KR101672991B1 - Pre-assembled structure for reinforced concrete column - Google Patents

Abstract

The present invention relates to a prefabricated structure for a reinforced concrete column, wherein a prefabricated structure for a reinforced concrete column according to the present invention is a prefabricated reinforced concrete column prefabricated for a reinforced concrete frame, A first joining portion disposed in a direction intersecting with the cast iron rope; and a second joining portion disposed in a direction intersecting the cast iron rope, wherein the first joining portion is disposed in a direction intersecting with the cast iron rope, A fixing member disposed at both ends of the first engaging portion and having a cast iron root fixing portion for fixing the first engaging portion to the cast iron root, And a finishing panel formed on the inner side surface of the second coupling part to be engaged with the first coupling part to finish each side of the pillars. Thereby, a prefabricated structure for a reinforced concrete column is provided, which can provide a rigid coupling force while allowing a simple connection of the finishing panel to the prefabricated rebar unit assembly.

Description

PRE-ASSEMBLED STRUCTURE FOR REINFORCED CONCRETE COLUMN [0002]

The present invention relates to a pre-assembled structure for a reinforced concrete column, and more particularly, to a pre-assembled structure for a reinforced concrete column, which can provide a fastening force to a pre- .

Generally, a mold is a structure temporarily installed to make a concrete having a fluidity in a predetermined shape and dimensions for a short period of time until the concrete is cured to some extent, and it is generally removed after the curing of concrete proceeds.

Conventionally, the formwork includes a clam panel which is in contact with concrete, a strut, a wale, and a long settlement supporting the concrete, and it takes a considerable amount of time to assemble and disassemble the formwork as well as an excessive amount of material. In addition, since the formwork has a considerable weight, there is a danger in assembling and disassembling the material. In the case of the iron formwork, it is necessary to assemble and disassemble with mobile equipment such as a crane due to its own weight, There was a disadvantage.

As described above, the increase of the material and the construction amount required for the formwork construction is the main cause of the construction cost and the air increase, and the installation and disassembly of the formwork is a troublesome process which occupies a large part of the construction cost and the process of the entire concrete construction.

In order to solve such a problem, a PRC (Prefabricated Reinforced Concrete) structure in which a reinforcing portion of a reinforced concrete member is pre-assembled at a factory and transported to a site like a steel frame has been developed. However, a concrete structure is installed on the site, The conventional formwork process of demolishing the steel structure remained intact, so that the shortest construction period, which is the greatest advantage of the steel structure, could not be completely overcome.

In addition, since the depth of the concrete poured into the column is from 3m to 10m, very large pressure acts on the formwork. Therefore, there is an urgent need for a permanent mold capable of maximizing the height at which the temporary installation can be maximized, without causing safety accidents due to deformation or collapse of the form due to the side pressure of the concrete.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a reinforced concrete pillar capable of overcoming the problems of overworking of conventional material formwork, increasing the number of formers due to the conventional formwork construction, And to provide a line assembly structure.

It is also an object of the present invention to provide a prefabricated reinforced concrete column prefabricated structure capable of simply attaching a finishing panel to a prefabricated reinforced concrete unit assembly, while still providing a strong bonding force.

This object is solved according to the present invention by providing a prefabricated reinforced concrete column prefabricated in a factory for a reinforced concrete frame structure, the prefabricated structure comprising: a cast iron rope disposed in a longitudinal direction at a position corresponding to an edge of the column; A first joint portion disposed in a direction intersecting with the cast iron muscle and a second joint portion disposed at both ends of the first joint portion to fix the first joint portion to a cast iron root, A fixing member formed with a fixing portion and disposed at a position corresponding to a side surface of the column, respectively; And a finishing panel having a second engaging portion formed on an inner surface thereof to engage with the first engaging portion to finish each side surface of the column.

Here, it is preferable that the second engaging portion protrudes from the inner surface of the finishing panel.

Preferably, the second engaging portion extends in a direction parallel to the first engaging portion.

In addition, a plurality of the finishing panels are provided and are arranged continuously in the longitudinal direction of the column, the second engaging portions are disposed at least at the upper end and the lower end of the finishing panel respectively, and the receiving grooves of the second engaging portion disposed at the lower end of the finishing panel, And the second engaging portion disposed on the second engaging portion.

Preferably, the fixing member includes a connecting portion that connects the cast iron root fixing portion and the first coupling portion such that the first coupling portion is spaced apart from the cast iron root.

In addition, it is preferable that the cast iron root fixing portion is formed in a ring shape surrounding the cast iron root.

It is also preferable that the fixing members disposed on the side surfaces of the adjacent pair of columns are arranged to be offset from each other with respect to the longitudinal direction of the column.

It is further preferable that the apparatus further includes a corner member surrounding the connection portion of the finishing panel disposed on the sides of the pillars adjacent to each other.

In addition, it is preferable that the cast iron reinforcing bars constitute a unit assembly, and a pair of unit assemblies disposed adjacent to each other are fastened by a fastening member in a state where the brackets formed at the respective end portions are in contact with each other.

Preferably, the bracket includes a butt portion formed with a fastening hole into which the fastening member is inserted and disposed in the direction of the cross section of the column, and a side portion extending from the butted portion in the longitudinal direction of the column to be fixed to the cast iron root.

It is also preferable that the connection reinforcing bars are fixed in a state in which they are overlapped with the main reinforcing bars of the pair of unit assemblies whose both ends are disposed adjacent to each other to connect the two main reinforcing bars.

According to the present invention,

There is provided a prefabricated reinforced concrete column prefabricated structure capable of solving the problem of overworking of materials due to the conventional conventional formwork construction, increasing the number of formworks due to the above, and increasing the construction cost and construction amount.

Also provided is a prefabricated structure for a reinforced concrete column that can provide a rigid bond while providing a simple connection of the finished panel to the prefabricated rebar unit assembly.

1 is a perspective view of a prefabricated structure for a reinforced concrete column according to the present invention,
2 is an exploded perspective view of a prefabricated structure for a reinforced concrete column according to the present invention,
3 is an exploded perspective view of a fixing member according to a pre-assembly structure for a reinforced concrete column of the present invention,
FIG. 4 is a plan view of a prefabricated structure for a reinforced concrete column according to the present invention,
5 is a partial side sectional view of a prefabricated structure for a reinforced concrete column according to the present invention,
FIG. 6 is a perspective view of a pre-assembly structure for a reinforced concrete column according to a second embodiment of the present invention,
FIG. 7 is an exploded perspective view of a pre-assembly structure for a reinforced concrete column according to a second embodiment of the present invention, FIG.
FIG. 8 is an exploded perspective view of a pre-assembly structure for a reinforced concrete column according to a second embodiment of the present invention, FIG.
9 is a sectional view taken along the line A-A 'in Fig.

Prior to the description, components having the same configuration are denoted by the same reference numerals as those in the first embodiment. In other embodiments, configurations different from those of the first embodiment will be described do.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a prefabricated structure for a reinforced concrete column according to a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a prefabricated structure for a reinforced concrete column according to the present invention, FIG. 2 is an exploded perspective view of a prefabricated reinforced concrete column according to the present invention, and FIG. FIG. 3 is an exploded perspective view of the fixing member 130.

The prefabricated reinforced concrete column prefabricated structure of the present invention as shown in the drawing is assembled in advance in a factory for constructing a reinforced concrete column structure and includes a main steel bar 110, a steel bar 120, a fixing member 130, And a finishing panel 140.

The number and diameter of the cast iron rods 110 are determined in accordance with the strength design calculated by referring to the cross-sectional area, the height, and the load resistance of the column. . Although not shown in the drawings, auxiliary ropes may be further disposed between the cast iron rods 110 to increase rigidity.

The strip reinforcing bars 120 surround the reinforcing rods 110 to bind the reinforcing rods 110 and are spaced apart from each other along the longitudinal direction of the reinforcing rods 110. The reinforcing bars 120 and the reinforcing rods 110, Can be connected using a connecting wire.

The fixing member 130 may be formed by bending a metal wire having a predetermined thickness and strength, and a plurality of the fixing members 130 are disposed along the longitudinal direction of the column at positions corresponding to the respective sides of the column to fix the finishing panel 140 .

The fixing member 130 includes a first engaging portion 131 disposed in a direction intersecting with the main iron core 110 and a second engaging portion 131 disposed at both ends of the first engaging portion 131, And the first coupling part 131 and the first coupling part 131 are connected to each other so that the first coupling part 131 is separated from the main iron core 110 The horizontal connection part 133 and the first connection part 131 extend upward from the horizontal connection part 133 so as to be spaced upward from the horizontal connection part 133, And a vertical connection part 134 connecting the first connection part 131 and the second connection part 131. The primary connection part 132 is formed in a ring shape surrounding the cast iron rope 110, The cast iron reinforcement parts 132 are arranged symmetrically with respect to each other.

The finishing panel 140 has a second engaging portion 141 formed on an inner surface thereof to be engaged with the first engaging portion 131 to finish each side of the first engaging portion 141, Protrudes from the inner surface of the panel 140 and extends in a direction parallel to the first engaging portion 131. [ The second coupling portion 141 may be integrally formed with the finishing panel 140 by bending and forming a metal plate for forming the finishing panel 140.

Particularly, the first engaging portion 131 of the fixing member 130 is disposed to face the upper side of the column, and the second engaging portion 141 of the finishing panel 140 is disposed to face the lower side of the column So that the first engaging part 131 and the second engaging part 141 can be engaged with each other.

A plurality of the finishing panels 140 are disposed continuously in the longitudinal direction of the column, and the second engaging portions 141 are disposed at least at the upper end and the lower end of the finishing panel 140, respectively. The second coupling portion 141 disposed at the lower end of the finishing panel 140 is configured to receive the second coupling portion 141 disposed at the upper end of the adjacent finishing panel 140. Therefore, the connection portions of the plurality of finishing panels 140, which are disposed adjacent to each other along the longitudinal direction of the column, are not overlapped with each other without generating a step between the outer surfaces of the pair of the finishing panels 140, (130), it is possible to prevent the connection portion from being deformed or damaged by the side pressure of the concrete.

Since the vertical connection part 134 is vertically bent at both ends of the first connection part 131 and disposed between the first connection part 131 and the horizontal connection part 133, The first coupling part 131 may prevent the second coupling part 141 from contacting the horizontal coupling part 133 in a state where the second coupling part 141 of the finishing panel 140 is engaged.

In order to prevent the second engaging portions 141 formed on the adjacent side surfaces of the finishing panel 140 from overlapping with each other at the corners of the column, the fixing member 130 disposed on the side surfaces of the adjacent pair of columns, Are staggered with respect to the longitudinal direction of the column.

In addition, the present invention is characterized in that it has an "a" -shaped cross-section so as to enhance the quality of the construction finishing by preventing the concrete from flowing to the connecting portion by wrapping the corner portion of the column or exposing the sharp end of the finishing panel 140 And a corner member 150 fixed to the finishing panel 140 in a state of enclosing the connecting portion of the finishing panel 140 disposed on both sides of the adjacent pillars.

Now, the operation of the first embodiment of the reinforced concrete column prefabricated structure will be described.

FIG. 4 is a plan view of a pre-assembled structure for a reinforced concrete column according to the present invention, and FIG. 5 is a partial sectional view of a pre-assembled structure for a reinforced concrete column of the present invention.

As shown in the drawing, the cast iron rods 110 are arranged in the longitudinal direction at positions corresponding to the respective corners of the column, the band bars 120 are arranged in the lateral direction intersecting the cast iron rods 110, And the intersecting portions of the main steel bar 110 and the band bar 120 are fixed by welding or connecting wire to constitute a column frame.

The fixing member 130 is fastened in such a form as to surround a pair of cast iron rods 110 disposed on both sides of the column side and having a ring-shaped cast iron root fixing portion 132 formed at both ends of the first coupling portion 131, The connection portion between the main reinforcement 132 and the main reinforcement 110 may be fixed by welding or a connecting wire.

The first engaging portion 131 of the fixing member 130 fixed to the cast iron rope 110 is horizontally moved from the side of the column by the horizontal connecting portion 133 They are spaced apart by a predetermined distance. Therefore, it is not necessary to provide a spacing spacer for maintaining spacing between the cast iron rope 110 and the finishing panel 140.

The first engaging portion 131 of the fixing member 130 is connected to the horizontal connecting portion 133 by the vertical connecting portion 134 When viewed from the side, is formed in the form of a ring protruding in an approximately upward direction. The second engaging portion 141 of the finishing panel 140 is formed in the form of a ring protruding in a substantially downward direction when viewed from the side. Therefore, when the second coupling portion 141 formed on the inner surface of the finishing panel 140 is coupled to the first coupling portion 131 of the fixing member 130 fixed to the cast iron rope 110, the first coupling portion 131 And the second engaging portion 141 are engaged with each other to prevent the finish panel 140 from moving in the downward direction and to prevent it from moving in the forward and backward directions. Therefore, the finishing panel 140 is prevented from arbitrarily moving in the state where it is assembled to the cast iron rods 110 by the fixing member 130. [

The distance between the spacing of the plurality of fixing members 130 spaced apart from each other along the longitudinal direction of the column and the spacing between the second engaging portions 141 vertically spaced from the inner surface of the finishing panel 140, Is determined by the lateral pressure of the concrete calculated by referring to the cross-sectional area and the height of the column to be laid.

In addition, a plurality of finishing panels 140 are provided and are arranged continuously in the longitudinal direction of the column to close the side surface of the column.

At this time, the second engaging portion 141 disposed at the lower end of the upper finishing panel 140 among the pair of finishing panels 140 disposed adjacent to the longitudinal direction of the column is disposed at the upper end of the lower finishing panel 140 The second engaging portion 141 is formed to be able to cover the second engaging portion 141. The lower end of the upper finishing panel 140 is joined to the upper second engaging portion 141 of the lower finishing panel 140. The lower end of the upper finishing panel 140 is coupled to the lower end of the lower finishing panel 140, And is configured to be flush with the outer surface of the finishing panel 140.

Accordingly, since no step is generated between the outer surfaces of the pair of the finishing panels 140 arranged up and down, the quality of the finishing finish can be improved, and the connection portions of the pair of finishing panels 140, It is possible to prevent the deformation or breakage of the concrete due to the side pressure of the concrete.

According to this embodiment, in a state where the finishing panel 140 is assembled to the fixing member 130 fixed to the cast iron rope 110, the finishing panel 140 is assembled with the finishing panel 140 assembled So that the finishing panel 140 at the connection portion between the column and the beam can be easily separated from the field.

In addition, since the second coupling portion 141 protruding from the inner surface of the finishing panel 140 and fixed to the fixing member 130 is embedded in the concrete in the state where the reinforced concrete column structure is installed by pouring the concrete, (140) may be permanently fixed.

Next, a prefabricated structure for a reinforced concrete column according to a second embodiment of the present invention will be described.

FIG. 6 is a perspective view of a pre-assembly structure for a reinforced concrete column according to a second embodiment of the present invention, and FIG. 7 is an exploded perspective view of a pre-assembly structure for a reinforced concrete column according to a second embodiment of the present invention FIG. 8 is a plan view of a pre-assembly structure for a reinforced concrete column according to a second embodiment of the present invention, and FIG. 9 is a sectional view taken on line A-A 'of FIG.

As shown in the drawing, the reinforcing concrete column prefabricated structure according to the second embodiment of the present invention includes a plurality of cast iron rods 110 having the same length bundled with the steel bars 120 to form one unit assembly 100 and the unit assembly 100 is connected in the longitudinal direction to form a column frame, which is different from the above-described embodiment.

Specifically, brackets 160 are fixed to end portions of the unit assembly 100, respectively. The bracket 160 includes an abutting portion 161 corresponding to the sectional shape of the column and a side portion 162 extending from the outer peripheral surface of the abutting portion 161 in the longitudinal direction of the column to be fixed to the cast iron 110 And a plurality of fastening holes through which the fastening member 170 can pass are formed in the butt portion 161.

That is, the pair of unit assemblies 100 are connected to each other by the fastening members 170 that fasten the both side brackets 160 in a state where the brackets 160 formed at the ends of the pair of unit assemblies 100 are in contact with each other, Direction.

Particularly, since the unit assemblies 100 are moved in the field using a heavy equipment such as a crane, the more efficiently the unit assemblies 100 are assembled to the existing unit assembly 100, the more efficient the equipment utilization of the crane is.

Therefore, in the state where the unit assemblies 100 transported by the crane are stacked on the upper end of the unit assembly 100 installed in advance, the butt portions 161 provided on the end portions of the both side unit assemblies 100, (170).

Meanwhile, in a state where the pair of unit assemblies 100 are assembled as described above, a field worker may cause both ends of the connecting reinforcing bar 180 to overlap with a pair of adjacent reinforcing bars 110, So that the cast iron rods 110 of the pair of unit assemblies 100 are structurally connected.

That is, according to the present embodiment, when the unit assembly 100 is assembled immediately after moving the unit assembly 100 using a crane, the crane is not required to be used in the process of installing the connection assistant wire having a large number of operations, The efficiency of use of heavy equipment can be improved.

The scope of the present invention is not limited to the above-described embodiments, but may be embodied in various forms of embodiments within the scope of the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

100: unit assembly, 110: cast iron, 120:
130: fixing member, 131: first coupling portion, 132: cast iron root fixing portion,
133: connection portion, 140: finish panel, 141: second coupling portion,
150: corner member, 160: bracket, 161: abutting portion,
162: side portion, 170: fastening member, 180:

Claims (11)

In a prefabricated structure for a reinforced concrete column,
A cast iron muscle disposed in a longitudinal direction at a position corresponding to a corner of the column;
A band reinforcing bar disposed in a direction intersecting with the cast steel and binding the cast iron;
A first joint portion extending in a direction intersecting with the main iron core; a main iron core fixing portion formed in a ring shape surrounding the inside and the outside of the main iron core and disposed at both ends of the first coupling portion, A horizontal connection part extending in the horizontal direction from the main body iron fixing part so as to be horizontally spaced apart from the main iron core so as to connect the main iron core fixing part and the first coupling part, And a vertical connection part connecting the horizontal connection part and the first connection part is formed, the fixing part being disposed at a position corresponding to a side surface of the column, respectively; And
And a finishing panel having a plurality of second engaging portions formed on an inner surface thereof to engage with the first engaging portions, the plurality of engaging portions being continuously arranged in the longitudinal direction of the column to finish each side of the column,
Wherein the second engaging portion protrudes from at least an upper end and a lower end of the inner surface of the finishing panel and extends in a direction parallel to the first engaging portion,
Wherein the second engaging portion disposed at the lower end of the finishing panel overlaps with the second engaging portion disposed at the upper end of the adjoining finish panel to engage with the first engaging portion. delete delete delete delete delete The method according to claim 1,
And the fixing members disposed on the side surfaces of the adjacent pair of columns are staggered with respect to the longitudinal direction of the column. The method according to claim 1,
And a corner member surrounding a connection portion of a finishing panel disposed on side surfaces of the adjacent pillars, respectively. 9. The method according to any one of claims 1 and 7 to 8,
Wherein the steel reinforcing bars constitute a unit assembly and the pair of unit assemblies which are disposed adjacent to each other are fastened by a fastening member in a state where brackets formed at the respective end portions are in contact with each other. Assembly structure. 10. The method of claim 9,
Wherein the bracket includes a butt portion formed with a fastening hole into which the fastening member is inserted and disposed in the direction of the cross section of the column and a side portion extending from the butted portion in the longitudinal direction of the column to be fixed to the cast iron root. Prefabricated structures for columns. 11. The method of claim 10,
And a connecting reinforcing bar fixed to the pair of unit assemblies in such a manner as to be overlapped with the reinforcing bars of the pair of unit assemblies, both ends of which are adjacent to each other, and connecting the two reinforcing bars to each other.

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