JP3095134B2 - Jig for steel frame assembly - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for assembling a steel frame, and more particularly to a jig for assembling a steel frame to be fixed to a steel beam when the steel beam is joined to a steel column.

[0002]

2. Description of the Related Art A steel structure of a building is welded at a factory as shown in FIG.
A steel column 16a with welded beam connections 17a and 17b as shown in
16b and beams 20 are manufactured and assembled at the building site. In the construction site, the steel columns 16a and 16b are first erected and fixed at the construction site, and the beam 20 is transported by a crane to the beam columns 17a and 17b of the steel columns 16a and 16b.
17b, webs 18a, 18 at beam connections 17a, 17b
b and a splice plate (see reference numeral 24 in FIG. 10) is applied from both sides to the butted portion of the web 21 of the beam 20 and fixed with bolts. Then, the flanges 19a and 19c of the beam connections 17a and 17b are fixed.
And the beam flange 22a are joined by welding or the like to fix the beam to the beam connection.

However, the beam 20 is brought into contact with the beam connections 17a, 17b of the steel columns 16a, 16b, and a splice plate is applied from both sides to the butting portion of the beam connection and the web of the beam until the beam is fixed by bolts. Because it is still suspended in the state, it shakes even with a slight wind, so fixing the bolt with the splice plate on both sides while stopping this swing may cause the splice plate to be heavy, and the work place It was a very dangerous job because of the high altitude. Therefore, even when there is a slight wind, the work must be stopped, and the work efficiency is poor.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to make it possible to assemble a steel frame even in a state where it is impossible to assemble the steel frame due to wind in the conventional method. It is an object of the present invention to provide a jig for assembling a steel frame.

[0005]

In order to achieve the above object, in a jig for assembling a steel frame according to the present invention, a horizontal member such as a U-shape, an L-shape, a square shape, a square pipe, and the like, An L-shaped mounting member having a narrower width and provided with one or more female screws by directly welding a nut or the like to the horizontal portion, and screwing into the female screw provided on the mounting member.
More than one head is composed of hexagonal mounting bolts,
Welding, bolts, welding and bolts, etc. on the upper inside of the vertical part of the L-shaped mounting member so that the horizontal member protrudes on at least one side, that is, on both sides, the beam connection side of the steel column when used. It is to be fixed.

In order to achieve the above object, a jig for assembling a steel frame according to the present invention has a U-shaped section,
A horizontal member such as a shape, a square, a square pipe, and a U-shape that is narrower than the horizontal member and has at least one female screw provided in the lower horizontal portion by welding a nut directly to the horizontal portion A mounting member and one or more heads screwed into the female screw are formed of hexagonal mounting bolts, and the horizontal member has at least one side, that is, both sides, and at least a beam connection side of a steel column when used. It is to be fixed to the inside of the upper part of the vertical portion of the U-shaped mounting member by welding, bolts, welding and bolts, etc. so as to protrude.

In order to achieve the above object, in a jig for assembling a steel frame according to the present invention, the horizontal member of the jig for assembling a steel frame is attached to an L-shaped mounting member or a U-shaped mounting member, or to a lower surface thereof. A projection such as a plate, a strip, or the like having a columnar, prismatic, or quadrangular cross section is provided, and if necessary, the projection is provided on the opposite side of the L-shaped mounting member or the U-shaped mounting member. In other words, an inclined surface is provided so as to approach the L-shaped mounting member or the U-shaped mounting member.

Further, in order to achieve the above object, in the jig for assembling a steel frame of the present invention, a jig for fixing a jig for a steel frame is provided between a beam of a steel frame for fixing the jig for a steel frame and a bolt for mounting the jig for a steel frame assembly. Put a protective plate that protects the steel beams by inserting them, that is, to protect the beams from the traces of the mounting bolts or to prevent the parts from being greatly distorted. That is, it is fixed to the attachment member of the jig for assembling the steel frame of the present invention by a string-like body.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a jig for assembling a steel frame according to a first embodiment of the present invention, FIG. 2 is a right side view of FIG. 1, FIG. 3 is a perspective view of FIG. FIG. 5 is a perspective view of a modification of the one shown in FIG.
FIG. 6 is a perspective view of the one shown in FIG.
5 is a right side view of the one shown in FIG. 5, FIG. 7 is a perspective view of the one shown in FIG. 1 provided with plate-like projections, and FIG. 8 is a perspective view of another modified one of the one shown in FIG. It is. The jig 1a for assembling a steel frame according to the first embodiment of the present invention includes a horizontal member 2a having a U-shaped cross section as shown in FIGS. 1 to 3, and a width smaller than the horizontal member 2a, and L-shaped mounting member 3a provided with female screws 7a and 7b by welding two nuts to horizontal portion 4a
And screwed into female screws 7a and 7b provided on this mounting member.
Bolts 8a, 8b and nuts 9a, 9b and fixed by welding to the inside of the upper part of the vertical portion 5a of the L-shaped mounting member 3a so that the horizontal member 2a protrudes on both sides. Is what is being done.

A horizontal member 2a having a U-shaped cross section of the jig 1a for assembling a steel frame is manufactured by bending a steel plate twice.
Any shape may be used as long as it can be used in a channel shape by rolling, manufactured by welding, or the like, and has a U-shaped cross section and a sufficient strength. The mounting member 3a having an L-shaped cross section is
The cross section of a product manufactured by bending a steel plate, a product formed into an angle by rolling, a product manufactured by welding, etc. is L
Any shape can be used as long as the shape can withstand use.

The length of the horizontal member 2a of the jig 1a for assembling a steel frame according to the first embodiment of the present invention shown in FIGS. 1 to 3 is the same on both sides, but is shown in FIGS. 4a and 4b. As mentioned above, one can be shortened. One having the same length on the left and right as in this embodiment can be used at the four corners of the beam 20 as one type (see FIG. 9), but there is a problem that one becomes heavy. It is necessary to prepare two types of the one shortened, one with the left side shortened and the other with the right side shortened, but there is an advantage that the weight of one is reduced. A female screw provided on the horizontal portion 4a of the mounting member 3a
In FIGS. 6a and 6b (not shown), nuts to be screwed to the mounting bolts 6a and 6b are fixed below the horizontal portion 4a by welding as shown in FIG. It can be provided fixedly by welding on 4a, or can be provided directly on the horizontal portion 4a. Although the number is two, it can be increased or decreased as needed.

Although the number of the mounting bolts 6a and 6b of the steel frame assembling jig 1a is two, it can be increased or decreased as necessary similarly to the female screw. Also this mounting bolt
The heads of 6a and 6b are hexagonal, but they can also be dials, triangles, butterflies, etc., so that they can be turned with bare hands.
Also, this steel assembly jig 1a is fixed to the horizontal member 2a by mounting members 3a bolts 8a, 8b and nuts 9a, 9b and welding, but when the beam 20 is light, the bolts 8a, 8b and nut 9a ,
9b or can be fixed by welding alone.

As shown in FIGS. 5 and 6, both ends of the horizontal member 2a or one end of the horizontal member 2a when one of the horizontal members 2a is short, and the lower portion are provided at the lower end of the jig 1a. To the bolts 11a, 11b and nut 12a.
, 12b and / or by welding. The shape of the projection may be a quadrangular prism as shown in these figures, or a horizontally long plate as shown in FIG.
Other shapes such as a columnar shape may be used. Also this projection 10
At the tip of the a and 10b, an inclined surface 13 is provided on the side opposite to the L-shaped mounting member 3a so as to approach the mounting member 3a as it goes down. It is preferable that 20 is located at a predetermined position. Further, as shown in FIG. 8, the steel assembling jig 1a of the present invention includes a steel assembling jig using a flexible plate 15 such as a wire, a wire or a chain. Mounting members
It can be attached to 3a.

Next, a method of using the jig 1a for assembling a steel frame according to the present invention will be described with reference to FIGS. 9, 10, and 2. FIG. Before assembling the steel frame, that is, at the site where the beam was manufactured or before lifting it with a crane, the jig 1a for assembling the steel frame of the present invention at the site.
As shown in FIG. 9, the horizontal member 2a projects from the four corners of the flange 22a of the
A protective plate (not shown) is sandwiched between 22a and the mounting bolts 6a and 6b, and the mounting bolts 6a and 6b are tightened and fixed. Then, after erecting the steel columns 16a and 16b, the beam 20 is lifted by a crane and the beam connection 17a of the steel columns 16a and 16b is
When lowered between 17b, flanges 17a of beam connections 17a and 17b
, 19c on the horizontal member 2 of the steel assembly jig 1a of the present invention.
The projecting portion of a is mounted as shown in FIG. 10, and the beam 20 is supported. In this state, the splice plate 24 is applied to the butted portions of the webs 18a and 21 and 18b and 21 from both sides, and is fixed with bolts to fix the beam 20 to the beam connections 17a and 17b. Then, the mounting bolts 6a and 6b are loosened, the jig 1a for assembling the steel frame is removed, and the jig 1a is lowered and used again.

FIG. 11 is a perspective view of a jig for assembling a steel frame according to a second embodiment of the present invention, FIG. 12 is a right side view of FIG. 11, and FIG. FIG. 14 and FIG. 14 are perspective views of a modified version of the one shown in FIG. 11 and provided with columnar projections. The jig 1b for assembling a steel frame according to the second embodiment of the present invention
As shown in FIG. 12, the jig for assembling the steel frame of the first embodiment
A horizontal member 2b having an L-shaped cross section is used instead of the horizontal member 2a having a U-shaped cross section 1a.

The horizontal member 2b of the steel assembly jig 1b includes:
Any steel plate manufactured by bending the steel plate once, formed into an L-shape by rolling, manufactured by welding, or the like may be used as long as it has an L-shaped cross section and the strength can be used. As shown in FIGS. 13 and 14, the jig 1b for assembling the steel frame includes projections 10a,
10b can be provided, or the protection plate can be attached to the attachment member 3a of the jig for assembling a steel frame with a cord-like body. Further, the steel frame assembling jig 1b can be modified in the same manner as in the first embodiment, or can be used in the same manner as in the first embodiment.

FIG. 15 is a perspective view of a jig for assembling a steel frame according to a third embodiment of the present invention, and FIG. 16 is a right side view of FIG. The steel frame assembling jig 1c of the third embodiment of the present invention is a horizontal member having a square cross section instead of the U-shaped horizontal member 2a of the steel frame assembling jig 1a of the first embodiment. 2c, which can be used in the same manner as the steel assembly jig 1a of the first embodiment. The horizontal member 2c having a square cross section of the steel frame assembling jig 1c may be, for example, a cut square steel material, and may have a rectangular cross section and a strength that can withstand use. This jig 1c for assembling steel
The jig 1a for assembling the steel frame according to the first embodiment can be modified in the same manner as the first embodiment, and the horizontal member 2c can be provided with a projection similar to that of the first embodiment. Further, a protection plate can be attached similarly to the first embodiment.

FIG. 17 is a perspective view of a jig for assembling a steel frame according to a fourth embodiment of the present invention, and FIG. 18 is a side view of the jig of FIG. Fourth Embodiment A jig for assembling a steel frame according to a fourth embodiment of the present invention
1d is a horizontal member 2a having a U-shaped cross section as shown in FIGS. 17 and 18, and a lower horizontal portion having a width smaller than that of the horizontal member 2a.
A U-shaped mounting member 3b provided with female screws 7a and 7b by welding two nuts to 4a, and two mounting bolts 6a and 6b screwed to the female screw provided on the mounting member 3b. The horizontal member 2a is fixed to the U-shaped mounting member 3b by bolts 8a and 8b and nuts 9a and 9b inside the upper portion of the vertical portion 5b so that the horizontal member 2a projects to both sides.

The mounting member 3b having a U-shaped cross section of the jig 1d for assembling a steel frame is formed by bending a steel plate twice, manufacturing it into a channel by rolling, or manufacturing it by welding. May be used as long as it has a U-shape and the strength withstands use. Mounting member on horizontal member 2a of the present invention
The method of fixing 3b may be fixed by bolts 8a, 8b and nuts 9a, 9b and welding, but since the horizontal member 2a is supported by the upper horizontal portion 4b, the bolts 8a, 8b and nut 9a, 9b
The bolts 8a, 8b and nuts 9a, 9b
Alternatively, welding alone may be used. Also, this steel assembly jig
1d, one of the horizontal members 2a can be shortened as shown in FIGS. 4a and 4b, and the horizontal member 2a can be provided with a projection similar to that of the first embodiment. Further, a protection plate can be attached in the same manner as in the first embodiment. Also, this steel assembly jig
1d can be deformed similarly to the steel assembly jig 1a of the first embodiment, and can be used similarly to the steel assembly jig 1a of the first embodiment.

FIG. 19 is a perspective view of a jig for assembling a steel frame according to a fifth embodiment of the present invention, and FIG. 20 is a right side view of the jig of FIG. A jig for assembling a steel frame according to a fifth embodiment of the present invention
1e, a horizontal member 2b having an L-shaped cross section is used instead of the horizontal member 2a having a U-shaped cross section of the steel assembly jig 1d of the fourth embodiment as shown in FIGS. 19 and 20. It was what was. The jig 1e for assembling a steel frame can be provided with a projection similar to that of the first embodiment on the horizontal member 2b, and a protective plate can be attached similarly to the first embodiment. it can. Further, the steel frame assembling jig 1e can be deformed in the same manner as the steel frame assembling jig 1a of the first embodiment, and can be further modified with the steel frame assembling jig 1a of the first embodiment. It can be used as well.

FIG. 21 is a perspective view of a jig for assembling a steel frame according to a sixth embodiment of the present invention, and FIG. 22 is a right side view of the jig of FIG. As shown in FIGS. 21 and 22, a steel assembly jig 1f according to the sixth embodiment of the present invention is a horizontal member having a U-shaped cross section of a steel assembly jig 1d according to the fourth embodiment. Instead of 2a, a horizontal member 2c having a rectangular cross section is used. This steel frame assembling jig 1f can be provided with a projection similar to that of the first embodiment on the horizontal member 2c,
Further, a protection plate can be attached similarly to the first embodiment. Also, this steel assembly jig 1d
The jig 1a for assembling steel frames according to the first embodiment can be modified in the same manner as the jig 1a for assembling steel frames according to the first embodiment, and can also be used similarly to the jig 1a for assembling steel frames according to the first embodiment.

In the jig for assembling a steel frame according to the above-described embodiment, the horizontal member has a U-shaped, L-shaped or square cross section, but the horizontal member may be formed into another shape such as a square pipe. . The present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention.

[0023]

According to the present invention, the following excellent effects can be obtained by using the above-described jig for assembling a steel frame. (1) By using this jig for assembling steel frames, work can be performed even if work cannot be performed due to the conventional wind. (2) The structure is simple, there is little failure, and it can be easily attached to and detached from the beam. (3) High-strength products can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a front view of a jig for assembling a steel frame according to a first embodiment of the present invention.

FIG. 2 is a right side view of the one shown in FIG.

FIG. 3 is a perspective view of what is shown in FIG.

FIG. 4 is a perspective view of a modification of the one shown in FIG.

FIG. 5 is a perspective view of the one shown in FIG. 1 provided with a columnar protrusion.

FIG. 6 is a right side view of the one shown in FIG. 5;

FIG. 7 is a perspective view of the one shown in FIG. 1 provided with a plate-like projection.

FIG. 8 is a perspective view of another modification of the one shown in FIG.

FIG. 9 is a perspective view illustrating a method of using the jig for assembling a steel frame according to the present invention.

FIG. 10 is a perspective view for explaining a method of using the jig for assembling a steel frame of the present invention.

FIG. 11 is a perspective view of a jig for assembling a steel frame according to a second embodiment of the present invention.

FIG. 12 is a right side view of the one shown in FIG. 11;

FIG. 13 is a perspective view of the one shown in FIG. 11 with columnar projections provided.

FIG. 14 is a perspective view of a modification of the arrangement shown in FIG. 11 in which columnar projections are provided.

FIG. 15 is a perspective view of a jig for assembling a steel frame according to a third embodiment of the present invention.

FIG. 16 is a right side view of the one shown in FIG. 15.

FIG. 17 is a perspective view of a jig for assembling a steel frame according to a fourth embodiment of the present invention.

18 is a right side view of what is shown in FIG.

FIG. 19 is a perspective view of a jig for assembling a steel frame according to a fifth embodiment of the present invention.

20 is a right side view of the one shown in FIG. 19.

FIG. 21 is a perspective view of a jig for assembling a steel frame according to a sixth embodiment of the present invention.

FIG. 22 is a right side view of the one shown in FIG. 22.

FIG. 23 is a perspective view for explaining a conventional steel frame assembling method.

[Explanation of symbols]

 1a to 1f Jig for assembling steel frame according to the third embodiment of the present invention 2a to 2c Horizontal members 3a, 3b Mounting members 4a, 4b Horizontal portions 5a, 5b Vertical portions 6a, 6b Mounting bolts 7a, 7b Female screws 8a, 8b , 11a, 11b Bolts 9a, 9b, 12a, 12b Nuts 10a, 10b Protrusions 13 Inclined surface 14 Protective plate 15 Strings 16a, 16b Steel columns 17a, 17b Beam connections for steel columns 18a, 18b Beam connections for steel columns Webs 19a, 19b, 19C, 19d Flange of beam connection of steel column 20 Beam 21 Beam of web 22a, 22b Flange of beam 23 Bolt hole 24 Splice plate

Claims (7)

(57) [Claims] 1. An L-shaped mounting member (3a) having a horizontal member (2a to 2c), a width smaller than the horizontal member, and having a female screw (7a, 7b) in a horizontal portion (4a). Mounting bolts (6a, 6b) screwed into female threads provided on the member, and the vertical portion (5a) of the L-shaped mounting member (3a) such that the horizontal members (2a to 2c) protrude to at least one side. A jig for assembling a steel frame, the jig being fixed to the inside of the upper part of (). 2. A horizontal member (2a to 2c), a U-shaped mounting member (3b) having a width smaller than that of the horizontal member and provided with female threads (7a, 7b) in a lower horizontal portion (4a), Mounting bolts (6a, 6b) screwed into female threads provided on the mounting member, and the U-shaped mounting member (3b) such that the horizontal members (2a to 2c) protrude to at least one side. Vertical part of (5b)
A jig for assembling a steel frame, wherein the jig is fixed to an upper inside of the steel frame. 3. The horizontal member has a U-shaped cross section.
3. The jig for assembling a steel frame according to claim 1, wherein the jig is a member of a shape, a square or a square pipe. 4. An L-shaped mounting member (3a) for said horizontal member.
4. A steel frame assembly according to claim 1, wherein a projection (10a to 10d) projecting downward is provided on a side surface or a lower surface of the U-shaped mounting member (3b). Jig. 5. The projection (10a to 10d) having a columnar shape (10a, 10a).
The jig for assembling a steel frame according to claim 4, wherein the jig is in the form of 10b) or a plate (10c, 10d). 6. The L-shaped mounting member (3) is located on the side opposite to the L-shaped mounting member (3a) or the U-shaped mounting member (3b) of the projections (10a to 10d).
The jig for assembling a steel frame according to claim 4 or 5, wherein an inclined surface (13) is provided so as to approach a) or a U-shaped mounting member (3b) side. 7. A steel beam (20) for mounting the steel assembly jig and a mounting bolt (6) of the steel assembly jig.
a, a protection plate (14) for protecting the steel beam (20) inserted between the jig and the jig for assembling the steel frame with a flexible cord (15). The jig for assembling a steel frame according to any one of claims 1 to 6.