KR20140036458A - Prefab floor system of modular unit system - Google Patents

Abstract

The present invention relates to a prefab floor system of a modular building and, more specifically, to a prefab floor system of a modular building capable of reducing construction period and construction error and reducing concrete weight and floor crashing sound, such as vibration and noise. According to a preferable embodiment of the present invention, the prefab floor system of a modular building is formed between lower beams in a modular unit composed of a column and a beam, and includes: a truss bar reinforcing deck which is installed between lower beams, have a floating structure by having a space part under concrete, and has a base plate and a truss bar installed on the base; a wire mesh arranged on the truss bar reinforcing deck; and a concrete casted on the truss bar reinforcing deck between the lower beams.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a prefab floor system for a modular building,

The present invention relates to a floor system of a modular building, and more particularly, to a floor system of a modular building, which can shorten a construction period, reduce a construction error, reduce a floor impact sound such as vibration and noise, To a floor system of a modular building.

"Steel Frame Modular Unit Housing" is a technology that systemizes high-quality housing to ensure the recycling of resources, while securing a certain quality and supplying it to many customers. In order to achieve this, a box-type steel frame with a high degree of completeness is required to be produced in the factory, and a technique is required to be completed in a short time by a minimum process in the field.

BACKGROUND ART [0002] As a background technology to be a background of the present invention, there is a patent registration No. 0947297 entitled "Architectural modular unit in which bottom concrete is integrally formed"

5, the column, the ceiling beam, and the floor beam are assembled to form the skeleton of the modular unit, the modular unit is placed on the form support plate, And a slab insulator 3 are sequentially stacked and then a reinforcing bar 4 is installed and a concrete 6 is laid thereon, thereby providing a slab insulator and a bottom concrete integrally formed at the bottom.

However, in the above background art, the slab insulation and the floor concrete are integrated, but the weight of the unit is increased due to excessive reinforcement amount and concrete usage amount, It is difficult to reduce the interlayer noise because of the complexity of the manufacturing process of the bottom plate due to the construction, and the air is lengthened and the cost is increased.

Patent Registration No. 0947297 "Architectural modular unit in which floor concrete is integrally formed"

In the present invention, since the floor system constituted between the lower beams of the modular unit is prefabricated in a form in which the cushioning material is installed therein, it is possible to omit the formwork installation and the reinforcement process in the field, thereby shortening the construction period and reducing the construction error And it is an object of the present invention to provide a floor system of a modular building capable of reducing floor impact sound and concrete weight such as vibration and noise.

A prefab floor system of a modular building according to a preferred embodiment of the present invention is a floor system constructed between a lower beam in a modular unit comprising a column and a beam, A truss muscle strengthening deck which is provided with a base plate and a truss root installed on an upper portion of the base plate; A wire mesh disposed on an upper portion of the truss muscle-reinforcing deck; And a concrete placed on an upper portion of the truss muscle strengthening deck between the lower beams.

At this time, the truss muscle strengthening deck comprises: a coupling root formed by bending a circular wire to form a triangular bent portion at regular intervals and being disposed at a predetermined interval on an upper portion of the base plate; And a truss root consisting of an upper and lower lattice connecting the upper and lower sides and a lattice root connecting the upper and lower sides of the upper and lower legs. The truss muscle is orthogonal to the connecting muscle, And the lower portion may be spaced apart from the upper portion of the base plate at regular intervals.

Further, a cushioning material may be further provided between the truss roots of the truss muscle-strengthening deck and the truss roots and embedded in the concrete.

Further, the base plate may be composed of a steel plate or a concrete plate.

It is also possible to use a wet Ondol layer consisting of a lacquer, an insulation, an excel pipe, a finishing mortar and a finishing material, or a lacquer, an insulating material, a particle board, a fiber reinforced cement board, a dry hot water panel and a finishing material It is possible to further constitute the dry Ondol layer.

The prefab floor system of the modular building according to the present invention can prefabricate a floor system formed between the lower beams of the modular unit in a form in which the cushioning material is installed, The construction period can be shortened, the construction error can be reduced, and the floor impact sound such as vibration and noise and the concrete weight can be effectively reduced.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention, Shall not be construed as limiting.
1 is a perspective view of a modular unit to which the prefab floor system of the present invention is applied.
2 is a cross-sectional view of the prefab floor system of the present invention.
3 is an enlarged cross-sectional view of one embodiment of the truss muscle-strengthening deck 10 of the present invention.
4 is a cross-sectional view of an embodiment in which the ondol layer is additionally formed in the present invention.
5 is a cross-sectional view of a floor concrete of an architectural modular unit in which a conventional floor concrete is integrally formed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

Hereinafter, the technical structure of the present invention will be described in detail with reference to the preferred embodiments.

1 is a perspective view of a modular unit to which the prefab floor system of the present invention is applied.

As shown in FIG. 1, the modular unit 100 for forming a modular building comprises pillars 120 disposed at four corners, pillars 130 arranged at four sides of the upper and lower sides, respectively, And a bottom system 110 is formed between the lower beams. Although the beam 130 is illustrated as being coupled to the column 120 using a separate connection hardware, it is typical that the beam 130 is directly coupled to the column 120. The present invention is not limited to the coupling structure of the column 120 and the beam 130. [

The bottom plate of the existing modular unit was constructed by placing the modular unit on the formwork support plate, placing the form plate and the rebar from the bottom of the mold, and then pouring the concrete. However, because the concrete is installed on the entire height of the lower beam 130, the weight of the modular unit is increased due to excessive amount of reinforcement and concrete used, and since the ondol layer needs to be installed on site, .

 The truss muscle-strengthening deck 10 is configured to be supported by a floor structure that is floated between the lower beams 130, and the floor system 110 constructed between the lower beams 130 of the modular unit 100, The wire mesh 20 and the concrete 40 are installed on the upper portion of the reinforcing deck 10 so that a separate formwork for installing the concrete 40 and the reinforcing steel reinforcing process can be omitted, A cushioning material 30 is provided between the truss roots constituting the reinforcing deck 10 to reduce the weight of the floor system 110 itself and to provide a space in which an air layer is formed below the truss- (S) to constitute a floating floor structure to reduce the floor impact sound.

FIG. 2 is a cross-sectional view of the prefab floor system of the present invention, and FIG. 3 is an enlarged cross-sectional view of one embodiment of a truss muscle-strengthening deck of the present invention.

As shown in FIG. 2, the truss-muscle-strengthening deck 10 is formed between the lower beams 130, and is spaced apart from the lower beams 130 so as to form a space S therebetween.

The formation of the space portion S in this manner is to reduce the floor impact noise to reduce the interlayer noise and to enhance the heat insulating effect. Further, since the amount of concrete pouring and the amount of reinforcement can be reduced by forming the space portion S, the floor system 110 can be made lighter, and weight reduction due to weight reduction can be achieved. can do.

The truss muscle-strengthening deck 10 is formed by integrating the truss muscles 12 at the upper portion of the base plate 11 and the base plate 11 and does not limit the shape of the truss muscles 12 to a great extent. That is, the truss muscles are not limited to the shape of the specific truss muscles according to various shapes such as the Kaiser, the omnia, the KH, and the MT. Although the base plate 11 is shown as a galvanized steel sheet in the figure, a concrete plate may be used. That is, in the present invention, the truss-muscle reinforcing deck 10 may be reinforced by the truss roots 12, and the material of the base plate is not particularly limited, such as a steel plate or a concrete plate.

3, a truss muscle-strengthening deck 10 according to an embodiment of the present invention includes a truss 12 and a truss muscle 12 orthogonally coupled to a truss muscle 12 at an upper portion of a base plate 11, 13).

The truss root 12 is composed of an upper vicinity 12a and a lower vicinity 12b which are arranged in parallel to the upper and lower parts and a lattice root 12c connecting the upper and lower parts 12a and 12b.

The connecting rods 13 are formed by bending a circular wire and forming a triangular bent portion 13a at regular intervals, and are formed by welding to the upper portion of the base plate 11 at regular intervals.

The coupling between the coupling root 13 and the truss root 12 is such that the top 12a of the truss root 12 is perpendicular to the coupling root 13 at the inner edge of the bend 13a of the coupling root 13, (13). At this time, the lower vicinity (13b) of the truss rope (12) is spaced apart from the upper part of the galvanized steel plate (10) at a predetermined interval, so that the connection with the concrete (40) is further strengthened.

As described above, since the truss-muscle-strengthening deck 10 can be used as a mold for the truss-muscle-strengthening deck 10 itself, it is not necessary to provide a mold separately and the reinforcement can be omitted, , Waste materials are not generated due to mold removal and the like, which is environmentally friendly. Further, by using the truss roots 12, the distance between the roots can be kept constant, and a floor system of uniform quality can be formed.

In addition, the cushioning material 30 can be additionally provided between the truss muscles 12 and the truss muscles 12 of the truss-muscle-strengthening deck 10.

2, the cushioning material 30 is formed between the truss roots 12 and the truss roots 12 and between the base plate 11 and the wire mesh 20, To be purchased.

The cushioning material 30 is installed to reduce the amount of concrete, heat insulation, and reduce floor impact sound. Various known cushioning materials may be used depending on the application such as EPS (Expanded Polystyrene) and polyurethane foam. In the case of Neopole (a product name of EPS-based high efficiency insulation material produced by BASF), which is a kind of EPS-based insulation material, excellent energy saving effect can be obtained even within a permissible thickness due to the modular structure having excellent heat insulation property and limited thickness. In addition, since the thickness can be minimized, the thickness of the floor system itself can be reduced.

The wire mesh 40 is installed on the upper portion of the truss reinforcement deck 10 and is installed for the purpose of preventing cracks after the concrete 40 is laid.

A wet or dry Ondol layer may be additionally formed on the upper part of the floor system 110 constructed as described above and may be manufactured in advance in a factory.

4 is a cross-sectional view of an embodiment in which the ondol layer is additionally formed in the present invention.

The wet Ondol layer 200a may be additionally provided on the upper portion of the concrete 40 or the dry Ondol layer 200b may be further constituted.

4A is a cross-sectional view of an embodiment in which the wet-type Ondol layer 200a is additionally constructed.

4A, the wet Ondol layer 200a is composed of a rocker 230, a heat insulating material 240, an excel pipe 250, a finishing mortar 260 and a finishing material 280 in order from the bottom.

The rocker 230 is formed on the upper portion of the concrete 40, and is formed on the upper portion of the concrete 40 after the concrete is sufficiently cured, and functions as a sound absorbing material.

Rock wool is an artificial mineral fiber produced by a factory using rock as a raw material. It is an insulation material with sound absorption and heat insulation effect. It is excellent in fire resistance because it is inorganic and has a low thermal conductivity and a sound absorption coefficient ) Is high, so that it is widely used as a heat insulating material and a sound absorbing material, and is also used as a high temperature insulating material.

A heat insulating material 240 is formed on the upper part of the rocker 230.

The heat insulating material 240 is configured for heat insulation. Various known cushioning materials may be used depending on the application such as EPS (Expanded Polystyrene) and polyurethane foam. In the case of Neopole (a product name of EPS-based high efficiency insulation material produced by BASF), which is a kind of EPS-based insulation material, excellent energy saving effect can be obtained even within a permissible thickness due to the modular structure having excellent heat insulation property and limited thickness. In addition, since the thickness can be minimized, the thickness of the floor system itself can be reduced.

The excel pipe 250 is formed on the upper part of the heat insulating material 240. The heat exchanger 250 is a pipe for heating and is uniformly distributed at an upper portion of the heat insulating material 240 at a predetermined interval to uniformly heat the heat. By the heat insulating material 240 formed at the lower portion, thermal diffusion to the lower portion is prevented, Increase.

The finishing mortar 260 is configured for finishing the upper portion of the excel pipe 250 and functions to secure the elcel pipe 250 and protect it from external impact.

After completion of the finishing mortar 260, a finishing material 280 is formed on the upper part.

4B is a cross-sectional view of an embodiment in which the dry Ondol layer 200b is additionally formed.

4b, the dry Ondol layer 200b includes, in order from the bottom, the rocker 230, the heat insulating material 240, the particle board 250a, the fiber-reinforced cement board 260a, the dry hot water panel 270a, And a finishing material 280.

The rocker 230 and the heat insulating material 240 are formed on the concrete 40 in the same manner as the wet Ondol layer 200a.

A particle board 250a is formed on the upper part of the heat insulating material 240.

The Particle Board is a processed material made by cutting wood waste by using wood as a raw material, crushing the remaining waste into small pieces, and mixing the adhesive with high temperature and high pressure. It can compensate for the disadvantages of wood logs, can absorb sound well, can vary in size and shape, and is efficient and economical in terms of recycling the waste residues generated in the processing of various logs. Unlike the wet heating method, since the dry hot water panel 270a is formed on the upper part, it is configured to effectively double the sound absorbing function.

A fiber-reinforced cement board 260a is formed on the particle board 250a.

The fiber-reinforced cement board 260a is formed on the particle board 250a and used as a finishing material to improve the water resistance and fire resistance performance of the particle board 250a.

Fiber reinforced cement board (CRC board) is a product produced by mixing natural pulp, silk, silica, and additives with water and pressing it after curing process. It is excellent in water resistance, fire resistance and car sound .

A dry hot water panel 270a is formed on the fiber-reinforced cement board 260a.

Since the dry hot water panel 270a is for heating and the dry hot water panel 270a formed in a predetermined size is laid on the upper part of the fiber reinforced cement board 260a, the construction is very easy, It is possible.

And a finish material 280 is formed on the upper part of the dry hot water panel 270a.

As described in detail above, the prefab floor system of the modular building according to the present invention prefabricates a floor system formed between the lower beams of the modular unit in a form in which the cushioning material is installed inside, The construction time can be shortened, the construction error can be reduced, and the floor impact sound such as vibration and noise and the concrete weight can be effectively reduced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

10: truss muscle strengthening deck 11: base plate
12: truss root 13: joining root
13a: Bending section 20: Wire mesh
30: Insulation material 40: Concrete
100: Modular unit 110: Floor system
120: column 130: beam
200a: wet Ondol layer 200b: dry Ondol layer
230: Loop 240: Insulation
250: Excel pipe 250a: Particle board
260: Finishing mortar 260a: Fiber reinforced cement board
270a: Dry hot water panel 280: Finishing material

Claims (7)

In a floor system (110) constructed between a modular unit (100) comprising a column (120) and a beam (130) and a lower beam (130)
A truss reinforcement is formed between the lower beam 130 with a floating bottom structure by forming a space S at the lower part, and comprising a base plate 11 and truss roots 12 installed on the base plate 11. Deck 10;
Prefabricated flooring system of a modular building, characterized in that consisting of; concrete (40) placed on top of the truss muscle reinforcement deck (10) between the lower beam (130). The method according to claim 1,
Prefabricated flooring system of a modular building, characterized in that the wire mesh 20 is further configured on top of the truss root reinforcement deck (10). The method according to claim 1,
Truss muscle reinforcement deck (10),
A bent portion 13a having a triangular shape at regular intervals by bending circular iron wires, the coupling root 13 being coupled to the upper portion of the base plate 11 at a predetermined interval;
It is composed of a truss muscle 12 consisting of a top muscle 12a and a lower muscle 12b and a lattice muscle 12c that connects the upper and lower muscles 12a and 12b disposed in parallel with the upper and lower portions.
The upper root 12a is engaged with the engaging root 13 at the inner edge of the bent portion 13a of the engaging muscle 13 so that the truss root 12 is perpendicular to the engaging muscle 13, and the lower muscle 13b is A prefabricated flooring system of a modular building, characterized in that configured to be spaced apart from the upper portion of the base plate (11) at a predetermined interval. The method according to claim 1,
Prefabricated modular building, characterized in that between the truss 12 and the truss 12 of the truss reinforcement deck 10, the cushioning material 30 is additionally installed to be embedded in the concrete 40 Floor system. The method according to claim 1,
Base plate 11 is a prefabricated floor system of a modular building, characterized in that consisting of a steel sheet or concrete plate. The method according to any one of claims 1 to 5,
On top of concrete 40,
Rock wool 230, the heat insulating material 240 configured on the top of the rock wool 230, the Excel pipe 250 configured on the top of the heat insulating material 240, the finishing mortar configured for finishing on the top of the Excel pipe 250 ( 260) and a wet ondol layer (200a) consisting of a finish (280) formed on top of the finishing mortar (260) is a prefabricated flooring system of a modular building further comprising. The method according to any one of claims 1 to 5,
On top of concrete 40,
Rock wool 230, the heat insulating material 240 is formed on the top of the rock wool 230, the particle board 250a is configured on the top of the heat insulating material 240, the fiber reinforced cement board 260a is formed on the top of the particle board 250a ), Prefabricated flooring system of modular building, characterized in that the dry ondol layer (200b) consisting of a dry hot water panel (270a) and the finishing material 280 is configured on top of the fiber-reinforced cement board (260a) .

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