KR20170128002A - Connection socket of steel column and beam, and framework connection structure of using the same - Google Patents

Abstract

Disclosed are a connection socket of a steel column and a beam, and a framework connection structure using the same, which can improve constructability to easily connect a steel column and a column, and a column and a beam through a bolt coupling and insertion coupling structure instead of welding. According to the present invention, the connection socket of a steel column and a beam may comprise: a first steel pipe unit to which at least one beam is coupled to an external side surface; a second steel pipe unit inserted into the inside of the first steel pipe unit, and protruding compared to an upper end a lower end of the first steel pipe unit, wherein end portions of an upper steel pipe column and a lower steel pipe column are individually inserted into and coupled to an upper end protruding portion and a lower end protruding portion; and a filling material filled in the inside of the second steel pipe unit to prevent deformation of the first and second steel pipe units.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a steel pipe column and a beam connecting socket,

The present invention relates to a steel pipe column, a column, a connection socket for connecting the column and the beam, and a frame connection structure for facilitating construction of steel pipe frame using the connection socket.

Generally, the frame of an architectural structure is constructed by connecting a beam to a steel pipe column such as a square or a circle, or connecting a column to a column.

Conventionally, when a beam is connected to a column of a steel pipe, the end plate attached to the end of the beam is joined to the outer surface of the column by welding, thereby connecting the column and the beam. In addition, when the steel pipe column is connected to the column, the lower end of the upper steel pipe column and the upper end of the lower steel pipe column are welded and welded to the upper and lower ends of the steel pipe joint, respectively, with the steel pipe joint between the upper steel pipe column and the lower steel pipe column, And the column are connected.

However, the conventional frame connection structure is difficult to manufacture due to the occurrence of errors in the welding process because the columns and the columns and the columns and the beams are welded to each other by welding, and it is not easy to connect the columns and the columns and the beams together. There are disadvantages. In addition, when the steel pipe is compressed and tensioned, the strength of the column and column and the welded portion of the column and the beam are weak, so that the connection structure of the frame is deformed or broken.

Japanese Patent Application Laid-Open No. 10-2011-0138309 (December 27, 2011) Japanese Patent Application Laid-Open No. 10-1996-0031735 (September 17, 1996)

The present invention is directed to a steel pipe column and beam connecting socket capable of improving the workability so that the steel pipe column, the column, and the column and the beam can be easily connected through the bolt fastening and fitting structure instead of welding, The purpose of the connection structure is to provide.

According to an aspect of the present invention, there is provided a steel pipe column and a beam connecting socket including: a first steel pipe section having at least one or more beams coupled to an outer surface; A second steel pipe portion inserted into the first steel pipe portion and protruding from the upper and lower ends of the first steel pipe portion and having the end portions of the upper steel pipe column and the lower steel pipe column inserted into the upper end portion and the lower end portion; And a filling material filled in the second steel pipe part to prevent deformation of the first and second steel pipe parts.

The first steel pipe portion has a hollow closed end face passing through the inside thereof, and the second steel pipe portion has a hollow closed end face contacting the inner side face of the first steel pipe portion and penetrating the inside thereof, The second steel pipe portion may be formed in a square or circular shape so as to correspond to each other.

The filling material may have a hollow hole formed therein or a through hole penetrating the upper and lower portions of the hollow hole to form a part of the filler material as an empty space.

The steel pipe column and the beam connecting socket are installed in the filler material in the second steel pipe section to reinforce the strengths of the first and second steel pipe sections so as to prevent deformation due to generation of tension and compression And a stiffener.

The reinforcing member is engaged with the beam at a position corresponding to the upper portion of the first steel pipe portion inside the second steel pipe portion and prevents the deformation of the steel pipe due to the tensile force generated at the upper portion of the steel pipe by the load of the beam A first stiffener; And a second reinforcement member fastened to the beam at a position corresponding to a lower portion of the first steel pipe portion inside the second steel pipe portion and preventing deformation of the steel pipe due to a compressive force generated in the lower portion of the steel pipe due to the load of the beam .

The reinforcing member may include: a reinforcing body having a shape corresponding to the second steel pipe portion; And a plurality of female screw portions protruding from a side surface of the reinforcing body and bolts for fastening the first and second steel pipe portions to the first and second steel pipe portions in a state of being in contact with the inner surface of the second steel pipe portion can do.

In the case where the second steel pipe portion has a quadrangle shape, the reinforcing body is in the form of a rectangular pipe having an opening at the center, and the female screw portion is formed by protruding one pair at each of the square corners of the reinforcing body, Holes may be formed.

When the second steel pipe has a circular shape, the reinforcing body is formed in the shape of a circular pipe having an opening at the center, and the female screw part is formed in a plurality of radial protrusions on the outer circumferential surface of the reinforcing body and a female screw hole .

According to an aspect of the present invention, there is provided a steel pipe column and a beam connecting socket including: a steel pipe portion having at least one beam coupled to an outer surface; A plurality of inner reinforcing plates inserted in the inside of the steel pipe section to reinforce the inside of the steel pipe section and protrude from the upper and lower ends of the steel pipe section and the end portions of the upper steel pipe column and the lower steel pipe column are fitted to the upper and lower end projecting sections, ; And a filling material filled in the inner reinforcing plate to prevent deformation of the steel pipe and the inner reinforcing plate.

The steel pipe portion has a hollow closed end face passing through the inside thereof, and the inner reinforcing plate is made of a plurality of plate materials arranged in an array along the inner side face of the steel pipe portion, and the steel pipe portion and the inner reinforcing plate are made to correspond to each other And may be formed in a square or circular shape.

The filling material may have a hollow hole formed therein or a through hole penetrating the upper and lower portions of the hollow hole to form a part of the filler material as an empty space.

The steel pipe column and the beam connecting socket are installed to be embedded in the filling material inside the inner reinforcing plate and reinforce the strengths of the steel pipe portion and the inner reinforcing plate so as to prevent deformation due to tensile and compression incidence And a reinforcing member for reinforcing the reinforcing member.

The reinforcing member may include a first reinforcing member that is engaged with the beam at a position corresponding to the upper portion of the steel pipe portion inside the inner reinforcing plate and prevents deformation of the steel pipe due to a tensile force generated by the load of the steel pipe, reinforcement; And a second reinforcement member fastened to the beam at a position corresponding to a lower portion of the steel pipe portion inside the inner reinforcement plate and preventing deformation of the steel pipe due to a compressive force generated in the lower portion of the steel pipe due to the load of the beam .

The reinforcing member may include: a reinforcing body having a shape corresponding to that of the internal reinforcing plate; And a plurality of female screw portions protruding from a side surface of the reinforcing body and bolts for fastening the steel pipe portion and the inner reinforcing plate to each other in a state of being in contact with an inner side surface of the inner reinforcing plate can do.

When the inner reinforcing plate has a rectangular shape, the reinforcing body is formed in the shape of a rectangular pipe having an opening at the center, and the female threaded portion is formed at each of the square corners of the reinforcing body so as to protrude orthogonally to each other, Can be formed.

When the inner reinforcing plate has a circular shape, the reinforcing body is formed in the shape of a circular pipe having an opening at the center thereof, and a plurality of the female threaded portions are radially protruded from the outer peripheral surface of the reinforcing body and a female screw hole is formed at the end .

According to an aspect of the present invention, there is provided a steel pipe column and a beam connecting socket, Upper and lower steel pipe columns respectively fitted into the upper and lower protrusions of the second steel pipe portion; At least one beam disposed so that the end plate is in contact with the outer surface of the first steel pipe portion; A plurality of fixing nuts fixed to the second steel pipe portion so as to prevent rotation before the second steel pipe portion is inserted into the first steel pipe portion; And a fixing member for fixing the steel pipe column to the second steel pipe portion after passing through the side surfaces of the steel pipe column and the second steel pipe portion from the outside of the steel pipe column, And a plurality of bolts passing through the side surfaces of the first steel pipe portion and the second steel pipe portion and then being fixed to the fixing nut to fix the beam to the first steel pipe portion.

According to an aspect of the present invention, there is provided a steel pipe column and a beam connecting socket, Upper and lower steel pipe columns respectively fitted to the upper and lower protrusions of the inner reinforcing plate; At least one beam disposed so that the end plate is in contact with the outer surface of the steel pipe section; A plurality of fixing nuts fixed to the inner reinforcing plate to prevent rotation of the inner reinforcing plate before the inner reinforcing plate is inserted into the steel pipe portion; And fixing the steel pipe column to the inner reinforcing plate by passing through the side of the steel pipe column and the inner reinforcing plate from the outside of the steel pipe column and then fastening the fixing nut to the end plate, And a plurality of bolts passing through the steel pipe section and the side surfaces of the inner reinforcing plate and then fastened to the fixing nut to fix the beam to the steel pipe section.

The steel pipe column and beam connecting socket of the present invention and the frame connection structure using the steel pipe column and beam connecting socket have the following effects.

First, according to the present invention, the upper and lower steel pipe columns are bolted to the upper and lower protrusions of the connection socket, respectively, and the bolts are fastened to the connection socket, It is simple and stronger than the structure. That is, the present invention can improve the workability through the fitting structure by the fitting and the bolt, not by the conventional welding structure, and it is possible to reinforce the strength of the steel pipe connecting portion.

In addition, the present invention can prevent the deformation of the connection socket when the connection socket is filled with the filling material such as concrete by tension and compression, and can reduce the weight of the member by forming the hollow hole in the filling material, There is an effect that the workability can be improved.

Further, the present invention has the effect of reinforcing the structural performance so as to prevent deformation due to tension and compression in the steel pipe by providing the reinforcing member in the inside of the connection socket.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a steel pipe column and a beam connecting socket according to a first embodiment of the present invention. FIG.
2 is an exploded perspective view of a frame connection structure using a steel pipe column and a beam connecting socket according to a first embodiment of the present invention.
3 is a perspective view of a steel pipe column and beam connecting socket according to a first embodiment of the present invention.
4 is a cross-sectional view showing an embodiment in which a filler is provided inside a steel pipe column and a beam connecting socket according to the first embodiment of the present invention.
5 is a cross-sectional view of the frame connection structure using the steel pipe column and beam connection socket shown in Fig.
FIG. 6 is a cross-sectional view illustrating an embodiment in which a filler having a hollow hole is formed in a steel pipe column and a beam connecting socket according to a first embodiment of the present invention. FIG.
7 is a cross-sectional view of the frame connection structure using the steel pipe column and beam connection socket shown in Fig. 6;
8 is a cross-sectional view showing an embodiment in which a filler and a reinforcement are provided in a steel pipe column and a beam connecting socket according to the first embodiment of the present invention.
9 is a cross-sectional view of the frame connection structure using the steel pipe column and beam connection socket shown in FIG.
10 is a cross-sectional view showing an embodiment in which a filler and a reinforcing member are provided with a hollow hole in a steel pipe column and a beam connecting socket according to the first embodiment of the present invention.
11 is a cross-sectional view of a frame connection structure using a steel pipe column and beam connecting socket shown in FIG. 10;
12 is a perspective view of a steel pipe column and a reinforcing member provided in the beam connecting socket according to the first embodiment of the present invention;
13 is a plan view showing a fastening structure of a reinforcing member in a frame connection structure using a steel pipe column and a beam connecting socket according to the first embodiment of the present invention.
FIG. 14 is a perspective view of a steel pipe column and a beam connecting socket according to a second embodiment of the present invention. FIG.
15 is an exploded perspective view of a frame connection structure using a steel pipe column and a beam connecting socket according to a second embodiment of the present invention.
16 is a perspective view of a steel pipe column and a beam connecting socket according to a second embodiment of the present invention.
17 is a perspective view of a steel pipe column and a reinforcing member provided in the beam connecting socket according to the second embodiment of the present invention.
18 is a plan view showing a fastening structure of a reinforcing member in a frame connection structure using a steel pipe column and a beam connecting socket according to a second embodiment of the present invention;
19 is an exploded perspective view of a frame connection structure using a steel pipe column and a beam connecting socket according to a third embodiment of the present invention.
20 is a perspective view of a steel pipe column and a beam connecting socket according to a third embodiment of the present invention;
21 is an exploded perspective view of a frame connection structure using a steel pipe column and a beam connecting socket according to a fourth embodiment of the present invention.
22 is a perspective view of a steel pipe column and beam connecting socket according to a fourth embodiment of the present invention;

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings, in which: FIG. In the following description, well-known functions or constructions are not described in detail to avoid unnecessarily obscuring the subject matter of the present invention.

1 and 2 are an assembled perspective view and an exploded perspective view of a frame connection structure using a steel pipe column and a beam connection socket according to a first embodiment of the present invention.

1 and 2, a frame connection structure 1 according to a first embodiment of the present invention includes a steel pipe column and a beam connection socket 100 formed in the form of a double rectangular steel pipe, The bolts can be fastened to the column and the beam.

The frame connection structure 1 according to the first embodiment of the present invention includes a steel pipe column and beam connecting socket 100, upper and lower steel pipe columns 10 and 20, a beam 30, a fixing nut 40, (50).

The steel pipe column and the beam connecting socket 100 are formed in the form of a double rectangular steel pipe in which the second steel pipe portion 120 is inserted into the first steel pipe portion 110 of the square steel pipe. The steel pipe column and beam connecting socket 100 according to the first embodiment of the present invention will be described later in detail with reference to FIGS. 3 to 13.

The lower steel pipe column 10 and the lower steel pipe column 20 are formed in a rectangular shape such as a rectangular steel pipe and the lower end of the upper steel pipe column 10 and the upper end of the lower steel pipe column 20 And are fitted to the upper end protrusion 120a and the lower end protrusion 120b from outside, respectively. A plurality of bolt through holes (11, 21) are formed in the lower end of the upper steel pipe column (10) and the upper end of the lower steel pipe column (20).

The beam 30 is welded to the flat end plate 31 so as to correspond to the outer surface of the rectangular steel pipe at the end thereof and the end plate 31 is placed in contact with the outer surface of the first steel pipe portion 110 As shown in FIG. A plurality of bolt through holes 32 are formed in the end plate 31 of the beam 30. Although not shown in the drawing, the end plate 31 of the beam 30 is longer than the first steel pipe portion 110 so that the upper and lower ends of the end plate 31 are connected to the upper steel pipe column 10 and the lower And may be fastened with bolts 50 in contact with the outer surface of the steel pipe column 20. [ In the present embodiment, the beam having the H-shaped cross section is illustrated, but the present invention is not limited thereto, and beams having different cross sections can be applied.

A plurality of fixing nuts 40 may be provided to prevent rotation of the second steel pipe portion 120 before the second steel pipe portion 120 is inserted into the first steel pipe portion 110. That is, the fixing nut 40 is inserted into the first steel pipe part 110 together with the second steel pipe part 120 while being fixed to the second steel pipe part 120. The fixing nut 40 has a fitting part (not shown) which is inserted into a nut fixing hole (not shown) formed on the inner surface of the second steel pipe part 120 and a fitting part (Not shown) that is caught on the inner surface of the second steel pipe portion 120 when the second pipe portion 120 is opened.

The bolts 50 pass through the side surfaces of the steel pipe columns 10 and 20 and the second steel pipe portion 120 from the outside of the upper and lower steel pipe columns 10 and 20 and then are fastened to the fixing nut 40 The upper and lower steel pipe columns 10 and 20 are fixed to the second steel pipe portion 120 and the end plate 31, the first steel pipe portion 110, A plurality of holes may be provided to penetrate the side surface of the second steel pipe part 120 and then be fastened to the fixing nut 40 to fix the steel pipe 30 to the side surface of the first steel pipe part 110.

The fixing nut 40 and the bolt 50 are disclosed in the patent application No. 10-2015-0031786 filed by the applicant of the present invention, and a detailed description thereof will be omitted.

3 is a perspective view of a steel pipe column and a beam connecting socket according to a first embodiment of the present invention.

3, the steel pipe column and beam connecting socket 100 according to the first embodiment of the present invention includes a double rectangular steel pipe structure including a first steel pipe portion 110 and a second steel pipe portion 120 Lt; / RTI >

The first steel pipe portion 110 may have a rectangular shape, for example, a rectangular steel pipe having a hollow closed end face passing through the inside thereof. In this embodiment, the first steel pipe portion 110 is formed of a rectangular steel pipe. However, the present invention is not limited to this, and a polygonal steel pipe such as a triangular, pentagonal, or hexagonal pipe may be used.

The first steel pipe part 110 has a plurality of bolt through holes 111 penetrating the side surface of the first steel pipe part 110 so that the bolt 50 can fasten the bolt 50 to the outer side surface. Preferably, the bolt through holes 111 are formed in two rows on the side surface of the first steel pipe portion 110 at regular intervals.

The second steel pipe part 120 is inserted into the first steel pipe part 110 and has a square shape having a hollow closed end face that contacts the inner side face of the first steel pipe part 110 and penetrates the inside of the first steel pipe part 110, 110 and a rectangular steel pipe having a shape corresponding to the rectangular steel pipe.

The second steel pipe part 120 is protruded from the upper and lower ends of the first steel pipe part 110 so that the ends of the upper steel pipe column 10 and the lower steel pipe column 20 are connected to the upper end protrusion 120a and the lower end protrusion 120b Respectively.

The second steel pipe part 120 has a plurality of bolt through holes 121 penetrating the side face. For example, a plurality of bolt through-holes 121 through which the bolts 50 for fastening with the upper steel column 10 are passed are formed in the upper projection 120a of the second steel pipe section 120, A plurality of bolt through holes 121 through which the bolts 50 pass for bolt tightening are formed at the lower end projecting portion 120b of the lower portion 120. [ The second steel pipe portion 120 is formed with a plurality of grooves for fastening the end plate 31 and the first and second steel pipe portions 110 and 120 of the beam 30 to the side surfaces corresponding to the first steel pipe portion 110. [ A plurality of bolt through holes 121 through which the bolts 50 pass are formed. The bolt through holes 121 formed in the second steel pipe portion 120 are formed at positions corresponding to the bolt through holes 111 formed in the first steel pipe portion 110.

FIG. 4 is a cross-sectional view illustrating an embodiment in which a filling material is provided in a steel pipe column and a beam connecting socket according to a first embodiment of the present invention. FIG. 5 is a cross- Fig.

4 and 5, a steel pipe column and a beam connecting socket 100 according to the first embodiment of the present invention are formed such that a second steel pipe part 120 is inserted into a rectangular first steel pipe part 110 And the filler 130 may be filled in the second steel pipe part 120. [0042] As shown in FIG. The filler 130 serves to prevent deformation of the first and second steel pipe sections 110 and 120 when tension and compression are generated. The filler 130 filled in the second steel pipe part 120 is also inserted into the space between the first steel pipe part 110 and the second steel pipe part 120 through the bolt through hole 121 of the second steel pipe part 120 The first steel pipe part 110 and the second steel pipe part 120 can be joined to each other by the filler 130. [ The filler 130 may be made of various materials such as concrete.

FIG. 6 is a cross-sectional view illustrating an embodiment in which a filler having a hollow hole is formed in a steel pipe column and a beam connecting socket according to a first embodiment of the present invention, FIG. 7 is a cross- Sectional view of the frame connection structure used.

6 and 7, the steel pipe column and the beam connecting socket 100 according to the first embodiment of the present invention are formed such that the second steel pipe part 120 is inserted into the square first steel pipe part 110 And the filler 130 may be filled in the second steel pipe part 120. [0042] As shown in FIG. The filling material 130 may have a hollow hole 131 formed therein or a through hole (not shown) passing through upper and lower portions of the hollow hole 131 to form a part of the filling material 130 as an empty space . By forming the hollow hole 131 in the filler 130, the weight of the member can be reduced, which is economical and the workability can be improved. By forming the hollow hole 131 passing through the filler 130 in the upper and lower directions through the hollow hole 131 penetrating vertically so as to communicate with the upper steel column 10 and the lower steel column 20, The filler 130 can be easily filled in the steel pipe column 10 and the lower steel pipe column 20. [ In this embodiment, an elliptical hollow hole 131 is formed in the filler 130. However, it is not limited to this, and hollow holes having various shapes such as a circular shape and a square shape can be formed.

FIG. 8 is a cross-sectional view showing an embodiment in which a filler and a reinforcing material are provided in a steel pipe column and a beam connecting socket according to the first embodiment of the present invention, FIG. 9 is a cross- Sectional view of the connection structure.

8 and 9, the steel pipe column and the beam connecting socket 100 according to the first embodiment of the present invention are formed such that the second steel pipe part 120 is inserted into the rectangular first steel pipe part 110 And the filler 130 may be filled in the second steel pipe part 120. [0042] As shown in FIG. In addition, the reinforcing material 140 may be embedded in the filler 130 in the second steel pipe portion 120. The reinforcing member 140 reinforces the strength of the first and second steel pipe sections 110 and 120 so as to prevent deformation of the steel pipe due to tension and compression.

The stiffener 140 may include a first stiffener 140a and a second stiffener 140b.

The first stiffener 140a is fastened with the beam 30 and the bolt 50 at a position corresponding to the upper portion of the first steel pipe portion 110 inside the second steel pipe portion 120 and the load of the beam 30 To prevent deformation of the steel pipe due to the tensile force generated in the upper part of the steel pipe.

The second stiffener 140b is fastened with the beam 30 and the bolt 50 at a position corresponding to the lower portion of the first steel pipe portion 110 inside the second steel pipe portion 120 and the load of the beam 30 Which prevents the deformation of the steel pipe due to the compressive force generated in the lower part of the steel pipe.

10 is a cross-sectional view showing an embodiment in which a filler and a reinforcing material having hollow holes are formed in a steel pipe column and a beam connecting socket according to a first embodiment of the present invention, FIG. 11 is a cross- Sectional view of a frame connection structure using a socket.

10 and 11, a steel pipe column and a beam connecting socket 100 according to the first embodiment of the present invention are formed such that a second steel pipe part 120 is inserted into a rectangular first steel pipe part 110 And the filler 130 may be filled in the second steel pipe part 120. [0042] As shown in FIG. The filling material 130 may have a hollow hole 131 formed therein or a through hole (not shown) passing through upper and lower portions of the hollow hole 131 to form a part of the filling material 130 as an empty space . The first and second steel pipe sections 110 and 120 are installed in the second steel pipe section 120 so as to be embedded in the filler material 130 so as to prevent deformation of the steel pipe due to tension and compression. And reinforces the strength of the heat sink 120.

FIG. 12 is a perspective view of a reinforcing member provided in a steel pipe column and a beam connecting socket according to a first embodiment of the present invention, FIG. 13 is a perspective view of a steel pipe column and a beam connecting socket according to the first embodiment of the present invention, Fig. 7 is a plan view showing a fastening structure of a reinforcing member.

12 and 13, the stiffener 140 according to the first embodiment of the present invention may include a reinforcing body 141 and a female threaded portion 143.

The reinforcing body 141 is formed in a rectangular pipe shape so as to be inserted into the second steel pipe part 120 having a square steel pipe shape. The reinforcing body 141 has a rectangular opening 142 formed at the center of the reinforcing body 141 when the reinforcing body 141 is embedded in the filler 130 inside the second steel pipe portion 120. [ So that the filling material 130 can be sufficiently filled through the opening 142.

A plurality of female threaded portions 143 are formed on the side surface of the reinforcing body 141 and are connected to the first and second steel pipe portions 110 and 120 in contact with the inner surface of the second steel pipe portion 120, The bolts 50 for fastening the bolts 30 can be screwed. For example, eight female threaded portions 143 are formed on each side of the reinforcing body 141 so as to be orthogonal to each other at each of the rectangular corners of the reinforcing body 141. At the end of the female threaded portion 141, A female screw hole 144 for fastening the female screw 50 is formed.

In this embodiment, when viewing the stiffener 140 in a plane, but illustrating a configuration of forming a similar shape as the hash (#) or pound (井), it can be formed into various shapes without being limited thereto.

The frame connection structure 1 using the steel pipe column and the beam connection socket 100 according to the first embodiment of the present invention can be realized by connecting the upper steel pipe column 10 and the lower steel pipe column 20 to the connection socket 100 The bolts 50 are fastened to the upper end protrusion 120a and the lower end protrusion 120b of the dual steel pipe section 120 and the bolts 50 are fastened to the first steel pipe section 110 of the connection socket 100 , The columns and pillars, and the columns and beams can be connected more simply and more firmly than the conventional welding structure.

The connection socket 100 may be filled with a filler 130 such as concrete to prevent deformation of the connection socket 100 when tension and compression are generated and a hollow hole 131 may be formed in the filler 130 It is possible to reduce the weight of the member, which is economical and can improve the workability. In addition, a reinforcing member 140 is provided inside the connection socket 100 to ensure structural performance to prevent deformation due to tension and compression.

14 and 15 are an assembled perspective view and an exploded perspective view of a frame connection structure using a steel pipe column and a beam connection socket according to a second embodiment of the present invention.

14 and 15, the frame connection structure 2 according to the second embodiment of the present invention includes a steel pipe column and a beam connection socket 200 having a dual round steel pipe shape, The bolts can be fastened to the column and the beam.

The frame connection structure 2 according to the second embodiment of the present invention is characterized in that the frame connection structure 2 includes a steel pipe column and a beam connection socket 200, upper and lower steel pipe columns 10 and 20, a beam 30, a fixing nut 40, (50).

The steel pipe column and the beam connecting socket 200 are formed in the shape of a double circular steel pipe in which the second steel pipe portion 220 is inserted into the first steel pipe portion 210 of the round steel pipe. The steel pipe column and beam connecting socket 200 according to the second embodiment of the present invention will be described later in detail with reference to FIG. 16 to FIG.

The upper steel pipe column 10 and the lower steel pipe column 20 are formed in the shape of a round steel pipe and the lower end of the upper steel pipe column 10 and the upper end of the lower steel pipe column 20 are connected to the upper end protrusion of the second steel pipe portion 220 220a and the lower protrusion 220b, respectively. A plurality of bolt through holes 11 and 21 are formed in the lower end of the upper steel pipe column 10 and the upper end of the lower steel pipe column 20. [

The beam 30 is welded so that the curved end plate 31 is welded so as to correspond to the outer surface of the circular steel pipe at the end thereof and the end plate 31 is brought into contact with the outer surface of the first steel pipe portion 210 of the circular steel pipe And is fastened with the bolt 50. A plurality of bolt through holes 32 are formed in the end plate 31 of the beam 30.

A plurality of fixing nuts 40 may be provided to prevent rotation of the second steel pipe portion 220 before the second steel pipe portion 220 is inserted into the first steel pipe portion 210. That is, the fixing nut 40 is inserted into the first steel pipe portion 210 together with the second steel pipe portion 220 while being fixed to the second steel pipe portion 220.

The bolt 50 penetrates through the side surfaces of the steel pipe columns 10 and 20 and the second steel pipe portion 220 from the outside of the upper and lower steel pipe columns 10 and 20 and then is fastened to the fixing nut 40, And the lower steel pipe columns 10 and 20 are fixed to the second steel pipe portion 220 and the end plate 31, the first steel pipe portion 210, A plurality of holes may be provided to penetrate the side surface of the dual pipe part 220 and then fastened to the fixing nut 40 to fix the pipe 30 to the first pipe part 210.

16 is a perspective view of a steel pipe column and a beam connecting socket according to a second embodiment of the present invention.

16, the steel pipe column and beam connecting socket 200 according to the second embodiment of the present invention has a double circular steel pipe structure including a first steel pipe portion 210 and a second steel pipe portion 220 Lt; / RTI > The second embodiment of the present invention is similar to the first embodiment described with reference to Figs. 1 to 13 except that the first steel pipe section 210 and the second steel pipe section 220 are formed in a double round steel pipe structure The detailed description of the same or similar components to those of the first embodiment will be omitted.

The first steel pipe part 210 may be a round steel pipe having a hollow closed end surface passing through the inside thereof. The first steel pipe part 210 has a plurality of bolt through holes 211 penetrating the side surface of the first steel pipe part 210 so that the bolt 50 can fasten the bolt 30 to the outer side surface.

The second steel pipe part 220 may be a circular steel pipe inserted into the first steel pipe part 210 and contacting the inner surface of the first steel pipe part 220 and having a hollow closed end face passing through the inside thereof. The second steel pipe part 220 is protruded from the upper and lower ends of the first steel pipe part 210 so that the ends of the upper steel pipe column 10 and the lower steel pipe column 20 are connected to the upper end protrusion 220a and the lower end protrusion 220b Respectively.

Although not shown in the drawings, the first and second steel pipe portions 220 and 220 may be prevented from being deformed when the filler is filled in the second steel pipe portion 220 to generate tension and compression. In addition, by forming a hollow hole in the filler material or forming a through hole through the upper and lower portions of the hollow hole, a part of the filler material is formed as an empty space, the weight of the member can be reduced, and it is economical and the workability can be improved. The reinforcing material may be embedded in the filler material in the second steel pipe part 220 so that the strength of the first and second steel pipe parts 210 and 220 may be adjusted to prevent the steel pipe from being deformed Can be reinforced.

FIG. 17 is a perspective view of a stiffener provided in a steel pipe column and a beam connecting socket according to a second embodiment of the present invention, FIG. 18 is a perspective view of a steel pipe column and a beam connecting socket according to a second embodiment of the present invention, Fig. 7 is a plan view showing a fastening structure of a reinforcing member.

17 and 18, the reinforcing member 240 according to the second embodiment of the present invention may include a reinforcing body 241 and a female threaded portion 243.

The reinforcing body 241 is formed in the shape of a circular pipe so as to be inserted into the second steel pipe part 220 having a circular steel pipe shape. The reinforcing body 241 is formed with a circular opening 242 at the center of the opening 242 of the reinforcing body 241 when the reinforcing body 241 is embedded in the filler material inside the second steel pipe portion 220 ) So that the filling material can be sufficiently filled.

A plurality of female screw portions 243 are formed on the side surface of the reinforcing body 241 and the first and second steel pipe portions 210 and 220 are connected to the inner surface of the second steel pipe portion 220, The bolts 50 for fastening the bolts 30 can be screwed. For example, eight female threaded portions 243 radially protrude from the outer circumferential surface of the circular reinforcing body 241, and a female screw hole 244 for fastening the bolt 50 is formed at an end thereof. The end of the female thread 243 is preferably formed to have a curved cross-section so as to contact the circular inner circumferential surface of the second steel pipe portion 220.

19 is an exploded perspective view of a frame connection structure using a steel pipe column and a beam connecting socket according to a third embodiment of the present invention.

19, the frame connection structure 3 according to the third embodiment of the present invention includes a steel pipe column and a beam connection socket 300 formed in the form of a rectangular internal reinforcing plate, And the bolt can be fastened to the beam.

The frame connection structure 3 according to the third embodiment of the present invention is characterized in that it comprises a steel pipe column and beam connection socket 300, upper and lower steel pipe columns 10 and 20, a beam 30, a fixing nut 40, (50).

The steel pipe column and the beam connecting socket 300 are formed in the shape of a rectangular internal reinforcing plate in which the inner reinforcing plate 320 is inserted into the rectangular steel pipe portion 310. The steel pipe column and beam connecting socket 300 according to the third embodiment of the present invention will be described later in detail with reference to FIG.

The lower steel pipe column 10 and the lower steel pipe column 20 are formed in a rectangular shape such as a rectangular steel pipe and the upper end of the upper steel pipe column 10 and the upper end of the lower steel pipe column 20 are connected to the upper And is coupled to the protruding portion 320a and the lower protruding portion 320b from outside. A plurality of bolt through holes 11 and 21 are formed in the lower end of the upper steel pipe column 10 and the upper end of the lower steel pipe column 20. [

A flat end plate 31 is welded so as to correspond to the outer surface of the rectangular steel pipe at the end portion thereof and the end plate 31 is disposed so as to contact the outer surface of the rectangular steel pipe portion 310, ). A plurality of bolt through holes 32 are formed in the end plate 31 of the beam 30. In the present embodiment, the beam having the H-shaped cross section is illustrated, but the present invention is not limited thereto, and beams having different cross sections can be applied.

A plurality of fixing nuts 40 (see FIG. 4) may be provided to prevent rotation of the inner reinforcing plate 320 before the inner reinforcing plate 320 is inserted into the rectangular steel pipe portion 310. That is, the fixing nut 40 is inserted into the rectangular steel pipe portion 310 together with the inner reinforcing plate 320 while being fixed to the inner reinforcing plate 320. The fixing nut 40 has a fitting portion (not shown) which is inserted into a nut fixing hole (not shown) formed on the inner surface of the inner reinforcing plate 320 and a fitting portion And an engaging portion (not shown) which is hooked on the inner surface of the inner reinforcing plate 320.

The bolts 50 pass through the side surfaces of the steel pipe columns 10 and 20 and the inner reinforcing plate 320 from the outside of the upper and lower steel pipe columns 10 and 20 and then are fastened to the fixing nut 40, The lower steel pipe columns 10 and 20 are fixed to the inner reinforcing plate 320 and the end plate 31, the square steel pipe portion 310 and the inner reinforcing plate 320 and then fixed to the fixing nut 40 so as to fix the beam 30 to the outer surface of the rectangular steel pipe portion 310.

20 is a perspective view of a steel pipe column and a beam connecting socket according to a third embodiment of the present invention.

20, the steel pipe column and beam connecting socket 300 according to the third embodiment of the present invention is formed of a rectangular inner reinforcing plate structure including a rectangular steel pipe portion 310 and an inner reinforcing plate 320 .

The steel pipe portion 310 may have a rectangular shape, for example, a rectangular steel pipe having a hollow closed end face passing through the inside thereof. In this embodiment, the steel pipe portion 310 is formed of a rectangular steel pipe. However, the present invention is not limited to this, and a polygonal steel pipe such as a triangular, pentagonal, or hexagonal pipe may be used.

A plurality of bolt through holes 311 penetrating the side surface of the steel pipe portion 310 are formed on the outer surface of the square steel pipe portion 310 so as to fasten the bolt 50 with the bolt 50. Preferably, the bolt through-holes 311 are formed in two rows on the side of the steel pipe 310 at regular intervals.

A plurality of inner reinforcing plates 320 are inserted into the rectangular steel pipe portions 310 to reinforce the inside of the steel pipe portions 310. The inner reinforcing plate 320 is formed in a plate shape and is divided into a plurality of portions along the inner surface of the rectangular steel pipe portion 310 and is arranged in a square shape such that a plurality of the inner reinforcing plates 320 correspond to the rectangular steel pipe portion 310 . For example, when the steel pipe portion 310 is a square steel pipe, the inner reinforcing plate 320 is formed of four rectangular plates and is disposed so as to be inserted into four inner side surfaces of the rectangular steel pipe. The inner reinforcing plate 320 protrudes from the upper end and the lower end of the rectangular steel pipe portion 310 so that the ends of the upper steel pipe column 10 and the lower steel pipe column 20 are connected to the upper end protrusion 320a of the inner reinforcing plate 320 And the lower protrusion 320b, respectively.

The inner reinforcing plate 320 has a plurality of bolt through holes 321 penetrating the side surface thereof. For example, a plurality of bolt through holes 321 through which the bolts 50 are inserted for fastening with the upper steel column 10 are formed in the upper protrusion 320a of the inner reinforcement plate 320, A plurality of bolt through holes 321 through which the bolts 50 are inserted for fastening with the lower steel pipe column 20 are formed in the lower protrusion 320b of the lower steel pipe column 320. [ The inner reinforcing plate 320 may have a bolt 50 for fastening the end plate 31, the rectangular steel pipe portion 310 and the inner reinforcing plate 320 of the beam 30 to the side surface corresponding to the steel pipe portion 310. [ A plurality of bolt through holes 321 penetrating through the through holes 321 are formed. The bolt through holes 321 formed in the inner reinforcing plate 320 are formed at positions corresponding to the bolt through holes 311 formed in the rectangular steel pipe portion 310.

Although not shown in the drawing, the inner reinforcing plate 320 may be filled with a filler to prevent deformation of the prismatic steel pipe portion 310 and the inner reinforcing plate 320 when tension and compression are generated. In addition, by forming a hollow hole in the filler material or forming a through hole through the upper and lower portions of the hollow hole, a part of the filler material is formed as an empty space, the weight of the member can be reduced, and it is economical and the workability can be improved. In addition, the reinforcing material is embedded in the filling material inside the inner reinforcing plate 320 to reinforce the strengths of the square-shaped steel pipe portion 310 and the inner reinforcing steel plate 320 so as to prevent deformation due to tension and compression in the steel pipe can do.

21 is an exploded perspective view of a frame connection structure using a steel pipe column and a beam connecting socket according to a fourth embodiment of the present invention.

21, the frame connecting structure 4 according to the fourth embodiment of the present invention includes a steel pipe column and a beam connecting socket 400 having a circular inner reinforcing plate shape, And the bolt can be fastened to the beam.

The frame connection structure 4 according to the fourth embodiment of the present invention is characterized in that the frame connection structure 4 includes a steel pipe column and a beam connection socket 400, upper and lower steel pipe columns 10 and 20, a beam 30, a fixing nut 40, (50).

The steel pipe column and the beam connecting socket 400 are formed in the shape of a circular inner reinforcing plate in which the inner reinforcing plate 420 is inserted into the circular steel pipe portion 410. The steel pipe column and beam connecting socket 400 according to the fourth embodiment of the present invention will be described later in detail with reference to FIG.

The upper steel pipe column 10 and the lower steel pipe column 20 are in the form of a round steel pipe and the lower end of the upper steel pipe column 10 and the upper end of the lower steel pipe column 20 are connected to the upper end protrusion 420a And the lower protrusion 420b, respectively. A plurality of bolt through holes 11 and 21 are formed in the lower end of the upper steel pipe column 10 and the upper end of the lower steel pipe column 20. [

The end face of the beam 30 is welded to correspond to the outer surface of the circular steel pipe and the end plate 31 is disposed so as to be in contact with the outer surface of the circular steel pipe portion 410, (50). A plurality of bolt through holes 32 are formed in the end plate 31 of the beam 30.

A plurality of fixing nuts 40 may be provided to prevent rotation of the inner reinforcing plate 420 before the inner reinforcing plate 420 is inserted into the circular steel pipe portion 410. That is, the fixing nut 40 is inserted into the round steel pipe portion 410 together with the inner reinforcing plate 420 while being fixed to the inner reinforcing plate 420.

The bolts 50 pass through the side surfaces of the steel pipe columns 10 and 20 and the inner reinforcing plate 420 from the outside of the upper and lower steel pipe columns 10 and 20 and then are fastened to the fixing nut 40, The lower steel pipe columns 10 and 20 are fixed to the inner reinforcing plate 420 and the end plate 31, the round steel pipe portion 410 and the inner reinforcing plate 420 and then fastened to the fixing nut 40 to fix the beam 30 to the round steel pipe portion 410. [

22 is a perspective view of a steel pipe column and a beam connecting socket according to a fourth embodiment of the present invention.

22, the steel pipe column and beam connecting socket 400 according to the fourth embodiment of the present invention is formed of a circular inner reinforcing plate structure including a circular steel pipe portion 410 and an inner reinforcing plate 420 . Since the fourth embodiment of the present invention is the same as the third embodiment described with reference to Figs. 19 to 20, except that the fourth embodiment is constituted by a circular internal reinforcing plate structure, It is omitted.

The steel pipe section 410 may be a circular steel pipe having a hollow closed end surface passing through the inside thereof. A plurality of bolt through holes 411 penetrating the side surface of the steel pipe portion 410 are formed on the outer surface of the round steel pipe portion 410 so as to fasten the bolt 50 with the bolt 50.

A plurality of inner reinforcing plates 420 are inserted into the round steel pipe portion 410 to reinforce the inside of the round steel pipe portion 410. The inner reinforcing plates 420 are arranged in a circular shape so as to correspond to the circular steel pipe portions 410. The inner reinforcing plates 420 are divided into a plurality of pieces along the inner surface of the circular steel pipe portion 410 . For example, when the steel pipe portion 410 is a circular steel pipe, the inner reinforcing plate 420 is composed of four curved rectangular plates and is disposed so as to insert four pieces in the circumferential direction of the inner circumferential surface of the circular steel pipe. The inner reinforcing plate 420 protrudes from the upper and lower ends of the circular steel pipe portion 410 so that the ends of the upper steel pipe column 10 and the lower steel pipe column 20 are connected to the upper end protrusion 420a of the circular inner reinforcing plate 420 And the lower protrusion 420b, respectively.

The inner reinforcing plate 420 has a plurality of bolt through holes 421 penetrating the side surface thereof. A plurality of bolt through holes 421 through which the bolts 50 for fastening with the upper steel column 10 are formed are formed in the upper end protrusion 420a of the inner reinforcement plate 420, 420 are formed with a plurality of bolt through holes 421 through which the bolts 50 are inserted for fastening with the lower steel pipe column 20. [ The inner reinforcing plate 420 has bolts 50 for fastening the end plate 31, the circular steel pipe portion 410 and the inner reinforcing plate 420 of the beam 30 to the side surface corresponding to the steel pipe portion 410 A plurality of bolt through holes 421 are formed. The bolt through hole 421 formed in the inner reinforcing plate 420 is formed at a position corresponding to the bolt through hole 411 formed in the round steel pipe portion 410.

Further, although not shown in the drawing, the inside of the circular internal reinforcing plate 410 may be filled with a filler to prevent deformation of the circular steel pipe portion 410 and the internal reinforcing plate 420 when tension and compression are generated. In addition, by forming a hollow hole in the filler material or forming a through hole through the upper and lower portions of the hollow hole, a part of the filler material is formed as an empty space, the weight of the member can be reduced, and it is economical and the workability can be improved. The strength of the circular steel pipe portion 410 and the inner reinforcing plate 420 may be adjusted so as to prevent the deformation of the steel pipe due to the tensile and compressive forces by installing a reinforcing material in the filler material inside the circular inner reinforcing plate 420 Can be reinforced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken in conjunction with the present invention. You will understand. It is therefore to be understood that the embodiments described above are in all respects illustrative and not restrictive. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10, 20: Columns
30: Bo
40: Fixing nut
50: Bolt
100, 200, 300: Steel pipe column and beam connection socket
110, 210: first steel pipe section
120, 220: second steel pipe section
130: filler
131: hollow hole
140, 240: stiffener
141, 241: Reinforcing body
143, 243: Female thread portion
310, 410: Steel pipe section
320, 420: internal reinforcing plate

Claims (20)

A first steel pipe portion at least one of which is coupled to the outer side surface; And
A second steel pipe portion inserted into the first steel pipe portion and protruding from the upper and lower ends of the first steel pipe portion and the end portions of the upper steel pipe column and the lower steel pipe column are respectively fitted and bolted to the upper and lower protrusions; Steel pipe posts and beam connecting sockets. The method according to claim 1,
Wherein the first steel pipe portion has a hollow closed end face passing through the inside thereof and the second steel pipe portion has a hollow closed end face contacting the inner side face of the first steel pipe portion and penetrating the inside thereof,
Wherein the first steel pipe portion and the second steel pipe portion are formed in a square or circular shape so as to correspond to each other. The method according to claim 1,
The steel pipe column and beam connecting socket
And a filling material filled in the second steel pipe part to prevent deformation of the first and second steel pipe parts. The method of claim 3,
Wherein the filler has a hollow hole formed therein or a through hole penetrating the upper and lower portions of the hollow hole to form a part of the filler as an empty space. The method of claim 3,
The steel pipe column and beam connecting socket
And a reinforcing member installed in the second steel pipe part so as to be embedded in the filler and reinforcing strength of the first and second steel pipe parts to prevent deformation due to generation of tension and compression, socket. 6. The method of claim 5,
The stiffener
A first reinforcement member fastened to the beam at a position corresponding to an upper portion of the first steel pipe portion within the second steel pipe portion and preventing deformation of the steel pipe due to a tensile force generated at an upper portion of the steel pipe by a load of the beam; And
And a second reinforcement member fastened to the beam at a position corresponding to a lower portion of the first steel pipe portion inside the second steel pipe portion and preventing deformation of the steel pipe due to a compressive force generated in the lower portion of the steel pipe due to the load of the beam Steel pipe posts and beam connecting sockets. 6. The method of claim 5,
The stiffener
A reinforcing body having a shape corresponding to the second steel pipe portion; And
A plurality of projections formed on a side surface of the reinforcing body and the bolts for fastening the first and second steel pipe sections to the first and second steel pipe sections in a state of being in contact with the inner surface of the second steel pipe section are screwed together Steel pipe posts and beam connecting sockets. 8. The method of claim 7,
The reinforcing body is formed in a rectangular pipe shape having an opening at the center thereof. When the second steel pipe is formed into a quadrangle, the reinforcing body is formed in the form of a square pipe having a pair of openings formed at each of square corners of the reinforcing body, Wherein the steel pipe column and the beam connecting socket are formed in the same shape. 8. The method of claim 7,
When the second steel pipe has a circular shape, the reinforcing body is formed in the shape of a circular pipe having an opening at the center, and a plurality of radially extending projections and a female screw hole are formed on the outer peripheral surface of the reinforcing body Features steel pipe posts and beam connecting sockets. A steel pipe portion at least one of which is coupled to the outer side surface; And
The upper and lower steel pipe columns are inserted into the inside of the steel pipe portion to reinforce the inside of the steel pipe portion and protrude from the upper and lower ends of the steel pipe portion, and the end portions of the upper steel pipe column and the lower steel pipe column are fitted and bolted to the upper and lower end projecting portions, respectively Steel pipe columns and beam connection sockets including internal reinforcement plates. 11. The method of claim 10,
Wherein the steel pipe section has a hollow closed end face passing through the inside thereof, the internal reinforcement plate is made of a plurality of plate materials arranged along the inner surface of the steel pipe section,
Wherein the steel pipe section and the inner reinforcing plate are formed in a square or circular shape so as to correspond to each other. 11. The method of claim 10,
The steel pipe column and beam connecting socket
And a filler filled in the inner reinforcing plate to prevent deformation of the steel pipe and the inner reinforcing plate. 13. The method of claim 12,
Wherein the filler has a hollow hole formed therein or a through hole penetrating the upper and lower portions of the hollow hole to form a part of the filler as an empty space. 13. The method of claim 12,
The steel pipe column and beam connecting socket
And a reinforcing member installed in the inside of the internal reinforcing plate so as to be embedded in the filler and reinforcing strength of the steel pipe portion and the internal reinforcing plate so as to prevent deformation due to generation of tension and compression, Connection socket. 15. The method of claim 14,
The stiffener
A first reinforcement member fastened to the beam at a position corresponding to an upper portion of the steel pipe portion inside the inner reinforcement plate and preventing deformation of the steel pipe due to a tensile force generated at an upper portion of the steel pipe by a load of the beam; And
And a second reinforcing member fastened to the beam at a position corresponding to a lower portion of the steel pipe portion inside the inner reinforcing plate and preventing deformation of the steel pipe due to a compressive force generated in the lower portion of the steel pipe due to the load of the beam. Posts and beam connecting sockets. 15. The method of claim 14,
The stiffener
A reinforcing body having a shape corresponding to that of the internal reinforcing plate; And
A plurality of projections formed on a side surface of the reinforcing body and the bolts for fastening the steel pipe portion and the inner reinforcing plate to the beam in a state of being in contact with the inner side surface of the inner reinforcing plate are screwed together Steel pipe posts and beam connecting sockets. 17. The method of claim 16,
When the inner reinforcing plate has a rectangular shape, the reinforcing body is formed in the shape of a rectangular pipe having an opening at the center, and the female screw portion is formed in each of the rectangular corners of the reinforcing body so as to protrude orthogonally to each other, Wherein the steel pipe column and the beam connecting socket are made of steel. 17. The method of claim 16,
When the inner reinforcing plate has a circular shape, the reinforcing body is formed in the shape of a circular pipe having an opening at the center, and a plurality of the female threaded portions protrude radially from the outer circumferential surface of the reinforcing body and a female screw hole is formed at an end Steel pipe columns and beam connection sockets. A steel pipe column and beam connecting socket according to any one of claims 1 to 9;
Upper and lower steel pipe columns respectively fitted into the upper and lower protrusions of the second steel pipe portion;
At least one beam disposed so that the end plate is in contact with the outer surface of the first steel pipe portion;
A plurality of fixing nuts fixed to the second steel pipe portion so as to prevent rotation before the second steel pipe portion is inserted into the first steel pipe portion; And
A first end of the end plate and a second end of the end plate, the end of the end portion of the end plate, the end of the end portion of the end plate, And a plurality of bolts inserted through the side surfaces of the first steel pipe section and the second steel pipe section and then fixed to the fixing nut to fix the beam to the first steel pipe section. 18. A steel pipe column and beam connecting socket according to any one of claims 10 to 18;
Upper and lower steel pipe columns respectively fitted to the upper and lower protrusions of the inner reinforcing plate;
At least one beam disposed so that the end plate is in contact with the outer surface of the steel pipe section;
A plurality of fixing nuts fixed to the inner reinforcing plate to prevent rotation of the inner reinforcing plate before the inner reinforcing plate is inserted into the steel pipe portion; And
A step of fixing the steel pipe column to the inner reinforcing plate by passing through the side of the steel pipe column and the inner reinforcing plate from the outside of the steel pipe column and then fastening the fixing nut to the end of the end plate, And a plurality of bolts penetrating through the side surface of the inner reinforcing plate and fixed to the fixing nut to fix the beam to the steel pipe portion.

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