JPH04103917U - Steel hole reinforcement material - Google Patents

Abstract

(57) [Summary] [Purpose] To simplify the reinforcement work and shorten the welding length to shorten the on-site construction time when reinforcing the area around piping and wiring holes installed in steel frames such as beams. In addition, the same steel frame can be used for various types of beams. [Structure] A steel frame hole reinforcement member 1 consisting of a sleeve portion 2 and a flange portion 3 on its outer periphery is integrally formed of welded structural cast steel or the like. During construction, insert the sleeve part 2 of the steel frame hole reinforcement material 1 into the hole 5 provided in the web 4a of the steel frame 4,
The flange portion 3 is placed along the surface of the web 4a. In this state, the inner periphery of the hole 5 of the web 4a and the outer periphery of the sleeve portion 2 are welded.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea is based on holes for piping and wiring in steel beams in buildings, residences, factories, etc. This relates to steel frame hole reinforcing materials for reinforcing steel frame holes.

0002

[Conventional technology]

Traditionally, electrical wiring and piping for gas, water, air conditioning, etc. were inserted through steel beams. For this purpose, holes are often provided in the web portion of the beam. Drilling a hole in a steel beam like this If provided, the strength around the hole in the beam will decrease, so reinforcement measures are taken.

0003 4 and 5 each show an example of a conventional hole reinforcement structure. The example in FIG. 4 has a hole 54a concentric with the hole 53 on both sides of the web 52 of the beam 51. Two reinforcing plates 54 are welded together. In the example of FIG. 5, the sleeve 55 is inserted into the hole 53 of the web 52 of the beam 51 and welded. In addition, a plate-shaped reinforcing rib 56 is provided between the sleeve 55 and the upper and lower flanges 57 of the beam 51. It is welded. In the example of FIG. 6, reinforcing material 58 as a lattice material is placed around the hole 53 of the beam 51 on the top and bottom. The flanges 57 are welded in a triangular shape.

0004

[Problem that the idea aims to solve]

The structure shown in FIG. 4 is a structure in which the reinforcing plate 54 is simply attached to the web surface and welded, so In order to obtain sufficient strength, it is necessary to weld the reinforcing plate 54 around the entire circumference, and the weld length must be becomes longer. Formation of the holes 53 and welding of the reinforcing plate 54 may be performed at the construction site. In many cases, as the welding length becomes longer as mentioned above, the on-site construction time becomes longer.

[0005] The example shown in FIG. 5 has a structure in which a reinforcing rib 56 is provided by inserting the sleeve 55. Although it has excellent strength, the height of the reinforcing rib 56 is different from that of the sleeve 55 and flange 57. must match the distance. Beams 51 can be used in various sections even in one building. Since a beam with a surface height (beam size) is used, the type is determined depending on the cross-sectional height of the beam 51 used. It is necessary to prepare reinforcing ribs 56 of different vertical lengths, which increases the number of types of members. . Moreover, the reinforcing ribs 56 are arranged on the upper and lower sides of both sides of the web 52, and a total of four reinforcing ribs 56 are used. In addition, a sleeve 55 is used. Therefore, the number of parts increases, and There are more contact points, the reinforcement work is complicated, and the on-site construction time is longer.

[0006] In the example shown in FIG. 6, the reinforcing material 58 is welded between the upper and lower flanges 57, so the strength is However, this example also uses reinforcing materials 58 of various lengths depending on the vertical width of the beam 51. You need to prepare. Additionally, two reinforcing materials 58 are used on both sides of the web 52. Therefore, there are many parts, welding points, and on-site construction time.

[0007] The purpose of this invention was to simplify the reinforcement work, provide superior strength, and shorten the welding length. It can be made shorter, reducing construction time on site, and can be used for steel frames with various cross-sectional heights. Therefore, it is an object of the present invention to provide a steel frame hole reinforcing material that can reduce the number of types.

[0008]

[Means to solve the problem]

The reinforcing material for the steel frame hole of this invention consists of a sleeve part and the outer periphery of this sleeve part. It consists of a flange part.

[0009]

[Effect]

During construction, the steel frame hole reinforcing material is inserted into the hole made in the web of the steel frame such as a beam. The rib portion is inserted, and the flange portion is placed along the surface of the web. In this state, for example For example, the inner periphery of the hole in the web and the outer periphery of the sleeve portion are welded together. By installing in this way, the sleeve and flanges of this steel hole reinforcement The hinge portion provides reinforcement around the hole in the steel frame.

0010

【Example】

An embodiment of this invention will be described based on FIGS. 1 to 3. Figure 1 shows the steel frame hole reinforcing material 1 fixed to a steel frame 4 made of H-beam steel. . The steel frame hole reinforcement material 1 includes a sleeve portion 2 and an outer periphery of the sleeve portion 2 at the center in the axial direction. It consists of a disc-shaped flange part 3 provided at It is built. The sleeve portion 2 has a tapered outer circumferential surface and is thicker at the center. The flange part 3 is thicker, and one side of the flange part 3 is formed on a tapered surface with a thicker wall on the inner circumferential side. has been done. The outer diameter of the sleeve portion 2 depends on the inner diameter of the hole 5 of the steel frame 4, for example, the diameter is formed to about 100 to 400 mm.

[0011] The material of the steel frame hole reinforcing material 1 is such that the sleeve part 2 is made of structural steel pipe and the sleeve part 2 is made of structural steel pipe. A steel plate may be used for the hinge portion 3 and the two may be welded together in advance.

0012 Next, how to use it will be explained. The steel frame 4 is the beam of the building, etc., and the hole 5 is Formed during construction of piping and wiring in buildings. The steel frame hole reinforcing material 1 is suitable for forming holes 5. After that, insert the sleeve part 2 into the hole 5 so that the flange part 3 follows the web 4a of the steel frame 4. In this state, the inner periphery of the hole 5 and the outer periphery of the sleeve portion 2 are welded as shown by a welded portion 6.

[0013] This steel frame hole reinforcing material 1 is inserted into the hole 5 of the steel frame 4 and the inner periphery of the hole 5 is melted. Reinforcement work is completed just by making contact. In addition, reinforcement can be achieved with only one steel hole reinforcement material 1. I can do it. Therefore, reinforcement work is simplified. Moreover, the sleeve part 2 and the flange part Since it is integrated with 3, the reinforcing effect is high, and the welded part 6 is also on the inner periphery of the hole 5. A sufficient reinforcing effect can be obtained by simply applying the welding method, and the welding length can be shortened. Due to these factors, on-site construction time is shortened. In addition, the reinforcement work is simple and the welding length is short, so there is no possibility of construction defects. Therefore, stable reinforcement quality can be obtained.

[0014] Further, the sleeve portion 2 and the flange portion 3 are arranged only on the web 4a of the steel frame 4. Since it is not necessary to fix the steel frame 4 to the upper and lower flanges 4b, various A steel frame hole reinforcing material 1 having the same shape and size as the steel frame 4 having the cross-sectional height can be used. Besides that The number of types of steel frame hole reinforcing materials 1 is small when used for steel frames 4 such as beams in various parts. It's over. In addition, since the sleeve part 2 and flange 3 are integrated, there is no external exposure. It also looks good when used for exposed beams, etc.

[0015] In addition, although the above usage example was explained for the case where it was used for a beam, the steel frame hole part of this invention was explained. The reinforcing material 1 can also be used for steel frames such as columns. In addition, the steel frame of the steel frame hole reinforcement material 1 4 can be selected from various locations depending on the purpose and the like.

[0016]

[Effect of the idea]

The reinforcing material for the steel frame hole of this invention consists of a sleeve part and the outer periphery of this sleeve part. Since it consists of a flange part, the sleeve part must be inserted into the hole in the steel web. All that is required is welding, and reinforcement can be performed using a single steel frame hole reinforcement material. Therefore, compensation Heavy work is simplified. Alternatively, the sleeve portion and flange portion may be integrated in advance. Therefore, the reinforcing effect is high and the welding length can be shortened. In this way, reinforcement work is easy. Because the welding process is simple and the welding length is short, on-site construction time is shortened. Furthermore, the sleeve part and flange part are fixed only to the steel web. Since there is no need to fix the steel frame to flanges, etc., it can be used with steel frames of various cross-sectional heights. Steel hole reinforcement materials of the same shape and size can be used.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing the relationship between a steel frame hole reinforcing material and a steel frame according to an embodiment of the invention.

FIG. 2 is a front view thereof.

FIG. 3 is a perspective view of the steel frame hole reinforcement material.

FIG. 4 is a sectional view and a partial front view of a conventional example.

FIG. 5 is a sectional view and a partial front view of another conventional example.

FIG. 6 is a sectional view and a partial front view of another conventional example.

[Explanation of symbols]

1... Steel frame hole reinforcement material, 2... Sleeve part, 3... Flange part, 4... Steel frame, 4a... Web, 5... Hole, 6... Welding part

Claims (1)

[Scope of utility model registration request] Claim 1: Consisting of a sleeve part and a flange part provided on the outer periphery of the sleeve part, the sleeve part is inserted into a hole in a web of a steel frame, and the flange part is in contact with the periphery of the hole in the web. A steel frame hole reinforcement material fixed to the steel frame.