KR20030019806A - Joist Web Punch Stiffener used in Light Gauge Steel Framing - Google Patents

Abstract

PURPOSE: A stiffener for a joist of a steel house is provided to improve structural efficiency of a joist and to prevent the damage of a pipeline. CONSTITUTION: The stiffener(30) for a joist of a steel house comprises: a stiffening plate(31) provided with a penetration space(32) for letting a pipeline pass through; and a guide part(33) protruding from the border of the penetration space(32), having the appropriate shape to be fitted to the perforated part of a web and guiding the pipeline to be interposed smoothly.

Description

Reinforcement to reinforce perforated joist of steel house {Joist Web Punch Stiffener used in Light Gauge Steel Framing}

The present invention relates to a reinforcing material, and more particularly, to a reinforcing material for reinforcing the perforated portion of the floor joist which is a horizontal material used in the steel house constituting the frame of the building made of cold forming steel.

1 is a perspective view of a conventional rib c-beam, and FIG. 2 is a schematic diagram of a bottom frame using a joist. As shown in FIG. 1, a typical lip c-shaped steel 10 consists of a flange 11, a web 12, and a lip 13. The lip c-shaped steel 10 is molded to a thickness of about 1.0 mm to 2.0 mm by a cold forming method and is used to manufacture a building, and is generally widely used in steel houses.

As shown in FIG. 2, the rib c-shaped steel 10 is divided into a stud 14 when used as a vertical member receiving a load capacity, and a joist 15 when used as a horizontal member. After constructing the entire frame consisting of walls, floors, and roofs with thin lightweight steel such as lip c-shaped steel 10, the entire building is completed by attaching a finishing material such as plywood and gypsum board.

In such a building, pipes required for the facility are installed through the frame. In general, electrical wiring and pipes are installed on the wall, and drain pipes and ventilation holes are installed on the floor. In order for such wiring or piping 20 to pass through, the web portion of the joist 15 should be generally punched as shown in FIG. 3. According to the current structural performance, the punching size may be up to 40 mm without reinforcement. Do.

However, since bottom piping generally has a diameter of 100 mm or more, the web portion of the joist 15 must be drilled to a larger size accordingly. Therefore, the perforated part must be reinforced. However, even though most steel house sites have to be reinforcement like this, many problems are caused by not reinforcing. In particular, there is a possibility that the cross-sectional performance is significantly lower structurally collapsed when concrete is poured on top.

Therefore, conventionally, as shown in FIG. 4, after cutting a part of the joist to drill holes in the web portion to make the reinforcing material 21, the reinforcing material 21 is opposed to the web of the perforated joist 15. The punched part is reinforced by tightening with a screw or the like. However, this method is not only workability is reduced because the reinforcing material 21 is to be made by cutting a part of the joist in the field and then drilling a hole in the web part, and the operator can cut both ends of the reinforcing material 21 sharply. There is a risk of injury, and because the perforated portion is sharp, there is a risk of damage to the pipe 20 penetrating there. In order to prevent damage to the pipe 20, a separate safety measure is taken, such as installing a separate rubber stopper on the perforated portion of the reinforcing material 21.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, by forming a predetermined thickness to reinforce the function to improve the structural performance of the joist, by forming a smooth guide portion for guiding the pipe The purpose is to provide a reinforcement that can prevent damage.

1 is a perspective view of a conventional rib c-beam,

Figure 2 is a schematic diagram of the bottom frame using a joist,

3 is a perspective view showing a state in which the pipe is installed in the perforated joist,

4 is a perspective view showing a conventional method of reinforcing a perforated joist,

5 is a perspective view showing the shape of the reinforcing material to reinforce the perforated joist of the steel house according to an embodiment of the present invention,

FIG. 6 is an exploded perspective view illustrating a process in which the reinforcement shown in FIG. 5 is installed in a perforated joist,

7 is a perspective view illustrating a state in which the reinforcement shown in FIG. 5 is installed in a perforated joist,

FIG. 8 is a cross-sectional view taken along the line A-A of FIG. 7.

♠ Explanation of symbols on the main parts of the drawing ♠

15: Joist 20: Piping

30: reinforcing material 31: reinforcing plate

32: through space 33: guide portion

According to the present invention for achieving the above object, in the reinforcement for reinforcing the perforated portion of the web to be perforated so that the pipe can be installed through the joist used in the steel house constituting the frame of the building, the pipe is to pass through A reinforcing plate having a predetermined thickness having a through space having a size that can be formed in the center portion; Protruding in one direction from the edge of the through space has a shape suitable for fitting to the perforated portion of the web, characterized in that it comprises a guide for guiding the smooth insertion of the pipe.

In the following, with reference to the accompanying drawings a preferred embodiment of the reinforcing material to reinforce the perforated joist of the steel house according to the present invention will be described in detail.

5 is a perspective view showing the shape of the reinforcing material to reinforce the perforated joist of the steel house according to an embodiment of the present invention.

As shown in FIG. 5, the reinforcement material 30 of the present invention includes a reinforcement plate 31 having a predetermined thickness to function as a reinforcement function. The center portion of the reinforcing plate 31 is formed with a through space 32 of a size through which the pipe 20 can be penetrated, and the edge of the through space 32 is formed to protrude in one direction. The smooth guide part 33 which guides the piping 20 to penetrate is formed.

The reinforcing plate 31 of the present invention is made of a galvanized steel sheet having a thickness of about 2.0 mm to 3.0 mm, which usually has the same strength as the joist 15. The through space 32 and the guide portion 33 form a through hole in the central portion of the reinforcing plate 31, and then push the edge of the through hole in either direction to reinforce the plate 31. The same smooth guide portion 33 as the surface of the to form a through space 32 accordingly.

The reinforcing material 30 of the present invention configured as described above is manufactured in a factory, and the reinforcing plate 31 is formed to a thickness capable of reinforcing function, so that the structural performance of the joist 15 is improved, and the guide part 33 is provided. Is formed smoothly to prevent damage to the pipe.

FIG. 6 is an exploded perspective view illustrating a process in which the reinforcement shown in FIG. 5 is installed in the perforated joist, and FIG. 7 is a perspective view illustrating a state in which the reinforcement shown in FIG. 5 is installed in the perforated joist, and FIG. It is sectional drawing cut along the line AA of 7.

6 to 8, in order to reinforce the perforated joist 15 using the reinforcing material 30 of the present invention, the guide portion of the reinforcing material 30 in the perforated portion sized to the field conditions ( 33), the reinforcing surface 31 is in close contact with the web of the joist (15). Then, the reinforcing material 30 of the present invention is fixed to the web of the joist 15 by fastening the edge portion of the reinforcing surface 31 and the web of the joist 15 that abuts therewith with a screw or the like. In this way, when the reinforcing material 30 is fixed to the web of the joist 15, the pipe 20 is installed through the through space 32 of the reinforcing material 30.

As described in detail above, the reinforcing material for reinforcing the perforated joist of the steel house of the present invention is formed to a thickness such that the reinforcing plate can function as a reinforcing function, thereby improving the structural performance of the joist, and smoothly forming the guide part to damage the pipe. It is effective in preventing.

In addition, the reinforcing material of the present invention has the effect of increasing the work efficiency because the bonding process is simple.

Although the technical details of the reinforcing material for reinforcing the perforated joist of the steel house of the present invention have been described with the accompanying drawings, this is illustrative of the best embodiment of the present invention and is not intended to limit the present invention.

In addition, it is obvious that any person skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Claims (2)

In the reinforcement to reinforce the perforated portion of the web to be drilled so that the pipe can be installed through the joist used in the steel house constituting the frame of the building A reinforcing plate having a predetermined thickness having a through space having a size through which the pipe can pass; A reinforcing material for reinforcing the perforated joist of the steel house, characterized in that it protrudes in one direction from the edge of the through space to fit into the perforated portion of the web, and comprises a guide for guiding the smooth insertion of the pipe. . 2. The reinforcement of claim 1, wherein the reinforcement plate is made of a galvanized steel sheet having a thickness of 2.0 mm to 3.0 mm.