KR101622165B1 - Concrete filled steel tube - Google Patents

Concrete filled steel tube Download PDF

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Publication number
KR101622165B1
KR101622165B1 KR1020150097036A KR20150097036A KR101622165B1 KR 101622165 B1 KR101622165 B1 KR 101622165B1 KR 1020150097036 A KR1020150097036 A KR 1020150097036A KR 20150097036 A KR20150097036 A KR 20150097036A KR 101622165 B1 KR101622165 B1 KR 101622165B1
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South Korea
Prior art keywords
column
base steel
portions
angles
coupling
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KR1020150097036A
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Korean (ko)
Inventor
강병구
김형섭
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(주)씨지스플랜
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Priority to KR1020150097036A priority Critical patent/KR101622165B1/en
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Publication of KR101622165B1 publication Critical patent/KR101622165B1/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions

Abstract

A concrete-filled composite column according to the present invention comprises a pair of column parts including: four angles arranged vertically on the ground with gaps therebetween to correspond to the edges of a column; four base steel plates arranged to correspond to the surface of the column and combined with a pair of angles among the four angles; and four connection parts arranged to correspond to the four angles, wherein the pair of column parts are vertically arranged and combined. The connection parts are included in at least one among the upper end and lower end of a corresponding angle, extend in the lengthwise direction of the angle from the corresponding angle and extend more outward than the base steel plates to be combined with the connection parts of an adjacent column part. The connection parts of an upper column part, which is arranged at an upper side among the pair of column parts, and the connection parts of a lower column part, which is arranged at a lower side, are arranged and combined to be in contact with each other without overlapping. Accordingly, a loss of the bearing capacity of steel, the amount of welding and the number of materials can be reduced significantly as the concrete-filled composite column can be joined using steel materials and steel plates.

Description

{CONCRETE FILLED STEEL TUBE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforced concrete structure, and more particularly, to a concrete filled type synthetic column that forms a column of a building.

The reinforced concrete structure is a structure that combines reinforcing steel with excellent tensile resistance and ductility, concrete with excellent compression resistance, formability, refractory performance and economical efficiency.

Concrete Filled Steel Tube (CFT), which is one of the reinforced concrete structures, is designed to use columns and columns that are placed up and down like bolts Most of them require joint construction.

FIG. 1 is a perspective view showing a conventional CFT column, FIG. 2 is a perspective view showing a structure of a CFT column shown in FIG. 1, and FIG. 3 is a cross- to be.

1 and 2, a conventional CFT column 10 has a pair of upper and lower unit posts 11 and 12 coupled through a joint W by welding as shown in FIG. 1 .

In this case, in order to secure the proof strength of the welded joint, the battens 13 are stuck to the joint portions as shown in Figs. 2 and 3, and then the entire reinforcing plate outer line is welded and reinforced.

In the conventional CFT column 10, the labor cost rises due to excessive welding, which causes the cost increase. In addition, since the thick plate 13, which is provided for securing the proof strength of the joint portions, is required to be thicker than the steel plates constituting the unit columns 11 and 12, the number of materials increases and the cost increases.

However, in the case of the CFT column, if the unit columns 11 and 12 are connected to each other, as shown in FIG. 1 (a) The cross section is closed as shown in Fig.

Figure 4 is a cross-sectional view of a conventional CFT column.

Referring to FIG. 4, in the case where a proof strength can not be secured due to the amount of steel outside the column in the conventional CFT joining method, the reinforcing bars 14 may be disposed inside the CFT column 10 as shown in FIG. In this case, the reinforcing bars 14 disposed inside the CFT column 10 are inevitably overlapped when the columns are joined.

5 is a view showing a connection structure between a conventional CFT column and a beam.

Referring to FIG. 5, the conventional CFT column 10 combines only the advantages of steel and concrete. Although the strength of the column itself is good, as shown in FIG. 1, .

In order to overcome this, a diaphragm 30 is installed on the CFT column 10. 5 (a) is a plan view showing a state where a diaphragm 30 is installed at a portion where the CFT column 10 and the beam 20 meet, FIG. 5 (b) is a plan view showing the CFT column 10 and the beam 20 And the diaphragm 30 are combined with each other.

The installation of the diaphragm 30 deteriorates the workability and increases the cost due to the increase of the material.

Korean Unexamined Patent Publication No. 10-2014-0032595 (Apr. 17, 2014) "Connection Structure of Concrete Filled Steel Plate Columns and Concrete Filled Steel Pipe Columns and Method of Connection Construction & Korean Registered Patent No. 10-1409418 (2014.06.12) "Steel pipe socket and connection method between steel pipe pile and steel pipe column using same"

It is an object of the present invention to provide a concrete filled type synthetic column which can efficiently perform column fitting using a steel sheet and an iron plate.

According to one aspect of the present invention, there is provided a concrete-filled composite column comprising four angles spaced from each other corresponding to corners of a column and arranged perpendicularly to the ground, Four base steel plates respectively coupled to a pair of angles adjacent to each other among the four angles and a pair of vertically arranged pillar portions each having four connection portions corresponding to the four angles, . Here, the connecting portion may be provided on at least one of an upper end and a lower end of a corresponding angle, extending from the corresponding angle in the longitudinal direction of the angle, and extending outwardly from the base steel plates, . In addition, the connecting portions of the upper pillar disposed on the upper side and the connecting portions of the lower pillar disposed on the lower side of the pair of pillar portions may be arranged so as to abut against each other without overlapping each other.

Further, the connection portions of the upper column portion and the lower column portion may be joined by welding.

A plurality of coupling plates provided corresponding to the coupling portions of the upper and lower pillars corresponding to each other and arranged on the outer surface of the coupling portion and each having a plurality of first coupling holes; And a plurality of fastening bolts connecting the coupling plate and a pair of coupling portions corresponding to the coupling plate. Here, the connecting portion has a plurality of second fastening holes, and the fastening bolts penetrate the first fastening holes and the second fastening holes to fasten the connecting portion and the fastening plate.

On the other hand, the composite column is disposed between the base steel plate of the upper column and the base steel plate of the lower column, and the both ends are coupled to a pair of connection portions adjacent to each other in the direction perpendicular to the longitudinal direction of the angle, It may further include a finish steel plate.

Further, the connecting portion may be provided integrally with the angle.

The column portion coupled to the beam may include an inner frame disposed inside the column portion and disposed at a position where the side end portion is coupled to the four base steel plates and is coupled to the beam have.

The base steel plates coupled to the inner frame may be formed with insertion grooves for fixing the inner frame by sandwiching the side end portions of the inner frame.

In addition, the inner frame and the base steel plate may be coupled to each other through welding of the base steel plate to a side end portion of the inner frame fitted in the insertion groove outside the base steel plate.

According to the concrete filled type synthetic column according to the embodiment of the present invention,

First, since the column can be joined using the steel material and the steel plate, the loss of the strength and the amount of welding of the steel material can be remarkably reduced.

Secondly, since it is not necessary to use a slab on the column joint portion, the cost can be reduced and the workability can be improved.

Third, since the pillars are provided with angles, it is not necessary to provide a separate reinforcing bar in the inside of the column, the lap joint process of the inner steel material can be omitted, and the loss of materials can be reduced.

Fourth, even if the joint plate is not installed, the next step can be performed immediately, so that the foundation can be shortened.

Fifth, it is possible to improve the bonding force between the concrete and the steel material by joining the pillars by using the fastening bolts, and to improve the bonding force between the fireproof sprayed material and the synthetic column, thereby preventing the dropping of the sprayed material.

Sixth, since the inner frame is provided at the portion connected to the beam, the strength of the beam can be effectively transmitted. Therefore, even if the thickness of the steel of the inner frame is as thin as the web thickness of the beam, sufficient strength can be transmitted.

Seventh, it is possible to transmit the strength of beam by using the inner frame, so it is not necessary to reinforce the column such as a plate or a diaphragm, and it is possible to reduce the welding amount of the main joint by more than half. , Which will enable the company to secure unit price competitiveness.

1 is a perspective view showing a conventional CFT column.
2 is a perspective view showing a structure in which a CFT column shown in FIG.
3 is a photograph showing a process of welding a plate to the CFT shown in FIG.
Figure 4 is a cross-sectional view of a conventional CFT column.
5 is a view showing a connection structure between a conventional CFT column and a beam.
6 is a perspective view illustrating a concrete-filled composite column according to an embodiment of the present invention.
7 is an exploded perspective view showing the composite column shown in Fig.
8 is an assembling process diagram showing the assembling process of the synthetic column shown in FIG.
9 is a perspective view showing a concrete-filled composite column according to another embodiment of the present invention.
10 is an exploded perspective view showing the synthetic column shown in Fig.
11 is an assembling process diagram showing the assembling process of the synthetic column shown in FIG.
12 is a perspective view illustrating a concrete-filled composite column according to another embodiment of the present invention.
13 is a partially exploded perspective view showing the composite column shown in Fig.
14 is an exploded perspective view showing the pillars shown in FIG.
15 is a cross-sectional view taken along a line I-I 'in Fig.
FIG. 16 is an exploded cross-sectional view showing the composite column shown in FIG. 15. FIG.
FIG. 17 is a perspective view showing a coupling relationship between the composite column and the beam shown in FIG. 12; FIG.
18 is a plan view showing the coupling relation between the composite column and the beam shown in Fig.
FIG. 19 is a perspective view showing a state in which concrete is filled in the synthetic column shown in FIG. 17; FIG.
20 is a perspective view showing an example in which the composite column shown in FIG. 17 is applied.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated.

FIG. 6 is a perspective view showing a concrete-filled composite column according to an embodiment of the present invention, and FIG. 7 is an exploded perspective view showing a composite column shown in FIG.

6 and 7, the concrete-filled composite pillar 100a of the present invention includes at least a pair of pillar portions 110a and 120a which are vertically disposed and coupled. For convenience of explanation, the column portion 110a located on the upper side of the pair of column portions 110a and 120a is referred to as an upper column portion 110a and the column portion 120a located on the lower side is referred to as a lower column portion 120a ).

The upper column portion 110a has four angles 111, four base steel plates 112, and four connecting portions 113.

Specifically, the four angles 111 are arranged to be spaced apart from each other corresponding to the corners of the column, and are arranged perpendicular to the ground. In this embodiment, each angle 111 has an arc-shaped portion bent at 90 degrees. Each of the angles 111 may further include a round rib 111a formed by bending both ends of the angle 111 by 90 degrees.

The four base steel plates 112 are arranged corresponding to the faces of the columns. Each of the base steel plates 12 is disposed perpendicular to the paper surface and is coupled to a pair of angles adjacent to each other among the four angles 111 to seal the inside of the upper column portion 110a.

The four connecting portions 113 are provided corresponding to the four angles 111 and are provided on at least one of the upper and lower ends of the corresponding angles. Each connecting portion 113 extends from the corresponding angle in the longitudinal direction of the angle, and extends outwardly from the base steel plate 112 and is engaged with the adjacent column portion.

In this embodiment, each connecting portion 113 is provided integrally with the corresponding angle, and has the same shape as the angle 111.

The lower pillar 120a has four angles 121, four base steel plates 122 and four connecting portions 123 like the upper pillar 110a. In this embodiment, the lower pillar 120a has the same configuration as the upper pillar 110a, and thus a detailed description thereof will be omitted.

The connection portion 113 of the upper column portion 110a and the connection portion 123 of the lower column portion 120a are arranged in a one-to-one correspondence with each other and the connection portion 113 of the corresponding upper column portion 110a and the connection portion 123 of the lower column portion 120a Are connected to each other. As a result, the upper column portion 110a and the lower column portion 120a are coupled to each other.

At this time, the connection part 113 of the upper column part 110a and the connection part 123 of the lower column part 120a are arranged so as not to overlap each other and are joined by welding.

Meanwhile, the composite column 100a of the present invention may further include a finishing iron plate 130. The finish steel plate 130 is disposed between the base steel plate 112 of the upper column portion 110a and the base steel plate 122 of the lower column portion 120a and has both ends perpendicular to the longitudinal direction of the angles 111 and 121 To the pair of connecting portions adjacent to each other in the direction of the connecting portion.

That is, the finishing iron plate 130 is provided at the connection portions 113 and 123 of the pillars 110a and 120a and is coupled to the outer surfaces of the connection portions 113 and 123. At this time, the finish steel plate 130 is welded to the connection portions 113 and 123, and the finish steel plate 130 is fully welded for continuity of the base steel plates 112 and 122.

One finishing iron plate 130 is joined to a pair of adjacent connecting portions 113 of the upper column portion 110a and a pair of connecting portions 123 of the corresponding lower column portion. Thus, one connection 113, 123 is coupled to the two finish steel plates 130.

In the concrete filled type synthetic column 100a of the present invention, the inside of the synthetic column 100a is sealed by the base steel plates 112 and 122 and the finished iron plate 130, and the continuity of the outer surface of the synthetic column 100a can be maintained .

8 is an assembling process diagram showing the assembling process of the synthetic column shown in FIG.

Referring to FIG. 8, first, a pair of pillars 110a and 120a are arranged vertically as shown in FIG. 8 (a). At this time, the connection portion 113 of the upper column portion 110a and the connection portion 123 of the lower column portion 120a are disposed so as to be opposed to each other so as not to overlap each other.

8 (b), the connection part 113 of the upper column part 110a and the connection part 123 of the lower column part 120a are joined to each other by welding to form the upper column part 110a and the lower part And the columnar portions 120a are coupled to each other.

When the pillars 110a and 120a are coupled to each other, the finishing iron plate 130 is disposed at a position where the connection portions 113 and 123 are provided as shown in FIG. 8 (c) Line is welded to the upper column portion 110a and the lower column portion 120a. As a result, the concrete-filled composite column 100a of the present invention is completed as shown in Fig. 8 (d).

As described above, the composite pillar 100a of the present invention can be pillar-joined using the steel materials 113 and 123 and the steel plate 130. [ Accordingly, the composite column 100a of the present invention can remarkably reduce the loss of strength and the welding amount of the steel material compared with the conventional CFT columns. In addition, since no slab is used, the cost can be reduced and the workability can be improved. In addition, since the composite pillar 100a of the present invention has the angles 111 and 112, it is not necessary to provide a separate reinforcing bar inside the pillar, so that the lap joint process of the internal steel material can be omitted, Can be reduced.

FIG. 9 is a perspective view showing a concrete filled type composite column according to another embodiment of the present invention, and FIG. 10 is an exploded perspective view showing a composite column shown in FIG.

9 and 10, the concrete-filled composite column 100b of the present invention includes a pair of column portions 110b and 120b, a plurality of coupling plates 140, and a plurality of fastening bolts 150 do.

A pair of pillars 110b and 120b are arranged vertically and coupled to each other. Hereinafter, the pillars 110b disposed on the upper side are referred to as upper pillars 110b and the pillars 110b arranged on the lower side And the lower pillar portion 120b is referred to as a lower pillar portion 120b.

The upper column portion 110b has four angles 111, four base steel plates 112, and four connecting portions 114. [ In this embodiment, the upper column portion 110b has the same configuration as the upper column portion 110a shown in FIG. 7 except for the four connecting portions 114, so that the upper column portion 110a of FIG. Are denoted by the same reference numerals, and a detailed description thereof will be omitted.

The four connecting portions 114 are provided corresponding to the four angles 111 and are provided on at least one of the upper and lower ends of the corresponding angles. Each connecting portion 114 extends in the longitudinal direction of the angle from the corresponding angle and extends outwardly from the base steel plate 112 and is engaged with the adjacent column portion.

In this embodiment, each connecting portion 114 is provided integrally with the corresponding angle, and has the same shape as the angle 111.

Like the upper column 110b, the lower column 120b has four angles 121, four base steel plates 122, and four connecting portions 124. In this embodiment, the lower column portion 120b has the same configuration as the upper column portion 110b, and a detailed description thereof will be omitted.

The connection part 114 of the upper column part 110b and the connection part 124 of the lower column part 120b are arranged in a one-to-one correspondence with each other and the connection part 113 of the corresponding upper column part 110a and the connection part 114 of the lower column part 120a Are coupled to the plurality of coupling plates 140 by a plurality of fastening bolts 150. At this time, the connecting portion 114 of the upper column portion 110b and the connecting portion 124 of the lower column portion 120b are disposed so as not to overlap with each other.

Specifically, each of the coupling plates 140 is provided corresponding to the coupling portion 114 of the upper column portion 110b and the coupling portion 124 of the lower column portion 120b, and the coupling portions 114 of the coupling portions 114 and 124 And is disposed on the outer surface. Here, one coupling plate 140 is coupled to the coupling portion 114 of the pair of upper pillars 110b and the coupling portion 124 of the lower pillars 120b, which correspond to each other. The coupling portions 114 of the pair of upper pillars 110b and the coupling portions 124 of the lower pillars 120b corresponding to each other are disposed adjacently to each other and arranged on different surfaces of the pillars, Lt; / RTI >

A plurality of first fastening holes 141 are formed in each coupling plate 140 and a plurality of first fastening holes 141 are arranged in the longitudinal direction of the coupling plate 140. A plurality of second fastening holes 114a and 124b are formed in the connecting portion 114 of the upper column portion 110b and the connecting portion 124 of the lower column portion 120b.

The fastening bolt 150 passes through the first fastening hole 141 and the second fastening holes 114a and 124a to fasten the coupling portions 114 and 124 and the coupling plate 140. Thereby, the upper column portion 110b and the lower column portion 120b are coupled to each other.

The composite column 100b of the present invention may further include a finishing iron plate 160. The finish steel plate 160 is disposed between the base steel plate 112 of the upper column portion 110b and the base steel plate 122 of the lower column portion 120b and is provided with a pair of engagement plates 140 . The finish steel plate 160 is joined to a pair of connection portions which are adjacent to each other in a direction perpendicular to the longitudinal direction of the angles 111 and 121 so as to seal between the connection portions.

That is, the finishing iron plate 160 is provided at the positions of the connecting portions 114 and 124 of the pillar portions 110b and 120b, and is coupled to the outer surfaces of the connecting portions 114 and 124. The finish steel plate 160 is welded to the connection portions 113 and 123 and the base steel plates 112 and 122 and the engaging plate 150. The finish steel plate 160 is joined to the base steel plates 112, 122). ≪ / RTI >

One finishing iron plate 160 is joined to a pair of adjacent connecting portions 114 of the upper column portion 110b and a pair of connecting portions 124 of the corresponding lower column portion. Thus, one connection 114, 124 is coupled to the two finish steel plates 160.

In the concrete filled type synthetic column 100b of the present invention, the inside of the synthetic column 100b is sealed by the base steel plates 112 and 122 and the finished iron plate 160, and the continuity of the outer surface of the synthetic column 100b can be maintained .

11 is an assembling process diagram showing the assembling process of the synthetic column shown in FIG.

Referring to FIG. 11, first, a pair of column portions 110b and 120b are arranged vertically as shown in FIG. 11 (a). At this time, the connecting portion 114 of the upper column portion 110b and the connecting portion 124 of the lower column portion 120b are disposed so as not to overlap each other.

11 (b), the connection portion 114 of the upper column portion 110b and the connection portion 124 of the lower column portion 120b are connected to the plurality of coupling plates 140 and the plurality of fastening bolts 150 So that the upper column portion 110b and the lower column portion 120b are coupled to each other. At this time, the head of the fastening bolt 150 is disposed outside the coupling plate 140.

When the pillars 110b and 120b are coupled to each other, the finishing iron plate 160 is disposed at a position where the connecting portions 114 and 124 are provided as shown in FIG. 11 (c) Line is welded to the upper column portion 110b and the lower column portion 120b. As a result, the concrete-filled composite column 100b of the present invention is completed as shown in Fig. 11 (d).

As described above, the composite pillar 100b of the present invention can be pillar-joined using the steel materials 114 and 124 and the steel plate 160. [ Accordingly, the composite column 100b of the present invention can remarkably reduce the loss of strength and the welding amount of the steel material compared with the conventional CFT columns. Since the composite pillar 100a of the present invention has the angles 111 and 112, it is not necessary to provide a separate reinforcing bar in the pillar, so that the lap joint process of the internal steel material can be omitted, Can be reduced. Since the pillar portions 110b and 120b are joined using the fastening bolts 150, the coupling force between the concrete and the steel material is improved, and the joining force between the fire-resisting sprayed material and the pillar portions 110b and 120b is improved, Can be prevented.

FIG. 12 is a perspective view showing a concrete-filled composite column according to another embodiment of the present invention, FIG. 13 is a partially exploded perspective view showing the composite column shown in FIG. 12, 15 is a cross-sectional view taken along a line I-I 'in FIG. 12, FIG. 16 is an exploded cross-sectional view showing a composite column shown in FIG. 15, FIG. 18 is a plan view showing a coupling relationship between the composite column and the beam shown in FIG. 17, and FIG. 19 is a perspective view showing a state where the composite column shown in FIG. 17 is filled with concrete.

12 to 14, the concrete-filled composite column 100c of the present invention includes at least a pair of column portions 110c and 120a which are vertically disposed. For convenience of explanation, the column portion 110c located on the upper side of the pair of column portions 110c and 120a is referred to as an upper column portion 110c and the column portion 120a located on the lower side is referred to as a lower column portion 120a ).

The upper column portion 110c has four angles 111, four base steel plates 115, four connecting portions 113, and an inner frame 116. [

Specifically, the four angles 111 are arranged to be spaced apart from each other corresponding to the corners of the column, and are arranged perpendicular to the ground. In this embodiment, the four angles 111 are the same as the four angles 111 of the upper column 110a shown in Fig. 7, and therefore, the same reference numerals are used and detailed explanations are omitted.

Four base steel plates 115 are joined to the four angles 111. The four base steel plates 115 are arranged corresponding to the surfaces of the columns. Each of the base steel plates 15 is arranged perpendicular to the paper surface and is coupled to a pair of angles adjacent to each other among the four angles 111 to seal the inside of the upper column portion 110c.

The four connecting portions 113 are provided corresponding to the four angles 111 and are provided on at least one of the upper and lower ends of the corresponding angles. In this embodiment, the four connecting portions 113 are the same as the four connecting portions 113 shown in Fig. 7, and therefore, the same reference numerals are given and detailed description is omitted.

The inner frame 116 is disposed in the inner space of the upper column portion 110c defined by the four angles 111 and the four base steel plates 115. [ The inner frame 116 is disposed at a position where the upper column 110c and the beam 200 are coupled as shown in FIG. 13 shows a state in which some components of the upper column portion 110c and the lower column portion 120a are separated and removed in order to clearly show the arrangement relationship between the inner frame 116 and the beam 200. FIG.

15 to 19, the inner frame 116 is made of a steel material, and the side end portions are joined to the four base steel plates 115. In particular, each of the base steel plates 115 is formed with an insertion groove 115a for engaging with the inner frame, and the inner frame 116 is inserted into the insertion groove 115a of the base steel plate 115, Respectively. The inner frame 116 is fixedly coupled to the base steel plate 115 through welding of the base steel plate 115 to the side end portion of the inner frame 116 fitted in the insertion groove 115a. At this time, the joining welding process of the inner frame 116 and the base steel plate 115 is performed outside the upper column portion 110c.

When viewed in plan, the inner frame 116 is provided in the shape of # as shown in Fig. The four angles 111 of the upper column 110c are disposed on the outer side of the inner frame 116 and the angles 111 are formed by two base steel plates 112 adjacent to each other inside the upper column 110c, Is disposed in an area defined by the inner frame (116). Here, since the angle 111 is provided with the round ribs 111a formed by being bent at 90 degrees at both ends, interference between the inner frame 116 and the angle 111 can be prevented.

In this embodiment, the inner frame 116 is provided in the shape of # when viewed in plan, but the shape of the inner frame 116 is not limited thereto.

In this embodiment, two insert grooves 115a are formed in each of the base steel plates 115 by the feature of the inner frame 116, but the insertion grooves 115a formed in the respective base steel plates 115 May be increased or decreased depending on the shape of the inner frame 116.

In this way, the composite column 100c of the present invention includes the inner frame 116 at the portion connected to the beam 200, so that the proof stress of the beam 200 can be effectively transmitted and the force flow can be continued. Further, even if the thickness of the steel material of the inner frame 116 is made as thin as the thickness of the web 200, sufficient strength can be transmitted, so that it is not necessary to reinforce the outer surface of the column such as a plate or a diaphragm. Accordingly, the synthetic column 100c of the present invention can reduce the welding amount of the main joint by more than half, and can reduce the material usage and the labor cost much more than the conventional ones, thereby ensuring the unit price competitiveness.

In this embodiment, the inner frame 116 is provided on the upper column portion 110c, but may be provided on the lower column portion 120a depending on the position where the beam 200 is connected. That is, the inner frame 116 is a member provided corresponding to the beam 200 and may be provided on the upper column part 110c or on the lower column part 120a depending on the position where the beam 200 is coupled have.

12 to 14, a lower pillar 120a is provided under the upper pillar 110c and is welded to the upper pillar 110c.

In this embodiment, the lower column portion 120a has the same configuration as the lower column portion 120a shown in FIG. 7, and therefore, a detailed description thereof will be omitted.

In this embodiment, the pillar portions 110c and 120a of the present invention are coupled by welding, but the pillar portions 110c and 120a are formed in a manner similar to that shown in Fig. 10 instead of the connecting portions 113 and 123 shown in Fig. And may be coupled by a plurality of coupling plates 140 and a plurality of fastening bolts 150 as shown in FIG. 9 with the illustrated coupling portions 114 and 124.

Meanwhile, the composite column 100c of the present invention may further include a finishing iron plate 130. The finish steel plate 130 is disposed between the base steel plate 112 of the upper column portion 110c and the base steel plate 122 of the lower column portion 120a and has both ends perpendicular to the longitudinal direction of the angles 111 and 121 To the pair of connecting portions adjacent to each other in the direction of the connecting portion.

19, the concrete 40 is installed inside the pillar portions 110c and 120a.

20 is a perspective view showing an example in which the composite column shown in FIG. 17 is applied.

Referring to FIGS. 19 and 20, since the reinforced concrete composite column 100c of the present invention replaces the function of the reinforcing bars by the steel members having the angles 111 and 121, the joining method of the inner steel member can not be overlapped The loss of steel can be drastically reduced. Accordingly, when the composite pillar 100c of the present invention is applied, the pillar can be assembled with bolts as shown in Fig. 20, and the next step can be carried out even without a joint plate, so that the construction foundation can be shortened .

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. It will be possible.

100a, 100b, 100c: Concrete filled type synthetic columns
110a, 110b, 110c, 120a, 120b:
111, 121: Angles 112, 122, 115: Base steel plate
113, 123, 114, 124: connection portion 116: inner frame
130, 160: finish steel plate 140: engaging plate
150: fastening bolt 200: beam

Claims (12)

Four base steel plates spaced apart from each other in correspondence with the corners of the column and arranged vertically with respect to the ground, four base steel plates arranged corresponding to the surfaces of the columns and respectively coupled to a pair of adjacent angles of the four angles, A pair of vertically disposed pillar portions each having four connecting portions corresponding to the four angles; And
And an outer surface of a connecting portion which is disposed between the base steel plate of the upper column and the base steel plate of the lower column and both ends thereof are adjacent to each other in a direction perpendicular to the longitudinal direction of each of the angles, Including a finished steel plate,
The connecting portion
A plurality of angles extending in a longitudinal direction of the angle from the corresponding angles and provided on at least one of an upper end and a lower end of a corresponding angle and joined to connection portions of adjacent column portions extending outwardly from the base steel plates,
The connecting portions of the upper column portion disposed on the upper side of the pair of column portions and the connecting portions of the lower column portion disposed on the lower side are arranged so as to be in contact with and not to overlap with each other,
Wherein the pillar portion of the pair of pillar portions,
Further comprising an inner frame provided in the column portion and having a side end portion coupled to the four base steel plates and disposed at a position to be engaged with the beam,
Wherein the base steel plates coupled to the inner frame are formed with insertion grooves for fixing the inner frame by sandwiching the side end portions of the inner frame,
Wherein the inner frame and the base steel plate are joined to each other through welding of the base steel plate to a side end portion of the inner frame fitted in the insertion groove outside the base steel plate. The method according to claim 1,
Wherein the connecting portions of the upper column portion and the connecting portions of the lower column portion are welded to each other. The method according to claim 1,
A plurality of coupling plates provided corresponding to coupling portions of the upper and lower pillars corresponding to each other and disposed on the outer surface of the coupling portion and each having a plurality of first coupling holes; And
And a plurality of fastening bolts coupling the coupling plate and a pair of coupling portions corresponding to the coupling plate,
Wherein the connection portion is formed with a plurality of second fastening holes,
Wherein the fastening bolt passes through the first fastening hole and the second fastening hole to fasten the connecting portion and the coupling plate. The method according to claim 2 or 3,
Further comprising a finish steel plate which is disposed between the base steel plate of the upper column and the base steel plate of the lower column and is joined to a pair of connection portions whose both ends are adjacent to each other in a direction perpendicular to the longitudinal direction of the angle, Wherein the reinforcing member is made of a synthetic resin. The method according to claim 1,
Wherein the connecting portion is integrally formed with the angle. delete delete delete delete The method according to claim 1,
The angle
Further comprising a rounded rib formed by bending both end portions thereof,
A portion bent at 90 占 forming the corner of the column portion and a portion bent to form the round rib are arc-
Wherein the reinforcing member is disposed in an area defined by two base steel plates adjacent to each other inside the column and the inner frame. The method according to claim 1,
The angle
And the portion bent at 90 degrees has an arc shape. 11. The method of claim 10,
The angle
And a round rib formed by bending both ends of the angle at an angle of 90 DEG.
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Publication number Priority date Publication date Assignee Title
KR20210077463A (en) * 2019-12-17 2021-06-25 주식회사 가우리안 Connecting structure for column and beam
WO2022161084A1 (en) * 2021-01-27 2022-08-04 海南大学 Fabricated concrete beam column joint and construction method therefor

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KR100235117B1 (en) * 1997-09-12 1999-12-15 김헌출 Ready-made steel net for r.c column and the executing method with it
KR101432260B1 (en) * 2013-02-28 2014-08-21 주식회사 액트파트너 Steel-exposed type steel framed reinforced concrete pillar
KR101523532B1 (en) * 2014-04-17 2015-05-28 주식회사 액트파트너 Closed steel assembly for column

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Publication number Priority date Publication date Assignee Title
KR100235117B1 (en) * 1997-09-12 1999-12-15 김헌출 Ready-made steel net for r.c column and the executing method with it
KR101432260B1 (en) * 2013-02-28 2014-08-21 주식회사 액트파트너 Steel-exposed type steel framed reinforced concrete pillar
KR101523532B1 (en) * 2014-04-17 2015-05-28 주식회사 액트파트너 Closed steel assembly for column

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Publication number Priority date Publication date Assignee Title
KR20210077463A (en) * 2019-12-17 2021-06-25 주식회사 가우리안 Connecting structure for column and beam
KR102352235B1 (en) * 2019-12-17 2022-01-18 주식회사 가우리안 Connecting structure for column and beam
WO2022161084A1 (en) * 2021-01-27 2022-08-04 海南大学 Fabricated concrete beam column joint and construction method therefor

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