiment of a joint portion 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 made of H-shaped steel like the large beam 1. Small beam 3 is a beam joining metal for joining large beam 1 and small beam 2, 4 is a small beam 2 for joining beam 2 to the side of large beam 1 through beam joining metal 3. Beam-joining metal fittings 5 attached to the ends by welding, 5 are beam-joining metal fittings 3
A joint bolt for bolting to the web 1a of the above, and reference numeral 6 is a joint bolt for bolting the beam joint metal 3 and the beam joint metal 4.

A plurality of bolt holes 7, 7 through which the joining bolts 5 can penetrate are formed in the web 1a of the overburden 1 vertically and horizontally separated by a predetermined distance.

The beam joining hardware 3 comprises a left and right joining pieces 3a, 3a protruding so as to make surface contact with the web 1a of the beam 1 and a joining portion 3b formed between the left and right joining pieces 3a, 3a. It is formed into a shape. The joint portion 3b is formed in a groove shape that bulges toward the burr 2 side so as to form a gap S into which a hand can be inserted on the back side of the joint portion 3b when tightening the joint bolt 6.

The left and right joint pieces 3a, 3a are formed with a plurality of bolt holes 8,8 through which the joint bolt 5 can penetrate, and the joint portions
3b has a plurality of bolt holes 9,9 through which the joining bolt 6 can penetrate.
Are formed. The beam-bonding hardware 3 is simply formed by bending one plate.

The beam joint metal 3 thus formed is attached to the web 1a of the barr 1 and the joint bolts 5 are tightened in the bolt holes 8 of the left and right joint pieces 3a and the bolt holes 1b of the web 1a. It is attached to the web 1a of the overburden 1.

The beam-joining metal piece 4 bulges toward the beam-joining metal piece 3 side so as to make surface contact with the joint part 3b of the beam-joining metal piece 3 between the vertical vertical pieces 4a, 4a and the vertical vertical pieces 4a, 4a. It is formed in a hat shape with the formed joint portion 4b. Joint
4b has a plurality of bolt holes 10,1 through which the joining bolt 6 can penetrate.
0 is formed.

The beam-joining metal member 4 formed in this manner is attached to both sides of the web 2a of the small beam 2 and the small beam 2 is formed.
It is attached by welding to the web 2a and the upper and lower flanges 2b, 2b.

Further, the joint portion 3b of the beam joint metal 3 and the joint portion 4b of the beam joint metal 4 are attached to each other, and the joint bolts 6 are tightened in the bolt holes 9 and 10 of both sides. The small flash 2 is joined to the side of the flash 1.

In this case, since the joint portion 4b of the beam joint metal 4 is formed in a groove shape that bulges toward the burr 2 side, and a hand can be inserted into the back side of the joint portion 4b, a bolt / nut is used as the joint bolt 6. Therefore, the large burr 1 and the small burr 2 can be joined easily and reliably.

Further, since the structure of the joint portion between the column and the large beam described in the second embodiment is common in that the beam-joining metal object is surface-touched and is joined by a bolt and a nut, both joints are connected. The structure of the parts can be almost unified.

Example 2. 2 and 3 show the structure of the joint between the pillar and the large flash, and in the drawings, the same parts as those in the first embodiment are designated by the same reference numerals and the description thereof is omitted.

Reference numeral 11 is a pillar made of a rectangular steel pipe, 12 is a pillar / beam joint metal for joining the upper and lower pillars 11 and the large beam 1,
Reference numeral 13 is a pillar-joint metal fitting attached to an end of the upper-lower pillar 11 for joining the upper and lower pillars 11 to the pillar-beam joint hardware 12, and 14 is a joint for joining the pillar-joint hardware 13 to the pillar-beam joint hardware 12. The bolt and the reference numeral 15 are the beam-joining metal fittings 4 and the column-beam-joining metal fittings 12.
It is a joining bolt for joining to.

The pillar / beam joint metal fitting 12 has a rib 12a formed in a cross-shaped cross section which is continuous in the vertical direction, and end plates 12b horizontally attached to the upper and lower ends of the rib 12a.
And L attached to the periphery of the end plate 12b so as to form a short column having a rectangular cross section with the same diameter as the upper and lower columns 11.
It is integrally configured with a plurality of side fittings 12c having a V-shaped cross section (see FIG. 3).

A plurality of bolt holes 16 through which the joining bolts 14 can penetrate are formed in each corner of the upper and lower end plates 12b, and a plurality of bolt holes 17 through which the joining bolts 15 can penetrate are formed in the side fitting 12c. Are formed.

The upper and lower end plates 12b and side fittings 12
When tightening the connecting bolts 14 and 15 between c and
A fixed space 12d is provided so that a hand can be inserted behind the end plate 12b and the side fitting 12c. The ribs 12a, the upper and lower end plates 12b, and the side fittings 12c are integrally assembled by welding.

Then, the joint portion of the beam-joining metal member 4 of the large beam 1
4b is attached to the side metal fitting 12c of the pillar / beam joint hardware 12, and the joint bolts are tightened in both bolt holes, so that the large beam 1 is joined to the pillar / beam joint hardware 12.

In this case, a hook which can be hooked to the side metal fitting 12c of the pillar / beam joint metal fitting 12 at the end of the large beam 1 is used.
Since the protrusion 18 is provided and the hook 18 is hooked on the side fitting 12c to tighten the joining bolt 15, the bolt can be easily tightened.

The pillar-joined metal piece 13 is formed by a rib 13a formed in a cross-shaped cross section which is continuous in the vertical direction, and end plates 13b and 13b horizontally attached to both upper and lower ends of the rib 13a. A plurality of bolt holes 19 through which the joining bolts 14 can pass are formed at each corner of the end plate 13b. The ribs 13a and the upper and lower end plates
The ribs 13b and 13b are integrally assembled by welding similarly to the rib 12a, the upper and lower end plates 12b, and the side fitting 12c.

Then, the end plates 13b of the upper and lower column joint hardware 13 are attached to the end plates 12b of the column and beam joint hardware 12, respectively, and the bolts 16 and 19 are joined with bolts.
The upper and lower pillars 11 are joined to the pillar / beam joint hardware 12 by tightening 14 and by such a configuration.

The upper and lower end plates 12b and side fittings 12
When tightening the connecting bolts 14 and 15 between c and
Since a certain empty space S is secured so that a hand can be inserted on the back side of the end plate 12b and the side fitting 12c, it is possible to use bolts and nuts as the joining bolts 14 and 15 instead of tap screws. The upper and lower pillars 11 and the pillar / beam joining hardware 12 can be joined easily and easily.

With this structure, a large beam 1 and a small beam 2
And the upper and lower columns, and the structure in which the upper and lower columns and the large beam are joined, the structure of the connection between the large beam 1 and the small beam 2 is the same as the connection between the column and the large beam 1. Since the structure is the same as that of the above, the point of bolting the beam joining hardware 4 by surface contact and the use of bolts and nuts as joining bolts, the structure and joining method of both joints should be almost unified. As a result, the designing, manufacturing, and joining methods of the joint portion are the same, and the productivity can be improved.

[0028]

As described above, according to the joint structure of the steel frame assembly according to the present invention, the joint structure of the large burrs and the small burrs is the same as that of the columns and the large burrs. Since the structure and the end plate are in surface contact and bolted with the joining bolts and the bolts and nuts can be used as the joining bolts, the structure of both joints and the joining method are almost unified. Further, there is an effect that the designing, manufacturing and joining method of the joint portion are facilitated and the productivity is remarkably enhanced.

[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 perspective view of a pillar / beam joining metal piece.

FIG. 4 is an exploded perspective view showing an example of a conventional example of a joint portion structure of a joint box type column and a large flash.

FIG. 5 is a perspective view showing an example of a conventional joint structure of a large flash and a small flash.

[Explanation of symbols]

1 ... Large burr, 2 ... Small burr, 3,4 ... Beam joining hardware, 5,6 ... Joint bolt, 7,8,9,10 ... Bolt hole, 11 ... Column, 12 ... Column / beam joining hardware, 13 ... Column joint hardware, 14,15… Joint bolts, 16,17
… Bolt holes, 18… hooks, 19… bolt holes.

Claims (1)

[Claims] 1. In a joint box type steel frame joint part structure for joining a column and a beam through a column / beam joint metal, a web of a large beam made of H-shaped steel is surface-touched to this web. The left and right joint pieces are provided with the left and right joint pieces and the groove-shaped joint portions formed between the left and right joint pieces. Attached by bolting to the beam, at the end of the small beam to be joined to the large beam, a joint formed in a groove shape so as to make surface contact with the joint of the beam joint metal, and the upper and lower sides of this joint. Attaching a beam-joining metal fitting formed in a hat shape with upper and lower vertical pieces protruding at both ends,
Moreover, the joint portion of the beam-joined metal article attached to the large beam and the joint portion of the beam-joined metal article attached to the small beam are brought into surface contact, and bolted by a plurality of joint bolts. Characteristic steel frame joint structure.