KR20110097161A - Column system of concrete filled steel tube - Google Patents

Column system of concrete filled steel tube Download PDF

Info

Publication number
KR20110097161A
KR20110097161A KR1020100016846A KR20100016846A KR20110097161A KR 20110097161 A KR20110097161 A KR 20110097161A KR 1020100016846 A KR1020100016846 A KR 1020100016846A KR 20100016846 A KR20100016846 A KR 20100016846A KR 20110097161 A KR20110097161 A KR 20110097161A
Authority
KR
South Korea
Prior art keywords
column
concrete
pillar
filled
cross
Prior art date
Application number
KR1020100016846A
Other languages
Korean (ko)
Other versions
KR101174548B1 (en
Inventor
최성모
Original Assignee
서울시립대학교 산학협력단
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 서울시립대학교 산학협력단 filed Critical 서울시립대학교 산학협력단
Priority to KR1020100016846A priority Critical patent/KR101174548B1/en
Publication of KR20110097161A publication Critical patent/KR20110097161A/en
Application granted granted Critical
Publication of KR101174548B1 publication Critical patent/KR101174548B1/en

Links

Images

Classifications

    • 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
    • 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
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • 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

Landscapes

  • 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 pillar system composed of steel pipes filled with concrete, and particularly to form an efficient cross-sectional shape in consideration of the size of the load of each column pillar by forming a hollow that increases in diameter toward the upper layer except the lowermost layer. The present invention relates to a concrete-filled steel pipe column system having improved bondability with beams.
According to a preferred embodiment of the present invention, by increasing the size of the hollow to the upper pillars in each floor unit or several floor units to form a concrete-filled pillar in which the cross-sectional area of the filled concrete in the same cross-section, the beam on the top of each column Provided by a concrete-filled steel pipe pillar system by connecting the column-beam connector having a protruding surface for joining with each other, and connected to each other so that the pillars of each layer are erected on the same central axis line through the column-beam connector do.

Description

Column filled system of concrete filled steel tube

The present invention relates to a pillar system composed of steel pipes filled with concrete, and particularly to form an efficient cross-sectional shape in consideration of the size of the load of each column pillar by forming a hollow that increases in diameter toward the upper layer except the lowermost layer. The present invention relates to a concrete-filled steel pipe column system having improved bondability with beams.

The type of strength generated in the member is determined by the relationship between the direction of the main axis and the load direction. In general, structural members of a building generate both axial and flexural strengths simultaneously. A member subjected to axial strength is more efficient than a member subjected to flexural strength because the entire material can bear stress. On the other hand, the flexural stress varies in strength throughout the cross section, so that the material's efficiency is maximized only at the point where the cross-sectional stress is maximized, so most of the material supports much lower force than the allowable stress. Inefficient use of the material. Even in the cross-sectional shape, for example, in the case of a member subjected to bending stress, the material in the center portion of the cross section adjacent to the neutral axis is not sufficiently utilized because it is under stress, and the load is supported by the material in the top portion and the bottom portion in the cross section. Therefore, if you take out the material of this part and reinforce it, you will be able to increase the efficiency. As such, the structural member may be efficiently used to receive the axial strength and the shape of the effective cross section may be determined according to the type of the strength.

Concrete filled steel tubes (hereinafter referred to as 'CFTs') filled with concrete inside steel pipes have increased in demand due to the increase in demand for high-rise buildings due to the problems of population concentration and limitation of land use in large cities. There is a trend. Three types of steel pipes for CFT columns currently in use are generally adopted: 4-Seam Plate Square Steel Pipe, 2-Seam Plate Square Steel Pipe, and 1-Seam Cold Formed Square Steel Pipe. 4-Seam Plate square steel pipe is a method of welding four corners of steel plate when the thickness of steel plate used for pillar is thick. 2-Seam Plate square steel pipe is made of two c-shaped steel using press molding or bending molding. After that, the center part of the steel pipe which takes less stress concentration is welded. In addition, 1-Seam cold-formed square steel pipe is a steel pipe that is reshaped into a quadrangular shape after producing a round steel pipe. However, conventional steel pipes for filling concrete have been suspected of securing a composite effect with concrete, and often used stud bolts.

In order to improve the problems of the steel pipe for filling concrete as described above, in order to actively induce the composite effect of concrete and steel pipe, the welded part in the center of the column to improve the manufacturability and avoid the stress concentration of the corners by bending the four steel plates in the a-shape The cold-formed square steel tube was proposed to minimize the effect of residual stress due to the bending of the steel pipe and the heat of welding. Figure 5 shows a square steel pipe using four cold-formed steel sheet. As shown, the cold-formed square steel tube 10 is arranged at the corners such that the four rib L-shaped unit members 111, 112, 113, and 114 having the bent portions 111a formed at both ends thereof inwardly contact each other. It is configured to have a closed cross section by welding. The features of this cold-formed square steel pipe can be economically manufactured compared to the conventional closed steel frame members by bending thin steel sheets and using them as unit members. When used as an advantage to increase the binding force of the concrete.

However, when the cold-formed square steel pipe itself or concrete is used as a pillar, there is a problem in that it is difficult to join the steel beams due to the welding line in which four cold-formed steel sheets are joined. That is, in case of simple joining of steel beams to a column (pin joining, shear joining), the connection material (plate or T-shaped steel) is welded to the column at the factory in consideration of the ease of fabrication and installation of the joint and the high strength bolts of the beam web and the connecting material in the field A method of joining is generally used. In the case of a cold-formed square steel pipe 10, a welding line between unit members for forming a square steel pipe and a welding line for welding the plate 60 to the column 10 is shown. There is a problem that it is difficult to weld the plate 50 to the column 10 by overlapping each other.

On the other hand, in the column-beam connection, the bending moment generated at the beam end acts intensively on the column at the beam flange position. As such, when the bending moment of the beam end is large, as shown in FIG. 7, the pillar locally causes large deformation and fracture. Therefore, horizontal stiffeners should be installed to prevent this. However, in the case of cold-formed square steel pipe, there is a problem that it is difficult to install a horizontal stiffener. This is especially true when the cold-formed square steel pipe is filled with concrete and used as a charger pillar.

The present invention is to effectively construct the cross section of the column acting the male load with a very large compressive force by using a concrete-filled square steel pipe, and at the same time the welding line for welding the weld line and connecting material between the unit members for forming the square steel pipe to the column It is a problem to solve the problem that it becomes difficult to weld the connecting material to the column and overlapping each other and the problem that it is difficult to install the horizontal stiffener inside the square steel pipe.

According to a preferred embodiment of the present invention, by increasing the size of the hollow to the upper pillars in each floor unit or several floor units to form a concrete-filled pillar in which the cross-sectional area of the filled concrete in the same cross-section, the beam on the top of each column Provided by a concrete-filled steel pipe pillar system by connecting the column-beam connector having a protruding surface for joining with each other, and connected to each other so that the pillars of each layer are erected on the same central axis line through the column-beam connector do.

According to another suitable embodiment of the present invention, the pillar consists of a pillar body and a pillar-beam joint connected to the upper end thereof, and the pillar is bent inwardly at an angle at both ends of the steel plate bent at 90 degrees to extend the rib. The four lip L-shaped unit members which are placed at the corners and welded at the center to form a rectangular cross section, and have a first pillar composed of a pillar body filled with concrete therein, and an upper portion of the first pillar, located inside the rectangular cross section. And a second column composed of a pillar body filled with concrete in the space between the inner tube and the section partitioned by each unit member, the inner tube of the second pillar having a larger diameter from the first column to the upper layer. Has

According to another suitable embodiment of the present invention, the column-beam connection includes a center tube; Four vertical plates coupled along the longitudinal direction at 90 degree intervals from each other on the outer circumferential surface of the central tube; Four lip L-shaped steel sheets which are coupled to each other so as to expose a part of the vertical plate by retreating at the end of the vertical plate between neighboring vertical plates; And concrete filled in a space partitioned by a central tube, a vertical plate, and a lip L-shaped steel sheet.

According to another suitable embodiment of the present invention, two numbers are formed on the same line with each other, forming a hole communicating with the hollow of the center tube and closing the upper portion of the space partitioned by the center tube, the vertical plate and the lip L-shaped steel sheet. An upper plate having an area corresponding to a distance between ends of the direct plate; And a lower plate that closes the lower portion of the space partitioned by the center tube, the vertical plate, and the lip L-shaped steel plate, and has an area corresponding to the distance between two vertical plate ends positioned on the same line as each other.

  Concrete-filled steel pipe pillar system according to the present invention is a configuration that changes the cross-sectional area of the filling concrete of each layer as the diameter of the inner pipe is changed to effectively configure the cross section corresponding to the load of the pillars of each layer, the efficiency of the cross section is high. In addition, due to the high adhesive force due to the shape of the cross section itself, high composite effect with concrete can be expected without installing a separate shear connector. In addition, since the concrete is filled, no additional refractory reinforcement is required, and local buckling of the steel pipe can be effectively prevented.

In addition, the pillar according to the present invention is a pillar-beam joint of the through-diaphragm type of the beam is installed in advance, the column-beam connection in the field can be applied to the existing joint method as it is simple construction and reliability of the joint Is high.

Since the construction of the structure to which the concrete-filled steel pipe pillar system according to the present invention is applied is a factory production and on-site assembly method, it is possible to minimize the field work and to ensure uniform quality regardless of climatic conditions and site construction conditions. It is easy.

The following drawings, which are attached in the present specification, illustrate exemplary embodiments of the present invention, and together with the detailed description of the present invention, serve to further understand the technical spirit of the present invention. It should not be construed as limited.
Figure 1 shows an example of the case where the concrete-filled steel pipe pillar system according to the present invention is applied to a four-story building, the left side is an elevation view and the right side is a cross-sectional view of the column.
FIG. 2 is an enlarged cross-sectional view of the pillar of FIG. 1.
Figure 3 is an exploded perspective view showing a column-beam junction that is connected to the top of each column pillar and the beam is bonded.
Figure 4 is a perspective view showing a state of joining the column and the beam in the concrete-filled steel pipe pillar system according to the present invention.
5 is a perspective view showing a conventional 4-seam welded cold-formed square steel pipe.
6 is a perspective view showing a state in which a plate is installed to join a steel beam to a conventional 4-seam welded cold-formed square steel pipe.
7 is a view showing an example in which a large deformation is generated locally in the column due to the bending moment of the beam end.

In the following the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the embodiments presented are exemplary for a clear understanding of the present invention is not limited thereto.

Figure 1 shows an example of the case of the concrete-filled steel pipe pillar system according to the present invention applied to a building of four stories, the elevation on the left side and the cross-sectional view of the column on the right side, respectively, Figure 2 3 is an enlarged cross-sectional view of the pillar shown, Figure 3 is an exploded perspective view showing a column-beam junction that is connected to the top of each column pillar and the beam is bonded.

Referring to Figure 1, the pillar in the concrete-filled steel pipe pillar system according to the present invention has a configuration in which the cross-sectional area of the filling concrete is changed within the same cross-section and the column-beam connector for joining the beam at the top. In FIG. 1, the pillars are hollow, each of which increases in diameter, except for the lowermost layer, so that the cross-sectional area of the concrete filled in the pillars is changed every floor, but this is only an example. Of course, it can be configured to change the cross-sectional area of the concrete. Each pillar C1, C2, C3, C4 is a pillar body 11 (for joining the beam with the pillar bodies 11, 21, 31, 41 where the cross-sectional area of the filled concrete is largely changed. 21) (31) (41) consists of column-beam splices (12) (22) (32) (42) connected to the top. The pillar body and the column-beam connection can be manufactured separately in the factory and connected by welding, and can be constructed in a factory production-site assembly method similar to the PC (precast concrete) method of erecting a column in the field.

Referring to FIG. 2, the pillar bodies 11, 21, 31, and 41 have four lip L-shaped unit members 111, 112, 113, and 114 arranged at the corners and welded at the center to form a rectangular cross section, and the concrete (115). ), The lowermost column, that is, the remaining columns (21,31,41), except for the first floor column (11), the inner tube 116 is placed on the central axis and the inner tube 116 and each unit member (111, 112, 113, 114) The concrete 115 is filled in the space between the partitioned sections. Hereinafter, a pillar that is filled with concrete without using an inner tube 116 and is used as a lowermost layer, that is, a pillar of one floor, is called a first pillar, and has an inner tube 116 so that the cross-sectional area of the filled concrete 115 is changed and two or more pillars are used. The pillar used as the second pillar is called.

Each unit member (111,112,113,114) is made by cold rolling a thin steel sheet in the form of a-shape to increase the manufacturability and to minimize the effects of residual stress due to the edge bending and welding heat by placing the weld in the center avoiding the stress concentration position of the corner . Each unit member (111, 112, 113, 114) having a cross-sectional shape of the a-shape by bending the steel plate 90 degrees has a lip (111a) extended by bending inward at a predetermined angle at both ends. Lip 111a may be bent in the range of 20 to 90 degrees, preferably in the range of 30 to 60 degrees. Therefore, even if each unit member (111, 112, 113, 114) is made of a thin steel sheet, the pillar body can exhibit a great buckling strength, and due to the large adhesion force due to its cross-sectional shape, it can actively express the composite effect with the concrete (115). Concrete 115 ensures the fire resistance of the steel column composed of the unit members (111, 112, 113, 114) and prevent local buckling.

The inner tube 116 installed inside the pillar bodies 21, 31, and 41 of the second pillar is configured to have a larger diameter toward the upper layer to reduce the cross-sectional area of the concrete 115, thereby efficiently responding to the magnitude of the load. Allows you to construct column cross sections. The length of the inner tube 116 may have the same length of the pillar body, and the length of the inner tube 116 is shorter than that of the pillar body for a rigid connection between the upper and lower pillars, and installed to be retracted to a constant length from the bottom of each unit member. After assembling the pillar in the field can be configured to inject the non-shrink mortar to the bottom of the pillar body. The cross-sectional shape is not limited to the circle shown and may have any cross-sectional shape known in the art. The material of the inner tube 116 is not particularly limited and may be a plastic tube made of any plastic material known in the art, a fiber reinforced plastic tube, a steel tube, or a lightweight aluminum tube having high specific strength and non-rigidity.

Referring to FIG. 3, the column-beam junctions 12, 22, 32, and 42 are along the longitudinal direction with a center tube 121 and a 90 degree interval from each other on the outer circumferential surface of the center tube 121. Four ribs that are combined to expose a part of the vertical plate 122 by retreating at the end of the vertical plate 122 between the four vertical plates 122 and neighboring vertical plates 122 coupled to form a closed cross section. Holes communicating with the hollow of the concrete 124 and the center tube 121 filled in the space partitioned by the L-shaped steel sheet 123, the center tube 121 and the vertical plate 122 and the lip L-shaped steel sheet 123 125a is formed and closes the upper part of the space partitioned by the central tube 121, the vertical plate 122, and the lip L-shaped steel plate 123, and is disposed between the ends of the two vertical plates 122 positioned on the same line. The upper plate 125 and the center tube 121, the vertical plate 122, and the lip L-shaped steel plate 123 having an area corresponding to the distance to close the lower part of the space and two located on the same line The lower plate 126 has an area corresponding to the distance between the ends of the vertical plate 122.

The center tube 121 is to assemble the pillar and then fill the concrete therein to make the connection between the upper and lower pillars more solid. If the hollow tube can be filled with concrete, the cross-sectional shape is not particularly limited and the length is to be joined. It can be determined by the dance of the beam. The central tube 121 may have the same cross-sectional shape and diameter as that of the inner tube 116 installed in the upper layer pillar connected to the upper surface of the upper plate 125 or may have the same cross-sectional shape and diameter in all layers. The center tube 121 may be made of a plastic tube made of any plastic material known in the art, such as an inner tube 116, a fiber reinforced plastic tube, a steel tube, or a lightweight aluminum tube having high specific strength and non-rigidity. .

Vertical plate 122 is composed of a steel plate having a constant thickness over the entire length and has the same length as the length of the central tube (121). Four vertical plates 122 are welded at 90 degree intervals from each other along the outer circumferential surface of the center tube 121 to have a cross shape in a cross shape.

The lip L-shaped steel sheet 123 is manufactured by bending a thin steel sheet by cold rolling to have the same cross-sectional shape as the lip L-type unit members 111, 112, 113, and 114 of the pillar body described above, and is opened between adjacent vertical plates 122 that are perpendicular to each other. To close the closed space. Therefore, the closed cross section composed of four lip L-shaped steel sheets 123 may have the same size as the closed cross section formed by the lip L unit members 111, 112, 113, and 114 of the pillar body. The lip L-shaped steel sheet 123 is coupled by retreating to a predetermined length at the end of the vertical plate 122 so that a part of each vertical plate 122 is exposed, and the exposed vertical plate 122 has a protruding surface to which the beam is joined. Will be provided.

Each space partitioned by the central tube 121, four vertical plates 122, and four lip L-shaped steel sheets 123 is filled with concrete 124 and adheres due to its own cross-sectional shape of the members partitioning each space. This is a big synthesizing effect.

The upper plate 125 and the lower plate 126 are respectively coupled to close the upper and lower portions of the space partitioned by the central tube 121, the vertical plate 122, and the lip L-shaped steel sheet 123. The upper plate 125 and the lower plate 126 are each formed of a steel plate having an area corresponding to the distance between the ends of two vertical plates 122 positioned on the same line as each other, and the upper plate 125 has a center tube 121. The hole 125a may be formed in communication with the hollow. The upper plate 125 and the lower plate 126 protruding outward from the cross section formed by the lip L-shaped steel sheet 123 provide a protruding surface to which the beam is joined.

Figure 4 is a perspective view showing a state of joining the column and the beam in the concrete-filled steel pipe pillar system according to the present invention.

The column-beam joint according to the present invention provides a column-beam connection structure of a through-diaphragm type, and the upper plate 125 and the lower plate 126 and the vertical plate protruding outward from the cross section formed by the lip L-shaped steel sheet 123. Reference numeral 122 constitutes an approximately H-shaped cross section. Therefore, since the conventional joining method can be applied, there is a high reliability of the structural performance, such as the rigidity, strength of the joint. In the figure, the upper flange 51 of the beam B is welded to the upper plate 125 of the column-beam junction, the lower flange 52 to the lower plate 126, and the web 53 to the vertical plate 122, respectively. Although shown as being of course, it can be bonded to each other through known bolted joints. On the other hand, the upper plate 125 and the lower plate 126 may be removed at the time of assembly of the column, in which case the joining with the beam may be in the form of a simple joint connecting only the web of the beam to the vertical plate of the column-beam joint. have.

As described above, the concrete-filled steel pipe pillar system according to the present invention is configured to change the cross-sectional area of the filled concrete of each layer as the diameter of the inner tube 116 changes, so that the cross-section effectively responds to the load of the pillar of each layer. By configuring, the efficiency of the cross section is high. In addition, due to the high adhesive force due to the shape of the cross section itself, high composite effect with concrete can be expected without installing a separate shear connector. In addition, since the concrete is filled, no additional refractory reinforcement is required, and local buckling of the steel pipe can be effectively prevented.

In the concrete-filled steel pipe pillar system according to the present invention, the pillars of each layer are welded and poured concrete of the lip L-shaped unit members 111, 112, 113, and 114 constituting the pillar body, and the concrete pour and concrete pour. As it is performed at the factory, high and uniform quality can be obtained. In addition, the field work can be minimized because it is a factory fabrication and field assembly method of constructing the structure by importing each manufactured pillar member to the site and welding the column and beam of the upper layer using the column-beam connection. Regardless of the construction conditions, it is possible to ensure uniform quality, which facilitates quality control.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention . The invention is not limited by these variations and modifications, but is only limited by the scope of the appended claims.

11, 21, 31, 41: pillar body
111, 1112, 113, 114: Lip L type steel sheet
111a: Lip
115: filling concrete
116: inner tube
12, 22, 32, 42: column-beam connection
121: center tube
122: vertical plate
123: lip L type steel sheet
124: filling concrete
125: top plate
126: bottom plate

Claims (4)

Each floor or several floors increases the size of the hollow to the upper pillars to form a concrete-filled pillar whose cross-sectional area of the filling concrete changes in the same section, and has a protruding surface for joining beams at the top of each pillar. Concrete-filled steel pipe column system, characterized in that by connecting the column-beam connection, through the column-beam connection so that the pillars of each layer are erected on the same central axis line. The method according to claim 1,
The column consists of a column body and column-beam joints connected to the top,
The pillar,
Pillar body with four lip L-shaped unit members having ribs extending from each end of the steel plate bent at 90 degrees and extending in a predetermined angle at the corners and welded at the center to form a rectangular cross section and filled with concrete The first pillar consisting of,
Located on the upper floor of the first column and includes a second column consisting of a column body filled with concrete in the space between the inner tube and the cross section partitioned by the unit member inside the inner tube in the rectangular cross section,
The inner tube of the second column is concrete filled steel pipe pillar system, characterized in that having a larger diameter toward the upper layer from the first column. The method according to claim 1,
Pillar beam joint is
Central tube;
Four vertical plates coupled along the longitudinal direction at 90 degree intervals from each other on the outer circumferential surface of the central tube;
Four lip L-shaped steel sheets which are coupled to each other so as to expose a part of the vertical plate by retreating at the end of the vertical plate between neighboring vertical plates; And
A concrete-filled steel pipe column system comprising concrete filled in a space partitioned by a central tube, a vertical plate and a lip L-shaped steel sheet. The method according to claim 3,
A hole communicating with the hollow of the center tube is formed, and closes the upper part of the space partitioned by the center tube, the vertical plate, and the lip L-shaped steel plate, and has an area corresponding to the distance between the ends of the two vertical plates located on the same line. Top plate; And
The lower part of the space partitioned by the center tube, the vertical plate and the lip L-type steel sheet and further comprising a lower plate having an area corresponding to the distance between the ends of the two vertical plates located on the same line with each other Steel pipe column system.
KR1020100016846A 2010-02-24 2010-02-24 Column system of concrete filled steel tube KR101174548B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100016846A KR101174548B1 (en) 2010-02-24 2010-02-24 Column system of concrete filled steel tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100016846A KR101174548B1 (en) 2010-02-24 2010-02-24 Column system of concrete filled steel tube

Publications (2)

Publication Number Publication Date
KR20110097161A true KR20110097161A (en) 2011-08-31
KR101174548B1 KR101174548B1 (en) 2012-08-16

Family

ID=44932213

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100016846A KR101174548B1 (en) 2010-02-24 2010-02-24 Column system of concrete filled steel tube

Country Status (1)

Country Link
KR (1) KR101174548B1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101536482B1 (en) * 2013-12-26 2015-07-15 주식회사 포스코 Independence supporting pillar structure
CN108222373A (en) * 2017-12-05 2018-06-29 姚攀峰 A kind of reinforced cold-bent pipe concrete column and structural system and construction method
CN108222371A (en) * 2018-01-26 2018-06-29 华侨大学 A kind of assembly concrete-filled steel tube coupled column and joining method
CN110258923A (en) * 2019-07-02 2019-09-20 同济大学 Waveform steel pipe concrete profiled pile based on single trough form
CN111206717A (en) * 2020-03-13 2020-05-29 上海欧本钢结构有限公司 Transverse partition plate of column and column with same
CN114737671A (en) * 2022-04-12 2022-07-12 中国航空规划设计研究总院有限公司 Connecting structure and method for steel pipe concrete column and steel node and transition connecting member
CN114961391A (en) * 2022-06-27 2022-08-30 重庆大学 Assembled node of steel pipe concrete special-shaped column and H-shaped steel beam

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105714939B (en) * 2016-04-13 2017-03-29 长安大学 Concrete filled steel tube pole steel beam external partition formula node structure and its construction method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100684931B1 (en) 2006-02-28 2007-02-22 염경수 Closed type inflected steel member and connection structure thereof
KR100770023B1 (en) 2006-05-24 2007-10-25 재단법인서울대학교산학협력재단 Connecting structure between cft column and rc slab using shear head

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101536482B1 (en) * 2013-12-26 2015-07-15 주식회사 포스코 Independence supporting pillar structure
CN108222373A (en) * 2017-12-05 2018-06-29 姚攀峰 A kind of reinforced cold-bent pipe concrete column and structural system and construction method
CN108222373B (en) * 2017-12-05 2024-01-30 姚攀峰 Reinforced cold-formed steel tube concrete column, structural system and construction method
CN108222371A (en) * 2018-01-26 2018-06-29 华侨大学 A kind of assembly concrete-filled steel tube coupled column and joining method
CN108222371B (en) * 2018-01-26 2023-11-21 华侨大学 Assembled steel pipe concrete composite column and splicing method
CN110258923A (en) * 2019-07-02 2019-09-20 同济大学 Waveform steel pipe concrete profiled pile based on single trough form
CN111206717A (en) * 2020-03-13 2020-05-29 上海欧本钢结构有限公司 Transverse partition plate of column and column with same
CN114737671A (en) * 2022-04-12 2022-07-12 中国航空规划设计研究总院有限公司 Connecting structure and method for steel pipe concrete column and steel node and transition connecting member
CN114737671B (en) * 2022-04-12 2023-10-03 中国航空规划设计研究总院有限公司 Connection structure and method for steel pipe concrete column and steel node and transitional connection member
CN114961391A (en) * 2022-06-27 2022-08-30 重庆大学 Assembled node of steel pipe concrete special-shaped column and H-shaped steel beam

Also Published As

Publication number Publication date
KR101174548B1 (en) 2012-08-16

Similar Documents

Publication Publication Date Title
KR101174548B1 (en) Column system of concrete filled steel tube
KR101076581B1 (en) Joint structure for hollow core concrete filled tube column and H shaped beam and construction method therefor
KR101335955B1 (en) a concrete filled circular steel tube with the three-dimensional diaphram and the joint structure
WO2017177470A1 (en) Assembly type steel pipe casing reinforced concrete combined joint and mounting method
CN102296705B (en) Composite steel pipe concrete column and steel beam connecting node
KR102079008B1 (en) E-z connecting structure for beam and column wherein the end-moment and bending resistibility are reinforced
WO2019100798A1 (en) Fabricated building structure having combined steel structure and concrete structure, and construction method
KR20190063645A (en) Connecting structure of Composite column and H-beam and manufacturing method thereof
KR100648376B1 (en) Joint of steel concrete column and horizontal member, construction method thereof
CN106121043A (en) A kind of two-tube coupled column with energy-dissipating and shock-absorbing effect and construction method
CN113585456B (en) Precast concrete beam column connection node structure and construction method
CN112796411B (en) Box board assembled steel structure underground beam type conversion structure
CN114753524A (en) Built-in densely-distributed column type double-layer corrugated steel plate composite shear wall
RU2416007C2 (en) Stiffening structure for bearing ceiling slabs in buildings
CN216713336U (en) Double-limb spliced beam and steel pipe column and double-limb spliced beam assembly type beam column joint
KR101017800B1 (en) Reinforcement structure for connection of cold formed plate column and steel beam
KR20160137705A (en) Joint structure of CFT column and composite girder
KR101050166B1 (en) Slab module and knock-down type modular construction of use it
KR100578641B1 (en) Steel-Concrete Hybrid Column, Hybrid Structure System Using the Same, and Construction Method Thereof
CN215926271U (en) Precast concrete beam column connected node structure
KR200358912Y1 (en) Connection structure for girder & column
KR102461223B1 (en) Prefabricated module for composite hollow wall and composite hollow wall using the same
KR101171061B1 (en) Modular unit with connector and floor heating plate
KR20190126530A (en) Pre-fabricated column with angle-type reinforcing bar
CN114108808A (en) PVC-FRP (polyvinyl chloride-fiber reinforced plastic) pipe concrete column and concrete composite beam combined structure with adjustable connecting nodes and installation method thereof

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20150804

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20160526

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20170721

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20180801

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20190731

Year of fee payment: 8