KR20180021308A - Noise reduction structure between floors in reinforced concrete buildings - Google Patents

Abstract

A structure for reducing a noise between floors of a reinforced concrete apartment building comprises: a concrete slab; a sound insulation reinforcing member having the same sound insulation performance as a reclaimed rubber installed by covering the top of the concrete slab; a mesh member installed to surround the sound insulation reinforcing member; a composite mortar layer formed by mixing artificial mineral fibers having a heat insulating property, which is provided on the mesh member, into a bottom mortar; and a floor finish which is applied over the composite mortar layer. The sound insulation reinforcing member includes a plurality of through-holes arranged at predetermined intervals. Moreover, the mesh member may include a plurality of mesh members having different sizes of eyes or differently arranged eyes having the same size.

Description

TECHNICAL FIELD [0001] The present invention relates to a structure for reducing noise in a reinforced concrete apartment house. BACKGROUND OF THE INVENTION [0002]

The present invention relates to a concrete structure, and more particularly, to a structure for reducing interlayer noise of a reinforced concrete apartment house.

Until recently, our country has been rapidly promoting apartment house construction projects centered on apartments in order to provide comfortable environment and efficient housing life by resolving the housing shortages and inventory of land use rates. As a result, more than 70% of the recent housing construction has been occupied by multi-family houses, which has become a representative type of housing in Korea.

In the 1980s, the majority of the apartments were built in the wall, and then the high - rise apartments and residential complexes in the late 1990s appeared. Nowadays, 20 year old apartment buildings have gradually become structurally obsolete as well as functionally and spatially, resulting in many social problems.

Especially, in aged apartment buildings and apartment buildings, crime cases such as murder and fire due to floor impact noise have been occurred repeatedly. Therefore, there is a growing public opinion to include interlayer noise and vibration in the evaluation items of safety diagnosis during reconstruction.

In addition, the new building requires the floor construction to satisfy both the standard floor structure and the recognized floor structure, which satisfies the certain thickness and the constant breaking performance, but it is a problem because there is no sound insulation provision for the existing building.

Particularly in the prior art, since the finishing mortar, lightweight foamed concrete and sound insulating material are installed as separate layers and the process is complicated and the increase in the thickness of the layer does not have a great influence on the improvement of the sound insulation performance and the insulation layer must be separately provided, It was necessary to improve performance.

Therefore, a method for solving such problems is required.

Korean Patent Publication No. 10-2006-0021052

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and it is an object of the present invention to provide a structure capable of reducing the interlayer noise of a reinforced concrete apartment house.

In addition, considering the economic efficiency due to the slab thickness of the reinforced concrete structure while reducing the interlayer noise, an economical structure capable of effectively reducing the interlayer noise generated in the new and old apartment house is suggested.

In addition, the present invention aims to reduce the interlayer noise and improve the insulation performance of the floor of the apartment house.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an interlayer noise reduction structure of a reinforced concrete building including: a concrete slab; A sound reinforcement member having a sound insulation performance such as a recycled rubber wrapped around the concrete slab; A mesh member installed to surround the sound reinforcement member; A composite mortar layer formed by mixing artificial mineral fibers having a heat insulating property provided on the mesh member into a bottom mortar and a floor finishing material applied on the composite mortar layer; Wherein the sound-insulating reinforcing member includes a plurality of through-holes arranged at predetermined intervals; The mesh member may be a plurality of mesh members having different sizes of eyes or a plurality of mesh members having different arrangements of eyes formed to have the same size.

In the above structure, it is further possible to further mix at least one of melamine foam, expanded polystyrene, and PP microfine fiber having sound absorbing performance in the composite mortar layer.

In this structure, the thickness of the composite mortar layer may be determined in consideration of the position of the piping installed in the bottom finishing material and the thickness of the piping.

The structure may further include a urea-shaped concrete layer having a thickness of 70 to 80 mm and a pipe disposed on the composite mortar layer.

In the above structure, the melamine foam, the expanded polystyrene, and the PP microfine fiber may be added to the composite mortar layer in a spherical shape.

In this structure, it is an additional feature that the mixed mortar layer is further mixed with the wood chips and the latex mixed material.

In the structure, an adhesive such as epoxy resin is injected through the through hole of the sound-insulating reinforcing member to bond the sound-insulating reinforcing member to the concrete slab.

In this structure, the sound-insulating reinforcing member is installed to surround all the surfaces of the concrete slab, and the mesh member is installed to surround all the surfaces of the sound-absorbing member.

An interlayer noise reduction structure of another reinforced concrete building of the present invention comprises: a concrete slab; A sound reinforcement member having a sound insulation performance such as a recycled rubber wrapped around the concrete slab; A mesh member installed to surround the sound reinforcement member; A composite mortar layer formed on the mesh member by mixing artificial mineral fibers having a heat insulating property into a bottom mortar; A floor finish applied over the composite mortar layer; Wherein the sound-insulating reinforcing member includes a plurality of through-holes arranged at predetermined intervals; The spacing space between the plurality of through holes and the through holes may include an embossing capable of separating the concrete slab and the sound reinforcement member from each other and absorbing shock transmitted from the sound insulation reinforcement member to the concrete slab.

In the structure, the mesh member may further include a plurality of mesh members having different sizes of eyes or differently arranged eyes formed in the same size.

In the above structure, it is further possible to further mix at least one of melamine foam, expanded polystyrene, and PP microfine fiber having sound absorbing performance in the composite mortar layer.

Another interlayer noise reduction structure of a reinforced concrete building of the present invention includes a concrete slab; A sound reinforcement member having a sound insulation performance such as a recycled rubber wrapped around the concrete slab; A mesh member installed to surround the sound reinforcement member; A composite mortar layer formed on the mesh member by mixing artificial mineral fibers having a heat insulating property into a bottom mortar; A floor finish applied over the composite mortar layer; Wherein a groove is formed in the concrete slab and a plurality of interference protrusions for widening a contact area with the concrete slab are buried in the grooves and a plurality of interference fringes are formed in the grooves between the sound insulation reinforcement member and the concrete slab And coupling the fastening member to the nut embedded in the groove to fix.

In the structure, the sound-insulating reinforcing member may include a plurality of through-holes arranged at predetermined intervals, and the mesh member may include a plurality of eyes having different sizes, or a plurality of It is a further feature to provide the mesh member.

In the above structure, it is further possible to further mix at least one of melamine foam, expanded polystyrene, and PP microfine fiber having sound absorbing performance in the composite mortar layer.

The interlayer noise reduction structure of a reinforced concrete apartment house for solving the above problems has the following effects.

First, the existing sound insulation layer, lightweight foamed concrete (lightweight foam mortar) layer and finished mortar layer are constructed with one composite mortar layer, which greatly increases the convenience of construction.

Secondly, since the insulation layer is provided together in the composite mortar layer, it is an epoch-making structure that can complement the insulation performance as well as the sound insulation performance.

Third, it is possible to reduce the floor height of the reinforced concrete bottom layer by constructing the composite mortar layer.

The effects of the present invention are not limited thereto, and other effects can be exhibited by the peculiar constitution of the present invention.

1 is a view showing a conventional reinforced concrete bottom layer.
FIG. 2 is a view illustrating a construction in which a sound insulating material is installed on a concrete floor.
3 is a view showing a reinforced concrete bottom layer according to a first embodiment of the present invention.
4 is a view showing the thickness variation of the conventional bottom layer and the bottom layer of the first embodiment according to the present invention.
5 is a construction flowchart of a conventional bottom layer.
Fig. 6 is a construction flowchart of the bottom layer of the first embodiment according to the present invention. Fig.
7 is a view for explaining installation of a sound reinforcement member in a second embodiment of the present invention.
8 is a view for explaining the provision of the mesh member in the second embodiment of the present invention.
FIG. 9 is a view for explaining that two mesh members having different eye sizes are provided in the second embodiment of the present invention.
10 is a view for explaining the provision of two mesh members having the same eye size in the second embodiment of the present invention.
11 is a view for explaining how a sound-reinforcement member and a mesh member are fixed to a concrete slab in a second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

FIG. 1 is a view showing a conventional structure of a conventional bottom layer. Referring to FIG. 1, a conventional reinforced concrete bottom layer 10 includes a concrete slab 11, a sound insulating material 12, a lightweight foamed concrete 13, a finishing mortar 14, and a bottom finishing material 15, .

In the conventional reinforced concrete bottom layer 10, although the concrete slab 11 is generally installed at 180 mm, the thickness of the concrete slab 11 may be increased to 210 mm or more in order to prevent the interlayer noise In this case, the construction cost will increase by 5 ~ 6%. In addition, there is a problem of inefficiency that the sound impact is limited compared with the increase in thickness of concrete slab, as compared with the increase in slab thickness.

At present, newly constructed buildings are required to incorporate a standard floor structure and a recognized floor structure, so that a floor structure satisfying both a certain thickness and a certain breaking performance is required.

1, a sound insulating material 12 is installed on a concrete slab 11 in the same order as in FIG. 5, a lightweight foamed concrete 13 and a finishing mortar 14 are successively formed, (15) is constructed, which is not only complicated but also has a problem of securing the floor area because the floor is thicker and the floor height becomes larger and the floor is overcrowded. Furthermore, as described above, the sound insulation effect is not exhibited as thick as the thickness.

In order to solve such a problem, in the first embodiment of the present invention, the reinforced concrete bottom layer 10 is constructed as shown in FIG. 6 as shown in FIG. That is, after the concrete slab 101 is constructed, a sound insulating material having a sound insulating performance is mixed with the finishing mortar to form a single composite mortar layer 102. Therefore, the reinforced concrete bottom layer 100 of FIG. 3 is a structure including a concrete slab 101, a composite mortar layer 102 and a floor finish 103 that are constructed in a simplified process.

In addition, as shown in FIG. 4, the thickness of the reinforced concrete bottom layer naturally decreases as a structure in which the sound insulating material, the lightweight foamed concrete, and the finished mortar of FIG. 1 are constructed as one composite mortar layer 102.

However, in the case of such a structure, there is a merit of reduction of the construction cost and decrease of the floor height due to reduction of the thickness of the structure. However, when the above problem is solved, the heat transfer rate can be improved due to the reduction of the thickness of the bottom layer. Can be a problem. In order to solve this problem, in the present invention, artificial mineral fibers having heat insulation performance are jointly applied to the composite mortar layer 102 so that the thermal insulation performance deterioration due to the thickness reduction can be solved, while the heat insulation performance can be improved.

The sound insulating property of a sound insulating material is usually a hardness or a relatively rigid material, and it plays a role of blocking and reflecting negative sound. In the case of a sound absorbing material, it has a property of inducing sound in reverse (so that sound absorption is possible) A material having a relatively low rigidity such as a bubble material is used.

Because of the difference in physical properties between the sound insulating material and the sound absorbing material as described above, the sound insulating material is advantageous for blocking heavy impact sound and the sound absorbing material is advantageous for blocking the light impact sound sound, so that the sound insulating material and the sound absorbing material can be used separately.

Since the composite mortar layer 102 of the present invention is subjected to a mortar treatment with a floor mortar together with a sound insulating material and a sound absorbing material in a single layer, the composite mortar layer 102 itself can be used as a lightweight sound impact sound and a heavy sound impact sound All can exhibit soundproofing effect. That is, the sound insulating material and the sound absorbing material can be simultaneously subjected to a mortar treatment so that a single layer can be constructed as a single new material.

As described above, the overall thickness is reduced compared to the conventional reinforced concrete bottom layer 10 of FIG. 1, but the effect of the thickness reduction on the increase of the interlaminar noise is not large. This is because the sound insulation performance due to the sound insulating material added to the composite mortar layer 102 It can be supplemented sufficiently as an improvement. In the present invention, any one or more of melamine foam, expanded polystyrene (EPS), and PP microfine fiber is used as the sound insulating material added to the composite mortar layer 102. When the above-mentioned sound insulating material is mixed with the composite mortar layer 102, the noise passing through the composite mortar layer 102 is absorbed by the sound insulating material in the composite mortar layer 102, so that the sound absorbing effect is fermented, Is expressed.

That is, by adopting the interlayer noise reduction structure of the present invention, sound absorption performance (light weight impact sound) can be achieved in addition to the improvement of the proof strength and securing the sound insulation performance (heavy impact sound).

The gypsum board used for the purpose of sound insulation in a conventional building has a problem that it is not an environmentally friendly material in addition to the inconvenience of being constructed as a layer different from the mortar layer. In the present invention, And sound insulating material + mortar ", it is possible to eliminate the convenience of construction and the problem of environmental pollution at all costs.

Of the sound absorbers described above, melamine foams are particularly advantageous in workability, nonflammability, and low density, and PP microfine fibers are environmentally friendly and highly surface-tight.

In addition, the composite mortar layer 102 may be made by mixing a lightweight bubble mortar with a heat insulating material such as artificial mineral fibers to improve the heat insulating performance. That is, the artificial mineral fiber and the lightweight foam mortar are mixed together in the composite mortar layer 102. Insulation materials such as artificial mineral fibers such as glass wool and mineral wool are thin and uniform, and the formation of micropores is continuous, and the air layer is finely divided to block the heat flow and to absorb the sound. Can be further improved. In addition, lightweight foamed mortar is a collection of very small bubbles surrounded by cement mortar. Bubble mortar type has very low thermal conductivity, dynamic energy absorbency, high heat resistance and tensile stress characteristics And has a constant resistance constantly until all the bubbles contained therein are broken), which is excellent in heat insulation and durability. Therefore, the composite mortar layer 102 structurally integrating the heat insulating material in the lightweight foamed mortar can increase the durability while simplifying the structure, and can secure excellent heat insulation and sound absorption performance.

The finishing mortar mixed into the composite mortar layer 102 serves as a material for mixing the sound insulating material and the heat insulating material, and at the same time, it is formed as a finishing mortar so as to protect the bottom layer and provide a surface treatment effect.

In the present invention, the sound insulating material, the lightweight foamed concrete, and the finishing mortar are formed of one composite mortar layer. For this purpose, one or more of melamine foam, expanded polystyrene (EPS) and PP microfiber fiber is used as the sound insulating material, The mortar mortar is constructed to use artificial mineral fiber with thermal insulation as a bubble mortar. The finishing mortar is also constructed so as to have a surface treatment effect so as to use a material having an interlayer noise reduction vibration and to serve as a finishing material.

When the composite mortar layer 102 of the present invention is applied as described above, it is possible to construct the composite mortar layer 102 in a single layer structure, thereby greatly increasing the convenience of the construction. In addition, since the single composite mortar layer 102 ensures the sound insulation and the sound absorbing effect and the heat insulating performance, the convenience of the construction is greatly increased.

The sound insulating material has the effect of reducing the interlayer noise, the lightweight bubble mortar has the insulation performance, the finishing mortar has the bottom layer protection and the surface treatment effect. Figure 6 shows the simplified method for the composite mortar layer of a single composite mortar.

One of the important ones is to determine the thickness of the single mortar considering the installation of the piping 104. When the composite mortar layer 102 shown in FIG. 4 is applied, the compressive strength of the finished mortar is generally 20 MPa, but the compressive strength must be controlled in consideration of the performance of the lightweight foamed mortar. The size and content of the materials added to the composite mortar also need to be adjusted.

According to the present invention, it is possible to solve the problem that the existing finishing mortar, lightweight foamed concrete and sound insulating material are applied as separate layers and the process is complicated, the increase in the thickness of the layer does not greatly affect the improvement of the sound insulation performance, .

The lightweight foamed concrete may be a lightweight foam mortar.

Also, in the present invention, it may be advantageous to directly install the urethane foam concrete on the concrete slab and to construct the piping 104 of the bottom mortar. In this case, the urethane foam concrete can be installed at a thickness of 70 to 80 mm, and the thickness of the concrete slab may be 150 to 180 mm.

A second embodiment of the present invention will be described with reference to Figs. 7 to 11. Fig.

In the second embodiment, the sound absorbing member 200 and the mesh member 300, which can be selectively applied to the first embodiment using the composite mortar layer 102, are added. The composite mortar layer 102 according to the present invention is advantageous in that sound insulation, insulation, and finishing are completed by one layer, and the bottom thickness is reduced to secure a sufficient thickness. However, The necessity of strengthening durability and strengthening of vibration proof can be suggested. For this purpose, in the second embodiment of the present invention, the sound insulation reinforcement member 200 as shown in FIG. 7 and the mesh member 300 as shown in FIG. 8 may be additionally provided separately from the sound insulating material of the composite mortar layer 102.

In the conventional reinforced concrete bottom layer 10 as shown in FIG. 1, since the sound insulating material 12, the lightweight foamed concrete 13 and the finishing mortar 14 are separately formed on the concrete slab 11, the bottom thickness is thicker than the thickness However, in the second embodiment of the present invention, a separate sound reinforcement member 200 is installed to reinforce the sound insulation performance of the composite mortar layer 102, and a separate mesh member 300 is installed to reinforce the sound insulation reinforcement member 200. The vibration absorbing performance is also improved by increasing the bottom thickness of a certain portion. In addition, structural stability and rigidity can be improved due to the upper mesh member 300. Compared with the conventional embodiment shown in Fig. 1, the bottom thickness is reduced while the sound insulation performance and the dustproof performance are superior to those of the conventional art shown in Fig. 1 or the first embodiment shown in Fig.

Referring to FIG. 7, the structure for reducing noise in a reinforced concrete building of the present invention includes a sound reinforcement member 200 made of an elastic material such as a reclaimed rubber that surrounds a concrete slab 101. As the sound-absorbing member 200, various materials for sound insulation may be used. In this embodiment, the sound-absorbing member 200 is made of recycled rubber, but a foamed polyethylene sheet can be used. In addition, a porous synthetic resin such as a sponge or a nonwoven fabric can be made to have a sound-absorbing property. In this case, resonance in the hole should be suppressed and resonance sound should be absorbed to reduce the noise.

A plurality of through holes 210 arranged at a predetermined interval are formed in the sound-insulating reinforcing member 200. The through holes 210 may be formed in various shapes, but in the present embodiment, a plurality of rectangular through holes 210 are formed at predetermined intervals along the longitudinal direction of the sound reinforcement member 200.

Meanwhile, an embossing 220 is formed in the spacing space between the through hole 210 and the through hole 210 in the sound reinforcement member 200. When the embossing 220 is formed, the space between the through hole 210 and the through hole 210 can absorb a certain portion of the impact transmitted to the concrete slab 101, thereby improving the sound absorption effect due to the impact, The effect can be expected.

This embossing minimizes the contact between the concrete slabs 101 and the sound reinforcement member 200 to minimize the impact transmission while providing a space between the concrete slabs 101 and the concrete slabs 101, The effect of complementing the sound insulation effect and the insulation effect can be expected.

An adhesive such as an epoxy resin is injected through the through hole 210 of the sound reinforcement member 200 to be firmly attached to the concrete slab 101.

The sound reinforcement member 200 may be installed on all sides of the concrete slab 101, but may be installed on only a part of the sides of the concrete slab 101.

Further, as shown in FIG. 8, the mesh member 300 is mounted on the sound-absorbing member 200.

As shown in FIGS. 9 and 10, at least two of the mesh members 300 may be installed in the sound-insulating reinforcing member 200 on the concrete slabs 101 at the same time.

A plurality of eyes 310 having different sizes are formed on the mesh member 300 so that the mesh member 300 is overlapped with the sound reinforcement member 200 and the wire density of the mesh member 300 is different for each mesh member 300 do. Therefore, it is possible to prevent the sound-insulating reinforcing member 200 from falling off the concrete slabs 101 and to reinforce the strength of the concrete slabs 101.

The size of the eye of the mesh member 300 and the arrangement of the eyes can be determined so that the sizes of the eyes 310 of the mesh members 300 overlap each other as shown in FIG. This is because when the plurality of mesh members 300 are overlapped, the places where the eyes 310 of the mesh member 300 are located are shifted from each other to maximize the wire density with respect to the concrete slabs 101, So as to increase the rigidity.

In addition, the wire 310 of the mesh member 300 is different in size, and the mesh members 300 are formed to have different wire densities and are superimposed on each other, resulting in improved structural stability and rigidity.

9 shows an example in which the sizes of the eyes 310 of the mesh member 300 are different from each other. In FIG. 10, the mesh member 300 having the eyes 310 having the same size, Member 200 as shown in Fig.

When the two mesh members (one solid line and one dashed line) having the eyes 310 of the same size and arrangement as shown in FIG. 10 are overlapped, the eye 310 of the mesh member 300 indicated by the solid line, The eye 310 of the mesh member 300 indicated by the dashed line may be positioned between the overlapped mesh member 310 and the eye 310 of the overlapped mesh member 300 may be dense.

The mesh member 300 may be installed on all sides of the concrete slab 101, but may be installed on only a part of the sides of the concrete slab 101. However, the mesh member 300 is installed together with the surface on which the sound-absorbing member 200 is installed.

11, the sound reinforcement member 200 and the mesh member 300 may be fixed by the coupling member 400 by the concrete slabs 101. As shown in FIG. The concrete slab (101) is formed with a coupling groove (410) to which the coupling member (400) is to be coupled. In the present invention, the nuts 420 are embedded in the coupling grooves 410 of the concrete slabs 101 so that the coupling members 400 can be easily fastened to the concrete slabs 101, So that the fastening member 400 can be rotated with respect to the nut 420 to be fastened.

The nut 420 is inserted into the concrete slab 101 with the interference protrusion 421 formed around the nut 420 so that the nut 420 is not separated from the concrete slab. The interference protrusions 421 can be firmly inserted into the concrete slabs 101 by widening the contact area with the concrete slabs 101.

The coupling member 400 is inserted into the coupling groove 410 of the concrete slab 101 through the coupling members 400 to integrally join the concrete slab 101, the sound insulation reinforcing member 200 and the plurality of mesh members 300 And is fastened to the nut 420 having the interference protrusion 421.

A separate packing layer (not shown) may be covered on the mesh member 300, and the composite mortar layer 102 and the bottom finishing material 103 may be formed thereon in the same manner as in the previous embodiment.

It is a matter of course that the concrete slab 101 of the present invention can be a wall, a beam, and a column of a building.

Although not shown in the drawing, reinforcing bars may be installed in the concrete slabs 101 to reinforce the tensile strength of the concrete.

While the embodiments of the present invention have been described with reference to the accompanying drawings, it is to be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: Reinforced concrete floor
101: Concrete slab
102: Composite mortar layer
103: Floor finish
200: a sound reinforcement member
210: Through hole
220: Embossing
300: mesh member
310: Eye
400: fastening member
410: fastening groove
420: nut
421: interference projection

Claims (14)

As a reinforced concrete building structure that reduces interlayer noise,
Concrete slabs,
A sound insulation reinforcing member having a sound insulation performance such as a recycled rubber wrapped around the concrete slab,
A mesh member installed to surround the sound reinforcement member,
A composite mortar layer formed on the mesh member by mixing artificial mineral fibers having a heat insulating property into a bottom mortar, and
And a floor finish material applied on the composite mortar layer,
Wherein the sound insulation reinforcement member includes a plurality of through holes arranged at predetermined intervals,
Wherein the mesh member is a plurality of mesh members having eyes of different sizes or a plurality of mesh members having different arrangements of eyes formed to have the same size. The method according to claim 1,
Wherein the composite mortar layer is further mixed with at least one of melamine foam, expanded polystyrene, and PP microfine fiber having a sound absorbing performance, thereby reducing the interlayer noise of the reinforced concrete building. The method according to claim 1,
Wherein the thickness of the composite mortar layer is determined in consideration of the position of the piping installed in the bottom finishing material and the thickness of the pipe, and the interlayer noise reduction structure of the reinforced concrete building. The method according to claim 1,
Urethane foam concrete poured into a thickness of 70 to 80 mm,
Further comprising piping installed on the composite mortar layer. The structure for reducing interlayer noise in a reinforced concrete building. 3. The method of claim 2,
Wherein the melamine foam, the expanded polystyrene, and the PP microfine fiber are spherically formed and mixed into the composite mortar layer. The method according to claim 1,
Wherein the composite mortar layer is further mixed with a mixture of wood chips and latex pulverized in the concrete mortar layer. The method according to claim 1,
Wherein an adhesive such as an epoxy resin is injected through the through hole of the sound insulation reinforcement member to adhere the sound insulation reinforcement member to the concrete slab. The method according to claim 1,
Wherein the sound insulation reinforcement member is installed to surround all the surfaces of the concrete slab, and the mesh member is installed to surround all the surfaces of the sound insulation reinforcement member. As a reinforced concrete building structure that reduces interlayer noise,
Concrete slabs,
A sound insulation reinforcing member having sound insulation performance such as a recycled rubber wrapped around the concrete slab,
A mesh member surrounding the sound reinforcement member,
A composite mortar layer formed by mixing artificial mineral fibers having a heat insulating property on a bottom mortar on the mesh member,
And a floor finish material applied on the composite mortar layer,
Wherein the sound insulation reinforcement member includes a plurality of through holes arranged at predetermined intervals,
Wherein a spacing between the plurality of through holes and the through holes allows the concrete slab and the sound reinforcement member to be separated from each other and an embossing capable of absorbing impact transmitted from the sound insulation reinforcement member to the concrete slab is formed. Interlayer noise reduction structure of buildings. 10. The method of claim 9,
Wherein the mesh member comprises a plurality of mesh members having different sizes of eyes or arrangements of eyes formed in the same size differently from each other. 10. The method of claim 9,
Wherein the composite mortar layer is further mixed with at least one of melamine foam, expanded polystyrene, and PP microfine fiber having a sound absorbing performance, to reduce the interlayer noise of the reinforced concrete building. As a reinforced concrete building structure that reduces interlayer noise,
Concrete slabs,
A sound insulation reinforcing member having a sound insulation performance such as a recycled rubber wrapped around the concrete slab,
A mesh member installed to surround the sound reinforcement member,
A composite mortar layer formed on the mesh member by mixing artificial mineral fibers having a heat insulating property into a bottom mortar, and
And a floor finish material applied on the composite mortar layer,
Wherein a plurality of interference protrusions are formed on the concrete slab and a plurality of interference protrusions are formed on the outer circumferential surface of the concrete slab so as to widen the contact area with the concrete slab, And a fastening member is coupled to the nut embedded in the groove to fix the reinforcing member. 13. The method of claim 12,
Wherein the sound insulation reinforcement member includes a plurality of through holes arranged at predetermined intervals,
Wherein the mesh member comprises a plurality of mesh members having different sizes of eyes or arrangements of eyes formed in the same size differently from each other. 13. The method of claim 12,
Wherein the composite mortar layer is further mixed with at least one of melamine foam, expanded polystyrene, and PP microfine fiber having a sound absorbing performance, to reduce the interlayer noise of the reinforced concrete building.

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