KR20180016695A - Installation system and construction method of connecting beam unit - Google Patents

Abstract

The present invention relates to an installation system and a construction method of a connecting beam unit. The installation system of the connecting beam unit comprises: a first end joint steel piece joined to a first pillar joint steel piece of a first pillar member; a second end joint steel piece joined to a second pillar joint steel piece of a second pillar member; a lower support steel piece installed to be stationary to the first end joint steel piece and the second end joint steel piece to support a molding unit; an angle assembly installed across the first end joint steel piece and the second end joint steel piece; and the molding unit installed above the lower support steel piece and in which concrete is placed while the angle assembly is disposed therein. After the concrete is poured and cured, the lower support steel piece and the molding unit are removed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an installation system of a connection beam unit and a construction method of the connection beam unit,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an installation system of a connection beam unit capable of supporting a load of a construction process by itself and having improved workability.

It should be noted that the contents described in this section merely provide background information on the present invention and do not constitute the prior art.

Generally, a reinforced concrete structure is a structure type that combines reinforced concrete with excellent tensile resistance and ductility, concrete with excellent compression resistance, formability, refractory performance and economical efficiency.

However, since the reinforced concrete structure can not support the load until the concrete is hardened and used as the structure, it is accompanied with the construction work such as the concrete installation and the work installation for supporting the working load on the site, It is complicated and has an inconvenience that workload on the field increases.

In order to improve the workability of the reinforced concrete construction site, there have been attempts to fabricate the reinforcing steel factory, pre-assembled reinforcing bars, and factory construction, but there is no way to support the construction load with the stand- It is true.

Since the steel structure is a structure that resists the construction load and the ultimate load due to the member itself, it is generally advantageous to shorten the length of the building since it is possible to install the building without the installation of a tile and a formwork required in a reinforced concrete structure.

However, if the member end is designed as a continuous member with a fixed end, the bending moment acting on the end of the member is generally twice as large as the central portion, so that if the entire member is designed according to the load acting on the member end, There is room to be.

In addition, since the steel material is exposed to the outside, the fireproof performance may be a problem when a fire occurs. Therefore, it may be necessary to consider the fireproof coating, and there is a risk of corrosion in the steel material itself exposed to the outside. There is a problem.

Recently, a composite structure type, which is an intermediate form of reinforced concrete structure and steel structure, has been utilized.

For example, a composite beam is used in which a steel plate is formed into an upper open type, welded, and then filled with concrete, and the steel is used as a permanent formwork and a steel reinforced concrete structure.

This composite view is advantageous in that it can improve the structural performance by reducing the field work and combining the steel and concrete because the lower reinforcement and formwork installation can be omitted.

However, since the same section is applied to a single member, the amount of steel is increased compared to the reinforced concrete structure, and the end portion is U-shaped so that the configuration of the beam-column joint becomes complicated, and it is difficult to secure a work space to be moved by the upper open structure have.

Also, as with steel structures, a refractory sheath is needed for the exposed part of the steel.

Accordingly, the present invention proposes a method of securing economical efficiency by improving workability, securing site construction quality, and arranging reinforcement according to member load distribution to support construction loads such as rebar construction of reinforced concrete construction do.

As an aspect of the present invention, there is provided an installation system for a connection beam unit, which can improve the workability by omitting construction for supporting a load of a construction by supporting a load of a construction process by itself.

According to an aspect of the present invention, there is provided a method of manufacturing a semiconductor device, including: a first end joint metal member joined to a first pillar joint member of a first pillar member; A second end joining piece joined to the second post joining piece of the second post member; A lower support metal member mounted to the first end joint metal member and the second end joint metal member to support the form unit; An angle assembly mounted over the first end joint metal and the second end joint metal; And a molding unit installed on the lower support metal member and having concrete inserted therein in a state where the angle assembly is disposed therein. After the concrete is placed and cured, the lower support metal member and the molding unit, Wherein the connection unit is detached from the main body.

Preferably, the end joint metal member includes a lower flange on which the lower support metal is mounted; And a web member extending upward from the lower flange and fixed in a state of being inserted into the installation space of the angle assembly and the metal insert of the lower support metal.

Preferably, the angle assembly includes: a pair of upper angle members disposed on the upper side of the angle assembly and having a first installation space portion; A pair of lower angle members disposed below the angle assembly and having a second installation space; And a bending member installed to intersect between the first installation space of the upper angle member and the second installation space of the lower angle member.

Preferably, the lower support metal member is formed in the longitudinal direction and includes a pair of support angle members which are mounted on the end joint metal member; And a metal insertion unit formed between the pair of support angle members, wherein the one end of the end joining piece is fixed to the metal insertion unit, .

Preferably, the support angle member is provided with a U-shaped cross section so that one side is open, the lower support metal is spaced apart in the longitudinal direction of the support angle member, and is joined to the inner surface of the C- And an angle reinforcing plate for reinforcing the support angle member.

Preferably, the mounting bracket further comprises a support bracket detachably installed on the lower support metal to support the molding unit.

Preferably, the support bracket includes: a joint flange detachably installed on the lower support hardware; A mounting bar extending from the joining flange and supporting a lower mold of the molding unit; And a side support bar extending upward from the mounting bar and supporting a side mold of the molding unit.

Preferably, the reinforcing bar further comprises an assembled reinforcing bar network installed longitudinally in an inner space of the molding unit and installed in association with the angle assembly, wherein the assembled reinforcing bar network comprises: a longitudinal bars formed in the longitudinal direction; And a stroug which is installed to surround the cast iron and the angle assembly and has a plurality of slots spaced apart in the longitudinal direction.

Preferably, the installation system further comprises an intermediate beam installation part having an opening in a part of the longitudinal direction of the angle assembly, the intermediate beam installation part passing through the intermediate beam.

According to another aspect of the present invention, there is provided a method of manufacturing an end joint steel material, comprising the steps of: disposing an end joint steel piece and a second end joint steel piece apart from each other; A lower support metal material mounting step of mounting a lower support metal material to the first end joint metal material and the second end joint metal material; A molding unit mounting step of mounting the molding unit on the upper side of the lower supporting metal piece; An angle assembly mounting step of fixing the assembled angle assembly to the first end joint hardware and the second end joint hardware and installing the assembly in the mold unit; Placing the concrete in the molding unit and integrating the concrete with the angle assembly; And a removing step of removing the lower support metal piece and the molding unit.

Preferably, the method further includes the step of installing an assembled reinforcing bar net on the assembled angle assembly before the angle assembly mounting step, wherein the angle assembly is disposed on the upper side of the angle assembly and the first installation space is formed A pair of upper angle members; A pair of lower angle members disposed below the angle assembly and having a second installation space; And a bending member installed between the first installation space of the upper angle member and the second installation space of the lower angle member, wherein the assembled reinforcing bar network comprises: a main iron core formed in the longitudinal direction; And a stirrup which is installed to enclose the cast iron and the angle assembly and has a plurality of spaced apart portions in the longitudinal direction.

Preferably, the step of installing the molding unit further includes the step of installing an end molding unit surrounding the column joint hardware and the end joining hardware so as to be connected to the molding unit, wherein the molding unit and the end molding Concrete can be placed inside the unit.

According to an embodiment of the present invention as described above, the load of the construction process can be supported by itself and the workability can be improved.

According to an embodiment of the present invention, it is possible to omit or minimize installation of a trolley for supporting a formwork, thereby sufficiently securing a working space on the spot.

After the concrete is laid and cured, the lower support metal and the molding unit are configured to be removed and reused, thereby reducing the construction cost.

1 is a view showing an application example of an installation system of a connection beam unit of the present invention.
2 is a view showing an installation system of a connection beam unit according to an embodiment of the present invention.
3A is a cross-sectional view taken along the line AA 'in FIG.
3B is a cross-sectional view taken along line BB 'of FIG.
FIG. 4 is a view showing a connection beam unit installed by the installation system of the connection beam unit of FIG. 2. FIG.
5 is a front view of Fig.
Figure 6 is a bottom view of Figure 2;
FIG. 7 is a view showing the installation system of the connection beam unit of FIG. 2 viewed from the bottom; FIG.
FIG. 8 is a view showing a construction method of a connection beam unit according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. The shape and size of elements in the drawings may be exaggerated for clarity.

Hereinafter, an installation system 40 of a connection beam unit according to an embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIGS. 1 and 2, a connection beam unit installation system 40 according to an embodiment of the present invention includes a first end joint hardware 101, a second end joint hardware 103, an angle assembly 300 And a form unit 400, and may further include an assembled reinforcing bar 600 and an intermediate beam mounting unit 700. [

As shown in Fig. 1, a first end joining piece 101 joined to the first column joining piece 11 of the first column member 10 and a second end joining piece 101 joining the first column joining piece 11 of the first column member 10, (101) and the second end joining piece (103), and a second end joining piece (103) joined to the first end joining piece (101) An angle assembly 300 installed over the first end joint hardware 101 and the second end joint hardware 103 and the upper support metal 200 installed on the upper side of the lower support hardware 200 And a molding unit 400 in which the concrete is installed in a state where the angle assembly 300 is disposed inside.

At this time, as shown in FIG. 4, after the concrete is laid and cured, the lower support metal material 200 and the molding unit 400 can be removed.

1, the first end joint metal piece 101 is joined to the first column joint metal piece 11 of the first pillar member 10 and the second end joint metal piece 103 is joined to the first pillar joint metal piece 11 of the first pillar member 10, To the second column joint metal piece (11) of the base plate (10).

At this time, the column joint metal piece 11 and the end joint metal piece 100 can be bolted or welded with the reinforcing plate P being attached to the joining portion of the column joint metal piece 11 and the end joint metal piece 100 have.

As shown in FIG. 2, the lower support hardware 200 is a member that is mounted to the first end joint hardware 101 and the second end joint hardware 103 to support the form unit 400.

The lower support iron 200 may be configured to support the dough unit 400 while being mounted on the end joint hardware 100.

3, the lower support metal 200 can be fixed to the end joint metal 100 through a bolt member (not shown) in the end region.

3B, the lower support hardware 200 supports the lower side of the lower support hardware 200 while the form unit 400 is mounted on the upper side of the central area, An installation hardware D installed in connection with the angle assembly 300 or the assembled reinforcing bar 600 may be installed through the hardware insertion portion 230. [

It is possible to prevent sagging of the lower support metal 200 supporting the form unit 400 while the lower support metal 200 is connected to the angle assembly 300 or the assembled reinforcing bar 600 by the installation hardware D .

As shown in FIGS. 2 to 3B, the form unit 400 is mounted on the upper side of the lower support metal member 200 and can be detachably installed.

The mold unit 400 may have the angle assembly 300 installed therein and form a space for placing the concrete member C therein.

After the concrete is placed and cured, the lower support metal 200 and the molding unit 400 can be removed.

That is, the lower support iron 200 and the molding unit 400 may be detachably installed in the installation system 40 of the connection beam unit.

The concrete member C may be installed in the state where the angle assembly 300 is installed inside the molding unit 400 and the slabs may be installed in connection with the concrete member C as shown in FIGS. S can be installed.

After the concrete is poured into the molding unit 400 to integrate the angle assembly 300 and the concrete member C, the lower support hardware 200 and the molding unit 400 can be removed.

The end jointing hardware 100 and the lower support hardware 200 can be fastened by a bolt fastening method and the end jointing hardware 100 and the lower support hardware 200 can be fastened to bolt holes formed in both members, (Not shown) can be fastened.

The lower support iron 200 can be fastened to the web member 130 of the end joint metal 100 with a bolt member (not shown) while being mounted on the lower flange 110 of the end joint steel 100, After the concrete is laid and cured, the bolt member (not shown) is disassembled and can be removed from the end joint hardware 100.

4, the connecting beam unit 20 includes a first end joint metal piece 101, a second end joint metal piece 103, an angle assembly 300, and a concrete member C Lt; / RTI >

The connecting beam unit 20 includes a first end joining piece 101 joined to the first column joining piece 11 of the first column member 10 and a second column joining piece 101 of the second column member 10, An angle assembly 300 installed over the first end joint hardware 101 and the second end joint hardware 103 and a second end joint hardware 103 joined to the angle assembly And a concrete member C to be installed so as to surround the pillar 300.

The connection beam unit 20 is constructed by integrally assembling the molding unit 400 and the concrete molding unit (not shown) in the state where the end joint assembly 100 is primarily engaged with the angle assembly 300, The steel structure to which the angle assembly 300 and the end joint metal 100 are joined can be made of steel and concrete.

As shown in FIG. 3A, the lower support iron 200 may include a support angle member 210 and a metal insert 230.

The lower support metal member 200 is formed in the longitudinal direction and includes a pair of support angle members 210 that are fixed to the end joint metal member 100 and a pair of support angle members 210 that are formed between the pair of support angle members 210 And may be fixed in a state where one end of the end joint metal 100 is inserted into the metal insert 230. [

The web member 130 of the end joint hardware 100 may be fastened or welded by a bolt member (not shown) in a state where the web member 130 is inserted into the metal insert portion 230.

As shown in FIG. 4, the angle assembly 300 may include an upper angle member 310, a lower angle member 330, and a bending member 350.

The angle assembly 300 includes a pair of upper angle members 310 disposed on the upper side of the angle assembly 300 and having a first installation space portion and a pair of upper angle members 310 disposed on the lower side of the angle assembly 300, A pair of lower angle members 330 in which two installation space portions are formed and a second installation space portion of the upper angle member 310 and the second installation space portions of the lower angle member 330 A bending member 350 may be provided.

The bending member 350 may be installed in a diagonal direction so as to intersect between the first installation space of the upper angle member 310 and the second installation space of the lower angle member 330. [

As shown in FIGS. 2 and 3A, the support angle member 210 may have a U-shaped cross section so that one side is open.

The lower support metal member 200 is spaced apart in the longitudinal direction of the support angle member 210 and is joined to the inner surface of the C-shaped section of the support angle member 210 to support the support angle member 210 And may further include a reinforcing plate 250.

The supporting angle member 210 may have a U-shaped cross section so that one side thereof is open.

A plurality of angle-reinforcing plates 250 may be provided on the inner surface of the support angle member 210 at predetermined intervals.

The angle reinforcing plate 250 can reinforce the rigidity of the reduced support angle member 210 while forming the open portion of the support angle member 210.

As shown in FIGS. 2 and 7, at least a part of the angle-strengthening plate 250 may provide an installation space in which the support bracket 500 is installed in the lower support hardware 200.

The support bracket 500 is detachably attached to the lower support metal 200 while the joint flange 510 of the support bracket 500 is engaged with the angle reinforcement plate 250 by a bolt member (not shown) .

At least one angle reinforcing plate 250 is provided at an end of the supporting angle member 210 which is fixed to the end joint metal member 100 and at least three angle reinforcing plates 250 ) Can be continuously installed at intervals of 30 cm or less.

3A, the upper and lower angles 211 and 213 of the supporting angle member 210 and the supporting web 215 connecting the upper and lower angles 211 and 213 are connected to each other .

A plurality of bolt holes may be formed in the end region of the support web 215.

A bolt member (not shown) is inserted through the bolt hole of the support web 215 and the bolt hole of the web member 130 of the end joint metal 100 through the open area of the support angle member 210, The web member 130 of the hardware 100 and the support web 215 of the support angle member 210 can be fixed.

As shown in FIG. 4, the end joint metal 100 may include a lower flange 110 and a web member 130.

The end jointing hardware 100 includes a lower flange 110 on which the lower support hardware 200 is mounted and a lower flange 110 extending upward from the lower flange 110 and having an installation space for the angle assembly 300, And a web member 130 fixed in a state of being inserted into the metal insert 230 of the lower support metal 200.

The end joint hardware 100 may further include an upper flange 150 joined to the upper side of the web member 130.

7, the connection beam unit installation system 40 is detachably mounted to the lower support hardware 200 and is supported by the support bracket 500 to support the molding unit 400, As shown in FIG.

The joining of the end joint hardware 100 and the support bracket 500 can be fastened by a bolt fastening method.

After the concrete is laid and cured, the support bracket 500 can be removed from the lower support hardware 200.

The support bracket 500 may include a joint flange 510, a mounting bar 530, and a side support bar 550, as shown in FIGS. 3B and 7.

3B, the support bracket 500 includes a joint flange 510 detachably attached to the lower support metal member 200, and a connection flange 510 extending from the joint flange 510 to extend to the die unit 400 A side support bar 550 extending upward from the mounting bar 530 and supporting the side mold 430 of the molding unit 400; .

An inclined zigzag that connects and supports one side of the joining flange 510 and one side of the mounting bar 530 may be installed.

7, the joining flange 510 may be detachably joined to the angle reinforcing plate 250 of the lower support metal member 200. As shown in FIG.

7, the joining flanges 510 disposed closer to the first end joint metal 101 side are arranged to face each other than the angle reinforcement plate 250 and are fastened and fastened by a bolt member (not shown) The support bracket 500 can be detachably installed on the lower support hardware 200.

The joining flanges 510 provided close to the second end joint hardware 103 mutually abut with each other while being disposed on the rear side of the angle reinforcement plate 250 and are fastened and disassembled by a bolt member (not shown) (500) may be detachably installed on the lower support metal material (200).

The form unit 400 can be supported by the support bracket 500 fastened to the lower support metal member 200 by a bolt member (not shown), and after the concrete is placed and hardened, the bolt member (not shown) is disassembled The support bracket 500 can be removed from the lower support hardware 200.

2, the connecting beam unit installation system 40 is installed in the inner space of the form unit 400 in the longitudinal direction and includes an assembled reinforcing bar 600 installed in connection with the angle assembly 300, As shown in FIG.

3A, the assembled reinforcing bar 600 is installed so as to enclose the longitudinal steel rods 610, the main iron rods 610 and the angle assemblies 300, And a plurality of streaks 630 spaced apart from each other.

The stirrup 630 may be joined to the upper angle member 310 and the lower angle member 330 by welding.

As shown in FIGS. 4 and 5, the mounting system 40 of the connecting beam unit is provided in a state in which a part of the longitudinal direction of the angle assembly 300 is opened, And an intermediate beam mounting part 700 through which the intermediate beam 30 is installed.

Next, with reference to Fig. 8, a construction method of the open-end bonnet unit will be described in detail.

8, the step of installing the end joint hardware 100, the step of installing the lower support hardware 200, the step of installing the mold unit 400, the step of installing the angle assembly 300, Step, and removing step.

Although not shown, the step of arranging the end joint metal pieces may be performed by separating the first end joint metal piece 101 and the second end joint metal piece 103 from each other.

As shown in (3) of FIG. 8, the lower support metal fittings may be installed on the first end joint hardware 101 and the second end joint hardware 103 by mounting the lower support hardware 200.

As shown in FIG. 8 (4), in the step of installing the form unit, the form unit 400 may be mounted on the upper side of the lower support metal member 200.

As shown in FIG. 8 ⑤, in the step of installing the angle assembly, the assembled angle assembly 300 is fixed to the first end joint hardware 101 and the second end joint hardware 103, ). ≪ / RTI >

Although concrete pouring step is not shown, it is possible to pour concrete into the molding unit 400 and integrate the pouring unit with the angle assembly 300.

Next, the removing step may remove the lower support metal object 200 and the molding unit 400.

Assembling the angle assembly 300 before the step of installing the angle assembly 300 and installing the assembled reinforcing bar 600 on the angle assembly 300 as shown in FIGS. . ≪ / RTI >

8, the construction method may further include a step of installing the assembled reinforcing bar 600 on the angle assembly 300 assembled before the step of installing the angle assembly 300.

The angle assembly 300 includes a pair of upper angle members 310 disposed on the upper side of the angle assembly 300 and having a first installation space portion and a pair of upper angle members 310 disposed on the lower side of the angle assembly 300, A pair of lower angle members 330 in which a second installation space is formed and a second installation space of the upper angle member 310 and a second installation space of the lower angle member 330, Wherein the assembled reinforcing bar network 600 includes a reinforcing bar 610 formed in the longitudinal direction and the reinforcing bars 610 and the angle assembly 300 enclosed together And a plurality of streaks 630 spaced apart in the longitudinal direction.

Although not shown, the step of installing the molding unit 400 includes the steps of: forming the end molding unit (not shown) so as to surround the end portion bonding hardware 100 and the column connecting hardware 11 of the column member 10 and to be connected to the molding unit 400; (Not shown) for installing the end mold unit (not shown).

At this time, the concrete is installed in the form unit 400 and the end form unit (not shown) to integrate the angle assembly 300, the end joint hardware 100, and the column joint hardware 11 with the concrete member C .

It goes without saying that various embodiments of the connection beam unit installation system 40 having various embodiments described above can be applied to the construction method of the present invention.

Therefore, the construction of the first end joint hardware 101, the second end joint hardware 103, the angle assembly 300, the molding unit 400, and the like of the installation system 40 of the connection beam unit used in the construction method As described above, the configuration of the connection beam unit installation system 40 is the same as that of the connection beam unit, and a detailed description thereof is omitted in order to avoid redundancy.

Although the embodiments of the present invention have been described in detail, it is to be understood that the scope of the present invention is not limited to the above embodiments and various changes and modifications may be made without departing from the scope of the present invention. It will be obvious to those of ordinary skill in the art.

10: Column member 11: Column joint hardware
20: connecting beam unit 30: intermediate beam
40: Connection beam unit installation system
100: end joint steel material 110: bottom flange
130: web member 150: upper flange
101: first end jointing hardware 103: second end jointing hardware
200: lower support hardware 210: support angle member
211: top angle 213: bottom angle
215: support web 230: metal insert
250: Angle stiffener 300: Angle assembly
310: upper angle member 330: lower angle member
350: bending member 400: die unit
410: Lower mold 430: Side mold
500: support bracket 510: joint flange
530: mounting bar 550: side supporting bar
600: assembly reinforcing net 610: cast iron rope
630: Stirrup 700: Intermediate beam installation part
C: Concrete member D: Installation hardware
P: reinforcing plate S: slab

Claims (12)

A first end joining piece joined to the first post joining piece of the first post member;
A second end joining piece joined to the second post joining piece of the second post member;
A lower support metal member mounted to the first end joint metal member and the second end joint metal member to support the form unit;
An angle assembly mounted over the first end joint metal and the second end joint metal; And
And a molding unit installed on the lower support metal body and having concrete inserted therein in a state where the angle assembly is disposed therein,
Wherein the lower supporting hardware and the molding unit are detached after the concrete is poured and hardened.
The end jointing iron according to claim 1,
A lower flange on which the lower support metal is mounted; And
And a web member extending upward from the lower flange and fixed in a state of being inserted into the installation space of the angle assembly and the metal insert of the lower support metal.
The apparatus of claim 1, wherein the angle assembly comprises:
A pair of upper angle members disposed on the upper side of the angle assembly and having a first installation space portion;
A pair of lower angle members disposed below the angle assembly and having a second installation space; And
And a bending member installed to intersect between the first installation space of the upper angle member and the second installation space of the lower angle member.
[3] The apparatus of claim 1,
A pair of support angle members formed in the longitudinal direction and resting on the end joint metal member; And
And a metal insertion portion formed between the pair of support angle members,
Wherein the one end of the end joint metal is fixed to the metal insert in a state that one side of the end joint metal is inserted.
5. The method of claim 4,
Wherein the support angle member is provided with a U-shaped cross section so that one side thereof is opened,
The lower support metal member,
And an angle reinforcing plate which is spaced apart from the supporting angle member in the longitudinal direction and which is joined to an inner surface of a C-shaped section of the supporting angle member to reinforce the supporting angle member.
The method according to claim 1,
And a support bracket detachably installed on the lower support metal to support the molding unit.
[7] The apparatus of claim 6,
A joining flange detachably installed on the lower support metal;
A mounting bar extending from the joining flange and supporting a lower mold of the molding unit; And
And a side support bar extending upward from the mounting bar and supporting a side mold of the molding unit.
The method according to claim 1,
And an assembled reinforcing bar network installed longitudinally in an inner space of the molding unit and connected to the angle assembly,
In the assembled reinforcing bar network,
Cast iron rods formed in the longitudinal direction;
And a stroug which is installed to surround the cast iron and the angle assembly and has a plurality of slots spaced apart in the longitudinal direction.
The method according to claim 1,
Further comprising: an intermediate beam installation part having a part of the longitudinal direction of the angle assembly opened and having an intermediate beam passing therethrough.
A step of disposing the first end joint metal piece and the second end joint metal piece apart from each other;
A lower support metal material mounting step of mounting a lower support metal material to the first end joint metal material and the second end joint metal material;
A molding unit mounting step of mounting the molding unit on the upper side of the lower supporting metal piece;
An angle assembly mounting step of fixing the assembled angle assembly to the first end joint hardware and the second end joint hardware and installing the assembly in the mold unit;
Placing the concrete in the molding unit and integrating the concrete with the angle assembly; And
And a removing step of removing the lower support metal and the molding unit.
11. The method of claim 10,
And assembling the assembled reinforcing bar net to the assembled angled assembly before the step of installing the angle assembly,
The angle assembly includes:
A pair of upper angle members disposed on the upper side of the angle assembly and having a first installation space portion;
A pair of lower angle members disposed below the angle assembly and having a second installation space; And
And a bending member installed to intersect between the first installation space of the upper angle member and the second installation space of the lower angle member,
In the assembled reinforcing bar network,
Cast iron rods formed in the longitudinal direction;
Wherein the angle of rotation of the angle bracket is greater than the angle of rotation of the angle bracket.
The method according to claim 10,
Further comprising the step of installing an end mold unit surrounding the column joint member of the column member and the end joint metal member and connecting the end unit to the mold unit,
Wherein the concrete is laid inside the mold unit and the end molding unit.

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