KR101619067B1 - Fabricated Column Structure with Jointing Structure of the Beam - Google Patents

Abstract

The present invention relates to a column structure for connecting a column and a steel beam. The present invention provides a column structure capable of maximizing efficiency of a cross section of a steel material, convenience of manufacture, constructability in a site, and structural stability on the connection of a column and a beam. The column structure for connecting a column and a steel beam includes: a vertical fixing steel located at each corner of a square cross section; a template maintaining the shape of the column with the square cross section and connecting a gap between the vertical fixing steels; and a vertical steel bar embedded in column concrete. The vertical steel bar is attached and fixed to the outer surface of the vertical fixing steel. An open surface on which the steel beam can be horizontally installed is formed between two vertical fixing steels.

Description

Technical Field [0001] The present invention relates to an assembled column structure having a universal joint structure of a beam structure,

The present invention relates to a column structure for joining columns and beams, and more particularly, to a column structure having an RC structure or a SRC structure, and capable of joining a variety of beam structures such as RC beams and composite structures as well as steel beams. To the column structure.

Generally, in the SRC structure, pillars and beams are assembled by H-shaped beams, and the concrete is placed on the beam and slab of each layer after the beam deck plate or the form is mounted, and a work site is secured on the lower part. The concrete structure of each layer is completed by placing reinforcing steel reinforcement and concrete around the column of the H-shaped steel.

However, in the above-mentioned SRC column structure, the column structure composed of the H-shaped steel and the reinforcing bars around the H-shaped column is completed only by the laying work in the field, so that the field work becomes troublesome and the construction period becomes longer. In addition, since the steel material is located at the center of the column, the cross-sectional efficiency is lower than the amount of steel used, which is uneconomical.

This problem is solved by a "prefabricated post-assembled column structure" filed by the applicant of the present application on Dec. 10, 2014, application number 10-2014-0177462 (unpublished).

As shown in Fig. 1, the column structure of the above-mentioned application No. 10-2014-0177462 includes two side faces 111 which are respectively located at four corners of the column and are perpendicular to each other, (110), which is composed of an end surface (112) curved inwardly and inwardly; And a plurality of longitudinally extending end portions of the plurality of templates (110) are joined to an end surface (112) of the edge vertical steel (110) and an inner surface of the one side surface (111) (120); And a vertical reinforcing bar 130 installed outside the template 120.

The column structure having such a structure can be formed precisely at the factory because the vertical structure can be attached to the outer surface of the column structure while maintaining the shape of the square cross section using the template. The factory construction of the column structure simplifies the field work and shortens the process, as well as maximizes the section efficiency of the steel by placing the steel material outside the column section, thereby ensuring sufficient workability, economy and stability.

However, since the vertical columnar structure is located at the central portion of the column, it is necessary to cut the vertical columnar portion of the vertical column to weld the steel column to the steel column, There are limitations in phase or structural design.

This problem is also encountered for RC columns. FIG. 2 is an embodiment of the present invention, which is a name of 'Reinforced Concrete Column' registered on Sep. 11, 2013, Registered Patent Registration No. 10-1307471. The steel column bracket is connected to an RC column in which a vertical reinforcing bar and a reinforcing bar are laid, As shown in the above drawings, since the vertical reinforcing bar is provided so as to pass through the upper and lower flanges of the steel bracket, the column structure of the application No. 10-2014-0177462 has the structure The problem is as it is.

KR 10-1307471 B1

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to enable joining of various beam structures such as RC beams and composite structures as well as steel beams to columns of SRC structure or RC structure, And it is an object of the present invention to provide a column structure which can be universally applied and can maximize the structural stability against the joining of columns and beams as well as the ease of construction in the field, simplicity of fabrication, and efficiency of steel section.

According to a most preferred embodiment of the present invention for solving the above-mentioned problems, there is provided a method of manufacturing a honeycomb structured body, comprising a vertically fixing steel pipe located at each corner of a rectangular cross section, a template connecting the angles of the vertical steel pipe, Wherein the vertical reinforcement is attached and fixed to the outer surface of the vertical fixing steel so that an opening is formed between the two vertical fixing steel so that a steel beam can be horizontally installed therebetween. There is provided an assembly column structure having a universal joint structure of the structure.

According to another embodiment of the present invention, the template is formed of a plate-like member having a shape of four protrusions formed in a + shape, and the length of each of the protrusions is not less than the width of the steel beam. A column structure is provided.

According to another embodiment of the present invention, the template is provided on the vertical fixing steel such that a pair of the template is vertically opposed to each other with an interval equal to the dancing of the steel bars.

According to another embodiment of the present invention, the template is provided such that each projection surface protrudes from the outer surface of the vertical fixing steel at least by the diameter of the vertical steel bars.

According to another embodiment of the present invention, a diaphragm is attached to a vertical fixing steel at a position where a steel beam is joined to each other between the respective sides of the template, and the diaphragm has a + And the joint surface has the same width as the protruding surface of the template. The assembly column structure has a universal joint structure of the beam structure.

According to another embodiment of the present invention, there is provided a column structure for a through steel frame, wherein each of the vertical fixing steels is further provided with a separation steel having a height equal to the thickness of the concrete covering.

According to another embodiment of the present invention, a plurality of spaced apart steels are installed at regular intervals, and the spaced steel located in the section where the steel beam is installed is formed of a channel, and the opening of the channel is positioned on the outer surface of the vertical fixed steel And a pre-assembly die is installed on the outer surface of the spaced apart steel column so as to be separated from the upper and lower steel bars after the column concrete is placed between the adjacent steel bars. do. At this time, a membrane plate may be further installed in the section where the steel bar is installed, and a holder for a deck plate attached to the separated steel may be further installed on the upper part of the pre-assembly formwork.

The column structure according to the present invention has a column structure of SRC or RC structure, and can have a steel joint structure using a diaphragm as well as a through-hole of a steel beam, so that versatility that can be widely applied without depending on the structure type of the beam And it is possible to secure the structural stability for the steel joint of the column and the beam perfectly.

In addition, the column structure according to the present invention maximizes the sectional efficiency compared to the amount of steel material by reducing the amount of expensive steel material and arranging the whole structure of the column structure in the factory by arranging the steel material on the outer side of the column, So that the effect of promoting economic efficiency can be demonstrated.

Also, since the columnar structures according to the present invention are integrated or bundled by vertical fixing steel, the vertical reinforcing bars exhibit sufficient buckling strength even before the concrete for column is poured and cured, In addition, the end face of the vertical fixed steel plays a role as a reinforcing rib with respect to both vertical sides, prevents the local buckling due to the vertical load, and anchors the concrete, thereby preventing the coated concrete from falling off, And to build pillars.

In addition, the column structure according to the present invention facilitates the joining operation in the field and does not unnecessarily increase the thickness of the cover. Especially, the column structure has a stable support against the upper load of the slab, Structure, it is possible to independently perform each casting operation of the column concrete and the slab concrete without over-designing the cross-section of the column.

1 and 2 are a perspective view and a cross-sectional view showing a joining structure with a column structure to a steel beam according to the prior art.
3 is a perspective view and a plan view of an example in which a vertical fixing steel is integrally formed as a column structure according to an embodiment of the present invention.
4 is a perspective view of an example in which a columnar structure is provided with a bracing according to another embodiment of the present invention.
5 is a perspective view of an example in which vertical columns are divided into a plurality of vertical columns as column structures according to another embodiment of the present invention.
6 is a perspective view showing specific embodiments of a template applied to the present invention.
7 is a plan view of an embodiment showing a coupling structure of a vertical fixing steel and a template in the present invention.
8 is a plan view conceptually showing the relationship between the width of a steel beam penetrating through the column structure of the present invention and the width of the projection surface of the template.
9 is a perspective view of another embodiment showing a coupling structure of a vertical fixing steel and a template in the present invention.
10 is a cross-sectional view of a column structure according to the present invention with a diaphragm.
11 is a perspective view showing a state in which spaced steel is installed on the column structure according to the present invention.
12 is a perspective view showing an example in which a pre-assembly die is installed on a column structure according to the present invention.
13 is a perspective view showing an example in which a plate and a cradle are further installed on the column structure of the present invention.

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.

3 to 5 are a perspective view and a plan view of a column structure according to each embodiment of the present invention.

As shown in the drawings, the present invention is characterized in that a vertical fixing steel (10) positioned at each corner in a square cross section of a column structure, a template (20) for maintaining the columnar shape of the square cross section, And a vertical reinforcing bar 30 embedded in the concrete C for the column.

The vertical fixing steel 10 bundles a plurality of vertical reinforcing bars 30 bundled together to have an integral structure, thereby facilitating the manufacture of the column structure and having the self-supporting structure of the column structure together with the template 20 described later . For this purpose, the vertical reinforcing bars 30 are configured to be fixedly attached to the outer surface of the vertical fixing steel 10.

The attachment structure of the vertical steel bars 30 and the vertical steel bars 10 on the other hand has another effect of simplifying the joining of the vertical bars 30. That is, the vertical fixed steel 10 functions as a reinforcing member by providing the welded surfaces for welding the two vertical steel bars 30 to be joined.

In addition, the vertical reinforcement 30 in the present invention is installed only on the vertical fixed steel 10, which forms an opening K that is not interfered by the vertical steel bars between the adjacent two vertical fixed steel rods 10 And the diaphragm 70 can be easily installed so that stress can be dispersed through the joining with the steel beam 60. In addition, It is possible to easily connect the installation of the composite beams and the PC beams using the arrangement of the connecting reinforcing bars passing through the through holes. However, here, the steel beam 60 is provided as an example.

The vertical fixing steel 10 may have various cross sections but most preferably have two mutually orthogonal sides 10a and end faces 10b bent inward at the widthwise ends of the respective side faces 10a ).

The end face 10b may have a shape perpendicular to the side face 10a or may have a claw shape bent further toward the side face 10a. The end face 10b having such a shape functions as a reinforcing rib to both sides 10a to prevent local buckling and also has a function of anchoring after the concrete C for a column is put in place, To prevent it from falling out.

In addition, the end face 10b is provided with a welding face for the bracing when the bracing is installed between the template 20 and the diaphragm described later, as well as between the vertical fixing steel 10 as shown in Fig. Thereby greatly facilitating the installation thereof.

 The vertical fixed steel 10 having the above-mentioned cross-sectional shape is manufactured by roll-forming a thin steel plate. Since it can be designed in various sizes compared to the rolled steel such as angles, it is general-purpose and economically inexpensive. . ≪ / RTI >

As shown in FIG. 3, the vertical fixed steel 10 may be a single member integrated with the length of the column structure. In this case, the vertical fixed steel 10 serves as a structural member, Let us build the pillars of the structure.

Alternatively, as shown in FIG. 5, the vertical fixing steel 10 may be divided into a plurality of columns. In this case, the role of the column as a structural member can not be expected. However, it is possible to make a welded joint as shown in FIG. 3 and a reinforced concrete joint using the coupler 31, So that it is possible to construct a high-quality column by exhibiting sufficient strength even before the concrete for the column is cured.

The template 20 that connects the angles of the vertical fixing steel 10 and maintains the shape of the rectangular cross section can be formed in various shapes within the scope of the technical idea pursued by the present invention, 0.0 > 20 < / RTI >

The template 20 of the embodiment shown in FIG. 6 (a) is composed of a plate-like member and is formed in a + shape so that four projecting surfaces 21 are protruded and formed therein. Inside the template 20, Holes 22 are provided.

The end face 10b of the vertical fixed steel 10 located at each corner of the end face of the column structure is welded to both sides of the end of the protruded face 21 so that the vertical fixed steel 10 is integrally formed do.

3, the outer surface of each side surface 10a may be aligned with the end surface of the projection surface 21 of the template 20. However, as shown in FIG. 7, The protruding surface 21 of the template 20 protrudes from the outer surface of the vertical fixing steel 10 so that the protruding surface 21 protrudes from the outer surface of the vertical fixing steel 10, The diameter of the vertical steel bars 30 attached to the vertical steel bars 10 is preferably equal to the diameter of the vertical steel bars 30 attached to the vertical steel bars 10. This configuration does not unnecessarily increase the concrete covering thickness t due to the vertical reinforcing bars 30.

Each protruding surface 21 formed by the + shape of the template 20 is located at the center of the column surface. The protruding surface 21 is formed so as to penetrate the columnar structure 60 in the direction of the protruding surface 21, The width d 1 of the surface 21 is made to be equal to or greater than the width d 2 of the steel beam 60. 8 is a plan view conceptually showing the relationship between the width d2 of the steel beam 60 passing through the columnar structure and the width d1 of the projection surface 21 of the template.

자 형상이 되도록 구성시킬 수도 있다. 이러한 실시예에서의 템플레이트(20)는 각 모서리부위에 고정단(25)이 형성되고, 상기의 고정단(25)은 수직고정강(10)의 내면에 접합되는 구조를 가지게 된다.In another embodiment of the template 20 shown in Fig. 6 (b), four length members, for example, four angles,

Shape so as to be shaped like a letter. The template 20 in this embodiment has a fixed end 25 formed at each corner and the fixed end 25 has a structure that is joined to the inner surface of the vertical fixed steel 10. [

In this case, the fixed end 25 may have a two-point support shape, which is connected to the side face 10a and the end face 10b of the vertical fixed steel 10, So that a more rigid bonding structure is formed between the fixed steels 10.

The template 20 is installed at an appropriate interval with respect to the entire length of the column structure made of one unit so that the shape of the column structure is not deformed during transportation and field installation.

The column structure has a columnar self-standing structure by the template 20, but may be further reinforced by a bracing B as shown in Fig. 4, if necessary. The bracing B functions not only as a self-supporting reinforcement of the column structure but also as a stiffener for shear reinforcement.

However, the installation of the bracing B does not limit the installation of the reinforcing means such as a stitch or a tie bar. That is, each of the reinforcing means may be installed independently or alternatively in parallel.

Similarly, a wire mesh (not shown) may be provided between each of the vertical fixing steel 10 and the vertical fixing steel 10 to prevent the concrete from cracking.

The template 20 plays a main role in maintaining the shape of the vertical fixing steel 10 so as to be connected to each other so as to have an integral structure as a column structure. However, the load transmitted by the steel beam 60 passing through the column structure, As a stress transmission member.

For example, in the case where the joining structure of the column and the beam is made to penetrate the column by the steel beam 60, the template 20 is not necessarily installed on the vertical steel 10 of the column structure where the steel beam 60 is located , And by providing the template 20 at this site, it is possible to perform a kind of structural material function.

9 shows an embodiment in which the template 20 is used as a stress transmission member as a structural member. The pair of templates 20 are disposed so as to be vertically opposed to each other with an interval equal to the dancing of the steel beam 60, And fixed to the fixed steel (10).

Therefore, the steel beam 60 passing through the column structure has a structure in which the upper flange 60a and the lower flange 60b are in contact with the respective upper and lower surfaces of the template 20, respectively.

The interaction structure between the steel frame 60 and the template 20 forms a path for transmitting stress between the steel frame 60 and the template 20. The stress transmission path is such that various stresses generated in the steel frame 60 are dispersed and transmitted to the column, It has a clear and efficient structure of joining columns and beams.

In addition, when the steel frame 60 is not passed through the column, the diaphragm 70 is provided on the steel frame connection portion of the column structure, thereby facilitating the installation of the steel frame 60 while omitting the installation of the template 20 .

10 is a sectional view for explaining an example in which the diaphragm 70 is provided in the column structure.

The diaphragm 70 is attached to the vertical fixed steel 10 at the position where the steel beam 60 is joined between the respective sides of the template 20, Shaped member in which four bonding surfaces 71 are formed. Needless to say, the bonding surface 71 must have the same width as the protruding surface 21 of the template 20.

As described above, the diaphragm 70 provided inside the vertical reinforcing bars 30 in the vertical edge steel 10 is formed in the same manner as the steel beam 60 of the column-to-beam connection structure penetrating the column building body , A section defect is not required for the installation of the vertical reinforcement 30 And thus the joint structure of the column and the beam with a clear stress transmission is obtained.

The column structure of the present invention may further be provided with a spacing steel 11 for facilitating the installation of the formwork 80 while maintaining the thickness of the covering of the vertical steel bars 30. Fig. 11 is a perspective view showing a column structure provided with the above-described spacing steel 11. Fig.

The spacing steel 11 is attached to the outer surface of the vertical fixing steel 10 so as to have the same height as the thickness of the concrete covering and has fastening means such as a bolt hole for fastening with the mold 80 .

Such a spaced steel 11 is only required to be able to maintain the coating thickness t and to fix it to the mold 80, and the shape thereof is not particularly limited. However, when the function of the concrete hole or the air hole is also used as described later, it is necessary to limit the shape of the cross section to an open space that forms a passage.

12 shows an example in which the mold 80 is attached to the outer surface of the spaced steel 11 so that the thickness of the coating of the concrete is maintained.

The mold 80 may be installed in the field after the column structure is installed, but may be assembled to the column structure so as to be positioned between the steel bars 60 adjacent to the upper and lower sides of the factory, It is possible to place the column concrete C immediately after the column structure is installed and to omit the step of installing the formwork 80 in the field.

That is, the pre-assembling die 80 is manufactured and installed together with the column structure in the factory. After the placing of the column concrete C on the site is completed, the pre-assembly die 80 is separated from the separated steel 11 and reused .

For reference, the term 'factory' is used as a comprehensive concept that means all the places except the specific point where the member is installed. For example, the yard in the vicinity of the site, Factory '.

In the meantime, the column structure of the present invention can be used in the field by making the length corresponding to 3 to 4 layers as one unit length, and in this case, as in the case of the column structure of the H-shaped steel described above, The slab concrete of each layer located above the lower column can be installed first.

In the case where the slab concrete is paved prior to completion of the pillar due to the pillar concrete (C) casting, it is necessary to temporarily support the upper load of the paved slab concrete or the like with only the pillar structure without concrete paved.

However, when the pillar structure is completed and the pillar is completed, the steel constituting the pillar structure and the concrete placed thereon are integrated with each other, and the upper load such as the slab concrete is burdened together. In order to temporarily support the column structure, there is a room for enlarging the size of the column structure. This increases the amount of steel used, which is not only economical but also increases the cross section of the column, thereby causing a problem of reducing the use space of the building.

However, as described above, the post structure in which the form 80 is pre-assembled solves these problems by utilizing the pre-assembly form 80 as an auxiliary structural member.

In other words, until the column concrete C is inserted, the pre-assembly form 80 supports the column structure together with the upper load to prevent buckling of the column structure, and after the column concrete C is poured and cured By making the pre-assembly form 80 separate, it is possible to prevent the enlargement of the cross-section of the column structure and the reduction of the space used for the building.

In addition, in order to allow the concrete slab to be placed ahead of the column located at the lower part of the slab, it is necessary that the post-casting of the pipe or the like passing through the slab concrete is performed so that the concrete can be poured into the column structure after the slab concrete is cured A concrete pouring hole must be provided in advance.

However, in the column structure according to the present invention, the cross-sectional shape of the spacing steel 11 is specified so that concrete pouring holes are formed naturally so that it is possible to omit a separate operation such as embedding a pipe as described above, It plays a role of a hole to enable the concrete filling of the concrete.

In order to do this, at least the spacing steel 11 located in the section (a) where the steel bars 60 are installed is constituted by a channel 11a and the opening of the channel 11a is positioned on the outer surface of the vertical fixed steel 10 So that the upper and lower communication holes 12 are formed. In addition, the upper end of the C channel 11a should protrude from the upper surface of the slab concrete, and the lower end should be located inside the upper end of the pre-assembly form 80.

On the other hand, there is a possibility that the concrete leaks into the inside of the column structure through the section (a) where the steel frame 60 is installed at the time of laying the line of the slab concrete. As a means for preventing this, (40) may be further provided in the section (a) in which the first and second plates (60, 60) are installed.

In addition, a mounting stand 50 attached to the spacing steel 11 is installed on the upper part of the pre-assembly form 80 to facilitate the installation of the deck plate. Fig. 13 shows an example in which the above-mentioned membrane is provided with the plate 40 and the holder 50. Fig.

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 above description, the structure of the column structure is described as an example in which the steel beam 60 is penetrated. However, the column structure is not necessarily applied thereto, but the U- It is clear that it can be applied to It is therefore intended that such modifications are within the scope of the invention as set forth in the claims.

10; Vertical fixed steel 10a; side
10b; End face 11; Isolated river
11a; Channel 12; A communicating ball
20; Template 21; The projecting surface
22; Through hole 25; Fixed end
30; Vertical reinforcement 31; Coupler
40; The membrane plate 50; holder
60; Steel frame 60a; Upper flange
60b; A lower flange 70; Diaphragm
71; Abutment surface 80; Mold

Claims (9)

A template 20 that connects the vertical fixed steel 10 positioned at each corner of the rectangular cross section and the angles of the vertical fixed steel 10 to maintain the shape of the rectangular cross section, And a vertical reinforcing bar (30)
The template 20 has a shape of four protrusions 21 and is formed such that the width d 1 of each of the protrusions 21 is equal to or greater than the width d 2 of the steel bar 60 ,
The vertical reinforcement 30 is fixedly attached to the outer surface of the vertical fixing steel 10 so that an opening K is formed between the two vertical fixing steel 10 so that the steel beam 60 can be installed horizontally A structural column structure with a universal joint structure of a beam structure. delete The apparatus according to claim 1, wherein the template (20) is installed on the vertical fixing steel (10) such that a pair of the template (20) are vertically opposed to each other with an interval equal to the dancing of the steel frame beams (60) Wherein the columnar structure has a general joint structure of the beam structure. The universal joint of claim 1, wherein the template (20) is provided such that each projection surface (21) protrudes from the outer surface of the vertical fixing steel (10) by at least the diameter of the vertical steel reinforcement Assembly column structure with structure. The diaphragm (70) according to claim 1, wherein a diaphragm (70) is attached to the vertical fixed steel (10) at a position where the steel beam (60) , And the joining surface (71) has the same width as the projecting surface (21) of the template (20). The joining surface (71) Assembly column structure. The assembly column structure according to claim 1, wherein each vertical fixing steel (10) is further provided with spacing steel (11) having the same height as the concrete covering thickness. The method of claim 6, wherein a plurality of spaced apart steel (11) are installed at regular intervals, and the spaced steel (11) located in a section (a) An open portion of the channel (11a) is provided so as to be positioned on the outer surface of the vertical fixing steel (10) to form a vertically long communication hole (12)
Wherein a pre-assembly formwork (80) to be separated after the column concrete (C) is laid is installed and installed on the outer surface of the spaced steel (11) in a space (b) Assembly structure having a universal joint structure. The assembly column structure according to claim 7, wherein a plate (40) is further provided in a section (a) where the steel beam (60) is installed. The assembly structure according to claim 7, wherein the pre-assembly form (80) further comprises a mount stand (50) for a deck plate attached to the spaced steel (11) Structure.

Images