KR102021119B1 - Channel type pc slab with opening and construction method thereof - Google Patents

Abstract

The present invention relates to a half PC slab installed on a girder supported on a pillar member, including: a plurality of half PC slab members provided to have an interval with each other and forming an opening; a channel member supporting the half PC slab so that the plurality of half PC slab members maintain the interval with each other; and a connecting unit integrally formed on the channel member so that the half PC slab member is integrally coupled to the channel member.

Description

Channel type half PC slab with opening and construction method of building PC slab using the same {CHANNEL TYPE PC SLAB WITH OPENING AND CONSTRUCTION METHOD THEREOF}

The present invention relates to a channel-type half PC slab having an opening and a method of constructing an opening of a building PC slab using the same. More particularly, in forming an opening in a building PC slab, a separate RC structure for openings in the field is provided. A channel type half PC slab having an opening for forming an opening in a building PC slab by constructing a channel type half PC slab having an opening made in a factory without construction, in the same manner as a general half PC slab, and using the same The present invention relates to an opening construction method of a building PC slab.

In the method of constructing concrete slab, reinforced concrete (RC) method, which is a site construction method that installs formwork and reinforces concrete directly after reinforcement, and PC method of assembling and installing precast concrete (PC) members manufactured in the factory It can be divided into

In the PC method, various types of PC members have been developed and used. One such PC member is a half PC slab. Half PC slab is a factory made of concrete slab about half the thickness of the required slab in advance, and the truss reinforcing bar where the lower bar, upper and lower chords and lattice materials are assembled into the PC member mold is poured into the lower bar Are made to be embedded in concrete while the top of the truss prefabricated rebar is exposed in concrete. Such a half PC slab is transported to the construction site and installed at the construction site, and the slab structure is completed by placing the rest of the slab thickness on the site after the upper reinforcement.

In the half PC slab registration No. 10-1839520 'Half slab' is a reinforcing bar is pre-installed in the base body portion of the PC concrete structure, no need for a separate reinforcing bar to reinforce the shear force between the half slabs, thereby Reduction and shorter construction period. In addition, Publication No. 10-2014-0115721 'hollow PC slab having a cross-section and its manufacturing method' is to reduce the weight and manufacturing cost.

Recently, a lot of PC methods using one-way half PC slab have been used for the construction of building slabs. RC (Reinforced Concrete) method, which is a site construction method, is applied to the section where Slab Opening is formed in the PC slab. As the openings are formed, additional operations such as installation of copper bars and formwork, reinforcement and concrete placing are additionally performed in the field, and thus there is a problem that an air delay and a uniform quality slab cannot be secured.

Prior literature

Patent Literature

(Patent Document 0001) Registration No. 10-1839520 (Half Slab)

(Patent Document 0002) Publication No. 10-2014-0115721 (Hollow PC slab having a cross section and a manufacturing method thereof)

The present invention relates to a channel type half PC slab having an opening for solving the above problems and a method for constructing an opening of a building PC slab using the same, wherein an opening (Slab Opening) is formed in a building PC slab in which a one-way half PC slab is used. By using the channel-type half PC slab with openings made in the factory even in the corresponding section, installation of temporary materials such as copper bars and formwork, reinforcement and concrete placement, which occur when openings are formed by conventional RC method, It is not necessary, and therefore, it is intended to shorten the construction period and the purpose thereof.

In addition, the purpose is to form a slab of uniform quality by using a channel-type half PC slab having an opening made in advance in the factory in the corresponding portion formed by the opening in the building PC slab.

According to an aspect of the present invention, there is provided a half PC slab installed in a girder member supported by a pillar member, the plurality of half PC slab members disposed at intervals from each other to form an opening; A channel member supporting a half PC slab member such that a plurality of the half PC slab members are spaced apart from each other; And a connecting portion integrally formed in the channel member such that the channel member and the half PC slab member are integrally coupled to each other, wherein the channel member is simultaneously connected to one side surface of the plurality of half PC slab members that maintain a distance from each other. A first channel; And a second channel connected simultaneously to the other side surfaces of the plurality of half PC slab members spaced apart from each other, wherein the connection portion extends from the side wall portion of the channel member and is impregnated into the half PC slab member. Anchor member; And a protruding anchor extending from an upper surface of the channel member, and manufacturing a channel type half PC slab having an opening at a factory and supplying it to a construction site.
In addition, the half PC slab member of the present invention, the first half PC slab member is integrally connected to one side of the channel member; And a second half PC slab member which maintains a distance from the first half PC slab member and is integrally connected to the other side of the channel member.
In addition, the first channel and the second channel of the present invention is characterized in that the length of the same or similar to the length of the half PC slab.
In addition, the present invention, (a) pre-fabricated in the length and width that can be installed between the girder member, the one-way half PC slab is formed between the lower reinforcement, the upper and lower chords and the truss assembly reinforcement is assembled lattice material; (b) pre-fabricating a channel type half PC slab having the opening of any one of claims 1, 2 and 4 to the same to or similar length as the one-way half PC slab in (a); (c) a channel type half PC having a one-way half PC slab in (a) and an opening of any one of claims 1, 2 and 4 in a plurality of girder members supported by a plurality of pillar members. Installing the slab on site; And (d) reinforcing reinforcement and placing concrete on the upper surface after the step (c), wherein the channel member is simultaneously connected to one side of the plurality of half PC slab members that maintain a distance from each other. 1 channel; And a second channel connected simultaneously to the other side surfaces of the plurality of half PC slab members spaced apart from each other, wherein the connection portion extends from the side wall portion of the channel member and is impregnated into the half PC slab member. Anchor member; And a protruding anchor extending from an upper surface of the channel member, and manufacturing a channel type half PC slab having an opening at a factory and supplying it to a construction site.

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According to an embodiment of the present invention, a channel type half PC slab having an opening and an opening method of a building PC slab using the same include a channel type half PC having an opening in an architectural PC slab in which a plurality of half PC slabs are continuously constructed. Since it is provided by the construction of the slab, it is not required to install a separate RC construction method for the opening as in the past, which can reduce the time and cost required for the opening construction, improve the construction and quality of the slab, and the construction period. There is an advantage that can shorten.

In addition, according to the present invention, when the opening is formed in the half PC slab, the channel member made in advance can be easily manufactured, and thus the unit price of the half PC slab having the opening can be easily manufactured. There is an advantage that can be lowered.

In addition, the present invention is provided with a connecting portion for integrally connecting the half PC slab member and the channel member is connected to the half PC slab member and the channel member integrally, there is an advantage that can strengthen the binding force to construct the opening firmly.

1 is a plan view showing a channel type half PC slab having an opening according to an embodiment of the present invention.
2 is a cross-sectional view of a channel type half PC slab having an opening according to an embodiment of the present invention.
3 is a perspective view illustrating a channel type half PC slab having an opening according to an embodiment of the present invention.
Figure 4 is an enlarged view showing the opening of the channel type half PC slab having an opening according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a channel type half PC slab having an opening according to the present invention and an opening construction method of a building PC slab using the same.

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom.

Therefore, the definitions of these terms should be made based on the contents throughout the specification.

1 is a plan view showing a channel type half PC slab having an opening according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing a channel type half PC slab having an opening according to an embodiment of the present invention 3 is a perspective view showing a channel type half PC slab having an opening according to an embodiment of the present invention, and FIG. 4 is an opening of a channel type half PC slab having an opening according to an embodiment of the present invention. Is an enlarged view.

1 to 4, the channel type half PC slab 30 having an opening according to an embodiment of the present invention is a half PC slab installed in the girder member 14 supported by the pillar member 12. A channel member 50 for supporting a half PC slab member, wherein the plurality of half PC slab members 32 and 34 disposed at intervals to form an opening and the plurality of half PC slab members are spaced apart from each other. And a connecting portion 70 formed integrally with the channel member such that the channel member 50 and the half PC slab members 32 and 34 are integrally coupled to each other.

Therefore, in the PC slab of the building, the opening of the channel type half PC slab 30 having the half PC slab 10 and the opening on the plurality of girders 14 or the beam member supported by the plurality of pillar members 12. By installation.

In the channel type half PC slab 30 having the opening of the present embodiment, a pair of half PC slab members 32 and 34 are provided with a gap between the pair of channel members 50 so as to have one opening. It is made, the same or similar length as the half PC slab 10 is installed on the girder member, is installed between the side or between the half PC slab 10 it is possible to construct a PC slab provided with an opening.

The channel type half PC slab 30 having the opening of the present embodiment includes a first half PC slab member 32 and a first half PC slab member 32 which are integrally connected to one side of the channel member 50. And a second half PC slab member 34 integrally connected to the other side of the channel member 50.

The length of the first half PC slab member 32 and the second half PC slab member 34 may be manufactured in various lengths according to the opening position on the design drawing, and the first half PC slab member 32 and the second half In addition to the PC slab member 34, a plurality of half PC slab members, such as a third half PC slab member and a fourth half PC slab member, may be installed while keeping a distance from each other to form a plurality of openings.

A plurality of ribs 16 are formed on the bottom of the first half PC slab member 32 and the second half PC slab member 34 at regular intervals in the longitudinal direction of the slab to further improve the strength of the slab. It becomes possible.

In addition, the channel member 50 of the present embodiment, the first channel 52 which is simultaneously connected to one side of the plurality of half PC slab members 32, 34 to maintain the spacing with each other and the plurality of keeping the space with each other And second channels 54 simultaneously connected to the other sides of the two half PC slab members 32 and 34.

The first channel 52 forms one end of the channel type half PC slab 30 having an opening, and the second channel 54 forms the other end portion of the channel type half PC slab 30. 52 and the second channel 54 are bent in a cross-sectional shape of the 'c' shape, and both ends of the first half PC slab member 32 and the second half PC slab member 34 are inserted into the inner space to have an opening. A channel type half PC slab is formed.

The first channel 52 and the second channel 54 of this embodiment have the same or similar length as that of the half PC slab 10 provided in the girder member.

In addition, the channel member 50 of the present embodiment has a side wall portion 56 surrounding the side surfaces of the half PC slab members 32 and 34, and the half PC slab member 32 is bent and extended from the side wall portion 56. An upper surface portion 57 in close contact with the 34 and a bottom surface portion 58 bent and extended from the side wall portion 56 and in close contact with the half PC slab members 32 and 34.

The cross-sectional shape of the channel member 50 has a 'c' shape as described above, and the side wall portion 56, the upper surface portion 57, and the bottom surface portion 58 are integrally formed, and the side wall portion 56 is the channel member. Closing both ends of the 50, the upper surface portion 57 surrounds the upper edge of the channel member 50, the bottom portion 58 is installed to surround the lower edge of the channel member (50).

As described above, the channel type half PC slab 30 having an opening is surrounded by a side wall portion 56 including a metal material at both ends, and an upper surface portion 57 is bent and extended from the side wall portion 56. And the bottom portion 58 surrounds both ends of the channel type half PC slab having an opening and both ends of the opening, so that the bottom portion 58 is structurally stable and the edge strength of the peripheral edge of the opening is improved to improve the edge strength of the opening. It is possible to effectively prevent deformation or breakage.

In this embodiment, the channel member may be used 'C' shape, H-shaped steel, a-shaped steel and the like.

In addition, the connecting portion 70 of the present embodiment extends from the side wall portion 56 of the channel member, and the anchor member 72 is impregnated into the half PC slab members 32 and 34 and the channel member 50. The channel member 50 including the protruding anchor 74 extending from the upper surface portion 58 and having the opening at the factory and having the opening at the factory is welded with the anchor member 72 integrally welded to both ends of the mold. And partitioning the opening and the half PC slab member to form a gap block between the pair of channel members 50, and then placing a plurality of reinforcing bars and truss assembly reinforcement in the portion where the half PC slab member is formed and And then cured to produce a channel type half PC slab having an opening.

At this time, the concrete is not placed in the space for the opening in which the interval block is partitioned, so that the gap is formed between the plurality of half PC slab members 32 and 34 to form the opening.

Method of manufacturing a channel type half PC slab having an opening according to an embodiment of the present invention configured as described above,

a) mold fabrication and mold assembly for channeled half PC slab molding with openings;

b) attaching the anchor member 72 to the channel member sidewall portion 56;

c) disposing channel members 50 at both ends of the mold in the longitudinal direction so as to face the anchor members so as to face the anchor members;

d) providing an interval block for partitioning the opening and the half PC slab member between channel members disposed in the mold;

   Spacing blocks are provided by the number of openings to be formed.

e) installing a plurality of reinforcing bars and truss assembly reinforcing bars between the spacing blocks on which the half PC slab members are formed;

f) placing concrete in a portion where a plurality of rebar and truss assembly bars are installed in the mold;

   Concrete is poured so that the phase chords of the truss reinforcement are exposed.

g) After curing, the mold is dismantled to complete the fabrication of a channeled half PC slab having an opening, including a demolding step.

At this time, further comprising the step of attaching the protruding anchor to the upper surface of the channel member in step b).

In addition, the step between c) and d) further comprises the step of placing a plurality of steel wire in the entire length of the mold and tensioning.

In addition, the step e) or step f) further comprises the step of attaching the protruding anchor to the upper end surface of the half PC slab members 32, 34 facing each other to form an opening.

The method may further include cutting the steel wire disposed in the opening after step g).

Opening construction method of the building PC slab using the channel-type half PC slab having an opening according to an embodiment of the present invention configured as described above, the truss assembly reinforcing bar is assembled with the lower reinforcement, upper and lower chords and lattice material Prefabricating the one-way half PC slab 10 to the length and width that can be installed between the girder members and pre-fabricating the channel type half PC slab 30 having the opening to the same or similar length as the one-way half PC slab. And a channel-type half PC slab 30 having a one-way half PC slab 10 and an opening in the plurality of girder members 14 supported by the plurality of pillar members 12 and in one field And reinforcing the concrete on the upper surface of the channel type half PC slab 30 assembly having the half PC slab 10 and the opening.

In addition, in the present embodiment, the channel type half PC slab may further include a plurality of ribs.

First, at the factory, a channel type half PC slab having a plurality of one-way half PC slabs 10 and openings is manufactured and supplied to a construction site, and a girder member supported by the plurality of pillar members 12 to form a plurality of rows. The one-way half PC slab 10 is continuously provided on the 14 and the beam member, and the channel type half PC slab 30 having an opening is interposed between the side surfaces or between the one-way half PC slab 10.

Subsequently, reinforcement is placed on the upper surface of the channel type PC slab 30 having the plurality of one-way half PC slabs 10 and the openings, and then the concrete is poured and cured to complete the building PC slab in which the openings are formed.

At this time, the protruding anchor 74 extending from the upper surface 58 of the channel member 50 is impregnated into the concrete while integrally connecting the channel type PC slab 30 having an opening and concrete, and the gap between the protruding anchor and It is possible to prevent the concrete film 82 disposed on the opening 20 side from being lost to the concrete opening side.

As a result, the channel type half PC slab having an opening can be installed in a construction site in the state of being manufactured at the factory, so that a general one-way half PC slab and a general one-way half PC slab are not used in the field to form an opening in the PC slab. It is possible to provide a channel-type one-way PC slab having an opening that can be constructed in the same way and an opening construction method of a building PC slab using the same.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible to those skilled in the art. Will understand.

In addition, the channel-type half PC slab having an opening and the construction method of the opening of the building PC slab using the same, but described as an example, this is only illustrative, and the structure of the channel-type half PC slab having an opening and the building PC slab using the same In addition to the opening construction method, the channel type half PC slab having the opening of the present invention and the opening construction method of the building PC slab using the same can be used.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

10: half PC slab 12: pillar member
14 girder member 20 opening
30: channel type half PC slab with opening
32: first half PC slab member 34: second half PC slab member
50: channel member 52: first channel
54: second channel 56: side wall
57: upper part 58: bottom part
70: connection portion 72: anchor member
74: protruding anchor
80: finish portion 82: concrete film

Claims (5)

In the half PC slab installed in the girder member supported by the pillar member,
A plurality of half PC slab members disposed at intervals to form openings;
A channel member supporting a half PC slab member such that a plurality of the half PC slab members are spaced apart from each other; And
A connection part integrally formed with the channel member such that the channel member and the half PC slab member are integrally coupled;
The channel member,
A first channel connected simultaneously to one side of the plurality of half PC slab members spaced apart from each other; And
A second channel connected simultaneously to the other side of the plurality of half PC slab members spaced from each other,
The connecting portion,
An anchor member extending from the sidewall portion of the channel member and impregnated into the half PC slab member; And
It includes a protruding anchor extending from the upper surface portion of the channel member,
A channel type half PC slab having an opening, characterized in that for producing a channel type half PC slab having an opening at a factory and supplying it to the construction site. The method of claim 1, wherein the half PC slab member,
A first half PC slab member integrally connected to one side of the channel member; And
And a second half PC slab member spaced apart from the first half PC slab member, the second half PC slab member integrally connected to the other side of the channel member.
delete The method of claim 1,
And the first channel and the second channel have a length equal to or similar to the length of the half PC slab.
(a) pre-fabricating a one-way half PC slab in which a truss assembly reinforcing bar in which lower reinforcing bars, upper and lower chords and a lattice material are assembled are formed in a length and width that can be installed between the girder members;
(b) pre-fabricating a channel type half PC slab having the opening of any one of claims 1, 2 and 4 to the same to or similar length as the one-way half PC slab in (a);
(c) a channel type half PC having a one-way half PC slab in (a) and an opening of any one of claims 1, 2 and 4 in a plurality of girder members supported by a plurality of pillar members. Installing the slab on site; And
(d) reinforcing the upper surface after the step (c) and placing concrete;
The channel member,
A first channel connected simultaneously to one side of the plurality of half PC slab members spaced apart from each other; And
A second channel connected simultaneously to the other side of the plurality of half PC slab members spaced from each other,
The connecting portion,
An anchor member extending from the sidewall portion of the channel member and impregnated into the half PC slab member; And
It includes a protruding anchor extending from the upper surface portion of the channel member,
A method of constructing an opening of a building PC slab using a channel-type half PC slab having an opening, characterized by manufacturing a channel type half PC slab having an opening at a factory and supplying it to the construction site.

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