KR20180135736A - Mega multi-tube column with a dual structural concept - Google Patents

Abstract

The present invention relates to a mega multi-tube column with a dual structural concept, that is, concrete is filled in a column structure of a steel material to construct a composite column member of a large cross section. The column structure comprises: a vertical square tube arranged in at least each edge in a vertical direction; a horizontal square tube arranged in a horizontal direction, and fixing a position of the vertical square tube; and a steel plate material installed by being in contact with an external surface of the vertical square tube. Moreover, a plurality of concrete deposited holes are vertically formed in the vertical square tube.

Description

[0002] MEGA MULTI-TUBE COLUMN WITH A DUAL STRUCTURAL CONCEPT [0003]

The present invention relates to a column member having a large cross section in which a steel material and a concrete are combined and constructed. More specifically, it is possible to easily install a closed concrete by using a plurality of square steel pipe tubes, The present invention relates to a structure of a column member having a high-efficiency structural large-sized cross-section.

Buildings such as clean rooms in semiconductor factories are usually made of RC or SRC column structures with large cross-sections so that they can be advantageously resistant to vibration and have high rigidity.

One example of such a column structure has been proposed. The column structure described above is an invention entitled " Mega column and its construction method ", which is disclosed in Patent Registration No. 10-1587583, A first lattice material 12 for interconnecting the mold steel material 11 of the mega column and the adjacent mold steel material 11 constituting the outer surface of the mega column, And a first die (14) coupled to an outer surface of the first lattice material (12), wherein the pre-assembly column unit (1) is constituted by a first lattice material (13) The unit 1 is arranged at four corners of the mega column so as to be spaced apart from each other so that the space portion 2 is formed between the linear assembly column units 1 and the outer adjacent molds 1, The steel material 11 is interconnected with the third lattice material 21, The inner side adjacent mold steel material 11 of the pre-assembled column unit 1 is connected to the fourth lattice 22 and the second mold 23 is coupled to the outside of the third lattice material 21 do.

In order to solve the problem that the reinforcing bars are not easy to work in a narrow space, the mega-column has a large number of pre-assembled column units 1 So that the space portion 2 formed between the pre-assembly column units 1 can be used as a passage of the operator. In addition, the mega column is arranged so that the U-shaped reinforcing bars 18 are arranged in the horizontal direction so as to omit the installation of the reinforcing bars.

However, since the mega-column of the above-described prior art has to assemble a plurality of pre-assembling column units 1, a vertical steel material (an inner-side cast steel material) The vertical steel material is structurally poor in cross-sectional performance, which causes a problem of increasing the amount of unnecessary steel material used.

In order to perform the role of the U-shaped reinforcing bar 18, the U-shaped reinforcing bars 18 must remain in place until the concrete is completely put into place. Therefore, a separate support bar that can withstand the impact of concrete is needed while fixing the inner end of the U-shaped reinforcing bar 18, which not only complicates the interior of the mega column, As a result of the problem.

KR 10-1587583 B1

It is an object of the present invention to solve the above-mentioned problems of the prior arts, and it is an object of the present invention to improve the sectional efficiency of a steel material to be used and to construct an economic cross section of a synthetic column, It is an object of the present invention to provide a mega multi-tube column having a dual structural concept in which a high-quality synthetic column is constructed by allowing a solid filling of concrete without causing material separation.

According to a most preferred embodiment of the present invention for solving the above problems, concrete is synthesized with a columnar structure having a rectangular cross section made of a steel material. The columnar structure includes at least a rectangular tube arranged perpendicularly to each corner, A horizontal square tube which is arranged in a horizontal direction to fix the position of the rectangular tube and a steel plate material which is arranged in contact with an outer surface of the vertical tube, and a plurality of concrete insertion holes are formed in the vertical tube in the vertical tube There is provided a mega multi-tube column having a dual structural concept.

Wherein the horizontal square tube is attached to an inner surface of a rectangular tube having an inner and outer surface thickness equal to or greater than a concrete covering thickness, a vertical steel reinforcing bar is vertically disposed on an inner surface or an outer surface of the horizontal square tube, Loop can be wrapped.

In another embodiment of the present invention, a horizontal square tube is attached to the inner surface of the rectangular tube, and the steel plate material attached to the outer surface of the rectangular tube is provided with a support leg which is horizontally bent at the upper and lower ends of the flat plate, The length of which is equal to or greater than the thickness of the concrete jacket.

In the present invention, the steel sheet material and the square tube resist the installation load in the construction step, and the CFT structure in which the steel sheet material of the outer shell and the concrete filled therein are combined in the use step, , The RC structure of concrete and coated steel is resistant to sudden load. By adopting the concept of step-by-step structure, it is possible to use steel material efficiently while reducing materials and construction costs such as refractory paint, The vertical steel members are disposed only on the outer side while maximizing the sectional efficiency of the steel material to be used, thereby making it possible to construct economical large-scale composite columns.

Further, the present invention facilitates joining assembly between the members by using a non-directional square tube and facilitates the restraining work for the vertical reinforcing bars by using the loop material as a flexible wire, thereby realizing precise manufacture of the column structure .

Further, the present invention can reduce the number of equipment used by using the square tube as a trestle tube, prevent the separation of the material of the concrete, and simultaneously pour in each direction of the cross section, And it is possible to build reliable and high quality synthetic columns.

Further, the present invention facilitates the joining operation in the field with respect to the vertical direction of the column structure by using the rectangular tube and the quick tube.

1 is a cross-sectional view of a prior art mega-column.
FIG. 2 is an exploded perspective view of a mega multi-tube column of dual structural concept according to an embodiment of the present invention. FIG.
3 is a cross-sectional view of one embodiment of the mega multi-tube column.
4 is a cross-sectional view illustrating a process of pouring concrete using the rectangular tube of the present invention.
5 is a cross-sectional view of a state in which the perimeter of a vertical reinforcing bar of the present invention is wound around a flexible wire.
6 is a cross-sectional view of a second embodiment of the dual structural concept of the mega multi-tube column of the present invention.
7 is a cross-sectional view of a third embodiment of the dual structural concept of the mega multi-tube column of the present invention.
To 8 to 12 are a perspective view and a cross-sectional view of each embodiment relating to the structure of the steel sheet material of the present invention.
13 is a perspective view showing a process of joining 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.

FIG. 2 is a partially cutaway perspective view for explaining the inside of a mega multi-tube column having a dual structural concept according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view of a mega multi- to be.

The mega multi-tube column of the dual structural concept of the present invention is a synthetic column having a large cross-sectional structure which is constructed by synthesizing a concrete 200 with a rectangular column structure 100 made of a steel material, And 3, the shape of a three-dimensional tube frame structure in which a plurality of tubes are vertically and horizontally assembled.

In the column structure 100, a plurality of rectangular tubes 110 are arranged in the vertical direction at least at each corner, and a plurality of rectangular tubes 110 or angles (not shown) are further disposed between the columns in accordance with the cross- Shape.

The vertical rectangular tubes 110 arranged in the vertical direction are fixed in position by the horizontal rectangular tubes 120 arranged in the horizontal direction so that the vertical rectangular tubes 120 have the shape of the solid framework as a whole. Of course, the horizontal square tube 120 may be smaller in cross section than the rectangular tube 110.

Since the vertical rectangle tube 110 installed vertically serves as a structural steel member of the composite column in which the concrete 200 is installed, it is not only improved in the ratio of the reinforcement ratio, but also is non-directional, Thereby facilitating the connection with the horizontal square tube 120 or the steel plate member 150 to be described later, thereby improving the assembling performance of the column structure 100.

However, more importantly, since the water tube 110 functions as a pouring passage for the concrete 200 such as a trestle tube, the material separation phenomenon can be prevented from occurring in the concrete 200 placed in the column structure 100 Reliable and high-quality synthetic pillars can be expected.

For this, a plurality of concrete insertion holes 111 are formed in the vertical tube 110 in the vertical direction.

That is, the concrete 200 injected into the rectangular tube 110 is pushed into the column structure 100 by the concrete insertion holes 111, and the concrete discharged into the column structure 100 by the above- (200) gradually increases from the lower portion of the columnar structure (100). As a result, the phenomenon of material separation, which is normally caused by puddling from above, is not generated. The plurality of rectangular tubes 110 disposed at the rim enables the concrete 200 to be uniformly placed on each section of the column structure 100, thereby realizing a high-quality composite column of a high quality.

FIG. 4 conceptually illustrates a process of placing the concrete 200 in the columnar structure 100 by making the rectangular tube 110 serve as a trestle tube as described above.

The concrete pouring hole 111 has continuity between the concrete 200 filled in the rectangular tube 110 and the concrete 200 outside the concrete pouring hole so that the concrete 200 in the pillar structure 100, Thereby enhancing the integrity between the tube 110 and the composite material 200, thereby further enhancing the effect of the synthesis between the steel material and the concrete 200.

It is preferable that the concrete casting holes 111 of the rectangular tube 110 having such an action effect have a shape of a long slit up and down. In order to prevent excessive input of the concrete 200, At appropriate intervals.

The anchor hole 112 or the shear connection member such as a stud for integrating the concrete 200 inside and outside the rectangular tube 110 may be additionally provided in the rectangular tube 110, have.

 In addition, a braze material (not shown) may be partially installed between the rectangular tubes 110 to reinforce rigidity at the time of construction.

In addition, at least the above-mentioned rectangular tube 110 provided at each corner of the column structure 100 facilitates connection of the column structure 100 to the joint. This is explained in detail later.

The horizontal rectangular tube 120, which is horizontally joined to the rectangular tube 110, is connected to the inner concrete 200 in such a manner that the vertical tube 110 can maintain its position as described above, Thereby increasing the constraint effect.

In addition, the horizontal rectangular tube 120 is not only increased in bending stiffness through an effective cross section, but also has a flat surface perpendicular to each other on all four sides as in the case of the rectangular tube 110, so that other members such as the rectangular tube 110, The joining operation with the reinforcing bar 130 becomes easier.

Meanwhile, the mega multi-tube column of the dual structure concept of the present invention differs from the general structure in which the plate material attached to the outer surface of the concrete is set to either a structural material or a non-structural material, The steel structure 150 is used as a structural member and used as a SRC composite column having a CFT structure having a constraining effect of concrete 200. In the event of a fire, the structural function of the steel plate 150 is ignored and calculated as RC columns And to have a dual structural concept.

Therefore, the steel plate material 150 forming the outer surface of the column structure 100 does not require refractory treatment such as refractory coating.

Each of the embodiments of the dual structure concept of the present invention may be modified in accordance with the coupling type between the rectangular tube 110 and the horizontal tube 120, The coupling relationship between the constituent elements of the column structure 100 is changed according to each of the embodiments.

3 and 5 relate to the first embodiment in which the horizontal rectangular tube 120 is installed on the inner surface of the rectangular tube 110.

In the first embodiment, the RC vertical reinforcement 130 is further disposed in the concrete 200 in the synthetic column. The vertical reinforcing bars 130 are arranged in a vertical direction on the outer surface of the horizontal rectangular tube 120 to serve as the main rods of the RC columns.

A loop member 140 is further provided around the vertical reinforcing bar 130 so as to maintain its function as a main bar.

FIGS. 3 and 5 show embodiments in which the loop member 140 is provided around the vertical reinforcing bars 130.

It is preferable that the loop member 140 integrally surrounds all of the vertical reinforcing bars 130. When the column building 100 is a large flat surface, Is not easy.

In addition, since the inner surface of the rectangular tube 110 is in contact with the outer surface of the horizontal rectangular tube 120 and the bending deformation of the reinforcing member is not easy, It becomes difficult to arrange a conventional band bar.

Therefore, in one embodiment of the loop material 140 of the present invention, as shown in FIG. 3, a plurality of strip reinforcing bars 141 wrapping only a part of the vertical reinforcing bars 130 may be divided into a plurality of compartments.

However, in the loop member 140 according to the present invention, since the loop member 140 is divided into the plurality of sections, the amount of work for the narrow space is greatly increased. The use of wire 142 solves the problems described above.

The characteristic that the flexible wire 142 is easy to bend and deform is that the entire vertical reinforcing bar 130 is moved to the inner side of the rectangular tube 110 in such a manner that the flexible wire 142 wound in a roll- As shown in FIG. 5, so that the installation work amount of the loop material 140 is not increased.

6, the horizontal rectangular tube 120 is installed on the inner surface of the rectangular tube 110, but the vertical reinforcing bar 130 is disposed on the inner surface of the horizontal rectangular tube 120, as in the first embodiment, In the vertical direction.

As described above, in the second embodiment, since the horizontal rectangular tube 120 surrounds the vertical reinforcing bars 120 and serves as a reinforcing bar for preventing buckling of the vertical reinforcing bars 130, (140) can be reduced by the same amount.

In the first and second embodiments described above, the concrete 200 in which the vertical reinforcing bars 130 are buried acts as RC columns when a fire occurs. The thickness of the covering ribs 130 or the horizontal rectangular tubes 120 . At this time, the rectangular tube 110 is utilized as means by which the concrete covering thickness can be maintained when the concrete 200 is poured into the column structure 100. Therefore, in the first and second embodiments, the width d 1 between the inner and outer surfaces of the rectangular tube 110 should be equal to or greater than the concrete covering thickness.

7 illustrates a third embodiment in which the horizontal square tube 120 is attached to the inner surface of the rectangular tube 110 in that the horizontal square tube 120 is attached to the outer surface of the rectangular tube 110 This is different from the first and second embodiments.

That is, in the third embodiment, the horizontal square tube 120 is utilized as means for maintaining the thickness of the concrete covering. Therefore, the width d2 between the inner and outer surfaces of the horizontal square tube 120 should be equal to or greater than the thickness of the concrete covering. In this case, the diameter of the rectangular tube 110 located on the inner surface of the horizontal square tube 120, It is designed as a structural material that satisfies refractory conditions even in the case of fire due to vertical steel material.

A restraining bar 115 may be further provided for securing the rectangular tube 110 to the horizontal square tube 120 for strong binding force between the rectangular tube 110 and the horizontal square tube 120.

In this third embodiment, the vertical reinforcing bar 130 can be omitted or the number of the installation can be minimized, so that workability and economy are improved as compared with the first and second embodiments.

A fourth embodiment related to the dual structural concept is shown in FIG. 11, in which a steel plate member 150 attached to the outer surface of the rectangular tube 110 functions as a concrete covering thickness maintaining means. This is explained in detail later.

When the installation of the loop member 140 to the vertical bar 130 is completed or the installation of the horizontal rectangular tube 120 to the outer surface of the vertical tube 110 is completed, A steel plate material (150) is placed in contact with the outer surface of the square tube (120).

As described above, the steel plate member 150 is treated as a non-structural member in the event of a fire, but in a normal situation, the end of the column structure 100 is closed to exert a constraining effect on the concrete 200 placed thereon, Together with high rigidity. Of course, the steel sheet material 150 may be treated as a structural material even in the event of a fire by refractory treatment such as refractory paint.

Figs. 8 to 12 show respective embodiments of the above-mentioned steel plate material 150, Fig. 8 shows an example of a plate-type thick plate, Figs. 9 and 10 show a deck plate in which ribs are formed on a thin plate FIGS. 11 and 12 show examples of the steel sheet material 150 constructed in accordance with the fourth and fifth embodiments of the dual structure concept described above. FIG.

When a steel plate is used as a formwork for constructing a concrete column of a large cross section, a thin plate is usually used, but it is possible to resist the side pressure of the concrete being laid by increasing the bending stiffness by forming the unevenness.

However, when a tie bar is used for such a thin plate, deformation is likely to occur at a position where the tie bar is fixed. As a means for maintaining the spacing between the dies, a tie bar that is easy to work can not be used. It is common to use tie bands.

In contrast, in the embodiment shown in FIG. 8 of the present invention, the steel plate 150 is not easily deformed by a local load by using a plate-like thick plate, and a gap is maintained between the steel plates 150 facing each other The use of the tie bar 155 is improved and workability is improved.

9 and 10 illustrate still another embodiment of a steel plate material 150 according to the present invention. In FIGS. 9 and 10, a deck plate-shaped unit horizontal plate 151 or a unit having ribs 151a and 152a inwardly using a thin plate, A plurality of the vertical plate members 152 are arranged vertically or horizontally so as to constitute the steel plate member 150.

The ribs 151a and 152a not only improve the flexural rigidity of the steel plate member 150 but also improve the composite force between the concrete 200 and the steel plate member 150 by being embedded in the concrete 200 to have structural integrity .

The steel plate material 150 of the embodiment shown in Fig. 11 has a plurality of unit horizontal plates 153 composed of an outer flat plate 153a and a support leg 153b bent horizontally at the upper and lower ends of the flat plate, As shown in FIG.

The length d3 of the support leg 153b is set to be greater than the length d3 of the support leg 153b by the steel plate 150 having the support leg 153b. The thickness of the coating should be more than.

The steel plate member 150 of the embodiment shown in FIG. 12 is configured by arranging a plurality of unit vertical plate members 154 having a concave-convex shape in the horizontal direction.

Each of the unit vertical plates 154 having the concave and convex shape is attached to the rectangular tube 110 via a spacing member 158 such as a C channel. The width d4 of the spacer 158, Should be at least as long as the coating thickness of the concrete for the rectangular tube 110 can be maintained.

This embodiment of Figures 11 and 12 allows the vertical tube 130 to be substituted for the vertical tube 130 as in the third embodiment described above with respect to the dual structural concept, So that the number of such installations can be reduced.

The column structure 100 constructed such that the concrete 200 is installed so that the mega multi-tube column of the dual structural concept of the present invention can be constructed can be connected to several columns depending on the size of the building.

FIG. 13 shows a process in which two column structures 100 located at upper and lower sides are connected to each other.

A part of the quick tube 160 for connection is inserted into the rectangular tube 110 at the end of the column structure 100 of one side, and these are integrated by welding or bolting. A welding groove 113 or a bolt hole may be formed in advance in the rectangular tube 110 for integration with the quick tube 160.

When the installation of the one column structure 100 to the rectangular tube 110 is completed with a part of the quick tube 160 protruded, the quick tube 110 of the other column structure 100 is inserted into the quick tube 110 of the other column structure 100, A welding or bolting work is performed to fit the protruding portion of the quick tube 160 into the quick tube 160 and to integrate the quick tube 110 with the quick tube 160 in the same manner as the previously described prior art.

In addition to the jointing of the vertical tube 110, the vertical reinforcement 130 is also connected using a coupler 170 or the like.

As described above, the column structure 100 of the mega multi-tube column having the dual structural concept of the present invention can be manufactured by forming the main vertical and horizontal frames into a square tube, thereby realizing a satisfactory filling performance and easiness of connection of the concrete 200 So that high-quality synthetic columns can be constructed.

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. It is therefore intended that such modifications are within the scope of the invention as set forth in the claims.

100; Column structure 110; Rectangular tube
111; Concrete pouring ball 112; Anchor ball
113; Welding groove 115; Restraint bar
120; A horizontal square tube 130; Vertical rebar
140; Loop material 141; Band bar
142; A flexible wire 150; Steel plate material
151, 153; Unit horizontal plates 151a and 152a; live
152, 154; A unit vertical plate 153a; reputation
153b; Support legs 155; Taiba
158; Spacing members 160; Quick tube
170; Coupler 200; concrete

Claims (12)

The concrete 200 is a composite of a square column structure 100 made of a steel material,
The column structure 100 includes a rectangular tube 110 disposed at least vertically to each corner, a horizontal square tube 120 disposed in a horizontal direction to fix the position of the rectangular tube 110, And a steel plate member 150 provided in contact with the outer surface of the rectangular tube 110,
And a plurality of concrete casting holes (111) are formed in the vertical tube (110) in the vertical direction. The method according to claim 1,
The horizontal rectangular tube 120 is attached to the inner surface of the rectangular tube 110. A vertical reinforcing bar 130 is vertically disposed on the outer surface of the horizontal rectangular tube 120, And a loop material (140) is wrapped around the mega multi-tube column. 3. The method of claim 2,
Wherein the loop member 140 is a flexible wire that encloses all of the vertical reinforcing bars 130 inside the rectangular tube 110. The mega multi- The method according to claim 1,
The horizontal rectangle tube 120 is installed on the inner surface of the vertical rectangle tube 110. The vertical rectangle 130 is vertically disposed on the inner surface of the horizontal rectangle tube 120, And a loop material (140) is wrapped around the mega multi-tube column. The method according to claim 2 or 4,
And the width d 1 between the inner and outer surfaces of the rectangular tube 110 is equal to or greater than the concrete coating thickness. The method according to claim 1,
Wherein the horizontal square tube 120 is attached to the outer surface of the rectangular tube 110 and the width d 2 between the inner and outer surfaces of the horizontal square tube 120 is equal to or greater than the concrete covering thickness. Mega Multi Tube Column. The method according to claim 1,
The mega multi-tube column according to the dual structure concept of the present invention is characterized in that the steel plate material (150) is a flat plate type and the tie bar (155) is provided between the steel plate materials (150) The method according to claim 1,
The mega multi-tube column according to the dual structure concept of the present invention is characterized in that the steel plate material (150) is constituted by a unit horizontal plate material (151) having ribs (151a) formed on the inside thereof to be embedded in the concrete (200). The method according to claim 1,
The mega multi-tube column according to the dual structure concept of the present invention is characterized in that the steel plate material (150) is constituted by a unit vertical plate material (152) having a rib (152a) formed on the inner side so as to be embedded in the concrete (200). The method according to claim 2 or 4,
The steel plate material 150 includes a unit horizontal plate 153 having a support leg 153b that is horizontally bent at the upper and lower ends of a flat plate 153a, d < 3 > is equal to or greater than the concrete covering thickness for the rectangular tube (110). The method according to claim 2 or 4,
The steel plate member 150 includes a unitary vertical plate members 154 having a concavo-convex shape and arranged continuously in the horizontal direction. The plate member 150 has a spacing member 158 having a width d4 equal to or greater than the concrete covering thickness of the rectangular tube 110, Is installed on the rectangular tube (110) by way of a hollow tube (140). The method according to claim 1,
Wherein the diaphragm tube (110) is connected by an in-line tube (160) inserted therein.

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