KR101440556B1 - Floor structure of modular building - Google Patents

Abstract

The present invention relates to a bottom plate structure used in a modular building, comprising: a dowel-type sound-absorbing member installed at a lower portion of the bottom plate structure to form the bottom plate structure and having a plurality of concave-convex portions; A reinforcing steel reinforced by a recessed portion of the dough and sound absorbing member; And a concrete member laid on an upper surface of the form absorbing member.
In the bottom plate structure of the modular building according to an embodiment of the present invention, the cross-sectional shape of the concrete member is formed in a shape having irregularities, thereby improving the structural stability and the floor impact sound blocking performance while reducing the weight of the concrete member. There is an effect that can be.

Description

[0001] FLOOR STRUCTURE OF MODULAR BUILDING [0002]

The present invention relates to a bottom plate structure of a modular building, and more particularly to a bottom plate structure of a modular building which improves structural stability and floor impact sound blocking performance while reducing the weight of concrete members.

In general, Modular Construction is a method of assembling and assembling a three-dimensional box-type module unit manufactured and assembled at the factory to the site. The module unit includes electrical and mechanical equipment, interior and exterior materials including windows, flooring, ceiling materials and the like. More than 90% of the buildings are completed at the factory.

The modular construction using modular construction method is completed by assembling each module unit manufactured at the factory in the field up and down, back and forth, left and right. Also, the module units can be manufactured in the same shape and size, and can be assembled and assembled.

Such a modular building has been widely applied to various types of buildings in recent years because it has the effect of improving the quality through factory production, facilitating assembly and disassembly, and thus reducing costs by shortening the time required for site construction.

Systems that make up modular buildings can include structural systems, floor systems, wall systems, ceiling systems, toilet systems, electrical and plant systems, and the most important part is the floor system. Generally, the bottom plate system is constructed by constructing the frame first, then laying the bottom plate with concrete or installing the joist and laying plywood on it.

Generally, in the case of Korea, which is mainly used for sitting style, it is sensitive to vibration or sounding of the bottom plate. Therefore, the bottom plate of the modular building is mostly used wet floor with concrete instead of dry bottom.

Conventional methods for constructing concrete decks of modular buildings include installing molds and columns, installing concrete decks on concrete decks, installing a deck plate on top of the floor beams, A method of curing concrete by pouring it on the top, installing a thin precast concrete (PC) bottom plate on the top of the bottom beam, placing reinforcing steel on top of it, and then putting topping concrete on site A half-slab method is used.

The Korean Building Standard Act proposes a standard floor structure to reduce floor impact noise. Therefore, a concrete slab with a thickness of 150 ~ 180 mm is generally used. In this case, there is a problem that the weight of the entire module unit increases as the weight of the bottom plate increases due to an increase in the amount of concrete used.

In addition, there is a problem in that it is difficult to carry and install the module, and the size of the frame structure for supporting the slab is increased, thereby deteriorating the workability and increasing the construction cost.

Korean Patent Registration No. 0947297 discloses a method for installing a bottom plate in which a work such as a mold is installed, concrete is poured, a process of removing a building such as a mold is required after curing, There is a problem in that the weight of the battery pack becomes excessive.

The present invention is realized by recognizing at least any one of the requirements or problems of the conventional bottom floor structure of the modular construction.

As one aspect, the present invention aims to provide a modular building bottom plate structure that improves structural stability and floor impact sound blocking performance while reducing the weight of concrete members in modular construction.

Another object of the present invention is to provide a bottom plate structure of a modular building having a concave-convex shape of a concrete member and a sound-absorbing member to improve the floor impact sound blocking performance and the integrity of the concrete member and the sound- .

Another object of the present invention is to provide a bottom plate structure of a modular building which is easy to install by using a sound absorbing member which serves also as a mold for the sound absorbing member.

In accordance with one aspect of the present invention, there is provided a floor plate structure for use in a modular building, the floor plate structure comprising: a bottom plate structure provided below the bottom plate structure to form the bottom plate structure; A sound absorbing member; A reinforcing steel reinforced by a recessed portion of the dough and sound absorbing member; And a concrete member laid on an upper surface of the form absorbing member.

Preferably, the dowel-like sound-absorbing member may be provided so that a plurality of unit members are combined and constituted.

Also, preferably, the unit member may be provided with a coupling step for coupling with the adjacent unit member.

Preferably, the unit member is provided with two or more unit members having uneven portions at different intervals, so that it is possible to adjust the spacing of the recessed portion to which the reinforcing bar is laid.

Also, preferably, the form-and-space sound-absorbing member is made of a porous material so as to improve the integrity with the concrete member.

Preferably, the material of the form-use sound-absorbing member is made of compressed styrofoam or vibration-proof rubber.

Further, preferably, the concave-convex portion may be provided so as to be inclined in the yaw direction side to connect the concave portion and the convex portion so as to improve the integrity with the concrete member.

In accordance with one aspect of the present invention, there is provided a method of manufacturing a bottom plate structure for use in a modular building, the method comprising the steps of: mounting a dowel and a sound absorbing member on a lower surface of a frame structure; A step of placing reinforcing bars, and a step of forming concrete members by placing and curing concrete in an inner space portion formed by the mold and sound-absorbing members disposed at the lower portion of the bottom plate structure.

According to one embodiment of the present invention as described above, in the modular construction, by making the shape of the cross-section of the concrete member into a shape having concavo-convex shape, the structural stability and the floor impact sound blocking performance can be improved while reducing the weight of the concrete member There is an effect.

According to an embodiment of the present invention, the shape of the cross section of the concrete member and the sound absorbing member is formed into a concave-convex shape, thereby improving the floor impact sound blocking performance and the integrity of the concrete member and the sound absorbing member.

According to an embodiment of the present invention, by using the sound absorbing material for both the form and the duplex structure, it is possible to omit the step of removing the form at the time of manufacturing the bottom plate structure, thereby simplifying the construction process.

According to an embodiment of the present invention, a sound absorbing member can be used as a dowel structure that can be used for a bottom plate structure having various sizes by combining a plurality of unit members together with the dowel- have.

Further, according to the embodiment of the present invention, since the form-inserting sound-absorbing member is constituted by a plurality of unit members, it is possible to easily carry the form-and-sound-absorbing member to the construction site.

According to an embodiment of the present invention, since the width of the concave portion to which the reinforcing bars are arranged can be changed by providing two or more unit members having the concave-convex portions at different intervals, the size of the stress applied to the bottom plate structure It is possible to control the amount of reinforcement of the reinforcing bars.

According to an embodiment of the present invention, the sound absorbing member is made of a porous material so that the integrity of the concrete member can be improved.

1 is a perspective view of a bottom plate structure used in a conventional modular building.
FIG. 2 is a perspective view of a bottom plate structure of a modular drawer in accordance with an embodiment of the present invention. FIG.
3 is a perspective view showing a state in which a dowel and a sound absorbing member according to an embodiment of the present invention are installed.
FIG. 4 is a perspective view of a rebar according to an embodiment of the present invention; FIG.
FIG. 5 is a perspective view of a concrete member according to an embodiment of the present invention. FIG.
6 is a perspective view of a bottom plate structure used in a modular building in a state of being installed in a frame structure according to an embodiment of the present invention;
Fig. 7 is a cross-sectional view of a portion including a concave portion of the mold-and-sound-absorbing member of AA 'of Fig. 6; Fig.
8 is a sectional view showing a unit member of a sound absorbing member acting as a form according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. The shape and size of elements in the drawings may be exaggerated for clarity.

Hereinafter, a bottom plate structure of a modular building according to an embodiment of the present invention will be described in detail with reference to the drawings.

The bottom plate structure 100 of a modular building according to an embodiment of the present invention is based on the use of a plurality of module units including a vertical member and a horizontal member in a modular building where assembly is performed vertically or horizontally. The horizontal member may be a bottom plate or a ceiling panel constituting the module unit, and the vertical member may be disposed between the bottom plate and the ceiling panel to support a vertical load acting on the module unit.

The bottom plate structure 100 used in the conventional modular construction may be composed of the reinforcing bar 300 and the concrete member 400 as shown in FIG. 1, and the thickness of the poured concrete used is about 150 mm Lt; / RTI > However, when the bottom plate structure 100 is constructed with the concrete member 400 as shown in FIG. 1, the weight of the bottom plate structure 100 becomes excessively heavy due to an increase in the amount of concrete used, There was an increasing problem.

As shown in FIG. 2, the present invention proposes a sectional structure of the improved bottom plate structure 100 to improve the structural stability and the floor impact sound blocking performance, I will.

Referring to FIGS. 1 to 8, the bottom plate structure 100 may include a sound absorbing member 200, a reinforcing bar 300, and a concrete member 400.

First, with reference to Figs. 2 to 8, a description will be given of a sound absorbing member 200 serving as a form. The form-fitting sound-absorbing member 200 may include a plurality of protrusions 210.

The form-use sound-absorbing member 200 is a member serving also as a sound-absorbing member and a form for forming the concrete member 400. The material of the form-use sound-absorbing member 200 may be made of a material such as compressed styrofoam, compressed foam polystyrene, or vibration-proof rubber, which is typically used as a form or sound-absorbing member, and various known types of sound- have.

3, the mold and sound absorbing member 200 may include a plurality of concave and convex portions 210. The concave and convex portions 210 are formed by projecting convex portions 212 and convex portions 210, 212). ≪ / RTI >

6, the dowel-type sound absorbing member 200 may be installed in a manner that the lower portion thereof is mounted on the frame structure F, and the edge portion of the frame structure F, which is engaged with the vertical member, And can be seated in the frame structure F.

2, the concave and convex portions 210 may be spaced apart from each other by a predetermined distance. The concrete member 400 and the form-fitting sound-absorbing member 200 are firmly and tightly coupled to each other by providing the concave / convex portion 210 on the form-use bump member 210 so that the bottom plate structure 100 can be effectively integrated.

In addition, since the concave and convex portions 210 are provided in the form and bump member 210, the concave portion 211 and the convex portion 212 have different terminal areas and are made of a single material, but there is an advantage of obtaining a noise reduction effect by a composite material .

Next, the reinforcing bar 300 will be described with reference to FIGS. 2 and 4. FIG.

As shown in FIG. 4, a plurality of reinforcing bars 300 may be arranged in the longitudinal direction of the recess 211 formed in the formant and sound absorbing member 200. At this time, the number and length of the reinforcing bars 300 are not limited to the illustrated embodiment, and various modifications are possible as long as the rigidity of the various bottom plate structures 100 can be reinforced.

Accordingly, the flexural rigidity of the concrete member 400 integrally formed with the dowel-type sound-absorbing member 200 is improved, and the structural stability can be improved without installing a steel beam from the bottom plate structure 100 of the modular building Effect can be provided.

Finally, with reference to Figs. 5 to 7, the concrete member 400 will be described.

The concrete member 400 is a member constituting a bottom plate of the modular building as shown in FIG. 6, and the reinforcing bar 300 described above may be disposed inside the concrete member 400.

A wire mesh (not shown) or the like may be additionally provided on the convex portion 210 of the concave / convex portion 210 to prevent cracking of the concrete member 400.

6, the concrete member 400 is inserted into the concave portion 211 of the formwork and sound absorbing member 200 in a state where the formant sound absorbing material is mounted on the lower portion of the frame structure F, The concrete member can be formed by placing and curing concrete in the inner space S formed by the mold and the sound absorbing member 200 disposed on the lower surface. When the concrete member 400 is cured, the sound absorbing member 200 serving as a form and the concrete member 400 are integrated to form a floor structure.

In addition, the bottom plate structure 100 in which the concrete member 400 and the form-fitting sound-absorbing member 200 are integrated can be mounted on the frame structure F of the modular building on the lower side. However, a conventionally used mounting method can be widely used as a method of mounting the frame structure (F).

Hereinafter, a bottom plate structure 100 of a modular building according to another embodiment of the present invention will be described.

As shown in FIGS. 2 and 3, the form-fitting sound-absorbing member 200 can be constructed by combining a plurality of unit members 240. A coupling step 241 for coupling with the adjacent unit member 240 may be provided at the end of the concave portion 211 of the unit member 240. However, the coupling between the adjacent unit members 240 is not limited to the coupling by the coupling step 241, and various coupling methods commonly used can be used.

When the size of the bottom plate structure 100 is changed, the unit member 240 can be additionally installed or a part of the unit member 240 can be installed So that it can be used for the bottom plate structure 100 of various sizes.

In addition, a small unit member 240, which is easy to load and transport, is transported to a construction site and assembled in the field, instead of transferring the large formwork sound absorbing member 200 itself, And can be easily installed.

As shown in Figs. 8 (a) and 8 (b), the formwork and sound-absorbing member 200 is provided with two or more unit members 240 having uneven portions 210 at different intervals, It is possible to adjust the spacing of the concave portions 211 to which the reinforcing bars 300 are arranged. Accordingly, it is possible to control the amount of reinforcement of the reinforcing bars 300 according to the magnitude of the stress applied to the bottom plate structure 100.

8A, the first unitary member 242 has a recessed portion 211 that is narrower than the second unitary member 243, and the concave portion 211 is formed after the first unitary member 242 is joined 211 can be utilized in a case where the distance between the recessed portions 211 is small and the stress applied to the bottom plate structure 100 is small due to a small amount of reinforcement reinforcement 300 that can be laid on the recessed portion 211, The second unit member 243 can increase the amount of reinforcement of the reinforcing bar 300 disposed at the concave portion 211 by increasing the distance between the concave portions 211. The stress applied to the bottom plate structure 100 Can be utilized in a large case. A reinforcing member such as a wire mesh may be further provided on the convex portion 210 of the concave and convex portion 210 to reinforce the concrete member 400. [

In addition, since the formant and sound absorbing member 200 is made of a porous material, the contact surface area between the concrete member 400 and the formwork and sound absorbing member 200 is improved, and the frictional force at the interface is increased, .

2 and 3, the side surface 213 connecting the concave portion 211 and the convex portion 212 is inclined so as to be inclined toward the concave portion 211, so that the concrete to be poured, the sound absorbing material As shown in FIG.

The bottom plate structure 100 of the modular building may be a method of installing the bottom plate structure 100 by placing the concrete at the site as described above. However, the method of installing the bottom plate structure 100 of the modular building, 400 can be integrally formed in a factory, and a bottom plate structure manufactured without a separate concrete pouring operation on the site is mounted on the frame structure F, thereby providing a pre-cast installation method.

Next, a method of manufacturing the bottom plate structure 100 used in the modular building according to an embodiment of the present invention will be described with reference to FIGS. 3 to 6. FIG.

The bottom plate structure 100 can be manufactured through the following steps.

First, the form-use sound absorbing member 200 is mounted on the lower surface of the frame structure F.

Thereafter, the reinforcing bar 300 is inserted into the concave portion 211 of the dowel-like sound-absorbing member 200.

Thereafter, the concrete is poured into the internal space S formed by the mold and the sound-absorbing member 200 disposed below and cured for a predetermined time to form the concrete member 400, The structure 100 can be manufactured.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be obvious to those of ordinary skill in the art.

100: a bottom plate structure 200: a sound absorbing member
210: concave / convex portion 211: concave portion
212: convex portion 213: side surface
240: unit member 241: coupling step
242: first unit member 243: second unit member
300: Rebar 400: Concrete member
F: frame structure S: inner space part

Claims (8)

A bottom plate structure for use in a modular building,
A duplex sound absorbing member provided at a lower portion of the bottom plate structure to form the bottom plate structure and having a plurality of recesses and protrusions;
A reinforcing steel reinforced by a recessed portion of the dough and sound absorbing member; And
And a concrete member laid on an upper surface of the form absorbing member.
The method according to claim 1,
Wherein the mold and the sound absorbing member are formed by combining a plurality of unit members.
3. The method of claim 2,
Wherein the unit member is provided with a coupling step for coupling with the adjacent unit member.
The method of claim 3,
Wherein the unit members are provided as two or more unit members each having a plurality of recesses and recesses at different intervals, so that the distance between the recesses to which the reinforcing bars are arranged can be adjusted.
The method according to claim 1,
Wherein the mold and the sound absorbing member are made of a porous material so as to improve the integrity with the concrete member.
The method according to claim 1,
Wherein the mold and the sound absorbing member are made of compressed styrofoam or anti-vibration rubber.
The method according to claim 1,
Wherein the concave and convex portion has a larger area on an upper portion than a lower portion of the convex portion to improve the integral with the concrete member.
A method of manufacturing a bottom plate structure used in a modular building,
A method of manufacturing a sound absorbing structure, comprising: mounting a dowel and a sound absorbing member according to any one of claims 1 to 7 on a lower surface of a frame structure;
Disposing reinforcing bars in the recesses of the dies and the sound absorbing members;
And forming a concrete member by placing and curing concrete in an inner space formed by the mold and the sound-absorbing member disposed at a lower portion of the bottom plate structure.

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