JP3216647U - Steel structure unit joint member protection jig - Google Patents

Abstract

Provided is a protective jig capable of improving the protection and workability of a joint member and a mounting surface during a horizontal installation operation of a steel structure unit to which the joint member is welded. A protective jig 3 for a joint member 2 used when a steel structure unit 1 in which a joint member is welded to a steel structure member is placed on a placing surface 6, the protective jig 3. 3 is a disk or columnar shape with a bolt through hole in the center, and is attached to the flange by tightening the bolt nut using any one of the beam connection bolt holes 2g provided on the flange of the joint member 2 It is fixed. [Selection] Figure 1

Description

  The present invention relates to a jig for protecting a joint member and a placing surface of a steel structure unit composed of a square steel pipe, an H-shaped steel or the like.

  Steel structure members used in steel structures and the like are manufactured in advance at a predetermined unit in a factory or production yard, etc., but a joint member for adding beam materials is welded to this steel structure unit. There are many things attached by. Since such steel structure units with joint members are long, they are usually temporarily placed horizontally using a crane or the like on the floor surface of the factory floor, outdoor ground, or construction site after production or movement. However, due to the structure of the steel structure unit, the tip of the joint member comes into direct contact with the placing surface in a state where the entire weight of the steel structure unit is intensively loaded. For this reason, at the time of horizontal installation work of the steel structure unit, the operator must place a lumber or a curing member called a phosphorus tree on the mounting surface to protect the sealing member or the mounting surface. It is placed according to the position where it touches.

Japanese Utility Model Publication No. 5-92346

  As described above, in the horizontal installation work of the steel structure unit, the operator must adjust the position of each joint member in order to protect the joint member and the mounting surface of the steel structure unit. In addition to the work of arranging a plurality of curing members on the mounting surface, the workability was extremely poor due to the necessity of careful work for handling heavy objects. In addition, since the installation of the apple tree on the joint member requires a high space, it is usually carried out in two stages by stacking the apple tree on the web of the joint member. There is also a problem that the web is deformed because the web is overloaded.

  Moreover, although the protection jig | tool as described in patent document 1 is devised, although it is effective in the protection improvement of a floor surface or a joint member, it has not reached the solution of the problem of workability | operativity improvement.

  An object of the present invention is to provide a protective jig capable of improving both the protection of the joint member and the mounting surface and the workability during the horizontal installation of the steel structure unit to which the joint member is welded.

  In order to achieve the above-mentioned object, the joint member protection jig of the present invention is a disk or a columnar shape having a bolt through hole in the center, and a beam connection bolt hole provided in the flange of the joint member. It is characterized by being fixed to the flange by bolt and nut tightening using any one of the above.

  The joint member protection jig of the present invention uses a bolt hole that is closest to the flange mounting surface of each of the joint members adjacent to the mounting surface when the steel structure unit is placed horizontally after production. Once installed and fixed, the protective jig moves with the joint member during the subsequent horizontal installation of the steel structure unit. There is no need to place multiple members on the mounting surface, and the protective jig is a disk or cylinder and the outer diameter end surface is chamfered, so it can be mounted stably regardless of the inclination of the mounting surface or the unevenness of the surface. Can be placed. For this reason, the workability can be greatly improved together with the protection of the joint member and the placing surface, and further, the web can be prevented from being deformed because the placing load is applied to the flange.

It is a figure which shows the side of the steel structure unit which attached and fixed the protection jig concerning this invention. It is a figure which shows the enlarged view of the AA arrow of FIG. It is a perspective view of the joint member of the steel structure unit before attaching the protection jig concerning the present invention. It is a figure which shows an example of the placing state of the conventional steel structure unit with a fitting member.

Hereinafter, an embodiment of a steel structure unit joint member protecting jig according to the present invention will be described with reference to FIGS.
In FIG. 1, reference numeral 1 denotes a steel structure unit in which a H-shaped steel joint member 2 (2a to 2d) is welded to a square steel pipe 1a cut to a predetermined length. As shown in FIG. 3, the joint member 2 is composed of a flange 2e and a web 2f, and both the flange 2e are provided with a plurality of beam connecting bolt holes 2g. In addition, a plurality of joint members 2 are often welded to both ends of the steel structure unit 1. When the steel structure unit 1 is temporarily placed in another place after the production of the steel structure unit 1, it is horizontally placed on the normal placing surface 6 because it is long. The
In addition, this figure has shown the state in which the steel structure unit 1 or the square steel pipe 1a was placed horizontally in parallel with the placing surface 6 for the sake of simplification.

Conventionally, when the steel structure unit 1 is placed horizontally, the apple tree 5 is applied to the web 2f of the splicing member 2 in two layers as shown in FIG. The reason why the two layers are stacked is to secure a height space with the placing surface 6 so that the flange 2e does not contact the placing surface 6.
The present invention is characterized in that the protective jig 3 is used in place of the use of the phosphorus tree 5, but as shown in FIG. 1 or FIG. It is made to fix to the flange 2e of 2b by bolt and nut fastening, respectively. As a result, when the steel structure unit 1 is moved or placed horizontally, the protective jig 3 is integrated with the steel structure unit 1, so that the ring wood 5 is attached to the joint members 2a and 2b each time the work is performed. There is no need to place it according to the position of the flange 2e, and the workability is greatly improved.

  If the protective jig 3 is fixed to the flange 2e of the joint member 2a, 2b by tightening the bolt and nut using the bolt hole 2g of the flange 2e located closest to the placing surface 6 as described in claim 2 What is necessary is just to manufacture with the minimum outer diameter dimension which the corner | angular part of the flange 2e does not touch the mounting surface 6, and it can aim at reduction of manufacturing cost and the attachment work to the flange 2e.

  As shown in FIG. 2, the bolts and nuts of the protective jig 3 are tightened using bolts and nuts 4 for attaching the protective jigs. The protective jig 3 and the flange 2e are fastened together.

  If the outer diameter end face of the protection jig 3 is rounded as described in claim 4, it is concentrated on the placement surface 6 even when the protection jig 3 is in contact with the placement surface 6 with an inclination. Since the load can be prevented, it is possible to protect the placing surface 6 and prevent the end surface of the protective jig 3 from being worn. In addition, it may replace with a rounded chamfer and an end surface may be made into a full round shape.

  The material of the protective jig 3 is generally steel in consideration of manufacturing cost and strength, but a light and high-strength member such as a new carbon-based material may be used. Further, a soft material may be attached to the outer periphery of the protective jig 3 to protect the placing surface 6.

DESCRIPTION OF SYMBOLS 1 Steel structure unit 2 Joint member 2a, 2b, 2c, 2d Joint member 2e Flange 2f Web 2g Flange bolt hole 3 Protection jig 3a Bolt through hole 4 Bolt nut for protection jig installation 5 Rinki 6 Placement surface

Claims (4)

A protective jig for a joint member used when a steel structure unit in which a joint member is welded to a steel structure member is horizontally placed on a placing surface,
The protective jig is a disk or columnar shape provided with a bolt through hole at the center, and the bolt is tightened with a bolt and nut using any one of the beam connection bolt holes provided on the flange of the joint member. A protective jig for a steel structure unit joint member, wherein the jig is fixed to a flange.   The protective jig according to claim 1 is fixed to the flange by using a bolt hole of the flange located closest to the mounting surface. Ingredients.   The steel structure unit according to claim 1 or 2, wherein when there are a plurality of joint members close to the mounting surface, the protective jig according to claim 1 or 2 is fixed to the flange. Protective jig for the splice member.   The protective jig for a steel structure unit joint member according to any one of claims 1 to 3, wherein the outer diameter end face of the protective jig is rounded.

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