KR200423643Y1 - Connection structure of i-slab using plate - Google Patents

Abstract

The present invention mainly relates to the interlayer slabs of high-rise buildings such as apartments and buildings. In order to simplify the construction process and lower the construction cost, the interlayer slab is formed between the adjacent PC slabs in the formation of the interlayer slab by using the prefabricated slab. The present invention relates to an I-slab joint structure using a plate that easily strengthens the bonding strength between PC slabs by joining using steel plates at a construction site.

In the joint structure of the I-slab of the present invention, in the interlayer slab of a high-rise building, a joining recess 61 is formed at the edge of the lower surface, and a joining bolt 66 is embedded in the joining recess 61. ) PC slab 60, a plate 65 is formed in the construction site, the bolt 65 is formed with a bolt hole into which the joining bolt 66 of the adjacent PC slab 60 is inserted after installing the PC slab at a predetermined position, After inserting the joining bolt 66 of the PC slab 60 adjacent to the bolt hole of the plate 65, the nut 67 for fixing it, and after the nut 67 is fastened to the joining bolt 66 It is comprised from the mortar 68 filled in the joining recess 61.

Slab, PC Slab, Concrete, Truss, Junction, Plate, Bolt, Nut

Description

CONNECTION STRUCTURE OF I-SLAB USING PLATE}

1 is a cross-sectional view showing a half PC slab structure for a conventional slab;

2 is a longitudinal sectional view of a ceiling slab showing a state where a conventional half PC slab is installed on a wall;

3 is a perspective view showing the bonding state of two slim PC slab decks;

4 is a cross-sectional view of the I-slab showing the transverse bonding of the slim PC slab deck;

5 is a perspective view of the bonded state of the PC slab showing an embodiment of the I-slab joint structure using the plate of the present invention.

<Description of the symbols for the main parts of the drawings>

1: villa board or gypsum board 2: insulation

3: wire mesh 4: truss

5: concrete 10: half PC slab

12: Schirople 13: Wire Mesh

14: topping concrete

20: Wall 30: Slim PC Slab Deck

31: lower flange slab 32, 33: straight truss

34: Coupler 35: Rebar

40: plastic foam 41: hollow

45: upper rebar

60: PRECAST CONCRETE SLAB

61: joining recess 65: plate

66: bonding bolt 67: nut

68: mortar

The present invention mainly relates to the interlayer slabs of high-rise buildings such as apartments and buildings, and more particularly, in order to simplify the construction process and lower the construction cost, the adjacent slabs are formed in the formation of the interlayer slabs by using the prefabricated slab. The present invention relates to an I-slab joint structure using a plate that easily strengthens the bonding strength between PC slabs by joining between PC slabs using steel plates at a construction site.

One embodiment of the conventional PC slab is a plurality of villa board or gypsum board (1) installed on the bottom surface of the PC mold, as shown in Figure 1, adhesive on the upper surface of the villa board or gypsum board (1) Insulating material (2) glued by squirrel, wire mesh (3) installed on top of the heat insulating material (2), truss (4) installed on the wire mesh (3), and the truss (4) It is composed of concrete (5), which is poured to expose a portion. The conventional PC slab is a half PC slab having approximately half the thickness of the entire interlayer slab. The half PC slab of FIG. 1 is merely an example, and in a specific structure, a gypsum board (1), insulation (2), and wire The structure of the mesh 3 etc. can be variously changed.

The half PC slab is manufactured in a separate place and then brought into a building construction site such as an apartment and installed in a ceiling part. As shown in FIG. 2, the half PC slab 10 is placed over a wall 20 or a beam. Placing the swivel (12) between the truss (truss) 4 and the upper wire mesh 13 is installed and then topping (TOPPING) concrete 14 is poured on top to form a slab. The squirrel 12 is installed for reducing the weight of the slab and insulation and sound insulation.

Such a method of forming a ceiling slab by a half PC slab minimizes the reinforcement work at the construction site and eliminates the need for installing formwork and ridges, thereby significantly reducing construction air and saving construction costs.

The ceiling slab method as described above positions the longitudinal ends of the half PC slab 10 over a wall 20 or beam (not shown).

However, in the related art, since there was no interest in the bonding strength between the half PC slab 10, the half PC slab was merely placed on a wall or bow. In this case, the integrity between adjacent PC slabs is weak, which inevitably shortens the span between beams or walls.

If the span between beams or walls is short, the planar structure of the interior space of the building cannot be varied. Also, when remodeling later, there are restrictions on changing the planar structure. This is a problem that can not satisfy the needs of consumers with various tastes.

In order to solve this problem, the present inventors have one at an inner position of a predetermined distance from the side end of the lower flange slab 31, which is made thin in concrete, rebar, etc. in a separate manufacturing plant as shown in Figs. To develop a slim PC slab deck (30) formed by excavating a flat truss (32) and a pair of straight trusses (33) at regular intervals between them, and a flat truss of the adjacent slim PC slab deck (30) 32) has developed a joint structure to strengthen the joint strength by connecting the reinforcement (35) between.

The slim PC slab deck 30 has a relatively thin thickness compared to the overall slab thickness and is called a slim, and the straight trusses 32 and 33 are called straight trusses because the trusses are vertically erected.

A plastic foam 40 is disposed between the straight trusses 32 and 33 of the lower flange slab 31.

The plastic foam 40 has a plurality of hollows 41 formed therein. The hollows 41 have an octagonal shape and grooves 42 are formed on the bottom thereof. The groove 42 makes it possible to easily assemble the plastic foam 40 to the slim PC slab deck 30 in the manufacturing plant or construction site of the slim PC slab deck 30, and the plastic foam (40) when concrete is poured in construction. ) To prevent movement. Pipes or various cables may be disposed through the hollow 41.

On the longitudinal end side of each slim PC slab deck 30, an insertion hole-shaped coupler 34 is formed. Reinforcement is inserted into coupler 34 and mortar is injected around it to further enhance integrity between longitudinally adjacent slim PC slab decks 30.

After placing the upper reinforcing bar 45 on the slim PC slab deck 30 and the beam upper part to form an interlayer slab, concrete is poured, the upper flange slab 50 on the slim PC slab deck 30, and plastic A web 51 is poured between the laterally adjacent plastic foams 40 of the foam 40. The transverse cross section has an I-shaped cross section consisting of a lower flange slab 31, an upper flange slab 50, and a web 51 connecting therebetween, as indicated by reference I in FIG. 4.

The cross-sectional width and height of the lower flange slab 31 and the upper flange slab 50, and the cross-sectional width and height of the web 51 are selected to have the greatest strength mechanically. In the present invention, since the trusses 32 and 33 are installed, the width of the web 51 may have a width capable of forming a mechanical type I cross section.

Slabs having such cross sections have mechanically superior strength. The width of the web 51 can be adjusted by the size of the plastic foam 40. The slab according to the present invention is named I-slab because it has such a cross-section I cross.

Such I-slabs have stronger bond strengths between adjacent PC slab decks 30 than in the prior art, but at the construction site, it is inconvenient to connect the straight trusses 32 at both edges with reinforcing bars 35, There is a problem that the connection strength is insufficient because the connection between the 35 and the truss 32 is not firm.

The present invention has been devised to solve the above-mentioned problems of the prior art, and it is possible to increase the bonding strength between adjacent PC slabs to increase the span between beams or walls, and accordingly the planar structure of the interior space of the building. The present invention provides an I-slab joint structure that can be changed in various ways and that the planar structure can be easily changed in the future in case of remodeling.

In order to achieve the above object, the I-slab joint structure of the present invention is an interlayer slab of a high-rise building, in which a concave concavity is formed at an edge of a lower surface, and a spliced bolt is embedded in the concave concave, After installing the PC slab in a predetermined position at the construction site, the plate is formed with bolt holes into which the joining bolts of adjacent PC slabs are inserted, and then insert the joining bolts of the PC slab adjacent to the bolt holes of the plate and fix it. The nut, and the mortar is filled with the recess after the nut is fastened to the joint bolt.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

5 is a perspective view of the bonded state of the PC slab showing an embodiment of the I-slab joint structure using the plate of the present invention.

As shown in FIG. 5, the I-slab joint structure of the present invention is a structure for connecting two adjacent PC slabs 60 with a plate 65.

The PC slab 60 has a joining recess 61 formed at an edge of a lower surface thereof, and a joining bolt 66 is embedded in the joining recess 61. The joining recess 61 has a shape opened in the outward direction as shown in the drawing, and when the two PC slabs 60 are joined to each other, the joining recess 61 becomes a vertical groove having a thin depth.

The plate 65 is formed with bolt holes into which the joining bolts 66 of the PC slab 60 are inserted. The length between the two bolt holes is equal to the length between the joint bolt 66.

After inserting the joining bolt 66 of the PC slab 60 into the bolt hole of the plate 65, fasten the nut 67 to the joining bolt 66 and fix the nut 67 to the joining bolt ( After the fastening to 66), the mortar 68 is filled in the joining recess 61.

The I-slab joint structure using the plate of the present invention as described above acts as follows.

When manufacturing the PC slab 60 in a separate factory to form a joining recess 61 and embedding the joining bolt 66 (embed). And the PC slab 60 is carried to the construction site and installed on the wall or beam.

At the construction site, the plate 65 is installed on the joint bolt 66 protruding in the joint recess 61 between the adjacent PC slabs 60, and the nut 67 is fastened and fixed.

Then, the mortar 68 is filled in the joining recess 61.

In that state, after installing the plastic foam 40 as shown in Figures 3 and 4, the concrete is poured on top of the PC slab (60).

The I-slab joint structure of the present invention has a strong bonding strength between adjacent PC slabs 60 by the plate 65, and in the construction site, the connection work is completed by installing the plate 65 and filling the mortar. Joining work can be performed easily. In addition, since the adjacent PC slab 60 is strongly connected by the plate 65, the bonding strength becomes stronger than in the case of FIGS. 3 and 4.

If the bonding strength between the PC slab 60 is strong, it is possible to lengthen the span between the beams or walls so that the planar structure of the interior space of the building can be changed in various ways, thereby satisfying the needs of various consumers.

The I-slab joint structure of the present invention is applied not only to the slab structure in which the PC slab is placed on the wall or beam, but also to the flat plate system in which the PC slab is placed on the column without the wall or beam.

In this way, the I-slab joint structure of the present invention makes the bond strength between adjacent PC slabs stronger by the joining of the plates, so that the span between beams or walls can be lengthened, thereby increasing the planar structure of the interior space of the building. It can be changed in various ways, and in the case of remodeling in the future, the planar structure can be easily changed in various ways.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made within the spirit and scope of the present invention, and thus such changes or modifications are intended to be provided with the accompanying utility model. It will have to fall within the scope of registration claims.

Claims (1)

In the interlayer slab of a high-rise building, PC slab 60 having a joining recess 61 formed in the lower edge and a joining bolt 66 embedded in the joining recess 61, A plate 65 having bolt holes into which the joining bolts 66 of the adjacent PC slabs 60 are inserted, respectively, after the PC slab is installed at a predetermined position in a construction site; A nut 67 for fixing the joint bolt 66 of the PC slab 60 adjacent to the bolt hole of the plate 65 and then fixing the joint bolt 66; I-slab joint structure using a plate, characterized in that consisting of a mortar (68) is filled in the joining recess (61) after the nut (67) is fastened to the joining bolt (66).

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