KR102021120B1 - Half pc slab assembly with opening and construction method for opening of building using that - Google Patents

Abstract

The present invention relates to a half PC slab installed in a girder member supported by a column member. The half PC slab comprises: a first half PC slab body installed in the girder member; a second half PC slab body installed in the girder member; a beam member installed on one side of the first half PC slab body and the other side of the second half PC slab body; a plurality of deck plates installed in the beam member, maintaining an interval between a first half PC slab and a second half PC slab, and providing an opening portion; and a connection portion integrally formed in the beam member to enable the beam member and the first half PC slab body and the beam member and the second half PC slab body to be integrally coupled to each other.

Description

Half PC slab assembly with opening and construction method of building PC slab using same {HALF PC SLAB ASSEMBLY WITH OPENING AND CONSTRUCTION METHOD FOR OPENING OF BUILDING USING THAT}

The present invention relates to a half PC slab assembly having an opening and a building slab opening construction method using the same. More specifically, in forming the opening in the building PC slab, the construction of a separate RC structure for the opening in the field is not performed. Half PC slab assembly having openings manufactured at the factory without the same construction as in the case of general half PC slab, the half PC slab assembly having an opening to form an opening in the building PC slab and the opening of the building PC slab using the same It is about a construction method.

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 half PC slab assembly having an opening for solving the above problems, and to 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 half PC slab assembly with openings made in the factory even in the corresponding section, it is unnecessary to install the temporary materials such as copper bars and formwork, reinforcement and concrete placing, which are generated by the opening of the conventional RC method. Therefore, the purpose of this is to shorten the construction period.

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

The present invention is a half PC slab is installed on the girder member supported on the pillar member, the first half PC slab body is installed on the girder member; A second half PC slab body installed on the girder member; A beam member installed at one side of the first half PC slab body and the other side of the second half PC slab body; A plurality of deck plates installed on the beam member to maintain an interval between the first half PC slab and the second half PC slab and to provide an opening; And a connecting part integrally formed with the beam member such that the beam member, the first half PC slab body, and the beam member and the second half PC slab body are integrally coupled to each other, wherein the beam member is connected to the connection part. A first beam integrally coupled to the first half PC slab body and integrally connecting one side of the deck plate to form one surface of the opening; And a second beam integrally coupled to the second half PC slab main body by the connecting part and integrally connecting a plurality of the other sides of the deck plate to form the other surface of the opening, and the connecting part of the beam member An anchor member integrally formed with the side wall portion; And a protruding anchor extending upward from an upper surface of the beam member and having a concrete film spaced at an inner side thereof, and manufacturing a half PC slab assembly having a plurality of one-way half PC slabs at the factory and the openings. It is characterized in that the supply to the construction site.
In addition, the deck plate of the present invention, the panel member is installed between a plurality of the beam member; A first reinforcement supported by the column reinforcement installed in the panel member, the first reinforcing member being installed to maintain a distance from the panel member, and installed in a transverse direction of the panel member, the plurality of rebars being disposed to maintain a constant interval; A plurality of second rebars disposed at intervals to one side of each of the first rebars; A plurality of third rebars disposed to be spaced apart from each other on the first rebar; It is connected to maintain the gap between the first reinforcing bar and the second reinforcing bar, and is formed in a wavy shape to connect and maintain the gap between the first reinforcing bar and the third reinforcing bar, the first reinforcing bar, the second reinforcing bar A plurality of curved members connecting the panel member and connecting the first rebar, the third rebar and the panel member; And a plurality of fourth rebars installed in the longitudinal direction of the panel member to connect the plurality of first rebars.
In addition, the present invention, (a) pre-fabricated in the length and width that can be installed between the girder, one-way half PC slab is formed in the lower reinforcement, the upper and lower chords and the truss assembly reinforcement is assembled lattice material; (b) prefabricating a half PC slab assembly having the opening of claim 1 or 3 to the same length as the one-way half PC slab in (a); (c) on-site installing a half PC slab assembly having a one-way half PC slab in (a) and an opening of claim 1 or 3 in a plurality of girder members supported by a plurality of pillar members; And (d) reinforcing reinforcement and placing concrete on the upper surface after step (c), wherein one side of the one-way half PC slab and one-way half PC slab are connected by a connecting portion formed integrally with the beam member. The beam member is installed on the other side, the connecting portion, the anchor member formed integrally with the side wall portion of the beam member; And a protruding anchor extending upward from an upper surface of the beam member and having a concrete film spaced at an inner side thereof, and manufacturing a half PC slab assembly having a plurality of one-way half PC slabs at the factory and the openings. It is characterized in that the supply to the construction site.

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The half PC slab assembly having an opening according to the present invention, and the construction method of the building PC slab using the same, the construction of the half PC slab assembly having an opening in the building PC slab in which a plurality of half PC slab is constructed in succession. As it is provided by construction, separate RC construction method for openings is not required as before, thus saving time and cost for opening construction, improving construction and quality of slab, and shortening construction period. There is an advantage to this.

In addition, according to the present invention, since the opening of the half PC slab uses a pre-made deck plate, the half PC slab assembly having the opening can be easily manufactured, thereby reducing the unit cost of the half PC slab having the opening. have.

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

1 is a plan view illustrating a half PC slab assembly having an opening according to an embodiment of the present invention.
Figure 2 is a perspective view of the deck plate of the half PC slab assembly having an opening according to an embodiment of the present invention.
Figure 3 is a cross-sectional view of a half PC slab assembly having an opening according to an embodiment of the present invention.
Figure 4 is an enlarged view showing the installation structure of the half PC slab assembly 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 deck plate type one-way PC slab having an opening according to the present invention and a construction method thereof.

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 illustrating a half PC slab assembly having an opening according to an embodiment of the present invention, and FIG. 2 is a deck plate of a half PC slab assembly having an opening according to an embodiment of the present invention. 3 is a cross-sectional view showing a half PC slab assembly having an opening according to an embodiment of the present invention, Figure 4 is an installation structure of a half PC slab assembly having an opening according to an embodiment of the present invention Is an enlarged view.

1 to 4, the half PC slab assembly having an opening according to an embodiment of the present invention, the half PC slab 10 is installed in the girder member 14 supported by the pillar member 12 One side of the first half PC slab body 10a installed on the girder member 14, the second half PC slab body 10b installed on the girder member 14, and the first half PC slab body 10a installed on the girder member 14. And the beam member 50 provided on the other side of the second half PC slab body 10b and the beam member 50, between the first half PC slab 10 and the second half PC slab 10. A plurality of deck plates 30 providing the openings 20, the beam members 50, the first half PC slab body 10a, the beam members 50, and the second half PC slab body. It includes a connecting portion 70 formed integrally with the beam member 50 so that the 10b is integrally coupled.

The half PC slab assembly having an opening is arranged such that the first half PC slab body 10a and the second half PC slab body 10b are spaced apart from each other, and has one side surface of the first half PC slab body 10a. And a plurality of deck plates 30 are formed on the beam member 50 which is integrally formed on the other side of the second half PC slab body 10b, and the plurality of deck plates 30 are disposed to maintain a distance from each other. The opening 20 is formed.

The beam member 50 of this embodiment is integrally coupled to the first half PC slab body 10a by the connecting portion 70, and integrally connects one side of the plurality of deck plates 30 to one surface of the opening 20. The first beam 52 and the connecting portion 70 are integrally coupled to the second half PC slab body 10b, and the other side of the opening 20 is integrally connected to the other side of the plurality of deck plates 30. And a second beam 54 that forms a portion.

Therefore, the opening 20 of the present embodiment, one side and the other side is made of the first beam 52 and the second beam 54, the front and rear of the opening 20 is the rear end of the deck plate 30 and It is made by the front end.

The deck plate 30 is integrally connected to the upper surface of the first beam 52 and the upper surface of the second beam 54 by welding, and is shorter than that of the half PC slab 10. Since a pair of deck plates 30 made in length are installed in the first beam 52 and the second beam 54 so as to maintain a distance from each other, the first half PC slab main body 10a and the second half PC slab main body An opening 20 is formed in a square shape at the center of the half PC slab 10 composed of the 10b, the first beam 52, the second beam 54 and the pair of deck plates 30.

Here, the deck plate 30, three or more deck plates 30 may be installed, and when three deck plates 30 are installed it is possible to provide two openings 20, which is the present Since a person skilled in the art having the technical constitution of the present invention can be easily changed and practiced, specific drawings and descriptions of other embodiments will be omitted.

The deck plate 30 of this embodiment is supported by the panel member 32 provided between the plurality of beam members 50 and the column reinforcing bars 34a provided on the panel member 32, and the panel member ( 32 and a first reinforcing bar 34 and a plurality of first reinforcing bars 34 and horizontally installed in the transverse direction of the panel member 32 and arranged at regular intervals, and one side of each of the first reinforcing bars 34. A plurality of second rebars 36 disposed to be spaced apart from each other, a plurality of third rebars 37 disposed to maintain a distance to the other side of each of the first rebars 34, and a first reinforcing bar 34. It is connected to maintain the spacing between the second reinforcing bars 36, and is formed in a wavy shape to connect and maintain the spacing between the first reinforcing bar 34 and the third reinforcing bar 37, the first reinforcing bars 34, A plurality of curved members 39 connecting the two reinforcing bars 36 and the panel member 32, and connecting the first reinforcing bars 34, the third reinforcing bars 37 and the panel member 32; One plurality are installed in the longitudinal direction of the reinforcement panel member to engage the 34 (32) of claim 4 includes a reinforcement (38).

Therefore, when the concrete mortar is poured on the half PC slab 10 to form the slab, the first reinforcing bar 34 to the fourth reinforcing bar 38 and the curved member 39 are impregnated into the concrete mortar to improve the slab. Is achieved.

The first beam 52 and the second beam 54 of the present embodiment are connected to the side wall portion 57 which forms the side surface of the opening portion 20 and the upper side of the side wall portion 57 to form an upper surface of the beam member 50. The upper surface portion 58 and the lower portion of the side wall portion 57, which is connected to the bottom surface portion 59 to form a bottom surface of the beam member 50 to form a cross-sectional shape 'H' shape.

In addition, the beam member 50 of the present embodiment may be used H-beam, K-beam, a-beam, etc., which can be easily changed by those skilled in the art to recognize the technical configuration of the present invention for other embodiments Specific drawings or descriptions will be omitted.

When the half PC slab assembly 40 is manufactured, concrete is inserted into the outer wall of the side wall portion 57 of the first beam 52 so that the anchor member 72 is formed of the first half PC slab body 10a or the second half PC. The end of the first half PC slab body 10a or the second half PC slab body 10b is inserted at an interval between the upper surface portion 58 and the bottom portion 59 while being impregnated and integrated into the slab body 10b. While the first half PC slab body 10a or the second half PC slab body 10b and the beam member 50 are more firmly connected.

Since the connection part 70 of the present embodiment includes an anchor member 72 integrally formed on the side wall portion 57 of the beam member 50, the first half PC slab body 10a or the second half PC slab body ( When the end of 10b) is inserted and cured at an interval between the upper surface portion 58 and the bottom surface portion 59, the anchor member 72 is the first half PC slab body 10a or the second half PC slab body 10b. While impregnated inside, the first half PC slab body 10a or the second half PC slab 10 and the beam member 50 can be more firmly connected.

In addition, the present embodiment, the finishing member 80 is provided on the beam member 50, and prevents the concrete that is cast in the field on the upper surface of the half PC slab 10 and the half PC slab assembly is lost to the opening 20 side. Since it further includes the concrete when the site is poured by curing the concrete can be prevented from being lost to the opening portion 20 side by the finish portion (80).

The finishing portion 80 extends upward from the upper surface portion 58 and extends along the first beam 52, the second beam 54, and the deck plate 30 to have a planar shape of 'ㅁ'. Since the concrete membrane 82 includes the half PC slab 10 and the half PC slab assembly, the concrete can be prevented from being lost to the opening 20 when concrete is placed in the field.

In addition, since the connection part 70 of the present embodiment further includes a protruding anchor 74 extending upward from the upper surface part 58 of the beam member 50 and having a space between the concrete film 82. When the on-site concrete is poured, the projecting anchor 74 is impregnated into the concrete to be integrally coupled to prevent the components of the building PC slab from being separated from each other.

The embodiment may further include a plurality of ribs 16 in the half PC slab 10 assembly having openings.

Looking at the opening construction method of the building PC slab using a half PC slab assembly having an opening according to an embodiment of the present invention configured as described above are as follows.

Opening construction method of the building PC slab using a half PC slab assembly having an opening according to an embodiment of the present invention, the one-way half PC slab is formed in the truss assembly reinforcing bar reinforcement, upper and lower chords and lattice material ( 10) prefabricating the length and width that can be installed between the girders, and prefabricating the half PC slab 10 assembly having an opening 20 to the same length as the one-way half PC slab 10; And installing a half PC slab 10 assembly having a one-way half PC slab 10 and an opening 20 in the plurality of girder members 14 supported by the plurality of pillar members 12. And reinforcing the concrete on the upper surface of the half PC slab 10 and the half PC slab 10 assembly.

First, a half PC slab assembly having a plurality of one-way half PC slabs 10 and openings 20 are manufactured at a factory, and supplied to a construction site, and supported by a plurality of pillar members 12 to form a plurality of rows. The one-way half PC slab 10 is continuously installed between the girder members 14, and the half PC slab 10 assembly having the opening 20 is interposed between or on one side of the one-way half PC slab 10.

Subsequently, the reinforcement is placed on the upper surface of the assembly of the half PC slab 10 having the plurality of one-way half PC slabs 10 and the openings 20, and then the concrete is poured and cured to form the openings 20. Complete the PC slab.

At this time, the protruding anchor 74 extending from the upper surface 58 of the beam member 50 is impregnated into the concrete while integrally connecting the half PC slab 10 assembly and the concrete, and the gap with the protruding anchor 74 It is possible to prevent the concrete from being lost to the opening portion 20 by the concrete membrane 82 disposed on the opening portion 20 side.

Thus, in forming the openings in the building PC slab, the construction of the building PC by constructing the half PC slab assembly having the openings made in the factory in the same manner as the general half PC slab without performing the construction of a separate RC structure for the opening in the field. It is possible to provide a half PC slab assembly having an opening capable of forming an opening in a slab, and a method of constructing an opening 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 deck plate-type one-way PC slab having an opening and a construction method thereof have been described as an example, but this is merely exemplary, and the present invention also applies to other products other than the deck plate type one-way PC slab having an opening and a construction method thereof. Of PC slab and its construction method can be used.

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

10: half PC slab 10a: the first half PC slab body
10b: second half PC slab body 12: pillar member
14 girder member 16 rib
30: deck plate 32: panel member
34: first rebar 36: second rebar
37: third rebar 38: fourth rebar
39: curved member 40: half PC slab assembly
50 beam member 52 first beam
54: second beam 57: side wall
58: top part 59: bottom part
70: connection portion 72: anchor member
74: protrusion anchor 80: finish
82: concrete curtain

Claims (5)

In the half PC slab installed in the girder member supported by the pillar member,
A first half PC slab body installed at the girder member;
A second half PC slab body installed on the girder member;
A beam member installed at one side of the first half PC slab body and the other side of the second half PC slab body;
A plurality of deck plates installed on the beam member to maintain an interval between the first half PC slab and the second half PC slab and to provide an opening; And
And a connection part integrally formed with the beam member such that the beam member and the first half PC slab body and the beam member and the second half PC slab body are integrally coupled.
The beam member,
A first beam integrally coupled to the first half PC slab body by the connection part and integrally connecting one side of the plurality of deck plates to form one surface of the opening; And
And a second beam integrally coupled to the second half PC slab body by the connection part and integrally connecting a plurality of the other side of the deck plate to form the other surface of the opening,
The connecting portion,
An anchor member integrally formed with the side wall portion of the beam member; And
A protruding anchor extending upward from an upper surface of the beam member and having a concrete membrane disposed thereon at intervals;
A half PC slab assembly having a plurality of one-way half PC slab at the factory and an opening, characterized in that for producing a half PC slab assembly having the opening and supplying it to the construction site.
delete The method of claim 1, wherein the deck plate,
A panel member installed between a plurality of beam members;
A first reinforcement supported by the column reinforcement installed in the panel member, the first reinforcing member being installed to maintain a distance from the panel member, and installed in a transverse direction of the panel member, the plurality of rebars being disposed to maintain a constant interval;
A plurality of second rebars disposed at intervals to one side of each of the first rebars;
A plurality of third rebars disposed to be spaced apart from each other on the first rebar;
It is connected to maintain the gap between the first reinforcing bar and the second reinforcing bar, and is formed in a wavy shape to connect and maintain the gap between the first reinforcing bar and the third reinforcing bar, the first reinforcing bar, the second reinforcing bar A plurality of curved members connecting the panel member and connecting the first rebar, the third rebar and the panel member; And
A half PC slab assembly having an opening, characterized in that it comprises a plurality of fourth reinforcing bars installed in the longitudinal direction of the panel member to connect the plurality of first reinforcing bars.
delete (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 is formed in a length and width that can be installed between the girder;
(b) prefabricating a half PC slab assembly having the opening of claim 1 or 3 to the same length as the one-way half PC slab in (a);
(c) on-site installing a half PC slab assembly having a one-way half PC slab in (a) and an opening of claim 1 or 3 in a plurality of girder members supported by a plurality of pillar members; And
(d) reinforcing the upper surface after the step (c) and placing concrete;
The beam member is installed on one side of the one-way half PC slab and the other side of the one-way half PC slab by a connecting portion formed integrally with the beam member.
The connecting portion,
An anchor member integrally formed with the side wall portion of the beam member; And
A protruding anchor extending upward from an upper surface of the beam member and having a concrete membrane disposed thereon at intervals;
A method of constructing an opening of a building PC slab using a half PC slab assembly having a plurality of one-way half PC slabs and an opening, the half PC slab assembly having the openings and being supplied to a construction site.

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