JPH0717716Y2 - Jig for protecting joints in steel structure materials - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for protecting a joint portion in a steel structure material such as a pillar or a beam formed by combining steel plate materials.

[0002]

2. Description of the Related Art Conventionally, when constructing a steel structure, a large number of column members and beam members formed by welding a steel plate material cut into a predetermined size are welded. It is manufactured in advance in factories and manufacturing yards, and these pillars and beams are sequentially loaded into the construction site for assembly.

By the way, such a pillar or beam as a steel structure material is usually laid horizontally during storage after production or during stand-by for assembly at a construction site. A joint portion for joining the adjacent beam or column when assembled is attached to the end of the in advance.

If the joint portion comes into direct contact with the ground or the like when it is placed horizontally, the corner portion thereof is crushed or deformed by the concentrated load due to its own weight.
A steel jig A formed by fixing a die steel on a floor plate (see FIG. 4) set to a thickness of about 30 mm in m square and a plate material.
(See Fig. 5) or insert it between the ground and Fig. 6
A steel jig B as shown in (3) is attached to the joint with bolts for protection.

However, since the floor plate is simply laid with a plate material, it is often cracked or deformed by a concentrated load, so that it is worn out and needs to be prepared each time, and also when the steel jig A is placed horizontally. The positioning of the joint part and the floor plate at the time is complicated, and the work may be dangerous, and the steel jig B is used when the work for attaching and detaching the joint part to the joint part is complicated and there is no bolt insertion hole. In addition, it has been pointed out that various problems to be solved such as the fact that the joint portion is easily damaged due to the contact between the steel and the steel in such a steel jig.

[0006]

[Means for Solving the Problems] Therefore, in this invention,
A non-magnetic material such as an aluminum alloy is used to form a block-shaped main body with a curved bottom, and the block-shaped main body is supported by a notched inclined surface facing the vertical line at an angle of approximately 45 degrees. Using a jig that is provided with a portion and has a contact portion formed in a portion adjacent to and orthogonal to each of the notched inclined surfaces, and further disposing one or more magnetic bodies inside the contact portion. This makes it possible to easily and surely protect the joint portion of the steel structure material such as the pillar or the beam.

[0007]

[Operation] In the present invention, the jig itself is finished with the magnetic body of the abutting portion in a state where the support portion formed by the notched inclined surface formed in the jig and the corner portion of the joint in the steel structure material are aligned. Since it is attached to the mouth portion, it is easy to attach and detach, and it is possible to prevent damage to the joint portion during horizontal placement as much as possible.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a protective jig according to the present invention will be described below in detail with reference to the accompanying drawings.

Referring to FIG. 1, a protective jig 10 according to the present invention.
Consists of a block body 12 made of a lightweight and non-magnetic aluminum alloy, and the bottom portion of the block body 12 is formed into a rounded bottom portion 14 having a predetermined curvature,
On the other hand, the upper surface of the block main body 12 is cut out at an angle of about 45 degrees with respect to the perpendicular X to form a support portion 18 composed of inclined surfaces 16 and 16 facing each other. The magnet 22 is embedded and arranged inside the abutting portion 20 which rises and intersects at right angles.

In this case, the rising shape of the contact portion 20 is not limited to the mountain shape as shown in FIG.
It goes without saying that any suitable shape can be used as long as the magnet 22 can be arranged.

Further, in the present embodiment, only one magnet 22 is embedded inside the abutting portion 20, but when considering the case where there is a bolt insertion hole or the like in the joint portion to be protected, It is preferable that a plurality of magnets be appropriately separated and arranged so that the jig 10 can be more surely attached to the joint portion.

By using the thus constructed protective jig 10 according to the present invention, for example, a pillar material 2 as a steel structure material.
In order to protect the joint portion 26 of No. 4, when the column member 24 is hung by a crane or the like and placed horizontally, the block main body 1
The support portion 18 composed of the inclined surfaces 16 formed in 2
The magnet 22 may be aligned with the corners 26a, 26a of the predetermined joint portion 26, the magnet 22 may be brought into contact with the side surface of the joint portion 26, the protective jig 10 may be attached in advance, and the magnet 22 may be gently lowered onto the ground GL (Fig. 2 and FIG. 3). Since the protection jig 10 is made of an aluminum alloy that is softer than steel, the joint 26 is not damaged.

In addition, when protecting, even if the ground GL is slanted or the mounting state of the joint portion 26 is slightly slanted depending on the condition of the construction structure, the block body 12 becomes the rounded bottom portion 14. Therefore, there is no inconvenience, and the joint part can be protected appropriately.

Further, when the pillar member 24 is moved to the site for installation or assembling at the site, the pillar member 24 is lifted and held by a crane as it is, and the protection jig 10 is pulled against the magnetic force of the magnet 22. It can be removed and stored as appropriate.

[0015]

As described above, according to the protection jig of the present invention, it is possible to prevent the joint portion from directly contacting the ground or the like when the steel structure material is placed horizontally, so that the damage can be prevented. It can be blocked as much as possible.

Further, since the steel structure material can be easily attached to and detached from the joint part and can be attached in advance, complicated positioning is not required during the horizontal placement work. Therefore, the horizontal placement work can be made smooth and efficient. In addition, since a lightweight alloy is used as a material, it has various advantages such as easy and sure protection of the joint portion including handling, and its practical effect is extremely large.

Although the jig for protecting the joint portion of the column member has been described as a preferred embodiment of the protective jig according to the present invention, the present invention is not limited to this embodiment. Instead, it can be suitably used as a protection jig for corners of various steel structure materials, and further, various modifications can be made without departing from the spirit of the present invention.

[Brief description of drawings]

FIG. 1 is a perspective view showing a preferred embodiment of a protection jig for a joint portion in a steel structure material according to the present invention.

FIG. 2 is a front view for explaining the case where the protection jig shown in FIG. 1 is used to protect the joint portion of the pillar material as the steel structure material.

FIG. 3 is a partial cross-sectional side view of a protection state of the joint portion shown in FIG.

FIG. 4 is a perspective view showing a conventional relationship between a joint portion and a floor plate.

FIG. 5 is a perspective view showing a relationship between a conventional protection jig and a connection portion.

FIG. 6 is a side view showing a relationship between another conventional protection jig and a connecting portion.

[Explanation of symbols]

10 protection jig, 12 block body, 14 rounded bottom part, 16 inclined surface, 18 support part,
20 contact part, 22 magnet, 24 pillar material,
26 division,

Claims (1)

[Scope of utility model registration request] 1. A jig for protecting a joint portion in a steel structure material such as a column formed by combining steel plates, the block-shaped main body having a curved bottom surface using a non-magnetic material. The block-shaped main body is provided with a support portion composed of notched inclined surfaces facing each other at an angle of about 45 degrees with respect to a vertical line, and a contact portion is formed at a portion adjacent to and orthogonal to each notched inclined surface. Further, a jig for protecting a joint portion in a steel structure material, further comprising one or more magnetic bodies disposed inside the abutting portion.