JPH09184237A - Manufacture of junction part of beam member for building structure, and beam member for building structure provided thereby - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for fabricating a novel junction part which is free of dust and noise generation and a junction part fabricated according to the method. SOLUTION: A bolt fastening hole 7 is furnished in a junction part of a beam member 1 for architectural structure, and the joining surface in the periphery of this hole 7 is provided with a plurality of ruling lines 9 by the laser processing so that the friction factor of the joining surface is increased. Also a bolt fastening hole 7 is furnished in a junction part of a beam member 1 for architectural structure, and the joining surface in the periphery of this hole 7 is provided with a plurality of ruling lines 9 by the laser processing so that the friction factor of the joining surface is increased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a joint portion of a beam member for a building structure and a beam member for a building structure having a joint portion manufactured by the method.

[0002]

2. Description of the Related Art Connection between a connecting member and a beam member of a building structure column is, for example, a box type column 51 as shown in FIG.
The upper and lower flanges and the web of the connection member 53 made of H-shaped steel directly welded to the H-shaped steel beam member 57 are joined by bolts and nuts using the splice plate 55.

[0003]

In the conventional connection between the connecting member and the beam member of the above-described conventional building structure column, the surface of the connecting member that contacts the splice plate and the portion that contacts the splice plate. In order to increase the frictional resistance of the surface of the beam member and improve the joint strength of the joint portion, these surfaces are sanded to manufacture.

The above-mentioned sanding process requires a lot of labor because it is manually performed, and a large amount of dust and noise are generated, which causes a problem in the working environment.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to prevent dust and noise from being generated in the production of a joint portion such as a beam member for construction or a joint member. Another object of the present invention is to provide a method for manufacturing a joint and a beam member for a building structure including the joint manufactured by the method.

[0006]

Means for Solving the Problems Claim 1 or Claim 2
The method for manufacturing a joint portion of a beam member for a building structure according to claim 1, wherein a bolt fastening hole is provided in the joint portion of the building structure beam member, and a scoring line by laser processing is provided on the joint surface around the bolt fastening hole. Is provided to increase the friction coefficient of the surface of the joint.

Therefore, when the scoring line is processed at the joint portion of the building structure beam member, the generation of dust and noise can be significantly reduced as compared with the conventional method.

In the building structure beam member according to the third or fourth aspect, since the scoring lines are formed by laser processing, it is easy to uniformly process the depth and pattern of the scoring lines and the joint portion. The quality is stable.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an example of the case where H-shaped steel is used as a beam member for building structure, and the upper and lower flanges 3 and webs 5 of the joint part of the building structure beam member 1 have a joint part and a joint. A plurality of fastening holes 7 are provided to fasten a member (not shown) via a splice plate (not shown) with bolts.

On the surface of the beam member 1 in contact with a splice plate (not shown), that is, on the surface side of the flange 3 on the side where the fastening hole 7 is provided in the beam member 1,
A grid-shaped scoring line 9 is put on both side surfaces of the web 5 by a laser processing device (not shown). It is desirable that the scoring line 9 has a depth at least as large as that of the conventional sanding process. That is, 0.2 mm to 0.5 mm
It is desirable to set the depth to some extent.

A known laser processing apparatus can be used as the laser processing apparatus for inserting the scoring line 9. However, if a laser processing apparatus capable of three-dimensional processing is used, the flange portion of H-shaped steel and The scoring line 9 can be efficiently put into both of the web portions without changing the attachment position of the workpiece. Since the scoring lines 9 are intended to increase the frictional resistance between the scoring lines 9 and the connecting member (not shown), the pattern of the scoring lines 9 is not limited to the lattice shape. It is easy to understand. For example, a wavy curve may be used instead of a straight line for the grid-shaped scoring lines.

[0012]

According to the method for manufacturing the joint portion of the beam member for a building structure according to claim 1 or 2, when the scoring line is formed on the joint portion, dust is generated as compared with the conventional method. The working environment is improved because the noise and noise can be significantly reduced. Further, it becomes easy to mechanize this processing step.

In the beam member for building structure according to claim 3 or 4, since the scoring lines are formed by laser processing, it is easy to uniformly process the depth and pattern of the scoring lines, and the joint portion. The quality is stable. Further, since mass production can be performed by high-speed processing, there is a possibility that the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a method for manufacturing a joint portion of a beam member for a building structure according to the present invention.

FIG. 2 is a diagram showing an example of a method of connecting a connection member and a beam member of a building structure column.

[Explanation of symbols] 1 Beam member for building structure 3 Flange 5 Web 7 Fastening hole 9 Scoring line

Claims (4)

[Claims] 1. A bolt-fastening hole is provided in a joint portion of a building structure beam member, and a plurality of scoring lines formed by laser processing are provided on a surface of the joint portion around the bolt-fastening hole, and a friction coefficient of the joint surface. A method of manufacturing a joint portion of a beam member for a building structure, which is characterized by increasing the following. 2. The method for manufacturing a joint portion of a building structure beam member according to claim 1, wherein the scoring lines are provided in a grid pattern. 3. A bolt fastening hole is provided in a joint portion of a building structure beam member, and a plurality of scoring lines by laser processing are provided on a joint surface around the bolt fastening hole, and a friction coefficient of the joint surface. A beam member for a building structure, which is characterized in that 4. The beam member for building structure according to claim 3, wherein the scoring lines are provided in a grid pattern.