JP2001262695A - Beam connection device - Google Patents

Abstract

(57) [Problem] To provide a beam connecting device capable of connecting both beams such that a connecting member or a bolt does not project on both upper and lower surfaces of a connecting portion of the beams. SOLUTION: Web 12 of H-shaped steel beams 11a, 11b
And the upper and lower flange pieces 23 and 2 which are respectively fitted to the concave grooves 20 and 20 formed on both sides thereof and contact the web 12 and the upper and lower flanges 13 and 14.
4 and a pair of connecting members 16, 16 on both sides,
With the opposing end surfaces of both beams 11a and 11b to be connected to each other, the connecting members 16 are fitted into the concave grooves 20 and 20 on both sides thereof so as to sandwich the abutting portion. Web pieces 22, 22 of members 16, 16
And a web connecting device for connecting the webs 12 and 12 of both beams 11a and 11b with bolts 17 penetrating respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam connecting apparatus for connecting a plurality of divided H-shaped steel beams to each other when bridging a beam between opposing columns of a steel structure. .

[0002]

2. Description of the Related Art FIG. 5A is a perspective view showing a conventional connection device, and FIG. 5B is a longitudinal sectional view thereof. As shown in this figure, when connecting the divided H-shaped steel beams 1a and 1b, a pair of left and right connecting plates 5 and 5 contacting both surfaces of the web 2 of the H-shaped steel beams 1a and 1b, respectively. H-shaped steel beams 1a, 1b
A pair of upper and lower connecting plates 6, which contact the upper and lower flanges 3 and 4, respectively.
7 with the opposite end faces of both beams 1a and 1b to be connected to each other, and left and right connecting plates 5 on both left and right sides of the webs 2 and 2 so as to sandwich the butted portion.
5, the webs 2 and 2 of both beams 1a and 1b are connected to the left and right connecting plates 5 and 5 by a plurality of bolts 8 penetrating respectively, and the upper flanges 3 and 3 of both beams 1a and 1b are connected. The upper connecting plate 6 is applied, and the upper connecting plate 6 and the upper flanges 3 and 3 are bolted together.
4, the lower connecting plate 7 is applied to the lower connecting plate 7 and the lower flanges 4, 4 are connected by bolts 8.

[0003]

According to the above beam connecting device, the beams 1a and 1b connected by the beam connecting device are provided.
The upper and lower connecting plates 6 and 7 protrude from both upper and lower surfaces of the connecting portion to form a step, and the tips of the bolts 8 protrude, so that the appearance is poor and joists are mounted on the beams 1a and 1b. When constructing a floor substrate, it is difficult to install the joists.

The present invention relates to a beam connecting apparatus which can connect both H-shaped beams to be connected so that a connecting member and a bolt do not protrude on both upper and lower surfaces of a connecting portion of the H-shaped steel beam. The purpose is to provide.

[0005]

The invention according to claim 1 is
A connecting device for connecting beams 11a and 11b made of H-shaped steel with flanges 13 and 14 formed at both upper and lower ends of a web 12, and concave grooves formed on both sides of the web 12 of the H-shaped beams 11a and 11b. The web piece 22 and the upper and lower flanges 1 that fit into the strips 20 and 20 and abut against the web 12 respectively.
A pair of upper and lower flange pieces 23 and 24 contacting the upper and lower flange pieces 23 and 24 are provided, and a pair of U-shaped connecting members 16 and 16 on both sides are provided. The connecting members 16 are fitted into the concave grooves 20 on both sides thereof so as to sandwich the portion T, and the web pieces 22 of the connecting members 16 and the webs 12 of the beams 11a and 11b are fitted. And are connected by bolts 17 passing therethrough.

According to a second aspect of the present invention, in the beam connecting device according to the first aspect, each connecting member 16 is provided with an H-shaped steel beam 11a, 11b.
The upper and lower flange pieces 23,
24 is the upper and lower flanges 13, 1 of the H-shaped steel beams 11a, 11b.
4 is formed so as not to protrude from the edge.

[0007]

FIG. 1 is a perspective view showing a state before connection of a beam connecting apparatus according to the present invention, FIG. 2 is a front view showing a state after connection, and FIG. 3 shows a state after connection. FIG. 4 is an enlarged vertical sectional view of the beam connecting device in a connected state. First, in FIG. 1, reference numeral 11a denotes a short split beam composed of an H-shaped steel beam having one end fixed to a required position on a side surface of a square steel column 10, and is welded in advance on the ground before the column 10 is erected. It is something. On the other end of the short split beam 11a, a long split beam 11b made of a similar H-shaped steel beam is provided.
The other end of the long split beam 11b is connected to the other end of the short split beam 11a, one end of which is previously fixed to the column 10 similar to the above, although not shown. It has become. 2 and 3 show the short split beam 1.
1 shows an example in which 1 a is fixed to each of three side surfaces of a rectangular steel column 10. Further, one end of each short split beam 11a is fixed by welding to a mounting board 19 welded to the side surface of the pillar 10.

1 to 4, reference numeral 16 denotes a pair of connecting members on both sides which are main components of the beam connecting device. Each connecting member 16 is provided on both sides of the web 12 of each of the H-shaped steel beams 11a and 11b. A web piece 22 that fits into each of the concave grooves 20 and 20 that abut on the web 12;
Upper and lower flange pieces 23 and 24 abut on upper and lower faces of upper and lower flanges 13 and 14 of 1a and 11b, respectively, and are formed in a U-shaped cross section. Bolt insertion holes 25 are formed in the web piece 22 at a constant pitch vertically and horizontally. For example, eight are provided.

As can be seen from FIG. 4, the upper and lower flange pieces 23 and 24 of the connecting members 16 are fitted in the concave grooves 20 of the H-shaped steel beams 11a and 11b, and the upper and lower flange pieces 23 and 24 are connected to the H-shaped steel beams 11a and 1b.
The upper and lower flanges 1b are formed so as not to protrude from the edges of the upper and lower flanges 13 and 14, respectively. When the upper and lower flange pieces 23 and 24 of the connecting member 16 protrude from the edges of the upper and lower flanges 13 and 14 of the beams 11a and 11b, the protruding portions act as obstacles and hinder the appearance of the appearance. Preferably, as shown in FIG.
1a, 11b, the ends of the upper and lower flange pieces 23, 24 of the connecting member 16 and the beams 11a, 1b are fitted in the groove 20.
It is preferable that the upper and lower flanges 13 and 14 of 1b are formed so as to be flush with the edges thereof.

Further, both H-shaped steel beams 11a,
As shown in FIG. 1, a bolt insertion hole 15 is provided at a connection end of the web 11 b at a position corresponding to a bolt insertion hole 25 provided in the web piece 22 of the connecting member 16.

Next, a method of connecting the H-shaped steel beams 11a and 11b by using the beam connecting device having the above structure, that is, a short H-shaped steel split beam 11a and a long split H-shaped steel beam 11b will be described.

As shown in FIG. 1, since the short H-shaped steel beam 11a is welded in advance to the required height of the column 10, the long H-shaped steel beam 11b is shorted by a crane or the like. Lifted to the same height as the H-shaped steel split beam 11a, the connecting end of the short split beam 11b is brought closer to the connecting end of the long split beam 11a, and the opposing end faces of both split beams 11a and 11b. Against each other.

Thus, both split beams 11 to be connected are
With the opposing end surfaces of a and 11b abutting on each other, a pair of left and right connecting members 16 and 16 are divided into beams 11a and 1 such that the abutting portion T (see FIGS. 2 and 3) is sandwiched from both left and right sides.
1b, the two connecting members 1
6, 16 web pieces 22, 22, both beams 11a, 1
1b, and the web pieces 22, 22 of both connecting members 16, 16 and the beams 11 are sandwiched in this state.
a and 11b with the webs 12 and
The bolts 17 penetrate through the bolts 5 and 15 and the nuts 18 screwed into the bolts 17 to fasten and connect,
As a result, the two split beams 11a and 11b are integrally joined. This joining state is shown in FIG.

On the upper surfaces of the beams 11a and 11b joined by the beam connecting device as described above, a joist 31 made of, for example, lip channel steel is provided on the beams 11a and 11b as shown by phantom lines in FIG.
a, 11b, and are arranged in a direction orthogonal to
The flooring board 33 is disposed on the top 1 via a plywood discarding material 32.

As described above, this beam connecting device is
With the opposing end faces of both beams 11a and 11b to be connected to each other, the pair of connecting members 16 and 16 are fitted to the concave grooves 20 and 20 of the beams 11a and 11b so as to sandwich the butted portion T from both sides. Then, the webs 12, 12 of both beams 11a, 11b are sandwiched by the web pieces 22, 22 of both connecting members 16, 16, and the web pieces 22, 22 of both connecting members 16, 16 and the web of both beams 11a, 11b are sandwiched. 1
2 and 12 are connected by bolts 17 and nuts 18 that penetrate through the beams 11a and 11b.
No connecting members or bolts protrude from the connecting portion, that is, the upper and lower surfaces of the butted portion T at all. Therefore, the appearance of the beams is not impaired, and the beams 11a, 11a as shown in FIG.
When the floor foundation is constructed by attaching the joists 31 on the base b, the entire upper surfaces of the beams 11a and 11b become flat surfaces.
The joist 31 can be accurately mounted, and the mounting work is facilitated.

The beam connecting device is an H-beam 11
a, a web piece 22 that fits into concave grooves 20, 20 formed on both sides of the web 12 and abuts the web 12, and upper and lower flanges 13, 14 of the H-shaped steel beams 11a, 11b. And a pair of connecting members 16 having upper and lower flange pieces 23 and 24 respectively contacting the upper and lower surfaces of the connecting member.
It is only necessary to bolt the web pieces 22 and 22 of the H-shaped steel beams 11a and 11b to the webs 12 and 12 of the H-shaped steel beams. , 11b can be greatly reduced.

[0017]

According to the beam connecting device of the first aspect of the present invention, with the opposed end faces of both H-shaped steel beams to be connected to each other, the concave grooves on both sides thereof sandwich the butted portion. Since the connecting members are fitted to each other, and the web pieces of both connecting members and the webs of both H-shaped steel beams are connected by bolts penetrating respectively, the connecting pieces are connected to the upper and lower surfaces of the connecting portion of the H-shaped steel beams. The projections of the members and bolts do not protrude at all, so the appearance is improved.In addition, when the joist is mounted on the beam and the floor foundation is constructed, the joist can be mounted accurately and the Mounting work becomes easy. Also,
In this beam connecting device, the web piece of the pair of connecting members and the H
Since the web of the shaped steel beam may be bolted to the web, only one third of the bolt needs to be tightened compared to the conventional device, and the connection work of the H-shaped steel beam can be performed efficiently in a short time.

[0018] As described in claim 2, each connecting member includes:
Since the upper and lower flange pieces are formed so as not to protrude from the edges of the upper and lower flanges of the H-shaped steel beam in a state where they are fitted into the concave grooves of the H-shaped steel beam, the appearance of the connection portion is improved. It looks better.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state before connection of a beam connection device according to the present invention.

FIG. 2 is a front view showing a state after connection of the beam connection device.

FIG. 3 is a plan view similarly showing a state after connection.

FIG. 4 is an enlarged vertical sectional view of the beam connection device in a connected state.

FIG. 5A is a perspective view showing a conventional beam connection device,
(B) is a longitudinal sectional view thereof.

[Explanation of symbols]

 11a One H-shaped steel beam to be connected 11b Other H-shaped steel beam to be connected 12 Web of H-shaped steel beam 13, 14 Upper and lower flanges of H-shaped steel beam 16 Connecting member 17 Bolt 20 H-shaped steel beam groove Article 22 Web piece of connecting member 23, 24 Flange piece of connecting member

Claims (2)

[Claims] 1. A beam connecting device made of an H-shaped steel having flanges formed at both upper and lower ends of a web, the fittings being fitted to concave grooves formed on both sides of the web of the H-shaped steel beam. A pair of U-shaped cross-section connecting members on both sides consisting of a web piece abutting on the web and an upper and lower flange piece abutting on the upper and lower flanges. A beam connecting device in which the connecting members are fitted into concave grooves on both sides so as to sandwich the connecting members, and the web pieces of both connecting members and the webs of both beams are connected by bolts penetrating respectively. 2. The connecting member is formed such that the upper and lower flange pieces do not protrude from the edges of the upper and lower flanges of the H-shaped steel beam in a state of being fitted into the concave grooves of the H-shaped steel beam. The beam connection device according to claim 1.