KR20160101501A

KR20160101501A - Easy cross square steel pipe fittings work

Info

Publication number: KR20160101501A
Application number: KR1020150024172A
Authority: KR
Inventors: 이병덕
Original assignee: 이병덕
Priority date: 2015-02-17
Filing date: 2015-02-17
Publication date: 2016-08-25

Abstract

The present invention relates to a cross-shaped steel pipe which is easy to be joined, and more particularly, it is possible to perform a jointing operation by incorporating a conventional steel pipe as a joint without welding in a steel structure joining operation. Which is easy to install inside and outside materials and insulation, and can be applied to various construction sites such as wood construction or concrete construction. In addition, the cross-shaped steel pipe .
The present invention is characterized in that a central steel pipe formed by a square steel pipe and an outer steel pipe integrally formed on four sides or three sides of a square steel pipe having the same length as the outer side of the central steel pipe, It can be used as a finishing material to finish the construction.

Description

Technical Field [0001] The present invention relates to a cross-

The present invention relates to a cross-shaped steel pipe which is easy to be joined, and more particularly, it is possible to carry out a joining operation by incorporating a conventional steel pipe as a connecting pipe without welding in a steel structure joining operation, It is convenient to install interior, exterior material and thermal insulation material as well as to secure stability by improving the joint strength by improving the workability. It is also possible to finish the cross-shaped steel pipe itself with concrete object The present invention relates to a cross-shaped steel pipe which can be easily applied to a construction site.

Generally, the building structure is made of reinforced concrete structure, steel structure, steel frame, and reinforced concrete structure.

The above-mentioned reinforced concrete structure is structurally and economically most used because it reinforces reinforced concrete which is strong to compressive force but very weak to tensile force and strong tensile force.

In addition, since the steel structure is made of a steel material excellent in strength and ductility compared to the reinforced concrete, it can absorb a large amount of strain energy due to an earthquake, wind, impact, etc., and a structure in which a reinforced concrete structure is combined with a steel structure, And it is applied to the enlargement of the building and the superstructure of the building.

In the steel structure of the above-mentioned construction structure, the material of the column and the beam is generally a parallel flange-shaped steel or a steel pipe having a parallel flange such as an H-shaped steel or a parallel flanged groove-shaped steel.

Among the above structures, a steel structure using a steel pipe is combined with a column and a beam by a welding method or a high-strength bolt connection for the connection between the column and the beam.

The above-mentioned welding method has a problem that the physical properties are changed, the work is inconvenient and the cost is high, and the workability is deteriorated.

In view of the above problems, a steel structure having a steel structure as disclosed in Korean Patent No. 519174 has been proposed.

The above-described coupling structure is a coupling structure in which even a non-expert can easily and easily combine, and a high strength coupling can be achieved by using only one bolt while allowing quick coupling.

However, the above-described joint structure is complicated in operation, the connection strength is weak due to the connection only at the end and the side of the steel pipe, and there is a problem that it can not be applied to various construction sites such as wooden houses or work separately for the construction of the insulation.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a method of manufacturing a steel pipe, It is possible to improve the jointing strength by improving the joint strength and to improve the workability. In addition, it is convenient to install the inner and outer materials and the insulation, and it is convenient to install various materials such as wood construction or concrete construction It is an object of the present invention to provide a cross-shaped steel pipe which can be easily applied to a construction site.

In order to accomplish the above object, the present invention provides a steel pipe comprising: a central steel pipe formed of a square steel pipe; and a rectangular steel pipe having a length equal to the length of the outer side of the central steel pipe, And an outer steel pipe formed of a steel pipe.

An outer rectangular steel pipe having the same length as the outer side length of the central steel pipe is integrally formed on the outer side of the central steel pipe at four sides (FIG. 3) or three sides (FIG.

The protruding rectangular steel pipe having a length shorter than the outer side length of the central steel pipe may be formed integrally with the outer side of the central steel pipe so as to be positioned at the four sides of the central steel pipe (FIG. 5) Four (Fig. 5) or three corners of the central steel pipe (Fig. 6) are formed to protrude into the steel pipe.

The outer steel pipe is formed into a square shape and the square outer steel pipe is cross-shaped to connect corners to form a central steel pipe at the center of the outer steel pipes at four sides and a connecting protrusion is formed at the inner edge of the center steel pipe by the thickness of the outer steel pipe. (Fig. 7)

As described above, the cross-shaped steel pipe, which is easy to be joined by the present invention, can be jointed without welding when joining with the column or between the column and the beam, and a joint pipe It improves the ease of construction and improves the ease of construction. It can improve the joint strength by increasing the strength of the joint. It is convenient to install inner and outer materials and insulation, It can be applied to various construction sites such as construction.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Various changes and modifications may be made by those skilled in the art.

1 is a perspective view showing a cross-shaped steel pipe according to the present invention,
FIG. 2 is a perspective view of a cross-shaped steel pipe to which a "convex" shape is applied,
FIG. 3 is a perspective view of a cruciform steel pipe to which an outer rectangular pipe is applied,
FIG. 4 is a perspective view showing a concavo-convex shape of a cruciform steel pipe in which an outer rectangular pipe is easily applied,
FIG. 5 is a perspective view of a cruciform steel pipe in which a projecting rectangular steel pipe is easily applied, according to the present invention. FIG.
FIG. 6 is a perspective view showing a concavo-convex shape of a cruciform steel pipe in which a projecting rectangular steel pipe is easily applied, according to the present invention. FIG.
FIG. 7 is a perspective view of a cross-shaped steel pipe with a rectangular outer pipe,
FIG. 8 is a perspective view showing a column joint of a cross-shaped steel pipe,
FIG. 9 is an exploded perspective view showing a column and a beam joint of a cross-shaped steel pipe,
FIG. 10 is an assembled perspective view showing a column and a beam joint of a cross-shaped steel pipe,
FIG. 11 is an exploded perspective view showing a joint of a cross of a cross-shaped steel pipe, which is easy to be joined according to the present invention,
FIG. 12 is an assembled perspective view showing a joint of a cross of a cross-shaped steel pipe which is easy to be joined according to the present invention,
FIG. 13 is a cross-sectional view showing a cross-sectional shape of a cruciform steel pipe that facilitates jointing work according to the present invention,
FIG. 14 is a cross-sectional view showing a state in which a rectangular cross-section steel pipe with a rectangular cross-section is easily applied according to the present invention.

In order to fully understand the advantages of the present invention and the advantages of the present invention and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings, which show preferred embodiments of the present invention, and the contents of the accompanying drawings.

Hereinafter, the present invention will be described in more detail with reference to specific examples of the present invention. The following examples are provided to further illustrate the present invention, but the technical scope of the present invention is not limited thereto.

(Example)

FIG. 1 is a perspective view illustrating a cross-shaped steel pipe according to an embodiment of the present invention.

As shown in the figure, the cross-shaped steel pipe of the present invention has a central steel pipe 10 and an outer steel pipe 20 integrally formed on the outer side of the central steel pipe 10.

The central steel pipe 10 is formed as a square steel pipe, and a rectangular steel pipe having the same length as the outer side of the central steel pipe 10 is integrally formed on four sides to form an outer steel pipe.

The outer steel pipe 20 is integrally formed on three sides as shown in Fig.

3 to 4, the outer steel pipe 20 is formed with the same length as the outer side of the central steel pipe 10, and an outer rectangular steel pipe (not shown) 30 are integrally formed on four sides or three sides of the central steel pipe 10.

That is, a rectangular outside rectangular steel pipe 30, which is the same as the outer side length of the central steel pipe 10, is formed on the four outer sides or three sides of the central steel pipe 10.

On the other hand, as shown in FIG. 5 to FIG. 6, at the four sides or three side edges of the central steel pipe 10, a long side shorter than the four side lengths of the central steel pipe 10, And four or three corners of the central steel pipe 10 are formed so as to protrude into the steel pipe 50.

7, the outer steel pipe 20 is formed in a square shape, and the square outer steel pipe 20 is cross-shaped and connected to the corners so that a center steel pipe 10 is formed at the center of the four outer steel pipes 20, A connecting protrusion 60 may be formed on the inner edge of the central steel pipe 10 by a thickness of the outer steel pipe 20 to insert the same square steel pipe into the inner diameter of the outer steel pipe 20. [

The operation and effect of the present invention constructed as described above will be described below.

As shown in FIG. 8, in the method of connecting columns in the steel structure, the outer steel pipe 20 of the cross-shaped steel pipe is perforated by a boring operation, and the cross-shaped steel pipe is overlapped with the length of the column. 20 are inserted and connected to each other.

In this state, when the reinforcement plate 71 is attached to the outer surface of the outer steel pipe 20, the reinforcement plate 71 has a stronger connection structure with respect to the vertical load and the lateral load. This is because the outer rectangular pipe 30, The joint structure of the pipe 40 also has the same structure.

When the connecting pipe 70 is inserted and connected to the outer steel pipe 20, the outer steel pipe 20 formed on four sides or three sides of the central steel pipe 10 is fixed, so that the joint strength can be strengthened.

Also, as shown in Figs. 9 to 10, the structure connecting the columns to the beams makes the centers of the ends of the cross-shaped steel pipes coincide with the outer steel pipes 20 on the left and right sides of the columns.

As described above, in a state in which the column member and the beam are vertically in close contact with each other, a " " " So that one surface of the outer steel pipe (20) located at one side of the column and one surface of the upper and lower outer steel pipe (20) are fixed.

The connection pipe 70 is inserted into the inner pipe of the outer pipe 20 located at the front and rear sides of the pipe before the connection between the pipe and the pipe as described above and then the end of the connection pipe 70 is connected to the outer pipe 20 And the outer side of the connecting pipe 70 exposed to the gap between the column and the beam is wrapped by the groove-shaped steel 73 so as to form a horizontal plane with the outer steel pipe 20.

In this state, in a state where the grooved steel tube 73 and the outer steel pipe 20 of the beam are wrapped, the fastening steel 74 is bolted to the inner surface of the outer steel pipe 20 of the column and the inner surface of the outer steel pipe 20 of the beam. ) To fix the column and beam.

11 to 12, the structure in which the beams are vertically connected with the pillars interposed therebetween includes a side beam 75 and a front beam 76 on the outer side steel pipe 20 located on the front side and the inner side of the column, respectively. The upper and lower sides of the outer steel pipe 20 located on the upper and lower sides of the side beam 75 and the front beam 76 are tightened through the "

In this state, the connecting pipe 70 is inserted into the inner diameter of the outer steel pipe 20 formed on the left and right sides of the side beam 75 and the front face 76 of the front face beam 76 to form the groove- As shown in Figs. 9 to 10.

At this time, an inclined surface 77 is formed to prevent the corner portions of the fastening-shaped steel 74, which are fastened to the inside angles of the side beam 75 and the front beam 76, from overlapping.

When the external finishing or slabs are installed on the beams to be installed as described above, the struts 78 are joined to the external steel pipe 20 as shown in FIG. 13, and then the connecting pipes 80 are connected to both sides of the struts 78, A heat insulating material 79 is interposed.

The wood 81 and the facings 82 can be easily assembled to the outer side of the connecting pipe 80 so that the outer wall or the slab can be easily installed.

14, the rectangular steel pipe with the connecting protrusion 60 is formed by installing the heat insulating material 79 without installing the strut, installing the connecting pipe 80 outside the heat insulating material 79, The wood 81 and the exterior material 82 can be applied to improve the workability.

10: central steel pipe 20: outer steel pipe

Claims

A central steel pipe 10 formed as a square steel pipe,
And an outer steel pipe (20) integrally formed on four sides or three sides of a rectangular steel pipe having the same length as the outer side of the central steel pipe (10).

An outer rectangular pipe (30) having a length equal to the outer side length of the central steel pipe (10) is connected to four sides or three sides of the central steel pipe (10) And a cross-shaped steel pipe which is easy to be joined.

The method as claimed in claim 1, wherein a protruding rectangular steel pipe (40) having a length shorter than an outer side length of the central steel pipe (10) is disposed on the outer side of the central steel pipe (10) And four or three corners of the central steel pipe (10) are formed so as to protrude from the backed steel pipe (50).

The method as claimed in claim 1, wherein the outer steel pipe (20) is formed into a square shape and the square outer steel pipe (20) is formed in a cross shape by connecting corners so as to form a central steel pipe (10) And a connecting protrusion (60) is formed on the inner edge of the central steel pipe (10) by a thickness of the outer steel pipe (20).