KR102382352B1 - Composite column and composite column structure - Google Patents

Abstract

The present invention is an external pillar; an inner pillar part installed inside at a predetermined distance from the outer pillar part, and in which the uneven structure is repeated in the lateral direction; And, it provides a composite pillar comprising a; and a fireproof portion installed between the outer pillar and the inner pillar.

Description

A composite column and a composite column structure {COMPOSITE COLUMN AND COMPOSITE COLUMN STRUCTURE}

The present invention relates to a composite column having improved buckling performance and fire resistance performance, and a composite column structure.

It should be noted that the content described in this section merely provides background information on the present invention and does not constitute the prior art.

The column member of a building plays the most important role in supporting the structural system as a compression material that mainly shares the compressive force acting in the direction of gravity.

In addition, when vertical loads as well as axial loads, eccentricity of axial loads, wind loads, seismic loads, and horizontal loads such as collision and explosion loads are combined, bending due to the moment occurs and tensile force is generated in a part of the cross section of the column. Should be.

In the case of reinforced concrete columns, the main reinforcing bars are placed in the longitudinal direction of the load transfer direction, and band reinforcing bars or spiral reinforcing bars are used for the purpose of fixing the position of the main reinforcing bars and resisting buckling by horizontal loads.

Band reinforcing bars and spiral reinforcing bars are used for the purpose of enhancing the ductility and shear strength of columns, so they are called transverse reinforcing bars.

Steel pillars are made of steel to resist horizontal and vertical loads. H-beams (Rolled-H, Built-up H) are often used, and they are sometimes formed into square or round steel pipes.

Composite columns form columns by combining them with steel frame members or steel pipes, and CFT (Concrete-Filled Tube) is a column filled with concrete, and SRC (Steel-Reinforced Concrete) is a column synthesized by planting H-beam or steel tube members in a concrete column. ) is called

Columns are designed to maximize the usable area of building users by optimizing their size while retaining structural performance to resist compressive force, tensile force, bending strength due to eccentricity and lateral load, and moment. And, in the case of a high-rise building, the upper and lower pillars should be rigidly connected to form an integrated behavior.

In case of fire, the most important member in terms of the safety of the building structure is the column member, and in the case of a steel structure, because of its weakness to heat, coating materials such as fire-resistance paint or fire-resistance paint are applied to increase the fire resistance performance of the column.

The domestic fire resistance standards of building structures are divided into legal fire resistance structures and certified fire resistance structures, and they are applied to systems that have obtained fire resistance structure certification through performance tests, etc.

Fire-resistance design in Korea is carried out in accordance with the mandatory provisions of Article 40 of the Building Act and the provisions of Articles 56 and 53 of the Enforcement Decree of the Building Act for fire-resisting structures.

Article 3 of the Enforcement Decree specifies examples of fire-resistance structures, and stipulates that structures that do not fall under this category must undergo a separate fire-resistance test (KS F 2257-1) to receive individual recognition as fire-resistance structures.

The fire resistance performance is judged by the time in the test results (deformation, temperature), and standards are set according to the use, scale, and height of the building.

purpose Scale- Number of floors / highest height column member (Specification design)
cover thickness General, residential, commercial facilities 13th floor or more / 50m or more 3 hours 40 mm 5th to 12th floor / 20 to 50m 2 hours 30 mm 1st to 4th floor / less than 20m 1 hours 20 mm

KR 10-2002-0004747 A

An aspect of the present invention is to provide a composite column and a composite column structure that can maximize the structural performance against vertical and horizontal loads to reduce the size of the composite column and expand the use area.

An aspect of the present invention is to provide a composite pillar and a composite pillar structure that can improve the fire resistance performance of the composite pillar and facilitate vertical load connection.

As an aspect for achieving the above object, the present invention is an external pillar; an inner pillar part installed inside at a predetermined distance from the outer pillar part, and in which the uneven structure is repeated in the lateral direction; and a fire resistant part installed between the outer pillar part and the inner pillar part, wherein the inner pillar part forms a closed cross-section while connecting a plurality of concave-convex module plates in which the concave-convex structure is repeated in the lateral direction, and the A portion of the plurality of concave-convex module plates provides a composite pillar in direct contact with the inner circumferential surface of the outer pillar to support the inner circumferential surface of the outer pillar.

Preferably, the outer pillar portion is composed of a metal tube having a cross section of a polygonal shape with a hollow interior, and the inner pillar portion is a concave-convex module plate in which the concave-convex structure is repeated in the lateral direction on each side of the polygonal shape of the outer pillar portion, The concave-convex module plates adjacent to each other at the corners of the polygon may be connected to each other.

Preferably, the inner pillar portion, the concave-convex structure is repeated in the circumferential direction, may be composed of a tubular body with a hollow inside.

delete

Preferably, in the concave-convex module plate, an inner standing plate disposed close to the inner circumferential surface of the outer pillar part and a protruding plate disposed relatively far from the inner circumferential surface of the outer pillar part are alternately disposed, the inner standing plate and the protruding plate is connected by an inclined plate, and the concave-convex module plate is formed in a connecting portion of the adjacent concave-convex module plate, and is connected to the inner circumferential surface of the outer pillar part while spaced apart from the inner circumferential surface of the outer pillar part. A connection plate; may be provided.

Preferably, the horizontal connecting plate, and at least a portion of the inner standing plate disposed on the connecting portion of the adjacent uneven module plate, and the inclined plate may be formed while being horizontally spread.

Preferably, in the concave-convex module plate, an inner standing plate disposed close to the inner circumferential surface of the outer pillar part and a protruding plate disposed relatively far from the inner circumferential surface of the outer pillar part are alternately disposed, the inner standing plate and the protruding plate an inscribed plate connected to the slanted plate between the slanted plates, the concave-convex module plate being disposed at a connecting portion of the adjacent concave-convex module plate and joined to the inner peripheral surface of the corner of the outer pillar; and an inclined extension plate extending obliquely in a direction crossing the inscribed plate and extending relatively longer than the inclined plate.

Preferably, the fire resistant unit may be formed of a dry fire resistant material disposed in a space between the outer pillar and the inner pillar, and constructed in a dry manner.

Preferably, the fire resistant unit may include: a sheet-shaped fire resistant sheet material disposed in a space between the outer pillar and the inner pillar; and a fire-resistant hollow portion surrounded by the inner pillar and the fire-resistant sheet material.

Preferably, the fire resistant unit may further include a fire resistant concavo-convex material that is integrally formed with the fire resistant sheet material and is installed up to at least a partial area of the fire resistant hollow part.

Preferably, the fire resistant unit may be composed of a wet fire resistant material constructed in a wet manner so as to fill and harden the space between the outer pillar and the inner pillar.

Preferably, it is poured into the inside of the inner pillar portion and the concrete portion is reinforced with the inner pillar portion; may further include.

Preferably, it is installed through the inner pillar portion, spaced apart between the outer pillar portion and the inner pillar portion, the shear reinforcement portion embedded in the concrete; may further include.

As an aspect for achieving the above object, the present invention provides that the composite pillar is connected in the height direction, and the inner pillar part of any one side of the composite pillar connected in the height direction is inserted into the outer pillar part of the other side while adjacent It provides a composite pillar structure to which the composite pillar is connected.

According to an embodiment of the present invention, there is an effect of maximizing the structural performance for vertical load and horizontal load, thereby reducing the size of the composite column and expanding the usable area.

According to one embodiment of the present invention, the fire resistance performance of the composite column is improved, and there is an effect that can facilitate the vertical load connection.

1 is a perspective view of a composite column according to an embodiment of the present invention.
Figure 2a is a plan view of a composite column according to an embodiment of the present invention.
Figure 2b is a plan view of a composite column according to another embodiment of the present invention.
Figure 3a is a plan view of a composite column according to another embodiment of the present invention.
Figure 3b is a plan view of a composite column according to another embodiment of the present invention.
4 is a plan view of a composite column according to another embodiment of the present invention.
Figure 5a is a perspective view of an exploded state of the composite column structure according to an embodiment of the present invention.
Figure 5b is a perspective view of the combined state of the composite column structure according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiment of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. In addition, the embodiments of the present invention are provided in order to more completely explain the present invention to those of ordinary skill in the art. The shapes and sizes of elements in the drawings may be exaggerated for clearer description.

Hereinafter, the composite pillar 10 according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4 .

The composite pillar 10 according to an embodiment of the present invention includes an external pillar part 100 , an internal pillar part 200 , and a fireproof part 300 , and additionally a concrete part 400 and a shear reinforcement part 500 . ) may be included.

Referring to FIG. 1 , the composite pillar 10 has an external pillar part 100 and an internal pillar part 200 in which the external pillar part 100 and the external pillar part 100 are installed at a predetermined interval, and the concave-convex structure is repeated in the lateral direction. ) and a fire resistant part 300 installed between the external pillar part 100 and the inner pillar part 200 .

Referring to FIG. 1 , the external pillar 100 may be configured as a tubular body having a hollow interior.

The external pillar 100 may be formed to extend in the longitudinal direction, and may be composed of a tubular body made of a metal material such as steel having a polygonal or circular shape in the transverse direction.

The outer pillar 100 may be made of a steel pipe having a cross section of a rectangular shape with a hollow inside.

Referring to FIG. 1 , the inner pillar 200 may be installed inside the outer pillar 100 , and the inner pillar 200 and the outer pillar 100 may be disposed to be spaced apart from each other by a predetermined interval.

A separation space S1 is formed between the inner pillar 200 and the outer pillar 100 , and the fire resistant unit 300 may be installed in the separation space S1 .

The inner pillar 200 may be composed of a tubular body in which the concave-convex structure is repeated in the lateral direction, and the inside is hollow.

The inner pillar 200 is disposed inside the outer pillar 100 and the uneven structure is repeated, so that vertical loads such as self-weight acting on the composite pillar 10 and horizontal loads such as wind loads and earthquake loads are supported. can play a role in improving

For example, the inner pillar 200 may be composed of a corrugated steel pipe in which the concave-convex structure is repeated in the lateral direction.

The inner pillar 200 is disposed around the inner circumferential surface of the outer pillar 100, and the concrete portion 400 may be formed in the pouring space S2 inside the inner pillar 200 while the concrete is poured and hardened. .

Referring to FIG. 1 , the fire resistant part 300 is disposed between the external pillar part 100 and the inner pillar part 200 , and heat transferred from the outside of the external pillar part 100 due to a fire or the like is transferred to the internal pillar. It may serve as a fireproofing material that blocks transmission to the unit 200 .

The fire resistant unit 300 is installed in the separation space S1 formed between the inner pillar 200 and the outer pillar 100 to improve the fire resistance performance of the composite pillar 10 .

Referring to FIGS. 2A to 4 , the outer pillar 100 is composed of a metal tube having a hollow polygonal cross section, and the inner pillar 200 has a polygonal shape of the outer pillar 100 . A concave-convex module plate 200M in which the concave-convex structure is repeated in the lateral direction is disposed on each side of the , and the concave-convex module plates 200M adjacent to each other at the corners of the polygons may be connected to each other.

Referring to FIG. 1 , the inner pillar 200 may be configured as a tubular body in which the concave-convex structure is repeated in the circumferential direction and hollow inside.

The inner pillar 200 may be formed of a concave-convex structure formed continuously in the circumferential direction, and a concave-convex tube having a hollow inside.

2A to 4 , the inner pillar 200 may include a plurality of concave-convex module plates 200M in which the concave-convex structure is repeated in the lateral direction may be connected to each other.

A concave-convex module plate 200M is disposed on each side of the polygonal shape of the external pillar 100 , and a plurality of concave-convex module plates 200M may be connected to each other.

A plurality of concave-convex module plates 200M may be connected to each other to form a closed cross-section, and the inside of the closed cross-section may be utilized as a pouring space S2 for pouring the concrete part 400 .

Concave-convex module plate 200M, an inner standing plate 210 disposed close to the inner circumferential surface of the outer pillar 100, and a protruding plate 230 disposed relatively far from the inner circumferential surface of the outer pillar 100 alternately is arranged, and between the inner standing plate 210 and the protruding plate 230 may be connected by a swash plate 250 .

Referring to the enlarged portion of FIG. 3A , the plurality of concave-convex module plates 200M may be joined while forming a welding portion W by welding with the external pillar portion 100 .

The adjacent concave-convex module plate 200M may have lateral end portions welded to each other, and a connection portion of the adjacent concave-convex module plate 200M may be welded together with the external pillar 100 .

As an example, when the outer pillar 100 is composed of a polygonal tube having a polygonal cross-section, a connection portion of two adjacent concave-convex module plates 200M and a corner portion of the polygonal tube may be welded together.

2A to 4 , when the outer pillar part 100 is composed of a square tube having a rectangular cross section, the four uneven module plates 200M are welded at the four corners of the square tube. there is.

In addition, the connecting portion of the two adjacent concave-convex module plates 200M and the corner portion of the square tube may be welded together.

Referring to Figure 3a, the uneven module plate 200M, the inner standing plate 210 disposed close to the inner circumferential surface of the outer pillar portion 100, and the outer pillar portion 100 is disposed relatively far from the inner circumferential surface The protruding plates 230 may be alternately disposed, and the inner standing plate 210 and the protruding plate 230 may be connected by an inclined plate 250 .

At this time, the concave-convex module plate 200M is formed in the connecting portion of the adjacent concave-convex module plate 200M, and is connected to the inner circumferential surface of the external pillar part 100 while connecting a plurality of the inner standing plates 210 to the external pillar part. A horizontal connecting plate 270 spaced apart from the inner circumferential surface of 100 may be provided.

By bonding the horizontal connecting plate 270 disposed at the connecting portion of the adjacent concave-convex module plate 200M with the external pillar 100, the plurality of inner standing plates 210 are formed on the inner circumferential surface of the external pillar 100. They may be spaced apart.

Referring to the enlarged portion of FIG. 3A , the horizontal connecting plate 270 is formed with at least a portion of the inner standing plate 210 disposed at the connecting portion of the adjacent concave-convex module plate 200M and the inclined plate 250 horizontally. It can be formed as it unfolds.

The horizontal connecting plate 270 may be formed while at least a portion of the inner standing plate 210 and the inclined plate 250 disposed at the connection portion of the adjacent concave-convex module plate 200M are horizontally spread out, and the horizontal connecting plate An end of the 270 may be connected to the external pillar 100 by welding or the like.

The horizontal connecting plate 270 disposed at the transverse end of the uneven module plate 200M may be joined while forming a welding portion W at the corner portion of the inner peripheral surface of the external pillar 100 .

Accordingly, the plurality of inner standing plates 210 disposed in portions other than the transverse end of the uneven module plate 200M may be spaced apart from the inner circumferential surface of the external pillar 100 at a predetermined interval, and spaced apart ( S1) may be cured by filling the wet refractory material 302 in a wet manner.

At this time, the separation distance of the plurality of inner standing plates 210 disposed closest to the inner circumferential surface of the outer pillar 100 may be configured to meet the minimum coating thickness capable of exhibiting the fire resistance performance of the filled wet fire resistant material 302 .

Referring to Figure 3b, the uneven module plate 200M, the inner standing plate 210 disposed close to the inner circumferential surface of the outer pillar portion 100, and the outer pillar portion 100 is disposed relatively far from the inner circumferential surface The protruding plates 230 may be alternately disposed, and the inner standing plate 210 and the protruding plate 230 may be connected by an inclined plate 250 .

At this time, the concave-convex module plate 200M is disposed at a connection portion of the adjacent concave-convex module plate 200M, and the inscribed plate 280 is joined to the inner circumferential surface of the corner portion of the external pillar 100, and the inscribed plate It is formed to extend obliquely in a direction intersecting at 280 , and may include an inclined extension plate 290 that is relatively longer than that of the inclined plate 250 .

The inclined extension plate 290 is formed to extend obliquely in a direction intersecting the inscribed plate 280, and is formed to be relatively longer than the inclined plate 250 so as to attach a plurality of the inner standing plates 210 to the external pillars 100. ) can be separated from the inner circumferential surface.

That is, the inscribed plate 280 and the inclined extension plate 290 may be installed in the longitudinal end portion of the connection module plate to be connected to the external pillar part 100 .

As the inclined extension plate 290 is formed to have a relatively longer length than the plurality of inclined plates 250 installed on the uneven module plate 200M, the plurality of inclined plates 250 are formed on the inner circumferential surface of the external pillar 100 by a predetermined length. It may be installed to be spaced apart from each other, and the wet refractory material 302 may be filled and cured in the spaced part by a wet method.

In this case, the separation distance between the plurality of swash plates 250 and the inner circumferential surface of the external pillar 100 may be configured to satisfy the minimum coating thickness capable of exhibiting the fire resistance performance of the wet fire resistant material 302 to be filled.

In the adjacent connection module plates, the inscribed plates 280 may be connected to each other, or the inclined extension plates 290 may be connected to each other by welding or the like. Of course, the inscribed plate 280 and the inclined extension plate 290 may be connected by welding, respectively.

Referring to FIGS. 2A and 2B , the fire resistant part 300 is disposed in a space S1 between the external pillar part 100 and the inner pillar part 200, and is constructed in a dry manner. It may be made of a refractory material 301 .

In the fire resistant unit 300 , a dry fire resistant material 301 such as a fiber type, a blanket type, a board type, or a block type may be installed.

The fire resistant unit 300 is composed of a sheet type fire resistant sheet or board type fire board composed of fibers (FiBER), a blanket, etc. disposed between the outer pillar unit 100 and the inner pillar unit 200 . can be

Although not shown, in the fire resistant unit 300 , a plurality of fire resistant blocks may be disposed between the outer pillar 100 and the inner pillar 200 .

For example, the fire resistant sheet material 310, such as a fire resistant blanket constructed by a dry method, may be composed of, and the fire resistant sheet material 310 may be composed of a fire resistant fiber film.

Referring to FIG. 2A, the fire resistant unit 300 includes a sheet-shaped fire resistant sheet material 310 disposed in a space S1 between the outer pillar 100 and the inner pillar 200, and, A fireproof hollow portion 330 surrounded by the inner pillar 200 and the fireproof sheet material 310 may be provided.

The fire resistant sheet material 310 is constructed by a dry method, and the fire resistant sheet material 310 may be composed of a film-type fire resistant fiber film.

The fire resistant sheet material 310 may be disposed in a partial region of the separation space S1 , and the fire resistant hollow portion 330 may be a portion of the separation space S1 excluding the installation portion of the fire resistant sheet material 310 .

The fireproof hollow part 330 may be composed of an empty space filled with air or the like.

Referring to FIG. 2B , the fire resistant unit 300 may further include a fire resistant concavo-convex material 350 integrally formed with the fire resistant sheet material 310 and installed up to at least a partial area of the fire resistant hollow part 330 . can

The refractory uneven material 350 may be installed in at least a partial area of the refractory hollow part 330 .

As an example, referring to FIG. 2B , the fire resistant uneven material 350 may be installed up to the entire area of the fire resistant hollow part 330 .

As another example, although not shown, the fire resistant uneven material 350 may be installed up to a partial area of the fire resistant hollow part 330 .

3A to 4 , the fire resistant part 300 is a wet fire resistant material constructed in a wet manner so as to fill and harden the space S1 between the outer pillar 100 and the inner pillar 200 . (302).

For example, the wet refractory material 302 may be composed of refractory mortar or refractory concrete mixed with a heat-resistant reinforcing material.

2A to 4 , the composite pillar 10 may further include a concrete portion 400 that is poured into the inner pillar portion 200 and is strongly compounded with the inner pillar portion 200 .

Structural performance such as buckling rigidity can be greatly improved as the internal pillar 200 and the concrete part 400 having the concave-convex structure are strongly composited.

As the contact area with the concrete part 400 increases due to the uneven structure of the internal pillar 200 , the composite force between the internal pillar 200 and the concrete part 400 may be improved.

Referring to FIG. 4 , the composite pillar 10 is installed through the inner pillar portion 200 , and spaced apart between the outer pillar portion 100 and the inner pillar portion 200 , and the concrete portion 400 . ) may further include a shear reinforcement part 500 embedded in the.

The shear reinforcement unit 500 may be installed over the inside and outside of the inner pillar 200 through the inner pillar (200).

The shear reinforcement part 500 is in contact with the inner circumferential surface of the external pole part 100 from the outside of the internal pole part 200 while securing a space S1 between the external pole part 100 and the inner pole part 200. can play a role

The shear reinforcement part 500 is embedded in the concrete part 400 in the interior of the inner pillar part 200, and may serve to improve the synthesis force with the concrete.

Next, the composite column 10 structure will be described in detail with reference to FIGS. 1 to 5B .

5A and 5B, in the structure of the composite pillar 10, the composite pillar 10 is connected in the height direction, and the inner pillar part 200 on either side of the composite pillar 10 is connected in the height direction. ) is inserted into the external pillar part 100 on the other side, and the adjacent composite pillar 10 may be connected.

The inner pillar part 200 of either side of the two synthetic pillars 10 connected in the height direction may be formed to protrude into the inside of the outer pillar part 100, and the other side to which the protruding inner pillar part 200 is connected. The two composite pillars 10 may be connected while being inserted into the external pillar portion 100 of the composite pillar 10 of the

The first composite pillar 11 disposed on the upper portion has an inner pillar portion 200 protruding downward, and the second composite pillar 12 disposed on the lower portion has an inner pillar portion in the upper region of the outer pillar portion 100 . 200 is not installed, and the inner pillar 200 of the first composite pillar 11 may be inserted into this portion.

In a state in which the first composite pillar 11 and the second composite pillar 12 are connected, the inner pillar portion 200 of the first composite pillar 11 and the inner pillar portion 200 of the second composite pillar 12 are It can be installed continuously in the height direction.

In addition, it goes without saying that various embodiments of the composite pillar 10 having the various embodiments described above may be applied to the composite pillar 10 structure of the present invention.

Accordingly, the composition of the composite pillar 10 used in the structure of the composite pillar 10, such as the outer pillar 100, the inner pillar 200, the fire resistant unit 300, and the like of the composite pillar 10, as already described. Since the configuration is the same, a detailed description thereof will be omitted to avoid duplication.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and variations are possible within the scope without departing from the technical spirit of the present invention described in the claims. It will be apparent to those of ordinary skill in the art.

10: composite column 11: first composite column
12: second composite column 100: external column part
200: inner pillar 200M: uneven module plate
210: inner standing plate 230: protruding plate
250: inclined plate 270: horizontal connecting plate
280: inscribed plate 290: inclined extension plate
300: refractory unit 301: dry refractory material
302: wet refractory material 310: refractory sheet material
330: refractory hollow part 350: refractory irregularities
400: concrete part 500: shear reinforcement part
S1: Separation space S2: Pour space
W: Weld

Claims (14)

external pillar;
an inner pillar part installed inside at a predetermined distance from the outer pillar part, and in which the uneven structure is repeated in the lateral direction; and,
Including;
The inner pillar portion,
A plurality of concave-convex module plates in which the concave-convex structure is repeated in the lateral direction are connected to each other to form a closed section,
A portion of the plurality of concave-convex module plates is a composite pillar in direct contact with the inner circumferential surface of the outer pillar to support the inner circumferential surface of the outer pillar.
According to claim 1,
The outer pillar part is composed of a metal tube having a polygonal cross-section with a hollow inside,
The inner pillar portion,
A composite column, characterized in that the concave-convex module plate having the concave-convex structure repeating in the lateral direction is disposed on each side of the polygonal shape of the outer pillar, and the concave-convex module plates are connected to each other at the corners of the polygon.
According to claim 1, wherein the inner pillar portion,
A composite column, characterized in that the concave-convex structure is repeated in the circumferential direction, and is composed of a hollow tubular body.
delete According to claim 1, wherein the uneven module plate,
An inner standing plate disposed close to the inner circumferential surface of the outer pillar portion and a protruding plate disposed relatively far from the inner circumferential surface of the outer pillar portion are alternately disposed, and between the inner standing plate and the protruding plate is connected by an inclined plate,
The uneven module plate,
A composite column comprising a; a horizontal connecting plate formed on a connecting portion of the adjacent concave-convex module plate and spaced apart from the inner peripheral surface of the external column part while being connected to the inner peripheral surface of the external column part.
According to claim 5, wherein the horizontal connecting plate,
Composite column, characterized in that the at least a portion of the inner standing plate disposed on the connection portion of the adjacent concave-convex module plate, and the swash plate is formed while being horizontally spread.
According to claim 1, wherein the uneven module plate,
An inner standing plate disposed close to the inner circumferential surface of the outer pillar portion and a protruding plate disposed relatively far from the inner circumferential surface of the outer pillar portion are alternately disposed, and between the inner standing plate and the protruding plate is connected by an inclined plate,
The uneven module plate,
an inscribed plate disposed on a connecting portion of the adjacent concave-convex module plate and joined to an inner circumferential surface of a corner portion of the outer pillar; and,
A composite pillar having a; inclined extension plate extending in a direction intersecting the inscribed plate and extending relatively longer than the inclined plate.
According to claim 1, wherein the fire resistant unit,
Synthetic pillar, characterized in that it is arranged in the space between the outer pillar and the inner pillar, and composed of a dry refractory material constructed in a dry manner.
According to claim 1, wherein the fire resistant unit,
a sheet-shaped fire resistant sheet material disposed in a space between the outer pillar and the inner pillar; and,
A composite pillar having a; fire-resistant hollow portion surrounded by the inner pillar portion and the fire-resistant sheet material.
10. The method of claim 9, wherein the fire resistant unit,
The composite pillar further comprising a; fire-resisting uneven material configured integrally with the fire-resisting sheet material and installed up to at least a partial area of the fire-resistant hollow part.
According to claim 1, wherein the fire resistant unit,
Synthetic column, characterized in that it is composed of a wet refractory material constructed by a wet method so as to fill and harden the space between the outer pillar and the inner pillar.
According to claim 1,
The composite column further comprising; a concrete part that is poured into the inner column part and is strongly compounded with the inner column part.
13. The method of claim 12,
The composite pillar further comprising a; is installed through the inner pillar portion, spaced apart between the outer pillar and the inner pillar portion, the shear reinforcement is embedded in the concrete portion.
The synthetic column according to any one of claims 1 to 3 and 5 to 13 is connected in the height direction,
A composite pillar structure in which the adjacent composite pillars are connected while the inner pillar portion of one side of the composite pillars connected in the height direction is inserted into the outer pillar portion of the other side.

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