KR101566992B1 - Assembly typed cft column structure - Google Patents
Assembly typed cft column structure Download PDFInfo
- Publication number
- KR101566992B1 KR101566992B1 KR1020150079242A KR20150079242A KR101566992B1 KR 101566992 B1 KR101566992 B1 KR 101566992B1 KR 1020150079242 A KR1020150079242 A KR 1020150079242A KR 20150079242 A KR20150079242 A KR 20150079242A KR 101566992 B1 KR101566992 B1 KR 101566992B1
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- South Korea
- Prior art keywords
- shell
- reinforcing bar
- pair
- vertical
- column structure
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- 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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rod-Shaped Construction Members (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The present invention relates to a column structure for constructing a CFT column by filling a concrete in an enclosed space inside, wherein a pair of long-side outer plates and a pair of other short-side outer plates are assembled by welding to form a box- Wherein a pair of outer shells of the outer shell of the long side and the shell shell of the short side shell are thicker than a pair of other shell shells of the remaining shells, And a vertical reinforcing member to be embedded in the concrete to be filled in the vertical reinforcing member.
Description
BACKGROUND OF THE
The plan to increase the land use rate due to the rise in land prices is changing the tendency to construct a vertical structure of two or more layers of multi-storey structures that previously had constructed buildings such as factories and warehouses with single-storey horizontal structures.
However, the application of the steel frame structure of the H-shaped steel, which has been generally applied to the horizontally structured structures of the single layer, to the multi-layered structures such as the vertical structure, There is a problem in that the amount of steel material used is increased and the amount of fireproof construction is greatly increased, resulting in poor economical efficiency. In addition, there are problems that the space utilization rate is low and vulnerable to vibration.
On the other hand, members of the CFT structure constituted by charging concrete into steel pipes previously prepared by roll forming have attracted attention because they exhibit high rigidity at low cost.
The above-mentioned CFT structure can increase the compressive strength by restricting the concrete by restraining the steel pipe, and the concrete can reduce the local buckling of the steel pipe, thereby greatly improving the strength, fire resistance and workability as well as reducing the cross- It can be said that it is very economical.
However, the steel pipes used in the general CFT structure are integrally manufactured. In the case of using the steel pipe as a column member, a diaphragm is usually installed to join the steel to the steel.
Such a diaphragm is divided into an inner diaphragm to be inserted into a steel pipe, an outer diaphragm provided on the outer surface of the steel pipe in an outer shape, and a through diaphragm to penetrate the steel pipe, and an inner diaphragm In order to install the penetrating diaphragm, it is necessary to perform a separate processing step such as cutting the steel pipe, so there is a problem in the precision of the reassembling. In the case of the external diaphragm, the construction error due to the verticalness of the column is corrected There is a problem in that the construction is very cumbersome because it needs to be cut and installed.
In addition, it is difficult to dispose the reinforcing bars for reinforcing the concrete in the steel pipe integrally manufactured therein, so there is a limit to increase the strength against the same cross section.
On the other hand, there is a fear that a slip phenomenon may occur between the steel pipe and the concrete filled in the steel pipe. Various methods for installing the shear joint material therein have been studied, for example, in Registration No. 10-1203729 Quot; a steel pipe for filling with steel pipe body rigidity increasing means "
As shown in FIG. 7, the steel pipe includes a
The steel pipe according to the prior art is provided with the rigidity enhancing means 12 while expecting the effect that the filling material (concrete) and the steel pipe are integrated with each other through the
The present invention has been made to solve the problems of the prior art described above, and it is an object of the present invention to provide a pillar structure capable of ensuring complete integrity between the column structure and concrete, facilitating a tight filling of the concrete inside the column structure, The present invention has been made in view of the above problems.
Further, the present invention facilitates the placement of vertical reinforcing bars that can share the axial force generated on the pillars while reinforcing the inner concrete, thereby reducing the cross-section of the pillars, and having a strong bonding structure with the beam structure, The present invention has another object to provide a column structure capable of reducing the number of column structures.
According to a most preferred embodiment of the present invention for solving the above problems, there is provided a column structure for constructing a CFT column having a cross section of a square steel box, wherein a pair of long-side outer plates and a pair of short- And a pair of the outer sheaths of the outer sheath and the short-side outer sheath are thicker than a pair of the other outer sheaths, and the long-side outer sheath and the short- Wherein the pair of outer plates is provided with a vertical reinforcing member to be embedded in the concrete filled in the closed space.
According to another embodiment of the present invention, the vertical reinforcement body comprises a vertical reinforcing bar spaced from the outer plate, and a connecting reinforcing bar connecting the vertical reinforcing bar and the outer panel.
According to another embodiment of the present invention, the vertical reinforcement body is constructed such that one connecting reinforcing bar is attached to only one side of the vertical reinforcing bars on the transverse section of the vertical reinforcing body.
According to another embodiment of the present invention, the connecting reinforcing bars are formed in a shape in which the convex portions and the concave portions are continuous, and the vertical reinforcing bars are attached to the side surfaces of the connecting reinforcing bars at positions spaced inward from the ends of the convex portions of the connecting reinforcing bars Wherein the CFT column structure includes a plurality of CFT columns.
According to another embodiment of the present invention, both end portions of the outer shell having a thicker thickness than those of the shell having the longer side and the shell having the shorter side are formed to protrude from the outer side of the shell having a smaller thickness,
Shaped CFT column structure is provided.
The column type structure of the present invention can be different in cross section to each side so that it can efficiently cope with the kind and direction of stress and minimizes the cross section of the column through the vertical reinforcing steel to share the axial force, .
In addition, the column structure according to the present invention constitutes a vertical reinforcement body using an inexpensive reinforcing bar, and a large opening is formed between the angles of the connection reinforcing bars to achieve a tight filling of the concrete, and anchoring of the vertical reinforcement body It is possible to have a perfect integrity between the column structure and the concrete, thereby making it possible to construct high quality columns having excellent vibration resistance and fire resistance.
Further, the column structure according to the present invention allows symmetrical placement of vertical reinforcing bars while overlapping the vertical reinforcing bars provided on the opposing outside sheathing, so that it has a uniform strength against each cross section of the column, It is possible to have a stable steel joint structure with respect to a horizontal member such as a beam structure without installing it.
FIG. 1 is an exploded perspective view for explaining the entire structure of a CFT column structure according to an embodiment of the present invention.
2 is a cross-sectional view showing specific embodiments of the column structure.
3 is a partial perspective view of each embodiment for explaining the vertical reinforcement of the present invention.
4 is a partial perspective view of a vertical reinforcement according to another embodiment of the present invention.
5 is a cross-sectional view showing an example in which the opposing vertical reinforcements are overlapped in the column structure of the present invention.
6 is a cross-sectional view showing another embodiment of the lap joint structure of the vertical reinforcement of the present invention.
7 is a partial perspective view showing the interior of a steel pipe according to the prior art.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in order to obscure or obscure the technical idea of the present invention due to the detailed description of the known structure in describing the present invention, the description of the structure of the above known structure will be omitted.
FIG. 1 is a perspective view of a part of a CFT column structure (hereinafter referred to as a column structure) according to an embodiment of the present invention.
As shown in FIG. 1, the present invention is a column structure for constructing a CFT column having a cross section of a square steel box, wherein a pair of long
2 is a cross-sectional view of one specific embodiment of the column structure of the present invention.
As shown in FIG. 2, the column structure of the present invention forms a filling space for closed concrete by welding and joining four
The column structure of the present invention may be configured to have the same thickness with respect to the entire
For example, when the thickness of the short-side
In addition, the thick
Next, with respect to the
2 (a) and 2 (d) show an example in which the
3 and 4 show concrete embodiments of the construction of the
The
The
The connecting
When one reinforcing
The
The connecting
As shown in FIG. 4 (a), the
When the connecting reinforcing
5 (a) and 5 (b) are cross-sectional views of a vertical
In addition, since the
5 (b), when the ends of the
At this time, in order to further strengthen the above-described coupling structure with respect to each
In addition, each of the vertical reinforcing
6 shows another embodiment of the column structure according to the present invention.
The column structure of the present embodiment is configured such that the
The cross section of such a shape not only facilitates the assembling work such as omitting the improvement process in the welding work for assembling the column structure but also prevents the local buckling of the column structure by increasing the thickness width ratio and increases the section modulus, The present invention can provide an effect of improving the performance of the apparatus.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious that it will be possible to carry out various modifications thereof. For example, in the present specification, each outer plate constituting a rectangular steel box is divided into a long-side outer plate and a short-side outer plate. However, in the case where the cross-section of the column is designed to have a strong axis and a weak axis, The columnar structure of the present invention is not particularly limited to a rectangular shape, and the outer plate and the short-side plate may have the same width. In this case, The same applies. It is therefore intended that such modifications are within the scope of the invention as set forth in the claims.
100;
120; Short
210; Connecting reinforcing
212;
Claims (5)
A pair of long side shell plates 110 and a pair of other short side shell plates 120 are welded together to form a box-shaped closed space filled with concrete,
A pair of the outer plates 100 of the long side outer plate 110 and the short side outer plate 120 is thicker than a pair of the remaining outer plates 100,
The vertical reinforcement member 200, which is embedded in the concrete filled in the closed space, is attached to at least one pair of the outer plates 100 of the long-side outer plate 110 and the short-side outer plate 120,
The vertical reinforcement member 200 includes a vertical reinforcing bar 220 spaced from the outer panel 100 and a vertical reinforcing bar 220 having a continuous shape of the convex portion 211 and the concave portion 212, And a connecting reinforcing bar 210 connecting between the vertical reinforcing bars 200 and 100. The connecting reinforcing bars 210 are attached to only one side of the vertical reinforcing bars 220 on the cross- CFT column structure.
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KR1020150079242A KR101566992B1 (en) | 2015-06-04 | 2015-06-04 | Assembly typed cft column structure |
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KR1020150079242A KR101566992B1 (en) | 2015-06-04 | 2015-06-04 | Assembly typed cft column structure |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101734107B1 (en) * | 2016-12-13 | 2017-05-24 | 주식회사 아이에스중공업 | Cft column structure with the diaphragm and the manufacturing method thereof |
KR101804171B1 (en) * | 2016-07-22 | 2017-12-04 | 주식회사 씨엠파트너스건축사사무소 | Cft column structure with the vertical internal diaphragm |
KR20190002101A (en) * | 2017-06-29 | 2019-01-08 | 주식회사 포스코 | Hollow Structure, and Structure of Connecting Column and Beam |
KR102147047B1 (en) | 2020-03-16 | 2020-08-21 | 한우물중공업 주식회사 | Cft column structure |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101134460B1 (en) * | 2011-07-11 | 2012-04-13 | (주)엠씨에스에스티기술사사무소 | Steel beam with lattice bar and the construction method therefor |
-
2015
- 2015-06-04 KR KR1020150079242A patent/KR101566992B1/en active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101134460B1 (en) * | 2011-07-11 | 2012-04-13 | (주)엠씨에스에스티기술사사무소 | Steel beam with lattice bar and the construction method therefor |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101804171B1 (en) * | 2016-07-22 | 2017-12-04 | 주식회사 씨엠파트너스건축사사무소 | Cft column structure with the vertical internal diaphragm |
KR101734107B1 (en) * | 2016-12-13 | 2017-05-24 | 주식회사 아이에스중공업 | Cft column structure with the diaphragm and the manufacturing method thereof |
KR20190002101A (en) * | 2017-06-29 | 2019-01-08 | 주식회사 포스코 | Hollow Structure, and Structure of Connecting Column and Beam |
KR102131488B1 (en) * | 2017-06-29 | 2020-07-07 | 주식회사 포스코 | Hollow Structure, and Structure of Connecting Column and Beam |
KR102147047B1 (en) | 2020-03-16 | 2020-08-21 | 한우물중공업 주식회사 | Cft column structure |
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