KR20170107117A - the rigid connection structure between hybrid precast concrete column and precast concrete beam, the construction method of rigid connection structure using the same - Google Patents

the rigid connection structure between hybrid precast concrete column and precast concrete beam, the construction method of rigid connection structure using the same Download PDF

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Publication number
KR20170107117A
KR20170107117A KR1020160030209A KR20160030209A KR20170107117A KR 20170107117 A KR20170107117 A KR 20170107117A KR 1020160030209 A KR1020160030209 A KR 1020160030209A KR 20160030209 A KR20160030209 A KR 20160030209A KR 20170107117 A KR20170107117 A KR 20170107117A
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South Korea
Prior art keywords
column
concrete
plate
bracket
steel
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KR1020160030209A
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Korean (ko)
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KR101844343B1 (en
Inventor
홍원기
김선국
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경희대학교 산학협력단
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E04B1/21—Connections specially adapted therefor
    • E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • E04B1/40—
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements

Abstract

The present invention provides a steel frame-concrete hybrid rigid-jointing structure of a PC pillar, and a PC beam with a joint unit on which concrete is placed; and a construction method for a rigid-jointing structure using the same. The frame-concrete hybrid rigid-jointing structure of the PC pillar and the PC beam with the joint unit on which the concrete is placed, comprises: a lower PC pillar (100) including lower pillar concrete (110), a lower pillar reinforcing bar (120), and a lower pillar plate (130) connected to an upper end of the lower pillar reinforcing bar (120); an upper PC pillar (200) including upper pillar concrete (210), an upper pillar reinforcing bar (220), and an upper pillar plate (230) connected to a lower end of the upper pillar reinforcing bar (220); a pillar plate (PP) installed between the lower pillar plate (130) and the upper pillar plate (230); a beam mounting bracket (300) installed in an end of the upper pillar plate (230) protruding outside of the upper pillar concrete (210); and the PC beam (400) including beam concrete (410) and an upper beam reinforcing frame (490) protruding to the upper end of the beam concrete (410). A beam connection pillar reinforcing bar (270) protrudes from the outer surface of the upper pillar concrete (210), and an upper beam reinforcing bar (450) is connected to the beam connection pillar reinforcing bar (270).

Description

This paper describes a rigid connection structure between a steel column and concrete hybrid PC column and PC beam with joints placed thereon, and a rigid connection structure between the rigid connection structure and a rigid connection structure using the same}

The present invention relates to a steel-concrete hybrid PC column and a PC beam with a joining portion selectively installed using a PC beam mounting plate installed on a PC column to implement a moment bonding method by improving a joining portion between a column and a beam And a method of constructing a steel joint structure using the same.

In recent years, the use of PC (precast concrete) method has been increasing in order to secure workability and to save air.

Conventional PC method is mainly used for (1) simple installation of PC beams on PC columns, and (2) construction of PC columns and PC beams in one body.

(1) The method of simply mounting the PC beam on the PC column,

Although the air is somewhat reduced as one of the currently used methods, when a lateral force such as an earthquake acts, the column-to-beam connection is simply connected, and the moment can not be transmitted. Therefore, it is necessary to install a shear wall, brace, etc., which is a lateral reinforcement means, so that it is inevitable to increase the construction cost and air without meeting the merit of the PC method planned for air saving.

In addition, a PC mounted on a PC column may cause a safety accident due to the deviation of the column-to-beam connection. Therefore, the use of high - rise structures is limited due to the possibility of structural instability in column - beam connections.

The above-mentioned (2) method of integrally installing the PC column -PC beam member,

The use of concrete in the high-rise structure is limited due to the possibility of structural instability in the column-beam connection during the air delay and curing period due to concrete curing.

In order to solve the drawbacks of the conventional PC method,

Recently, researchers of the PC method of the moment joint method have been actively carried out, but it is difficult to use it widely, especially in high-rise structures due to various disadvantages such as complicated construction details, low economic efficiency and poor workability.

Therefore, the present inventor proposed a moment-resisting framework capable of eliminating the installation of the lateral shear reinforcement means such as an additional shear wall (formwork and wet construction method) or a brace while being dry type, and after the column- The frame construction of the precast framing can be carried out without piling, so that similar air and workability of the steel frame construction can be realized. Especially, unskilled workers have come to propose a PC construction method that can be done safely and quickly when only the manual is known.

[Patent Document 1] Korean Registered Patent No. 10-1289934 Post-tensioned compression bonded joint structure of precast SRC column and precast SRC beam, and method of constructing the jointed structure, 2013.07.25. [Patent Document 2] Korean Registered Patent No. 10-1369998 A steel frame integrated steel column for joining a steel column, and a method for constructing a composite column using the same, 2014.03.06

Disclosure of Invention Technical Problem [8] The present invention has been made in order to solve the above-mentioned problems of the related art,

We propose a rigid joint structure of steel - concrete hybrid PC columns and PC beams, and a method of constructing a rigid joint structure using the joints, which improves the joints of columns and beams and implements the moment - joint method by dry method.

The present invention is directed to a lower PC 130 including a column lower concrete 110, a lower column reinforcement 120, and a column lower plate 130 coupled to upper ends of the lower column reinforcement 120, A column 100;

An upper PC column 200 including a column upper concrete 210, a column upper reinforcement 220 and a column upper plate 230 coupled with a lower end of the column upper reinforcement 220;

A filler plate (PP) installed between the column lower plate (130) and the column upper plate (230);

A bracket bracket 300 installed at an end of the column top plate 230 protruded outward from the outer surface of the column top concrete 210;

A PC beam 400 including beam concrete 410 and a compensating section steel frame 490 protruding to an upper end of the beam concrete 410;

, ≪ / RTI >

The lower end of the beam concrete 410 is mounted on the beam bracket 300,

The compensating part steel frame 490 is fastened to a column bracket 290 protruding outside the outer surface of the columnar concrete 210,

The reinforcing portion steel frame 490 and the column bracket 290 are disposed together when the concrete (not shown) is poured, thereby realizing a strong bonding. The reinforcing steel frame 490 and the column bracket 290 are formed of a steel- A joint structure, and a method of constructing a steel joint structure using the same.

And a column center frame 250 in which a plate is joined to an upper portion of the column top concrete 210 and a lower portion thereof is joined to an upper portion of the column top plate 230. In the column center frame 250, The present invention provides a rigid joint structure of a steel-concrete hybrid PC column and a PC beam, and a method of constructing a rigid joint structure using the same, wherein one end of the column bracket 290 is joined.

And a reinforcing steel reinforcing bar 450 is joined to the reinforcing reinforcing steel reinforcing bars 450 on the outer surface of the column upper concrete 210. [ - It provides strong jointing structure of concrete hybrid PC column and PC beam, and a method of constructing strong jointing structure using it.

According to the present invention, a rigid joint structure of a steel-concrete hybrid PC column and a PC beam, in which a joint for implementing a moment joining method is improved by improving a joining portion between a column and a beam, and a construction method of a rigid joint structure using the joining structure to provide.

FIGS. 1 to 13 show a steel joint structure of a steel-concrete hybrid PC column and a PC beam with joints of the present invention installed, and a construction process of a steel joint joint structure using the same.
FIG. 14 is a view showing an embodiment of a PC column in a steel jointed structure of a steel-concrete hybrid PC column and a PC beam in which a joint part of the present invention is installed, and a method of constructing a steel jointed structure using the same.
FIGS. 15 to 16 show another embodiment of a steel joint assembly of a steel-concrete hybrid PC column and a PC beam with joints of the present invention, and a construction method of a steel joint assembly structure using the same.
FIGS. 17 to 18 show another embodiment of a construction method of a steel-concrete hybrid PC column and a PC beam having a joining portion of the present invention installed thereon, and a construction method of a steel-joint joining structure using the same.
19 is a view showing another embodiment of the construction process of the steel joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint part of the present invention is installed, and the construction method of the steel joint joint structure using the same.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 1 to 13 show a steel joint structure of a steel-concrete hybrid PC column and a PC beam with joints of the present invention installed, and a construction process of a steel joint joint structure using the same.

The rigid joint structure of steel-concrete hybrid PC columns and PC beams with joints of the present invention,

A lower PC column 100 including a column lower concrete 110, a column lower bar 120, and a column lower plate 130 coupled with the upper ends of the column lower bar 120;

An upper PC column 200 including a column upper concrete 210, a column upper reinforcement 220 and a column upper plate 230 coupled with a lower end of the column upper reinforcement 220;

A filler plate (PP) installed between the column lower plate (130) and the column upper plate (230);

A bracket bracket 300 installed at an end of the column top plate 230 protruded outward from the outer surface of the column top concrete 210;

A PC beam 400 including beam concrete 410 and a compensating section steel frame 490 protruding to an upper end of the beam concrete 410;

, ≪ / RTI >

The lower end of the beam concrete 410 is mounted on the beam bracket 300,

The compensating part steel frame 490 is fastened to a column bracket 290 protruding outside the outer surface of the columnar concrete 210,

The compensating section steel frame 490 and the column bracket 290 are poured together when concrete (not shown) is poured to realize a strong joint.

And although not shown,

The PC beam 400 has a beam lower reinforcing bar 420 protruding from its end,

The beam lower reinforcing bars 420 may be coupled to coupling reinforcing bars (not shown) protruding from the side of the column upper concrete 210 as couplers.

Specifically, as shown in FIG. 2,

A column center frame 250 having a plate joined to an upper portion of the column top concrete 210 and a lower portion joined to an upper portion of the column top plate 230,

And one end of the column bracket 290 is connected to the column center frame 250.

A method of constructing a steel joint-bonded structure using a steel-joint hybrid structure of a steel-concrete hybrid PC column and a PC beam in which a joint of the present invention is installed,

The rigid joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint is installed is used,

(1) a PC column coupling step of coupling the upper PC column 200 to the upper part of the lower PC column 100;

(2) a step of recovering the PC beam 400 on one surface of the upper PC column 200;

(3) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 and the compensating section steel frame 490 is projected outward from the outer surface of the columnar concrete 210 A PC beam joining step of fastening the bracket to the column bracket 290;

(4) repeating the steps (2) to (3) on the other surface of the upper PC column 200 to install a plurality of PC beams 400;

(5) installing a lower end plate (500) in the bracket bracket (300) so as to close the space between the end of the beam concrete (410) and the outer surface of the column upper concrete (210);

(6) Concrete pouring step for pouring concrete (not shown);

(7) disassembling the secondary plate 500 during the curing or curing of the concrete (not shown);

And a control unit.

The lower end plate 500 is fixed by sealing (S) treatment as shown in FIG.

The rigid joint structure of the steel-concrete hybrid PC column and the PC beam with the joining portion of the present invention installed,

A beam connecting column reinforcing bar 270 protrudes on an outer surface of the column upper concrete 210 so that the compensating reinforcing bar 450 is reinforced to the beam connecting column reinforcing bar 270.

A method of constructing a steel joint-bonded structure using a steel-joint hybrid structure of a steel-concrete hybrid PC column and a PC beam in which a joint of the present invention is installed,

The rigid joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint is installed is used,

(1) a PC column coupling step of coupling the upper PC column 200 to the upper part of the lower PC column 100;

(2) a step of recovering the PC beam 400 on one surface of the upper PC column 200;

(3) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 and the compensating section steel frame 490 is projected outward from the outer surface of the columnar concrete 210 A PC beam joining step of fastening the reinforcing reinforcing bars 450 to the beam reinforcing bars 270 by fastening the reinforcing reinforcing bars 450 to the column brackets 290;

(4) repeating the steps (2) to (3) on the other surface of the upper PC column 200 to install a plurality of PC beams 400;

(5) installing a lower end plate (500) in the bracket bracket (300) so as to close the space between the end of the beam concrete (410) and the outer surface of the column upper concrete (210);

(6) Concrete pouring step for pouring concrete (not shown);

(7) disassembling the secondary plate 500 during the curing or curing of the concrete (not shown);

And a control unit.

As shown in FIG. 2, the steel-concrete hybrid PC column and the PC beam with the joining portion of the present invention installed thereon,

The lower portion of the columnar reinforcing bar 220 is linearly protruded to the lower portion of the column upper plate 230 and coupled with a nut,

Since the upper portion of the columnar lower reinforcing bar 120 is bent and the upper end thereof is protruded to the upper portion of the column lower plate 130,

And the nut coupling portions projected upward are inserted into the holes of the filler plate PP without interfering with each other.

An inner bolt (IR) protrudes above the column lower plate 130,

Since the inner bolt (IR) passes through the filler plate (PP) and is fastened to the column top plate (230)

 The inner bolt IR prevents the contact surface between the column top plate 230, the filler plate PP and the column bottom plate 130 from being separated from each other, thereby transmitting the vertical and horizontal loads, The displacement generated in the column top plate 230, the filler plate PP, and the column bottom plate 130 is reduced.

Although not shown, the steel joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint part of the present invention is installed is formed by forming an opening (not shown) on the lower side of the columnar concrete 210,

After a nut is fastened to the upper end of the inner bolt (IR) through the opening (not shown)

And grouting (G) the opening (not shown).

A method of constructing a steel joint-bonded structure using a steel-joint hybrid structure of a steel-concrete hybrid PC column and a PC beam in which a joint of the present invention is installed,

The rigid joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint is installed is used,

(1) a PC column coupling step of coupling the upper PC column 200 to the upper part of the lower PC column 100;

(2) a step of recovering the PC beam 400 on one surface of the upper PC column 200;

(3) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 and the compensating section steel frame 490 is projected outward from the outer surface of the columnar concrete 210 A PC beam joining step of fastening the reinforcing reinforcing bars 450 to the beam reinforcing bars 270 by fastening the reinforcing reinforcing bars 450 to the column brackets 290;

(4) a grouting step of grouting (G) the opening (O) after fastening a nut to the upper end of the inner bolt (IR) through the opening (O);

(5) repeating the steps (2) to (4) on the other surface of the upper PC column 200 to install a plurality of PC beams 400;

(6) installing a lower end plate (500) in the bracket bracket (300) so as to close between the end of the beam concrete (410) and the outer surface of the column top concrete (210);

(7) Concrete pouring step for pouring concrete (not shown);

(8) disassembly of the lower end plate 500 during curing or curing of the concrete (not shown);

And a control unit.

The present invention, as shown in FIG. 6,

The PC beam 400,

A reinforcing plate 430 is coupled to the lower end of the beam concrete 410,

The beam lower reinforcing bars 420 are joined to the reinforcing plate 430,

And the reinforcing plate 430 prevents breakage of the beam 410 by contact with the beam bracket 300.

FIG. 14 is a view showing an embodiment of a PC column in a steel jointed structure of a steel-concrete hybrid PC column and a PC beam in which a joint part of the present invention is installed, and a method of constructing a steel jointed structure using the same.

The rigid joint structure of the steel-concrete hybrid PC column and the PC beam with the joining portion of the present invention installed is provided with a column lower steel frame 152 from the upper end to the lower end of the lower PC column 100,

The column center frame 250; Instead, an upper column steel frame 252 is installed from the upper end to the lower end of the upper PC column 200,

And one end of the column bracket 290 is joined to the column top steel frame 252.

FIGS. 15 to 16 show another embodiment of a steel joint assembly of a steel-concrete hybrid PC column and a PC beam with joints of the present invention, and a construction method of a steel joint assembly structure using the same.

The rigid joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint part of the present invention is installed is composed of a PC column 100 'comprising a column concrete 110' and a columnar bar 120 ';

A bracket bracket 300 'installed so as to protrude from the outer surface of the column concrete 110';

 A PC beam 400 including beam concrete 410 and a compensating section steel frame 490 protruding to an upper end of the beam concrete 410;

, ≪ / RTI >

The lower end of the beam concrete 410 is mounted on the beam bracket 300 '

The compensating part steel frame 490 is fastened to a column bracket 290 protruding from the outer surface of the column concrete 110 '

The compensating section steel frame 490 and the column bracket 290 are poured together when concrete (not shown) is poured to realize a strong joint.

And a column center frame 250 having an upper plate joined to the inside of the column concrete 110 '

And one end of the column bracket 290 is connected to the column center frame 250.

A method of constructing a steel joint-bonded structure using a steel-joint hybrid structure of a steel-concrete hybrid PC column and a PC beam in which a joint of the present invention is installed,

The rigid joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint is installed is used,

(1) a step of recovering the PC beam 400 on one side of the PC column 100 ';

(2) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 ', and the compensating section steel frame 490 is moved out of the outer surface of the column concrete 110' A PC beam joining step for joining the projected column bracket 290;

(3) a PC beam installation step of repeating the steps (1) and (2) on the other surface of the PC column 100 'to install a plurality of PC beams 400;

(4) installing a second end plate (500) on the beam bracket (300 ') to close the space between the end of the beam concrete (410) and the outer surface of the column concrete (110');

(5) Concrete pouring step for pouring concrete (not shown);

(6) a step of dismounting the lower end plate 500 during the curing or curing of the concrete (not shown);

And a control unit.

In addition, the steel joint structure of the steel-concrete hybrid PC column and the PC beam with the joining portion of the present invention installed therein is formed such that a beam connecting column reinforcing bar 270 protrudes from the outer surface of the column concrete 110 ' And the compensating reinforcing bars 450 are joined to the reinforcing bars.

A method of constructing a steel joint-bonded structure using a steel-joint hybrid structure of a steel-concrete hybrid PC column and a PC beam in which a joint of the present invention is installed,

The rigid joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint is installed is used,

(1) a step of recovering the PC beam 400 on one side of the PC column 100 ';

(2) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 ', and the compensating section steel frame 490 is moved out of the outer surface of the column concrete 110' A PC beam joining step of fastening the reinforcing reinforcing bars 450 to the beam reinforcing bars 270 by fastening them to the protruded column brackets 290;

(3) a PC beam installation step of repeating the steps (1) and (2) on the other surface of the PC column 100 'to install a plurality of PC beams 400;

(4) installing a second end plate (500) on the beam bracket (300 ') to close the space between the end of the beam concrete (410) and the outer surface of the column concrete (110');

(5) Concrete pouring step for pouring concrete (not shown);

(6) a step of dismounting the lower end plate 500 during the curing or curing of the concrete (not shown);

And a control unit.

FIGS. 17 to 18 show another embodiment of a construction method of a steel-concrete hybrid PC column and a PC beam having a joining portion of the present invention installed thereon, and a construction method of a steel-joint joining structure using the same.

The rigid joint structure of the steel-concrete hybrid PC column and the PC beam with the joining portion of the present invention installed is the same as the column center steel frame 250; Instead, a column steel frame 252 'is installed from the top to the bottom of the PC column 100'

And one end of the column bracket 290 is joined to the column steel frame 252 '.

A method of constructing a steel joint-bonded structure using a steel-joint hybrid structure of a steel-concrete hybrid PC column and a PC beam in which a joint of the present invention is installed,

The rigid joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint is installed is used,

(1) a step of recovering the PC beam 400 on one side of the PC column 100 ';

(2) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 ', and the compensating section steel frame 490 is moved out of the outer surface of the column concrete 110' A PC beam joining step for joining the projected column bracket 290;

(3) a PC beam installation step of repeating the steps (1) and (2) on the other surface of the PC column 100 'to install a plurality of PC beams 400;

(4) installing a second end plate (500) on the beam bracket (300 ') to close the space between the end of the beam concrete (410) and the outer surface of the column concrete (110');

(5) Concrete pouring step for pouring concrete (not shown);

(6) a step of dismounting the lower end plate 500 during the curing or curing of the concrete (not shown);

And a control unit.

Although not shown, in the steel joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint of the present invention is installed, the beam bracket 300 is omitted, and the lower end of the beam concrete 410 And is mounted on the end of the column top plate 230.

A method of constructing a steel joint-bonded structure using a steel-joint hybrid structure of a steel-concrete hybrid PC column and a PC beam in which a joint of the present invention is installed,

The rigid joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint is installed is used,

(1) a PC column coupling step of coupling the upper PC column 200 to the upper part of the lower PC column 100;

(2) a step of recovering the PC beam 400 on one surface of the upper PC column 200;

(3) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is mounted on the end of the column upper plate 230, and the compensating part steel frame 490 is moved outside the column top concrete 210 A PC beam joining step for joining the projected column bracket 290;

(4) repeating the steps (2) to (3) on the other surface of the upper PC column 200 to install a plurality of PC beams 400;

(5) installing a lower end plate (500) in the bracket bracket (300) so as to close the space between the end of the beam concrete (410) and the outer surface of the column upper concrete (210);

(6) Concrete pouring step for pouring concrete (not shown);

(7) disassembling the secondary plate 500 during the curing or curing of the concrete (not shown);

And a control unit.

19 is a view showing another embodiment of the construction process of the steel joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint part of the present invention is installed, and the construction method of the steel joint joint structure using the same.

The steel joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint part of the present invention is installed has a structure in which a cobble 300 '' protruding from the outer surface of the column concrete 110 'is used instead of the beam bracket 300' Formed,

The lower end of the beam concrete 410 is mounted on the upper portion of the coble 300 '.

A method of constructing a steel joint-bonded structure using a steel-joint hybrid structure of a steel-concrete hybrid PC column and a PC beam in which a joint of the present invention is installed,

The rigid joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint is installed is used,

(1) a step of recovering the PC beam 400 on one side of the PC column 100 ';

(2) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is mounted on the upper part of the coble 300 ', and the compensating part steel frame 490 is moved out of the outer surface of the column concrete 110' A PC beam joining step for joining the projected column bracket 290;

(3) a PC beam installation step of repeating the steps (1) and (2) on the other surface of the PC column 100 'to install a plurality of PC beams 400;

(4) installing a second end plate (500) on the beam bracket (300 ') to close the space between the end of the beam concrete (410) and the outer surface of the column concrete (110');

(5) Concrete pouring step for pouring concrete (not shown);

(6) a step of dismounting the lower end plate 500 during the curing or curing of the concrete (not shown);

And a control unit.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

It is therefore intended that the appended claims cover such modifications and variations as fall within the true scope of the invention.

PP: filler plate
IR: internal bolt
G: Grouting
100: Lower PC column
100`: PC column
110: Column lower concrete
110`: column concrete
120: Column lower bar
120 `: pillar rebar
130: column bottom plate
152: column lower steel frame
200: Top PC column
210: Columnar concrete
220: Upper column bracing
230: column top plate
250: column center steel frame
252: Upper column steel frame
252 `: column steel frame
270: beam connection pillar
290: Column bracket
300, 300`: Bracket bracket
300``: Korb
400: PC Bo
410: beam concrete
420: Beam bottom reinforcement
430: reinforcing plate
450: Reinforcing section reinforcing bar
490: Compensation department steel

Claims (38)

A lower PC column 100 including a column lower concrete 110, a column lower bar 120, and a column lower plate 130 coupled with the upper ends of the column lower bar 120;
An upper PC column 200 including a column upper concrete 210, a column upper reinforcement 220 and a column upper plate 230 coupled with a lower end of the column upper reinforcement 220;
A filler plate (PP) installed between the column lower plate (130) and the column upper plate (230);
A bracket bracket 300 installed at an end of the column top plate 230 protruded outward from the outer surface of the column top concrete 210;
A PC beam 400 including beam concrete 410 and a compensating section steel frame 490 protruding to an upper end of the beam concrete 410;
, ≪ / RTI >
The lower end of the beam concrete 410 is mounted on the beam bracket 300,
The compensating part steel frame 490 is fastened to a column bracket 290 protruding outside the outer surface of the columnar concrete 210,
The reinforcing portion steel frame 490 and the column bracket 290 are disposed together when the concrete (not shown) is poured, thereby realizing a strong bonding. The reinforcing steel frame 490 and the column bracket 290 are formed of a steel- Bond structure.
The method of claim 1,
A column center frame 250 having a plate joined to an upper portion of the column top concrete 210 and a lower portion joined to an upper portion of the column top plate 230,
Wherein a column bracket (290) is coupled to the column center frame (250), and one end of the column bracket (290) is joined to the column center frame frame (250).
3. The method according to claim 1 or 2,
A beam connecting column reinforcing bar 270 protrudes on the outer surface of the column top concrete 210,
And the compensating reinforcing bars 450 are joined to the reinforcing reinforcing reinforcing bars 450 by the reinforcing reinforcing bars 450. The reinforced reinforcing bars 450 are joined to the reinforcing reinforcing bars 450 by reinforcing bars.
3. The method according to claim 1 or 2,
The lower portion of the columnar reinforcing bar 220 is linearly protruded to the lower portion of the column upper plate 230 and coupled with a nut,
Since the upper portion of the columnar lower reinforcing bar 120 is bent and the upper end thereof is protruded to the upper portion of the column lower plate 130,
Wherein the nut joint portions protruded upward are inserted into the holes of the filler plate (PP) without interfering with each other. The rigid joint structure of the steel frame-concrete hybrid column and the PC beam with the joint attached.
4. The method of claim 3,
The lower portion of the columnar reinforcing bar 220 is linearly protruded to the lower portion of the column upper plate 230 and coupled with a nut,
Since the upper portion of the columnar lower reinforcing bar 120 is bent and the upper end thereof is protruded to the upper portion of the column lower plate 130,
Wherein the nut joint portions protruded upward are inserted into the holes of the filler plate (PP) without interfering with each other. The rigid joint structure of the steel frame-concrete hybrid column and the PC beam with the joint attached.
3. The method according to claim 1 or 2,
An inner bolt (IR) protrudes above the column lower plate 130,
Since the inner bolt (IR) passes through the filler plate (PP) and is fastened to the column top plate (230)
The inner bolt IR prevents the contact surface between the column top plate 230, the filler plate PP and the column bottom plate 130 from being separated from each other, thereby transmitting the vertical and horizontal loads, And the column bottom plate (130) is reduced by the elastic force of the columnar plate (230), the column top plate (230), the filler plate (PP) Bond structure.
4. The method of claim 3,
An inner bolt (IR) protrudes above the column lower plate 130,
Since the inner bolt (IR) passes through the filler plate (PP) and is fastened to the column top plate (230)
The inner bolt IR prevents the contact surface between the column top plate 230, the filler plate PP and the column bottom plate 130 from being separated from each other, thereby transmitting the vertical and horizontal loads, And the column bottom plate (130) is reduced by the elastic force of the columnar plate (230), the column top plate (230), the filler plate (PP) Bond structure.
5. The method of claim 4,
An inner bolt (IR) protrudes above the column lower plate 130,
Since the inner bolt (IR) passes through the filler plate (PP) and is fastened to the column top plate (230)
The inner bolt IR prevents the contact surface between the column top plate 230, the filler plate PP and the column bottom plate 130 from being separated from each other, thereby transmitting the vertical and horizontal loads, And the column bottom plate (130) is reduced by the elastic force of the columnar plate (230), the column top plate (230), the filler plate (PP) Bond structure.
The method of claim 5,
An inner bolt (IR) protrudes above the column lower plate 130,
Since the inner bolt (IR) passes through the filler plate (PP) and is fastened to the column top plate (230)
The inner bolt IR prevents the contact surface between the column top plate 230, the filler plate PP and the column bottom plate 130 from being separated from each other, thereby transmitting the vertical and horizontal loads, And the column bottom plate (130) is reduced by the elastic force of the columnar plate (230), the column top plate (230), the filler plate (PP) Bond structure.
The method of claim 6,
An opening (not shown) is formed on a lower side surface of the columnar concrete 210,
After a nut is fastened to the upper end of the inner bolt (IR) through the opening (not shown)
And the opening (not shown) is grouted (G). The steel joining structure of the steel-concrete hybrid PC column and the PC beam with the joining portion placed thereon.
8. The method of claim 7,
An opening (not shown) is formed on a lower side surface of the columnar concrete 210,
After a nut is fastened to the upper end of the inner bolt (IR) through the opening (not shown)
And the opening (not shown) is grouted (G). The steel joining structure of the steel-concrete hybrid PC column and the PC beam with the joining portion placed thereon.
9. The method of claim 8,
An opening (not shown) is formed on a lower side surface of the columnar concrete 210,
After a nut is fastened to the upper end of the inner bolt (IR) through the opening (not shown)
And the opening (not shown) is grouted (G). The steel joining structure of the steel-concrete hybrid PC column and the PC beam with the joining portion placed thereon.
The method of claim 9,
An opening (not shown) is formed on a lower side surface of the columnar concrete 210,
After a nut is fastened to the upper end of the inner bolt (IR) through the opening (not shown)
And the opening (not shown) is grouted (G). The steel joining structure of the steel-concrete hybrid PC column and the PC beam with the joining portion placed thereon.
3. The method according to claim 1 or 2,
The PC beam 400,
A reinforcing plate 430 is coupled to the lower end of the beam concrete 410,
The beam lower reinforcing bars 420 are joined to the reinforcing plate 430,
And the reinforcing plate (430) prevents breakage of the beam concrete (410) due to contact with the beam bracket (300). The rigid joining combination of the steel column and concrete hybrid PC column and the PC beam rescue.
4. The method of claim 3,
The PC beam 400,
A reinforcing plate 430 is coupled to the lower end of the beam concrete 410,
The beam lower reinforcing bars 420 are joined to the reinforcing plate 430,
And the reinforcing plate (430) prevents breakage of the beam concrete (410) due to contact with the beam bracket (300). The rigid joining combination of the steel column and concrete hybrid PC column and the PC beam rescue.
5. The method of claim 4,
The PC beam 400,
A reinforcing plate 430 is coupled to the lower end of the beam concrete 410,
The beam lower reinforcing bars 420 are joined to the reinforcing plate 430,
And the reinforcing plate (430) prevents breakage of the beam concrete (410) due to contact with the beam bracket (300). The rigid joining combination of the steel column and concrete hybrid PC column and the PC beam rescue.
The method of claim 5,
The PC beam 400,
A reinforcing plate 430 is coupled to the lower end of the beam concrete 410,
The beam lower reinforcing bars 420 are joined to the reinforcing plate 430,
And the reinforcing plate (430) prevents breakage of the beam concrete (410) due to contact with the beam bracket (300). The rigid joining combination of the steel column and concrete hybrid PC column and the PC beam rescue.
A rigid joint structure of a steel-concrete hybrid PC column and a PC beam in which the joint of claim 1 or 2 is installed is used,
(1) a PC column coupling step of coupling the upper PC column 200 to the upper part of the lower PC column 100;
(2) a step of recovering the PC beam 400 on one surface of the upper PC column 200;
(3) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 and the compensating section steel frame 490 is projected outward from the outer surface of the columnar concrete 210 A PC beam joining step of fastening the bracket to the column bracket 290;
(4) repeating the steps (2) to (3) on the other surface of the upper PC column 200 to install a plurality of PC beams 400;
(5) installing a lower end plate (500) in the bracket bracket (300) so as to close the space between the end of the beam concrete (410) and the outer surface of the column upper concrete (210);
(6) Concrete pouring step for pouring concrete (not shown);
(7) disassembling the secondary plate 500 during the curing or curing of the concrete (not shown);
The method of claim 1, wherein the reinforced concrete pillar and the reinforced concrete pavement of the steel frame are made of steel.
The rigid joint structure of the steel-concrete hybrid PC column and the PC beam in which the joint of claim 3 is installed is used,
(1) a PC column coupling step of coupling the upper PC column 200 to the upper part of the lower PC column 100;
(2) a step of recovering the PC beam 400 on one surface of the upper PC column 200;
(3) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 and the compensating section steel frame 490 is projected outward from the outer surface of the columnar concrete 210 A PC beam joining step of fastening the reinforcing reinforcing bars 450 to the beam reinforcing bars 270 by fastening the reinforcing reinforcing bars 450 to the column brackets 290;
(4) repeating the steps (2) to (3) on the other surface of the upper PC column 200 to install a plurality of PC beams 400;
(5) installing a lower end plate (500) in the bracket bracket (300) so as to close the space between the end of the beam concrete (410) and the outer surface of the column upper concrete (210);
(6) Concrete pouring step for pouring concrete (not shown);
(7) disassembling the secondary plate 500 during the curing or curing of the concrete (not shown);
The method of claim 1, wherein the reinforced concrete pillar and the reinforced concrete pavement of the steel frame are made of steel.
A rigid joint structure of a steel-concrete hybrid PC column and a PC beam in which the joint of claim 10 is installed is used,
(1) a PC column coupling step of coupling the upper PC column 200 to the upper part of the lower PC column 100;
(2) a step of recovering the PC beam 400 on one surface of the upper PC column 200;
(3) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 and the compensating section steel frame 490 is projected outward from the outer surface of the columnar concrete 210 A PC beam joining step of fastening the reinforcing reinforcing bars 450 to the beam reinforcing bars 270 by fastening the reinforcing reinforcing bars 450 to the column brackets 290;
(4) a grouting step of grouting (G) the opening (not shown) after fastening a nut to the upper end of the inner bolt (IR) through the opening (not shown);
(5) repeating the steps (2) to (4) on the other surface of the upper PC column 200 to install a plurality of PC beams 400;
(6) installing a lower end plate (500) in the bracket bracket (300) so as to close between the end of the beam concrete (410) and the outer surface of the column top concrete (210);
(7) Concrete pouring step for pouring concrete (not shown);
(8) disassembly of the lower end plate 500 during curing or curing of the concrete (not shown);
The method of claim 1, wherein the reinforced concrete pillar and the reinforced concrete pavement of the steel frame are made of steel.
The rigid joint structure of the steel-concrete hybrid PC column and the PC beam with the joint of the eleventh claim is used,
(1) a PC column coupling step of coupling the upper PC column 200 to the upper part of the lower PC column 100;
(2) a step of recovering the PC beam 400 on one surface of the upper PC column 200;
(3) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 and the compensating section steel frame 490 is projected outward from the outer surface of the columnar concrete 210 A PC beam joining step of fastening the reinforcing reinforcing bars 450 to the beam reinforcing bars 270 by fastening the reinforcing reinforcing bars 450 to the column brackets 290;
(4) a grouting step of grouting (G) the opening (not shown) after fastening a nut to the upper end of the inner bolt (IR) through the opening (not shown);
(5) repeating the steps (2) to (4) on the other surface of the upper PC column 200 to install a plurality of PC beams 400;
(6) installing a lower end plate (500) in the bracket bracket (300) so as to close between the end of the beam concrete (410) and the outer surface of the column top concrete (210);
(7) Concrete pouring step for pouring concrete (not shown);
(8) disassembly of the lower end plate 500 during curing or curing of the concrete (not shown);
The method of claim 1, wherein the reinforced concrete pillar and the reinforced concrete pavement of the steel frame are made of steel.
The rigid joint structure of the steel-concrete hybrid PC column and the PC beam with the joint of the claim 12 is used,
(1) a PC column coupling step of coupling the upper PC column 200 to the upper part of the lower PC column 100;
(2) a step of recovering the PC beam 400 on one surface of the upper PC column 200;
(3) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 and the compensating section steel frame 490 is projected outward from the outer surface of the columnar concrete 210 A PC beam joining step of fastening the reinforcing reinforcing bars 450 to the beam reinforcing bars 270 by fastening the reinforcing reinforcing bars 450 to the column brackets 290;
(4) a grouting step of grouting (G) the opening (not shown) after fastening a nut to the upper end of the inner bolt (IR) through the opening (not shown);
(5) repeating the steps (2) to (4) on the other surface of the upper PC column 200 to install a plurality of PC beams 400;
(6) installing a lower end plate (500) in the bracket bracket (300) so as to close between the end of the beam concrete (410) and the outer surface of the column top concrete (210);
(7) Concrete pouring step for pouring concrete (not shown);
(8) disassembly of the lower end plate 500 during curing or curing of the concrete (not shown);
The method of claim 1, wherein the reinforced concrete pillar and the reinforced concrete pavement of the steel frame are made of steel.
A rigid joint structure of a steel-concrete hybrid PC column and a PC beam in which the joint of claim 13 is installed is used,
(1) a PC column coupling step of coupling the upper PC column 200 to the upper part of the lower PC column 100;
(2) a step of recovering the PC beam 400 on one surface of the upper PC column 200;
(3) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 and the compensating section steel frame 490 is projected outward from the outer surface of the columnar concrete 210 A PC beam joining step of fastening the reinforcing reinforcing bars 450 to the beam reinforcing bars 270 by fastening the reinforcing reinforcing bars 450 to the column brackets 290;
(4) a grouting step of grouting (G) the opening (not shown) after fastening a nut to the upper end of the inner bolt (IR) through the opening (not shown);
(5) repeating the steps (2) to (4) on the other surface of the upper PC column 200 to install a plurality of PC beams 400;
(6) installing a lower end plate (500) in the bracket bracket (300) so as to close between the end of the beam concrete (410) and the outer surface of the column top concrete (210);
(7) Concrete pouring step for pouring concrete (not shown);
(8) disassembly of the lower end plate 500 during curing or curing of the concrete (not shown);
The method of claim 1, wherein the reinforced concrete pillar and the reinforced concrete pavement of the steel frame are made of steel.
3. The method of claim 2,
A column lower steel frame 152 is installed from the upper end to the lower end of the lower PC column 100,
The column center frame 250; Instead, an upper column steel frame 252 is installed from the upper end to the lower end of the upper PC column 200,
And the one end of the column bracket (290) is joined to the columnar steel frame (252). The rigid joint structure of the steel frame-concrete hybrid column and the PC beam with the joining portion inserted.
A PC column 100 'including a column concrete 110' and a columnar bar 120 ';
A bracket bracket 300 'installed so as to protrude from the outer surface of the column concrete 110';
A PC beam 400 including beam concrete 410 and a compensating section steel frame 490 protruding to an upper end of the beam concrete 410;
, ≪ / RTI >
The lower end of the beam concrete 410 is mounted on the beam bracket 300 '
The compensating part steel frame 490 is fastened to a column bracket 290 protruding from the outer surface of the column concrete 110 '
The reinforcing portion steel frame 490 and the column bracket 290 are disposed together when the concrete (not shown) is poured, thereby realizing a strong bonding. The reinforcing steel frame 490 and the column bracket 290 are formed of a steel- Bond structure.
26. The method of claim 25,
A column center steel frame 250 having a plate joined to the upper portion of the column concrete 110 '
Wherein a column bracket (290) is coupled to the column center frame (250), and one end of the column bracket (290) is joined to the column center frame frame (250).
26. The method of claim 25 or 26,
On the outer surface of the column concrete 110 ', a beam connecting column reinforcing bar 270 is projected,
And the compensating reinforcing bars 450 are joined to the reinforcing reinforcing reinforcing bars 450 by the reinforcing reinforcing bars 450. The reinforced reinforcing bars 450 are joined to the reinforcing reinforcing bars 450 by reinforcing bars.
26. A steel-concrete hybrid PC column and a PC beam having joints according to claim 25 or 26,
(1) a step of recovering the PC beam 400 on one side of the PC column 100 ';
(2) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 ', and the compensating section steel frame 490 is moved out of the outer surface of the column concrete 110' A PC beam joining step for joining the projected column bracket 290;
(3) a PC beam installation step of repeating the steps (1) and (2) on the other surface of the PC column 100 'to install a plurality of PC beams 400;
(4) installing a second end plate (500) on the beam bracket (300 ') to close the space between the end of the beam concrete (410) and the outer surface of the column concrete (110');
(5) Concrete pouring step for pouring concrete (not shown);
(6) a step of dismounting the lower end plate 500 during the curing or curing of the concrete (not shown);
The method of claim 1, wherein the reinforced concrete pillar and the reinforced concrete pavement of the steel frame are made of steel.
A steel-concrete hybrid PC column and a PC beam having a joining portion according to Claim 27 are used.
(1) a step of recovering the PC beam 400 on one side of the PC column 100 ';
(2) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 ', and the compensating section steel frame 490 is moved out of the outer surface of the column concrete 110' A PC beam joining step of fastening the reinforcing reinforcing bars 450 to the beam reinforcing bars 270 by fastening them to the protruded column brackets 290;
(3) a PC beam installation step of repeating the steps (1) and (2) on the other surface of the PC column 100 'to install a plurality of PC beams 400;
(4) installing a second end plate (500) on the beam bracket (300 ') to close the space between the end of the beam concrete (410) and the outer surface of the column concrete (110');
(5) Concrete pouring step for pouring concrete (not shown);
(6) a step of dismounting the lower end plate 500 during the curing or curing of the concrete (not shown);
The method of claim 1, wherein the reinforced concrete pillar and the reinforced concrete pavement of the steel frame are made of steel.
26. The method of claim 26,
The column center frame 250; Instead, a column steel frame 252 'is installed from the top to the bottom of the PC column 100'
And the one end of the column bracket (290) is joined to the column steel frame (252 '). The rigid joint structure of the steel frame-concrete hybrid column and the PC beam is provided with the joining portion.
The hybrid joint structure of a steel-concrete hybrid PC column and a PC beam in which the joint of claim 30 is installed is used,
(1) a step of recovering the PC beam 400 on one side of the PC column 100 ';
(2) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is placed on the beam bracket 300 ', and the compensating section steel frame 490 is moved out of the outer surface of the column concrete 110' A PC beam joining step for joining the projected column bracket 290;
(3) a PC beam installation step of repeating the steps (1) and (2) on the other surface of the PC column 100 'to install a plurality of PC beams 400;
(4) installing a second end plate (500) on the beam bracket (300 ') to close the space between the end of the beam concrete (410) and the outer surface of the column concrete (110');
(5) Concrete pouring step for pouring concrete (not shown);
(6) a step of dismounting the lower end plate 500 during the curing or curing of the concrete (not shown);
The method of claim 1, wherein the reinforced concrete pillar and the reinforced concrete pavement of the steel frame are made of steel.
3. The method according to claim 1 or 2,
The fixing bracket 300 is omitted,
And a lower end of the beam concrete (410) is mounted on an end of the column top plate (230). The steel joint structure of a steel-concrete hybrid PC column and a PC beam is provided with a joint.
A steel-concrete hybrid PC column and a PC beam having the joining portion according to claim 32 are used.
(1) a PC column coupling step of coupling the upper PC column 200 to the upper part of the lower PC column 100;
(2) a step of recovering the PC beam 400 on one surface of the upper PC column 200;
(3) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is mounted on the end of the column upper plate 230, and the compensating part steel frame 490 is moved outside the column top concrete 210 A PC beam joining step for joining the projected column bracket 290;
(4) repeating the steps (2) to (3) on the other surface of the upper PC column 200 to install a plurality of PC beams 400;
(5) installing a lower end plate (500) in the bracket bracket (300) so as to close the space between the end of the beam concrete (410) and the outer surface of the column upper concrete (210);
(6) Concrete pouring step for pouring concrete (not shown);
(7) disassembling the secondary plate 500 during the curing or curing of the concrete (not shown);
The method of claim 1, wherein the reinforced concrete pillar and the reinforced concrete pavement of the steel frame are made of steel.
25. The method of claim 24,
The fixing bracket 300 is omitted,
And a lower end of the beam concrete (410) is mounted on an end of the column top plate (230). The steel joint structure of a steel-concrete hybrid PC column and a PC beam is provided with a joint.
The rigid joint structure of the steel-concrete hybrid PC column and the PC beam with the joining part of the claim 34 is used,
(1) a PC column coupling step of coupling the upper PC column 200 to the upper part of the lower PC column 100;
(2) a step of recovering the PC beam 400 on one surface of the upper PC column 200;
(3) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is mounted on the end of the column upper plate 230, and the compensating part steel frame 490 is moved outside the column top concrete 210 A PC beam joining step for joining the projected column bracket 290;
(4) repeating the steps (2) to (3) on the other surface of the upper PC column 200 to install a plurality of PC beams 400;
(5) installing a lower end plate (500) in the bracket bracket (300) so as to close the space between the end of the beam concrete (410) and the outer surface of the column upper concrete (210);
(6) Concrete pouring step for pouring concrete (not shown);
(7) disassembling the secondary plate 500 during the curing or curing of the concrete (not shown);
The method of claim 1, wherein the reinforced concrete pillar and the reinforced concrete pavement of the steel frame are made of steel.
26. The method of claim 25 or 26,
A coble 300 '' protruding from the outer surface of the column concrete 110 'is formed instead of the bracket 300'
And a lower end of the beam concrete (410) is mounted on the upper part of the cobble (300 ''). The rigid joint structure of the steel-concrete hybrid PC column and the PC beam with the joint attached.
A steel-concrete hybrid PC column and a PC beam having the joint of claim 36 are used.
(1) a step of recovering the PC beam 400 on one side of the PC column 100 ';
(2) The PC beam 400 is lowered so that the lower end of the beam concrete 410 is mounted on the upper part of the coble 300 ', and the compensating part steel frame 490 is moved out of the outer surface of the column concrete 110' A PC beam joining step for joining the projected column bracket 290;
(3) a PC beam installation step of repeating the steps (1) and (2) on the other surface of the PC column 100 'to install a plurality of PC beams 400;
(4) installing a second end plate (500) on the beam bracket (300 ') to close the space between the end of the beam concrete (410) and the outer surface of the column concrete (110');
(5) Concrete pouring step for pouring concrete (not shown);
(6) a step of dismounting the lower end plate 500 during the curing or curing of the concrete (not shown);
The method of claim 1, wherein the reinforced concrete pillar and the reinforced concrete pavement of the steel frame are made of steel.
3. The method according to claim 1 or 2,
The PC beam 400 has a beam lower reinforcing bar 420 protruding from its end,
The reinforcing bars 420 are coupled to coupling reinforcing bars (not shown) protruding from the side of the column top concrete 210. The steel reinforced concrete pillars and the PC beams are welded Bond structure.
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