KR102570449B1 - Prefabricated pc pole assembly structure using smart intermediate connector and construction method as the same - Google Patents

Abstract

In the present invention, the present invention is installed between the lower pillar, the upper pillar installed on the upper part of the lower pillar, and the lower pillar and the upper pillar, the upper pillar is installed in the center of the upper surface to support the upper pillar, and the double beam is installed on the upper surface. Including a smart intermediate connector in which a slab is placed and installed, the lower surface of the smart intermediate connector is seated on the upper surface of the lower column, and the flat cross-section is larger than the flat cross-sectional area of the lower column, and the upper column and the double double A prefabricated PC column assembly structure using a smart intermediate connector, characterized in that it includes a support portion in which a beam is installed and a slab is poured, and a fixing portion installed in the support portion to connect and fix the support portion, lower column, and upper column to each other, and its construction method can be provided. According to the above, even if the size and structure of the pillars are changed, all of them are composed of one size that can be installed, and workability and productivity can be improved.

Description

Prefabricated PC column assembly structure using smart intermediate connector and its construction method {PREFABRICATED PC POLE ASSEMBLY STRUCTURE USING SMART INTERMEDIATE CONNECTOR AND CONSTRUCTION METHOD AS THE SAME}

The present invention relates to a prefabricated PC column assembly structure using a smart intermediate connector and a construction method thereof, and more particularly, even if the size and structure of the column are changed, it is composed of one size that can be installed with all of them to improve workability and productivity. It relates to a prefabricated PC column assembly structure using a smart intermediate connector that can be used and a construction method thereof.

In general, the concrete building construction method is to form a structure by making a formwork, pouring concrete into the formwork, and curing it. Beginning with the so-called half-slab construction method, which completes the structure by pouring concrete after installation, upper reinforcement and electrical wiring, a building construction method that is easy to install and construct, improves stability and reliability, and shortens the construction period is being developed. there is.

On the other hand, as a technology for such a building construction method, conventionally, it is constructed with a precast composite beam manufactured in advance using steel frame, reinforcing bars and concrete, and in detail, a precast concrete composite column is first installed, and the precast composite beam is PC. A connection bracket protruding out of the column is used or, in the case of a composite steel frame, it is connected by welding, and a slab formwork or deck plate is installed on the upper surface of the connected composite beam.

On the other hand, in the prior art, in order to be safe without the risk of falling off in assembling the PC member, it is common to first install a bracket integrated with the PC column and then install the PC girder and PC slab thereon.

However, in this conventional case, when the size of the column is changed, the size of the bracket is also changed corresponding to the changed column, and the length of the girder is also changed by the size of the changed column, so brackets and girders of different sizes have to be installed on each floor, As a result, there was a problem in that the work increased, the work was cumbersome, and the overall productivity was lowered.

Republic of Korea Patent Registration No. 0797194

In the present invention, even if the size and structure of the column is changed, it is possible to construct using a smart intermediate connector composed of one size, so that the size of the installed beam can also be constructed using one size, thereby improving workability and productivity. The purpose is to provide a prefabricated PC column assembly structure using a smart intermediate connector and a construction method thereof.

According to one aspect of the present invention, the present invention and the lower column; an upper pillar installed on top of the lower pillar; It is installed between the lower column and the upper column, the upper column is installed in the center of the upper surface to support the upper column, and the double beam is seated on the upper surface and the slab is placed on the smart intermediate connector; including, In the connection body, the lower surface is installed on the upper surface of the lower column, the flat cross-section area is larger than the flat cross-sectional area of the lower column, the upper column and the double beam are installed on the upper surface, and the slab is installed and the topping concrete is poured It is possible to provide a prefabricated PC pillar assembly structure using a smart intermediate connector, comprising a support part and a fixing part installed in the support part to connect and fix the support part, the lower pillar and the upper pillar to each other.

Here, the fixing part may include a plurality of main bars installed in the lower pillar, the support part, and the upper pillar, and a fixing anchor installed in the lower pillar and the support part.

In addition, the support part is installed between the lower pillar and the support part to form a gap space in which mortar or concrete is filled between the lower pillar and the support part, and a gap member passing through the support part to communicate with the gap space. It includes a corrugated pipe installed in the support and into which the main bars are arranged and installed, an inlet formed in the support so as to communicate with the clearance space to inject and pour mortar, and an inlet formed in the support to supply internal air during mortar placement. A discharge hole for discharging may be formed.

At this time, the injection port is formed in the vertical direction in the central portion of the support portion so that the mortar is poured down from the upper portion of the support portion, and the discharge hole may be formed in the injection port or inside the corrugated pipe.
In addition, in the support part, the lower reinforcement of the lower column may be fixed inside the corrugated pipe, the upper reinforcement of the upper column and the lower reinforcement may be directly connected, or the lower reinforcement and the upper reinforcement may be overlapped.

According to another aspect of the present invention, the present invention provides a first step of installing a smart intermediate connector on top of a lower pillar; and a second step of seating a double beam on top of the smart intermediate connector; and the double beam. And a third step of placing a slab on top of the smart intermediate connector and then pouring topping concrete; and a fourth step of installing an upper column on top of the smart intermediate connector when curing of the topping concrete is completed. Including, the smart intermediate connection body, the lower surface is seated and installed on the upper surface of the lower pillar, the flat cross-sectional area is formed larger than the flat cross-sectional area of the lower pillar, the upper pillar and the double beam are installed on the upper surface, and the slab is It is possible to provide a prefabricated PC column construction method using a smart intermediate connector, characterized in that it includes a support portion to be poured, and a fixing portion installed in the support portion to connect and fix the support portion, the lower column, and the upper column to each other. .

The fixing part includes a plurality of main bars installed in the lower pillar, the support part, and the upper pillar, and a fixing anchor installed in the lower pillar and the support part,

The support part includes a gasket member installed between the lower pillar and the support part to form a gap space in which mortar or concrete is filled between the lower pillar and the support part, and the support part passing through the support part to communicate with the gap space. It includes a corrugated pipe installed inside and installed by placing the main bars inside, and an inlet formed in the support part to communicate with the clearance space to inject and pour mortar, and an inlet formed in the support part to discharge internal air during mortar placement A discharge hole is formed,

The first step is

After installing the gasket member on the rim of the upper surface of the lower column, the support portion is seated to form a gap space between the lower surface of the support portion and the upper surface of the lower column, and after placing the main bars into the corrugated pipe, the It is possible to provide a prefabricated PC column construction method using a smart intermediate connector, characterized in that by injecting mortar through the injection hole to couple the support, the main bar and the lower column.
In addition, the first step is configured by fixing the lower reinforcement of the lower column inside the corrugated pipe, directly connecting the upper reinforcement of the upper column and the lower reinforcement, or overlapping the lower reinforcement and the upper reinforcement. can

The present invention relates to a prefabricated PC column assembly structure using a smart intermediate connector and a construction method thereof. Conventionally, the size of the column gradually decreases toward the upper floors of the building, and the size of the bracket also decreases correspondingly, but the length of the girder Conversely, as it gradually increases, it is a factor that hinders productivity improvement through modularization and standardization, which are advantages of PC members, but the present invention uses a smart intermediate connector composed of one size even if the size and structure of the column is changed. By doing so, the size of the beam to be installed can also be constructed using one size, providing an effect of improving workability and productivity.

1 is a perspective view showing a prefabricated PC pillar assembly structure using a smart intermediate connector according to a first embodiment of the present invention.
2 is a plan view of a prefabricated PC pillar assembly structure using a smart intermediate connector according to a first embodiment of the present invention.
3 is a cross-sectional view taken along line AA of FIG. 2 .
4 is a cross-sectional view taken along line BB of FIG. 2 .
5 is a perspective view showing a prefabricated PC pillar assembly structure using a smart intermediate connector according to a second embodiment of the present invention.
6 is a plan view of a prefabricated PC pillar assembly structure using a smart intermediate connector according to a second embodiment of the present invention.
7 is a cross-sectional view taken along line AA of FIG. 6 .
8 is a cross-sectional view taken along line BB of FIG. 6 .
9 is a perspective view showing a prefabricated PC pillar assembly structure using a smart intermediate connector according to a third embodiment of the present invention.
10 is a plan view of a prefabricated PC pillar assembly structure using a smart intermediate connector according to a third embodiment of the present invention.
11 is a cross-sectional view along line AA of FIG. 10 .
12 is a cross-sectional view taken along line BB of FIG. 10 .
13 is a perspective view showing a prefabricated PC pillar assembly structure using a smart intermediate connector according to a fourth embodiment of the present invention.
14 is a plan view of a prefabricated PC pillar assembly structure using a smart intermediate connector according to a fourth embodiment of the present invention.
15 is a cross-sectional view taken along line AA of FIG. 14 .
16 is a cross-sectional view taken along line BB of FIG. 14 .
17 is a cross-sectional view showing an injection hole and a discharge hole for injecting mortar in a prefabricated PC column assembly structure using a smart intermediate connector according to an embodiment of the present invention.
18 is a plan view showing an inlet and a discharge hole in a prefabricated PC pillar assembly structure using a smart intermediate connector according to an embodiment of the present invention.
19 is a procedure diagram showing a method for constructing a prefabricated PC pillar using a smart intermediate connector according to an embodiment of the present invention.
20 to 23 are front cross-sectional views showing various embodiments of main reinforcing bar joints in the prefabricated PC column construction method using a smart intermediate connector according to an embodiment of the present invention.

Hereinafter, a preferred embodiment will be described with reference to the accompanying drawings so that the present invention can be more specifically understood.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail. In order to facilitate overall understanding in the description of the present invention, the same reference numerals are used for the same components in the drawings, and redundant descriptions of the same components are omitted.

First of all, in the conventional PC pillar assembly structure, when assembling PC pillars, brackets are installed, and PC girders and slabs are installed on them. There was a problem in that productivity was lowered because brackets of different sizes had to be installed.

Accordingly, the prefabricated PC pillar assembly structure using the smart intermediate connector according to the embodiment of the present invention (hereinafter referred to as 'prefabricated PC pillar assembly structure') is a one-size compatible with pillars of various sizes. Even if the size of the column is changed using the smart intermediate connector, assembly can be performed without changing or replacing the smart intermediate connector, thereby providing an effect of greatly improving workability and productivity.

On the other hand, the prefabricated PC pillar assembly structure according to an embodiment of the present invention includes smart intermediate connectors of four embodiments, and hereinafter, each of these four embodiments will be reviewed.

First, with reference to Figures 1 to 4 to look at the prefabricated PC pillar assembly structure according to the first embodiment of the present invention.

1 and 2, the prefabricated PC pillar assembly structure according to the first embodiment is a solid type (pin joint), a lower pillar 10, and an upper pillar installed on top of the lower pillar 10 (20) and a smart interconnection body.

Here, the lower column 10 and the upper column 20 can be applied to the existing PC structure, a detailed description thereof will be omitted.

The smart intermediate connecting body is installed between the lower pillar 10 and the upper pillar 20, and the upper pillar 20 is installed in the center of the upper surface to support the upper pillar 20, and double the upper surface. The beam 30 may be seated and the slab 40 (see FIG. 3) may be cast.

In detail, the smart interconnection body may include a support part 100 and a fixing part 900.

First, the support part 100 is installed so that the lower surface is seated on the upper surface of the lower pillar 10. At this time, the support part 100 has a flat cross-sectional area larger than that of the lower pillar 10 to cover the lower pillar 10, and the upper pillar 20 and the double beam 30 are formed as upper surfaces. can be installed.

In the support part 100, the slab 40 and the topping concrete 50 may be poured as shown in FIGS. 3 and 4 above the double beam 30 and the support part 100.

In detail, the support part 100 may include a lower support member 110, an upper support member 120, and a pillar coupling member 130.

First, the lower support member 110 is installed while being seated on the upper surface of the lower pillar 10, and the flat cross-sectional area may be formed larger than the flat cross-sectional area of the lower pillar 10.

The lower support member 110 may have seating steps 111 on both sides of the upper surface on which the double beams 30 are seated and installed.

The upper support member 120 is formed between the double beams 30 on the inner side of the seating jaws 111 on the upper surface of the lower support member 110, and the pillar coupling member 103 is coupled to the top A slab 40 may be poured onto the upper surface.

The pillar coupling member 130 is installed to protrude from the center of the upper surface of the upper support member 120, and the upper pillar 20 may be installed to the upper surface.

On the other hand, the lower support member 100, the upper support member 120 and the column coupling member 130 may be formed in a rectangular shape as shown, but the shape of the double beam 30 and the lower column 10 ) and can be formed in various forms corresponding to the shape of the upper pillar 20.

The fixing part 900 is installed in the support part 100 and serves to connect and fix the support part 100, the lower pillar 10, and the upper pillar 10 to each other.

Referring to FIGS. 3 and 4, the fixing part 900 includes a plurality of main bars 910 installed by being reinforced on the support part 100 and the upper pillar 20, and installed on the support part 100. A fixed anchor 920 may be included.

Here, the fixed anchor 920, as shown, is embedded and reinforced on the central axis of the support part 100, and a plurality of main bars 910 may be embedded and installed around the main bars 910.

A known reinforcing bar may be applied to the main bar 910, and a known anchor or the like may be applied to the fixed anchor 920.

Next, with reference to FIGS. 5 to 8, a prefabricated PC pillar assembly structure according to a second embodiment of the present invention will be looked at.

First, the prefabricated PC pillar assembly structure according to the second embodiment of the present invention includes the same lower pillar 10, upper pillar 20, slab 40, Since the topping concrete 50 and the like can be applied, the following will focus on the smart intermediate connector that is largely distinguished from this.

5 and 6, the prefabricated PC pillar assembly structure according to the second embodiment is a partial casting type (solid pillar), and the smart intermediate connector includes a support part 200 and a fixing part 900. can do.

The support part 200 may include a lower support member 210, a partial casting support member 220, and a column coupling member 230.

The lower support member 210 is installed so that the lower surface is seated on the upper surface of the lower pillar 10 and has a flat cross-sectional area larger than the flat cross-sectional area of the lower pillar 10, and the double beam 30 is formed on both sides of the upper surface. Seating jaws 211 to be seated and installed may be formed.

The partial casting support member 220 is formed to protrude outside the upper surface of the lower support member 210 so as to form a pouring space 201 in which concrete is poured inside, and the double beams 30 are in close contact with both ends. and can be combined.

Here, the partial casting support member 220, as shown, both sides form a right angle to correspond to the side shape of the facing double beam 30, and the inner side is formed inclined, so as shown, the longitudinal cross-sectional shape is approximately a right angle trapezoid. can be formed into shapes.

However, this is a preferred embodiment, and the partial casting support member 200 may be formed in a rectangular hexahedron shape in longitudinal section.

On the other hand, the partial casting support member 220 has a round corner portion along the inner longitudinal direction so that a gap is generated at the inner corner portion when the slab 40 is formed by pouring concrete to the inside so that lifting does not occur ( not shown) can be formed.

Furthermore, the support part 200 may be provided with a bonding member (not shown) for bonding with concrete.

The joint member may be a stud bolt or reinforcing bar, and is formed to protrude from the upper surface of the lower support member 210 or is formed on the partial casting support member 200 to join concrete in the pouring space 201. can improve

Alternatively, the joint member is disposed spaced apart from the upper surface of the lower support member 200 in a horizontal direction, one end is embedded in the partial casting support member 200 and the other end is embedded in the pillar coupling member 230 It is possible to support the partial pouring support member 200 against the pouring pressure generated during concrete pouring and to improve bonding with concrete.

The pillar coupling member 230 is erected and installed at the center of the upper surface of the lower support member 210 in the pouring space 201, and the upper pillar 20 may be installed on the upper surface.

Referring to FIGS. 7 and 8 , the fixing part 900 is installed on the support part 200 and the plurality of main bars 910 installed by being reinforced on the upper pillar 20, and the support part 200. It may include a fixed anchor 920 that is, which has been described above.

Hereinafter, a prefabricated PC pillar assembly structure according to a third embodiment of the present invention will be described with reference to FIGS. 9 and 12 .

First, referring to FIGS. 9 and 10 , in the third embodiment, the double beam 30 may have protrusions 32 protruding from both ends.

The protruding part 32 is protruded from the end of the double beam 30 so that when the double beam 30 faces each other, the side surfaces of the facing ends come into contact with each other so that concrete is poured in the pouring space 401 It can be formed to form.

As shown, the protrusions 32 may be formed flat in a vertical direction, as shown, with end sides facing each other as shown.

Alternatively, the protruding portion 32 may have an inclined surface formed so that end sides facing each other are inclined in a planar shape. Accordingly, the protruding part 32 can increase the contact area of the ends of the double beams 30 facing each other through the inclined surface to improve jointability, and furthermore, when the double beams 30 are brought into contact, the double beams 30 The difference in length between fields can be offset.

On the other hand, the prefabricated PC pillar assembly structure according to the third embodiment is a protruding partial casting type, and the smart intermediate connection body may include a support part 300 and a fixing part 900.

The support part 300 may include a lower support member 310 and a pillar coupling member 330 .

The lower support member 310 is installed so that the lower surface is seated on the upper surface of the lower pillar 10 and has a flat cross-sectional area larger than that of the lower pillar 10, and the double beam 30 is formed on both sides of the upper surface. Seating jaws 311 on which the end and the protrusion 32 are seated and installed may be formed.

The pillar coupling member 330 is erected and installed at the center of the upper surface of the lower support member 310 in the pouring space 401 formed by the protrusion 32, and the upper pillar 20 can be installed on the upper surface. there is.

Referring to FIGS. 11 and 12, the fixing part 900 includes a plurality of main bars 910 installed by being reinforced on the support part 300 and the upper pillar 20, and installed in the support part 300. It may include a fixed anchor 920 to be.

A prefabricated PC pillar assembly structure according to a fourth embodiment of the present invention will be looked at with reference to FIGS. 13 to 16 .

The prefabricated PC pillar assembly structure according to the fourth embodiment is a void type completely cast type, and the smart intermediate connection body may include a support part 400 and a fixing part 900.

The support part 400 may include a lower support member 410 and a partial casting support member 420 .

The lower support member 410 is installed so that the lower surface is seated on the upper surface of the lower pillar 10 and has a flat cross-sectional area larger than the flat cross-sectional area of the lower pillar 10, and the double beam 30 is formed on both sides of the upper surface. Seating jaws 411 to be seated and installed may be formed.

The partial casting support member 420 is formed to protrude outside the upper surface of the lower support member 410 so that concrete is poured inward and a pouring space 401 in which the upper column 20 is buried during concrete pouring is formed. It can be. Since the partial casting support member 420 corresponds to the configuration of the partial casting support member 220 of the second embodiment described above, a detailed description thereof will be omitted.

15 and 16, the fixing part 900 includes a plurality of main bars 910 installed by being reinforced on the support part 400 and the upper pillar 20, and installed in the support part 400. It may include a fixed anchor 920 to be.

Hereinafter, a connection between the lower pillar 10 and the support parts 100, 200, 300, and 400 through mortar filling will be described.

In general, as a concrete structure is a combination of concrete that is strong in compression and reinforcing bars that are strong in tension, PC structures, unlike RC structures, are essential to be manufactured and installed separately. The prefabricated PC column assembly structure according to the example responds to errors that may occur in the field during the jointing of the main bars 910 and secures natural constructability for the assembly of members or the fitting of the main bars 910 (rebar). ) has a certain amount of play in the part where reinforcement is placed.

Although this gap is partially filled by permeating and filled by the cast-in-place concrete, it is preferable to fill the mortar 60 with good fluidity in advance because a void may occur. In the present invention, the mortar 60 is pre-filled in the clearance of the inside of the corrugated pipe 600, etc., so that the reinforcing bars can be structurally and safely moved when the structure is moved.

On the other hand, a method of filling the mortar 60 may be filled from the bottom to the top. Since this is a method against gravity, it can be injected using a separate pressure machine, and this method can be tightly filled with little air or interference inside.

As another method, the mortar 60 may be filled using gravity from the top. In this case, it is convenient because no special machine is used during field work, but since voids are sometimes generated by various embedded materials, reinforcing bars, bubbles, etc., it is preferable to form the void relatively large.

Accordingly, with reference to FIGS. 17 and 18, a method of filling the mortar 60 in the present invention and a configuration therefor will be reviewed.

First, the support parts 100, 200, 300, and 400 are installed between the lower pillar 10 and the support parts 100, 200, 300, and 400, and the gap space between the lower pillar 10 and the support parts 100, 200, 300, and 400 is filled with mortar 60 or concrete. A gasket member 500 forming a and a corrugated pipe 600 installed in the support portions 100, 200, 300, and 400 so as to pass through the support portions 100, 200, 300, and 400 to communicate with the clearance space and to which the main bars 910 are reinforced and installed therein. can do.
Here, in the support portions 100, 200, 300, and 400, the main reinforcing bars may be placed in various ways. The lower reinforcing bars 11 of the lower column 10 (see FIG. The upper reinforcing bar 21 and the lower reinforcing bar 11 may be directly connected or the lower reinforcing bar 11 and the upper reinforcing bar 21 may be overlapped. Let's look at it in more detail.

In addition, the support parts 100, 200, 300, and 400 are formed in the support parts 100, 200, 300, and 400 so as to communicate with the gap space, and mortar 60 is injected and poured into the injection port 710, and formed in the support parts 100, 200, 300, and 400 to pour mortar 60. A discharge hole 720 for discharging internal air may be formed.

On the other hand, the support portion should have a structure in which internal air can be naturally discharged when mortar is injected. Accordingly, the support portion may form an inlet and an outlet hole according to the following two embodiments.

First, when mortar is injected through the injection hole 710, the support parts 100, 200, 300, and 400 may have a discharge hole 720 formed therein to collect internal air and discharge it.

Referring to FIG. 18, a plurality of injection ports 710 are formed in the upper and lower portions of the supports 100, 200, 300, and 400 in a vertical direction so that the mortar 60 is poured in a top-down manner from the top of the supports 100, 200, 300, and 400, and the discharge hole 720 is The supporting parts 100, 200, 300, and 400 may be formed in a vertical direction at the central part.

Referring to FIG. 17, the support portions 100, 200, 300, and 400 have an injection port 710 formed in the central portion to inject mortar. When mortar is injected from the central portion, the internal air is gathered outside and is naturally discharged through the corrugated pipe 600 for connecting the main bars. A discharge hole 720 may be formed so as to be made.

That is, according to the foregoing, the inlet 710 is formed in the vertical direction at the central part of the support parts 100, 200, 300, and 400 so that the mortar 60 is poured down from the top of the support parts 100, 200, 300, and 400, and the discharge hole 720 may be formed inside the inlet 710 or inside the corrugated pipe 600 .

Hereinafter, a method for constructing prefabricated PC pillars using a smart intermediate connector according to an embodiment of the present invention will be described.

Referring to FIG. 19, the method for constructing a prefabricated PC column using a smart intermediate connector according to an embodiment of the present invention includes a first step (S10) of installing a smart intermediate connector on the top of a lower pillar 10, and the smart intermediate connector. The second step (S20) of seating the double beam 30 on the upper part of the intermediate connector, and the topping concrete 50 after installing the slab 40 on the upper part of the double beam 30 and the smart intermediate connector It may include a third step (S30) of pouring and a fourth step (S40) of installing an upper column on top of the smart intermediate connection body when the curing of the topping concrete 50 is completed.

In the first step (S10), after installing the gasket member 500 on the upper surface rim of the lower pillar 10, the support parts 100, 200, 300, and 400 are seated on the lower surface of the support parts 100, 200, 300, and 400 and the lower pillar ( 10) to form a clearance space between the upper surfaces of the corrugated pipe 600, and after placing the main bars 910 into the inside of the corrugated pipe 600, mortar 60 or concrete is injected through the injection port 710 to The main bar 910 and the lower column 10 may be coupled.

Alternatively, in the first step (S10), in order for the mortar 60 to be poured downward by gravity, the inlet 710 is placed on the support portions 100, 200, 300, and 400 so that the mortar 60 is poured downward. It is formed in the vertical direction at the center of (100, 200, 300, 400), and the discharge hole 720 may be formed inside the inlet 710 or inside the corrugated pipe 600.

Alternatively, in order for the mortar 60 to be poured downward by gravity, the inlet 710 moves upward and downward on the outside of the support portions 100, 200, 300, and 400 so that the mortar 60 is poured downward from the top of the support portions 100, 200, 300, and 400. A plurality is formed, and the discharge hole 720 may be formed in a vertical direction at the central portion of the support portion 100, 200, 300, and 400.
Hereinafter, in the method of constructing a prefabricated PC column using a smart intermediate connector according to an embodiment of the present invention, various methods of connecting main reinforcing bars (main bars) will be described.
First of all, according to the above, in the first step (S10), after installing the supports (100, 200, 300, 400) on the upper part of the lower column (10), reinforcing the main reinforcing bars into the corrugated pipe (600), and then injecting mortar (60) or concrete By combining the main reinforcing bars, through which the support parts 100, 200, 300, 400, the lower pillar 10 and the upper pillar 20 can be coupled to each other.
At this time, the main reinforcing bars may be divided into the lower reinforcing bars 11 of the lower column 10 and the upper reinforcing bars 21 of the upper column 20, and the lower reinforcing bars 11 and the upper reinforcing bars in the support parts 100, 200, 300, and 400 ( 12) may be combined to combine the support parts 100, 200, 300, and 400, the lower pillar 10, and the upper pillar 20.
Here, the lower reinforcing bars 11 and the upper reinforcing bars 21 are placed in the corrugated pipe 600 at the supports 100, 200, 300, and 400, and may be fixed by filling mortar or concrete or combined with various joints. let's take a look at it
20 to 23 are front cross-sectional views showing various embodiments of main reinforcing bar joints in the prefabricated PC column construction method using a smart intermediate connector according to an embodiment of the present invention.
First, in the case of FIG. 20, the corrugated pipe 600 is installed in the smart intermediate connector and is an embodiment showing the case of a solid column type, and in the case of FIG. 21, the corrugated pipe 600 is installed in the smart intermediate connector and the cast-type column This is an embodiment showing the case of a type, and the smart intermediate connector can be segmented in consideration of the tensile joint length of the main reinforcing bars.
In this case, looking at the connection between the lower reinforcing bar 11 and the upper reinforcing bar 21, first, as shown in the upper reinforcing bar 21, a corrugated pipe 60 may be installed inside the lower end, and the lower reinforcing bar 21 It can be placed inside the corrugated pipe 60 and fixed by mortar or concrete (the part marked ① in the drawing), and the lower reinforcement 11 and the upper reinforcement 21 are overlapped joints in the support parts 100, 200, 300, 400 (part marked as ② in the drawing), or it can be directly jointed (part marked as ③ in the drawing). The hatched portion in the drawing indicates the portion where the slab and the topping concrete are poured.
On the other hand, Figure 21 is a pour-type column method, the joint length can be increased according to the strength of the poured concrete, and accordingly, the depth of the smart intermediate connector can be increased.
Next, FIGS. 22 and 23 are examples showing the case of an attachable solid column type. First, in FIG. 22, the lower reinforcement 11 and the upper reinforcement 21 are installed in the supports 100, 200, and 300, and the corrugated pipe 600 is installed at the upper end of the lower column 10, and the lower reinforcement 11 is installed into the corrugated pipe 600. ) can be placed and settled.
23, the corrugated pipe 600 is installed at the lower end of the support part 100, 200, 300, and the lower reinforcing bar 11 can be placed and fixed in the corrugated pipe 600.
In the connection between the lower reinforcement 11 and the upper reinforcement 21 in FIGS. 22 and 23, as shown, the lower reinforcement 11 is settled in the support parts 100, 200, and 300 (the part indicated by ① in the drawing) , The lower reinforcing bar 11 and the upper reinforcing bar 21 may be overlapped jointed (portion indicated by ② in the drawing) or directly jointed (portion indicated by ③ in the drawing).

On the other hand, in the case of FIGS. 22 and 23, the connection sleeve 40 may be disposed on the smart intermediate connector, and there is no significant relationship between the cross-sectional differences between the upper column 20 and the lower column 10 during construction. Furthermore, in the case of FIG. 22, care is required during handling (field storage), but in the case of FIG. 23, handling is relatively free. In addition, in the case of FIG. 22, it is necessary to pay attention to bubbles or voids when filling the connecting slab (or topping concrete), but in the case of FIG. 23, the pipe length of the inlet and outlet may be long when filling the connecting sleeve.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is only exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

10: lower column 11: lower reinforcement
20: upper column 12: upper reinforcing bar
30: double beam 32: protrusion
40: slab 50: topping concrete
60: mortar 100,200,300,400: support
110,210,310,410: lower support member 111,211,311,411: seating jaw
120: upper support member 130,230,330: column coupling member
220,420: partial casting support member 201,401: casting space
500: gasket member 600: corrugated pipe
710: inlet 720: discharge hole
900: fixing part 910: main root
920: fixed anchor

Claims (6)

The lower pillar 10, the upper pillar 20 installed on the upper part of the lower pillar 10, and installed between the lower pillar 10 and the upper pillar 20, the upper pillar 20 is installed in the center of the upper surface In the prefabricated PC column assembly structure using a smart intermediate connector that supports the upper column 20, the double beam 30 is seated on the upper surface, and the construction is performed by the smart intermediate connector in which the slab 40 is poured,
The smart intermediate linkage
The lower surface is seated on the upper surface of the lower pillar 10, and the upper pillar 20 and the double beam 30 are installed on the upper surface, but the flat cross-sectional area is formed larger than the flat cross-sectional area of the lower pillar 10, so that the lower pillar 10 A support portion configured to cover the double beam 30 and the support portion in which the slab 40 and the topping concrete 50 are poured on top of the support portion;
A gasket member 500 installed between the lower column 10 and the support to form a gap space filled with mortar 60 or concrete between the lower column and the support;
A corrugated pipe 600 installed in the support so as to pass through the support and communicate with the gap space;
A fixing part 900 installed in the support to connect and fix the support, the lower pillar 10, and the upper pillar 10 to each other; includes,
The support part is composed of any one of a solid type, a partial casting type, a protruding part protruding partial casting type, and a complete casting type,
A plurality of inlets 710 formed in the support part in the vertical direction to be interlocked with the gap space through which mortar 60 is injected and poured, and discharge holes formed in the vertical direction in the central part of the support part to discharge internal air when the mortar 60 is placed. Including (720),
The fixing part 900 is
The reinforcement is installed on the support and the upper column 20, but is divided into the lower reinforcement 11 of the lower column 10 and the upper reinforcement 21 of the upper column 20, and the reinforcement and installation inside the corrugated pipe 600 A plurality of main roots 910,
A prefabricated PC pillar assembly structure using a smart intermediate connector, characterized in that it includes a fixed anchor 920 embedded on the axis of the central part of the support 100.
According to claim 1,
The support portion is composed of a solid type support portion 100,
The support part 100 is
The lower surface is seated and installed on the upper surface of the lower pillar 10, and the flat cross-sectional area is formed larger than the flat cross-sectional area of the lower pillar 10, and seating jaws 111 are formed on both sides of the upper surface on which the double beams 30 are seated and installed. The lower support member 110 to be,
An upper support member formed between the inner double beams 30 of the seating jaws 111 on the upper surface of the lower support member 110, to which the column coupling member 103 is coupled and the slab 40 is cast on the upper surface ( 120) and,
A prefabricated PC pillar assembly structure using a smart intermediate connector, characterized in that it includes a pillar coupling member 130 installed to protrude from the upper surface central portion of the upper support member 120 and to which the upper pillar 20 is installed to the upper surface.
According to claim 1,
The partial casting type support 200
The lower surface is seated and installed on the upper surface of the lower pillar 10, and the flat cross-sectional area is formed larger than the flat cross-sectional area of the lower pillar 10, and the seating jaws 211 on which the double beams 30 are seated and installed are formed on both sides of the upper surface A lower support member 210,
A partial casting support member 220 formed to protrude outside the upper surface of the lower support member 210 so that the pouring space 201 in which concrete is poured inward is formed, and to which the double beams 30 are closely coupled to both ends, and
It includes a pillar coupling member 230 erected and installed in the center of the upper surface of the lower support member 210 in the pouring space 201 and having the upper pillar 20 installed on the upper surface,
A joint member composed of either a stud bolt or a reinforcing bar is further included,
The bonding member is disposed spaced apart from the upper surface of the lower support member 210 in a horizontal direction, one end is embedded in the partial casting support member 200 and the other end is configured to be embedded in the column coupling member 230, characterized in that A prefabricated PC column assembly structure using a smart intermediate connector.
According to claim 1,
The double beam 30 is formed with protrusions 32 protruding from both ends,
The protruding portion 32 is provided with an inclined surface in which the end side facing each other is formed flat in a vertical direction, or the end side facing each other is formed inclined in a plane, and is formed protruding from the end of the double beam 30 When the double beams 30 face each other, the facing end sides are in contact with each other to form a pouring space 401 in which concrete is poured inwardly,
The support part 300 of the protruding part casting type is
The lower surface is seated and installed on the upper surface of the lower pillar 10, and the flat cross-sectional area is formed larger than the flat cross-sectional area of the lower pillar 10, and is installed by being seated on the end of the double beam 30 and the protrusion 32 on both sides of the upper surface A lower support member 310 on which seating jaws 311 are formed,
Smart characterized in that it includes a pillar coupling member 330 erected and installed on the upper surface central portion of the lower support member 310 in the pouring space 401 formed by the protrusion 32 and having the upper pillar 20 installed on the upper surface Prefabricated PC column assembly structure using intermediate connectors.
According to claim 1,
The full casting type support 400
The lower surface is seated and installed on the upper surface of the lower pillar 10, and the flat cross-sectional area is formed larger than the flat cross-sectional area of the lower pillar 10, and seating jaws 411 are formed on both sides of the upper surface on which the double beams 30 are seated and installed. The lower support member 410 to be,
Including a partial casting support member 420 formed to protrude outside the upper surface of the lower support member 410 so that concrete is poured inward and a pouring space 401 in which the upper column 20 is buried during concrete pouring is formed Prefabricated PC column assembly structure using smart intermediate connectors.
In the prefabricated PC column construction method using the smart intermediate connector according to any one of claims 1 to 5, the construction method
A first step (S10) of installing a smart intermediate connector on the upper part of the lower pillar 10;
A second step (S20) of seating the double beam 30 on top of the smart intermediate connector;
A third step (S30) of placing the topping concrete 50 after installing the slab 40 on top of the double beam 30 and the smart intermediate connector;
When the curing of the topping concrete 50 is completed, a fourth step (S40) of installing an upper column on top of the smart intermediate connector;
The first step (S10) is
After installing the gasket member 500 on the upper edge of the lower pillar 10, the support part is seated to form a clearance space between the lower surface of the support part and the upper surface of the lower pillar, and the main bar 910 enters the inside of the corrugated pipe 600 After arranging, mortar 60 or concrete is injected through the injection port 710 to integrally combine the support, the lower pillar 10, and the upper pillar 20, but the main bar 910 is the lower part of the lower pillar 10. It is divided into the reinforcing bar 11 and the upper reinforcing bar 21 of the upper column 20, and the lower reinforcing bar 11 and the upper reinforcing bar 12 are combined inside the corrugated pipe 600 to fix and combine by filling with mortar or concrete Prefabricated PC pillar construction method using a smart intermediate connector, characterized in that the support, lower pillar 10 and upper pillar 20 are coupled.

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