KR102199187B1 - Apparatus for reducing noise between floors - Google Patents

Abstract

The inter-floor noise reduction apparatus according to the present invention includes: a support part provided on one of the upper floor plate and the lower floor ceiling of the structure, or provided in a space between the floor plate and the ceiling; A support beam coupled to the support part and having a plurality of support beams radially provided around the support part; And weight parts respectively installed at both ends of the support beam. Including, the support beam and the weight part, regardless of the intensity of the vibration applied to the floor plate or the position of the vibration may reduce or control the vibration applied to the floor plate.

Description

Floor noise reduction device {APPARATUS FOR REDUCING NOISE BETWEEN FLOORS}

The present invention relates to an inter-floor noise reduction device, and more particularly, to an inter-floor noise reduction device capable of reducing the vibration applied to the upper floor plate of the structure to reduce the generation of noise to the lower floor by the vibration applied to the upper floor plate. About.

In general, the floors and floors of apartments, multi-family houses, row houses, officetels and buildings are separated by slabs made of concrete. Styrofoam is installed on the slab for insulation and heating pipes, foamed concrete is poured thereon, heating pipes are installed, and floor works leading to plastering mortar work are performed.

However, in the case of a multi-storey building despite such a floor construction, impact or friction is applied to the floor due to walking of a person, falling of objects, movement of household appliances, furniture, and the like. Since the impact or friction applied to the floor is transmitted from the upper floor to the lower floor through the slab intact, noise pollution due to inter-floor noise has a serious problem.

The interfloor noise is generally divided into a light-weight impact sound that contains high-frequency component noise, such as a falling impact sound of objects or moving fricatives such as furniture, and a neutral impact sound, which is a low-frequency component noise generated by walking or running by children do.

For reference, according to regulations such as housing construction standards, when constructing a multi-story building, the lightweight impact sound must be 58 decibels (dB) or less and the weight impact sound is 50 decibels (dB) or less, or the standard floor determined and notified by the Minister of Construction and Transportation. It is stated that it should be constructed as a structure.

Despite these efforts, many disputes between neighbors have arisen due to inter-floor noise, which has emerged as a serious social problem.

Accordingly, various researches to mitigate inter-floor noise are being actively conducted.

For example, an interlayer noise cushioning material is inserted between the upper floor plate and the ondol finishing material, or a sound insulation film is installed on the ceiling of the lower floor to block the transmission of noise caused by vibration applied from the upper floor to the lower floor.

However, in the case of using an interlayer noise cushioning material or a sound insulation film, the light impact sound is blocked to some extent, but in the case of a heavy impact sound, it is caused by the vibration of the upper floor plate, so it cannot be blocked by the interlayer noise buffer material or sound insulation film. There is this.

In addition, by installing TMD (Tuned Mass Damper) in the apartment in the space between the upper floor plate and the lower floor ceiling, it is possible to reduce the noise generation of the lower floor due to vibration of the upper floor plate.

However, in the case of TMD, since the weight is heavy, there is a risk that the ceiling of the lower layer having a thin thickness is collapsed, and the price is high. In addition, the TMD has to be installed in consideration of the vibration location and the size of the vibration load.

Accordingly, the present applicant has proposed the present invention in order to solve the above problems, and as a prior art document related thereto, Korean Patent Laid-Open Publication No. 10-2017-0130212 (Name of the invention: interlayer noise prevention device, published Day: 2017.11.28.)

An object of the present invention is to install an inter-floor noise reduction device without considering the load of the upper floor plate and the ceiling of the lower floor or the position of the vibration applied from the upper floor to the lower floor, thereby reducing the generation of noise to the lower floor due to the vibration of the upper floor. It is to provide a noise reduction device.

The problem to be solved by the present invention is not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

The above object is, according to the present invention, the support provided on either one of the upper floor plate and the ceiling of the lower floor of the structure or provided in the space between the floor plate and the ceiling; A support beam coupled to the support part and having a plurality of support beams radially provided around the support part; And weight parts respectively installed at both ends of the support beam. Including, the support beam and the weight, regardless of the strength of the vibration applied to the floor plate or the position of the vibration may be achieved by an interlayer noise reduction device for reducing or controlling the vibration applied to the floor plate.

The support beam and the weight portion may have a function of a damper to reduce vibration applied to the bottom plate.

The weight portion may be provided at both ends of the support beam by varying the weight of the weight portion so as to reduce or control the vibration regardless of the intensity of the vibration applied to the bottom plate or the location of the vibration.

The support beams may be provided to have different spring constants.

The support beam may have the same length or different lengths from the support part to one end of the support beam based on the support part.

The weight part may be provided at both ends of the support beam so that the weight linearly increases or decreases in any one direction around the support part.

The support beam may be provided so that the length from the support part to one end increases or decreases linearly along any one direction around the support part.

The support beam may be provided so that the spring constant linearly increases or decreases along any one direction around the support part.

One end of the support part is coupled to a lower surface of the bottom plate, the other end of the support part is provided in a state suspended toward the ceiling, and the support beam may be coupled to the other end of the support part.

One end of the support part is coupled to a lower surface of the ceiling, the other end of the support part is provided in a state suspended downward from the ceiling, and the support beam may be coupled to the other end of the support part.

The support part, the support beam, and the weight part may be provided inside a lighting member provided on a lower surface of the ceiling, or may be provided integrally with the lighting member.

The interfloor noise reduction device of the present invention can control the vibration generated in the upper floor without considering the intensity of the vibration applied to the upper floor plate or the location of the vibration. It can be effectively reduced.

In addition, unlike the conventional TMD, the interlayer noise reduction device of the present invention is formed in a simple structure with a support part, a support beam combined with the support part, and a weight part installed at both ends of the support beam, and is very light, so it is formed with a thickness thinner than the upper floor plate It can also be installed on the ceiling of the lower floor.

In addition, since the interlayer noise reduction device of the present invention has a simple structure and is inexpensive compared to the conventional TMD, the manufacturing cost of the interlayer noise reduction device can be reduced.

1 is a conceptual diagram of an interlayer noise reduction apparatus according to a first embodiment of the present invention.
2 is a cross-sectional view schematically showing the interlayer noise reduction apparatus shown in FIG. 1.
3 is a conceptual diagram illustrating the effect of the inter-floor noise reduction device according to the load applied to the upper floor plate in a state in which the inter-floor noise reduction device shown in FIG. 2 is installed between the upper floor plate and the lower floor ceiling.
4 and 5 are views for explaining a change in length of a support beam and a change in weight of a weight part provided around a support part of the interlayer noise reduction device shown in FIG. 2.
6 is a schematic cross-sectional view illustrating an apparatus for reducing interlayer noise according to a second embodiment of the present invention.
7 is a schematic cross-sectional view illustrating an apparatus for reducing interlayer noise according to a third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. The present invention may be implemented in various different forms and is not limited to the embodiments described herein.

Note that the drawings are schematic and have not been drawn to scale. Relative dimensions and ratios of parts in the drawings are exaggerated or reduced in size for clarity and convenience in the drawings, and any dimensions are illustrative only and not limiting. In addition, the same reference numerals are used to indicate similar features to the same structure, element or part appearing in two or more drawings.

Examples of the present invention specifically represent ideal embodiments of the present invention. As a result, various modifications of the drawings are expected. Accordingly, the embodiment is not limited to a specific shape in the illustrated area, and includes, for example, a modification of the shape by manufacturing.

Hereinafter, an interlayer noise reduction apparatus 100, 100', 100'' according to embodiments of the present invention will be described with reference to the accompanying drawings.

First, an interlayer noise reduction apparatus 100 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 5.

1 is a conceptual diagram of an interlayer noise reduction apparatus according to a first embodiment of the present invention, FIG. 2 is a schematic cross-sectional view of the interlayer noise reduction apparatus shown in FIG. 1, and FIG. 3 is a schematic diagram of the interlayer noise reduction apparatus shown in FIG. Conceptual diagram for explaining the effect of the inter-floor noise reduction device according to the load applied to the upper floor plate in the state installed between the upper floor plate and the lower floor ceiling, FIGS. 4 and 5 are the supporting parts of the inter-floor noise reduction device shown in FIG. It is a diagram for explaining the change in the length of the support beam provided as the center and the change in the weight of the weight part.

As shown in Figures 1 to 5, the inter-floor noise reduction device 100 according to the first embodiment of the present invention is between the upper floor plate 102 and the lower floor ceiling 104 of a structure or building (not shown). A support 110 provided in the space of the; It is coupled to the support portion 110, it may include a plurality of support beams 120 radially provided around the support portion 110 and a weight portion 130 respectively installed at both ends of the support beam 120.

The interfloor noise reduction apparatus 100 according to the first embodiment of the present invention may be provided in a space between the upper floor plate 102 and the lower ceiling 104.

In this case, the support part 110 may be coupled to the lower surface 102b of the upper floor plate 102. In other words, one end of the support part 110 may be coupled to the lower end surface 102b of the upper floor plate 102 and the other end of the support part 110 may be provided in a state suspended toward the ceiling 104 of the lower floor. For reference, the upper surface 102a of the upper floor plate 102 may be a floor surface of an upper floor on which a person on the upper floor moves or furniture, electronic products, etc. are located.

One end of the support part 110 is coupled to the lower end surface 102b of the upper floor plate 102 using a coupling member 112 such as a bolt, and the support part 110 is at the other end of the coupling member 112 By using the support beam 120 to be described later may be coupled.

On the other hand, the support part 110 is a kind of support member for positioning the support beam 120 and the weight part 130 coupled to the support part 110 between the upper floor plate 102 and the ceiling 104 of the lower floor. To this end, the thickness of the support portion 110 is provided at least thicker than the thickness of the support beam 120 and is heavier than the weight (M) of the weight portion 130 so that the support beam 120 and the weight portion 130 are placed on the upper floor plate. It can stably support the lower surface 102b of (102).

For reference, the outer circumferential surface of the support 110 may be formed in various shapes such as a flat surface or a curved surface, but is not limited thereto.

The support beam 120 coupled to the support unit 110 may function as a damper for reducing vibration applied to the upper floor plate 102 together with the weight unit 130 to be described later. Accordingly, the support beam 120 can reduce the vibration applied to the upper floor plate 102 so that when the vibration applied to the upper floor plate 102 is transmitted through the support part 110, the vibration applied to the upper floor plate 102 is not transmitted to the lower ceiling 104. have.

As described above, the support beam 120 may be coupled by using the support portion 110 and a coupling member 112 such as a bolt. At this time, the support beam 120 may be provided with different spring constants depending on the position coupled to the support portion 110 by the coupling member 112, this will be described in detail below.

A weight portion 130 may be installed at each of both ends of the support beam 120. The weight part 130 may be an object having a predetermined weight. For reference, the weights M forming the weight part 130 may all be provided with the same size, or may be provided with different weights depending on the location of the support beam 120 to be installed.

The weight part 130 may be coupled to the support part 110 like the support beam 120 to perform a function such as a damper for reducing vibration applied to the upper floor plate 102. That is, the weight part 130 may reduce or cancel the vibration applied to the upper floor plate 102 transmitted through the support part 110 by forming a unique frequency together with the support beam 120.

On the other hand, the inter-floor noise reduction device 100 according to the first embodiment of the present invention includes the support beam 120 and the weight part 130 regardless of the intensity of the vibration applied to the upper floor plate 102 or the position of the vibration. Vibration applied to the upper floor plate 102 may be reduced or controlled.

For example, in the case of a conventional TMD for reducing the vibration of the upper floor, it is installed in a predetermined position to reduce or cancel the vibration applied from the upper floor in consideration of the strength of the vibration applied to the structure, that is, the upper floor plate 102 or the location of the vibration. . In this case, as shown in FIG. 3, when the force of F1, F2 is applied to a position other than a predetermined position on the upper surface 102a of the upper floor plate 102, the TMD installed at the predetermined position is used. It becomes difficult to reduce or cancel the vibration applied to the upper floor plate 102.

However, the interlayer noise reduction device 100 according to the first embodiment of the present invention is formed differently in the length (L) of the support beam 120 or the weight (M) of the weight portion 130 with respect to the support portion 110 Thus, regions of the frequency generated by each of the support beams 120 or 130 may be formed in various ways. Accordingly, no matter what intensity of vibration is applied to the upper floor plate 102 at any position, the upper floor floor by the inter-floor noise reduction device 100 installed in the space between the upper floor plate 102 and the lower ceiling 104 There is an effect of reducing or canceling the vibration applied to the plate 102 so that it is not transmitted to the lower layer.

Meanwhile, a plurality of support beams 120 according to the first embodiment of the present invention may be radially provided around the support part 110. In this way, as the plurality of support beams 120 are radially provided, the vibration applied to the upper floor plate 102 is more effectively reduced or controlled regardless of the intensity of the vibration applied to the upper floor plate 102 or the position of the vibration. can do. That is, the interlayer noise reduction apparatus 100 according to the first embodiment of the present invention can effectively reduce random vibration.

Here, a plurality of support beams 120 provided radially with respect to the support part 110 may be provided to have the same length (L) to have the same spring constant, and differently, a plurality of support beams 120 provided radially. ) May be provided with different lengths (L) to have different spring constants.

First, as shown in FIG. 4, the support beam 120 may have the same length L from the support part 110 to one end of the support beam 120 based on the support part 110. In this case, the weight parts 130 installed at both ends of the support beam 120 may be provided with a weight M of the same size or may be provided with a weight M of different sizes.

For example, when the support beam 120 is provided with the same length (L) and the weight portions 130 installed at both ends of each support beam 120 are provided with the same size of weight (M), the support beam 120 ), the vibration applied to the upper floor plate 102 can be canceled only when the frequency by the weight part 130 and the frequency applied to the upper floor plate 102 are in the same frequency range. If the frequency applied to the upper floor plate 102 is in a frequency range different from that formed by the support beam 120 and the weight part 130, the vibration applied to the upper floor plate 102 is reduced or canceled. As a result, noise due to vibration applied to the upper floor plate 102 may be generated to the lower floor.

For reference, when the support beams 120 are provided with the same length (L) and the weight portions 130 installed at both ends of each support beam 120 are provided with different size weights (M), each support The beam 120 and the weight 130 may have a frequency of various regions. Accordingly, it is possible to reduce or control the vibration applied to the upper floor plate 102 regardless of the intensity of the vibration applied to the upper floor plate 102 and the position of the vibration.

Meanwhile, the support beam 120 may have different lengths from the support portion 110 to one end of the support beam 120 based on the support portion 110.

In particular, referring to FIG. 5, the support beam 120 may be provided to linearly increase or decrease in length from the support part 110 to one end along any one direction around the support part 110. In this case, the weight portions 130 respectively installed at both ends of the support beam 120 may be provided with different weights M. Moreover, the weight part 130 may also be provided so that the weight increases or decreases linearly along any one direction around the support part 110.

As shown in FIG. 5, the weight installed at one end of the support beam 120 having a length L1 and a length L1 of the support beam 120 positioned on one side of the support 110 with the support 110 as the center If the weight of the part 130 is M1, the length (L) of the support beam 120 along the counterclockwise direction around the support part 110 is linear from L1 to L2, L3, L4, L5, L6, L7, L8 The weight (M) size of the weight part 130 increases linearly from M1 to M2, M3, M4, M5, M6, M7, M8 with an increase in the length (L) of the support beam 120. can do.

For reference, FIG. 5 shows that as the length (L) of the support beam 120 increases, the weight (M) size of the weight portion 130 installed at one end of the support beam 120 increases, but the support portion In the counterclockwise direction around (110), the length (L) of the support beam 120 is increased, and the weight (M) size of the weight portion 130 installed at one end of the support beam 120 is reduced. May be.

On the other hand, as described above, according to the length (L) of the support beam 120 and the weight (M) size of the weight portion 130 together differently, the support beam 120 is in any one direction around the support portion 110 Accordingly, the spring constant may be provided to increase or decrease linearly. The spring constant of the support beam 120 may vary depending on the length (L) of the support beam 120 and the size of the weight (M) of the weight portion 130 installed at one end of the support beam 120. In other words, when the length (L) of the support beam 120 is increased and the size of the weight (M) of the weight portion 130 increases, the spring constant of the support beam 120 may also increase.

That is, as shown in FIG. 5, the length (L) of the support beam 120 increases linearly along the counterclockwise direction around the support portion 110, and the weight portion 130 installed on the support beam 120 When the size of the weight (M) increases linearly, the spring constant of the support beam 120 may also increase linearly. In addition, unlike shown in FIG. 5, when the length L of the support beam 120 decreases linearly along the counterclockwise direction around the support 110, the spring water of the support beam 120 is also linear. Can be reduced by enemies.

In this way, as the spring constant of the support beam 120 is increased or decreased, the natural frequency or frequency obtained by the support beam 120 and the weight part 130 also changes, so the vibration applied to the upper floor plate 102 The area that can respond to is increased.

On the other hand, with reference to Figure 6, the interlayer noise reduction apparatus 100' according to the second embodiment of the present invention will be described focusing on the difference from the above-described embodiment.

6 is a schematic cross-sectional view illustrating an apparatus for reducing interlayer noise according to another exemplary embodiment of the present invention.

The interlayer noise reduction apparatus 100' according to the second embodiment of the present invention is the same as the above-described embodiment, except for the location where the interlayer noise reduction apparatus 100' is installed, so the same name and Reference numerals have been given, and the descriptions thereof will apply mutatis mutandis to the above-described embodiments.

As shown in FIG. 6, the interlayer noise reduction apparatus 100' according to the second embodiment of the present invention may be provided in a space between the upper floor plate 102 and the lower ceiling 104. At this time, the other end of the support part 110 is coupled to the upper surface 104a of the lower ceiling 104, and one end of the support part 110 is in a state facing upward from the lower ceiling 104 toward the upper floor plate 102. Can be provided. In addition, the support beam 120 may be coupled to one end of the support portion 110.

Here, the interlayer noise reduction apparatus 100' according to the second embodiment of the present invention is composed of a support 110, a support 120, and a weight 130, as described above, compared to a conventional TMD. Its weight can be light. Accordingly, even if the interlayer noise reduction device 100' is formed to a thickness thinner than the upper floor plate 102 and is installed on the lower ceiling 104 formed of a plywood or wooden material, it will be stably located on the lower ceiling 104. You will be able to. Moreover, even if the vibration applied from the upper floor plate 102 is transmitted to the lower floor ceiling 104 by the inter-floor noise reduction device 100' installed in the lower floor ceiling 104, the vibration applied to the upper floor plate 102 to the lower floor Noise can be prevented.

On the other hand, referring to FIG. 7, the interlayer noise reduction apparatus 100 ″ according to the third embodiment of the present invention will be described focusing on differences from the above-described embodiments.

7 is a schematic cross-sectional view illustrating an apparatus for reducing interlayer noise according to another embodiment of the present invention.

The inter-floor noise reduction device 100 ″ according to the third embodiment of the present invention is substantially the same as the above-described embodiments, except for the installation location of the inter-floor noise reduction device 100 ″. The same names and reference numerals have been assigned to them, and the descriptions thereof will apply mutatis mutandis to the above-described embodiments.

The inter-floor noise reduction device 100 ″ according to the third embodiment of the present invention may be installed on the lower ceiling 104. In other words, one end of the support portion 110 of the interlayer noise reduction device 100 ″ is coupled to the lower surface 104b of the lower ceiling 104, and the other end of the support portion 110 moves downward from the lower ceiling 104 Can be provided in a suspended state. In this case, the support beam 120 may be coupled to the lower end of the support portion 110.

Accordingly, even if the vibration applied to the upper floor plate 102 is transmitted to the lower floor ceiling 104, the upper floor plate by the inter-floor noise reduction device 100 ″ installed on the lower surface 104b of the lower ceiling 104 It is possible to prevent the vibration applied to 102 from being transmitted to the lower floor, and to prevent the noise caused by the vibration from being generated to the lower floor.

When the interlayer noise reduction device 100 ″ is installed on the lower surface 104b of the ceiling 104 on the lower floor, it may be exposed to the outside. It may be provided inside the lighting member 106 provided on the ceiling 104 to prevent exposure of the interlayer noise reduction device 100'' to the outside, or may be provided integrally with the lighting member 106 have.

The lighting member 106 may have a space formed inside the lighting member 106 except for additional devices for generating illumination of the lighting member 106. If the interlayer noise reduction device 100'' is installed in the space inside the lighting member 106, it is possible to prevent the interlayer noise reduction device 100'' from being exposed to the outside, and at the same time, the upper floor plate ( Even if the vibration applied to 102) is transmitted to the lower ceiling 104, it is possible to effectively prevent noise from being generated to the lower floor by the transmitted vibration.

For reference, although not shown in FIGS. 1 to 7, inter-floor noise reduction devices 100, 100 ′, 100 ″ according to embodiments of the present invention are installed on the upper floor plate 102 or the lower ceiling 104 It may be installed on the wall of the lower floor in vertical contact with the lower ceiling 104.

Accordingly, the inter-floor noise reduction apparatus 100, 100 ′, 100 ″ according to embodiments of the present invention can be installed on the wall as well as the upper floor plate and the lower ceiling 104 of the structure where vibration is generated, Accordingly, it is possible to prevent the vibration generated in the upper floor from being transmitted to the lower floor and generating noise.

As described above, in the embodiments of the present invention, specific matters such as specific components, etc., and limited embodiments and drawings have been described, but this is only provided to help a more general understanding of the present invention, and the present invention is based on the above embodiments. It is not limited, and various modifications and variations are possible from these descriptions by those of ordinary skill in the field to which the present invention belongs. Accordingly, the spirit of the present invention is limited to the described embodiments and should not be defined, and all things equivalent or equivalent to the claims as well as the claims to be described later belong to the scope of the inventive concept.

100, 100', 100'': interfloor noise reduction device
102: upper floor plate
104: ceiling downstairs
106: lighting member
110: support
120: support
130: parts by weight

Claims (11)

A support part provided on one of the upper floor plate of the structure or the lower floor ceiling, or provided in a space between the floor plate and the ceiling;
A plurality of support beams coupled to the support portion and provided radially around the support portion; And
Includes; a plurality of weight parts respectively installed at both ends of the plurality of support beams,
The plurality of support beams are provided to linearly increase or decrease in length from the support part to one end along any one direction around the support part,
The plurality of weight portions are provided at both ends of the plurality of support beams such that the weight linearly increases or decreases in any one direction around the support portion,
The plurality of support beams and the plurality of weight parts are provided to be located at the same height from the upper floor plate of the structure or the ceiling of the lower floor, and applied to the floor plate regardless of the intensity of vibration applied to the floor plate or the position of the vibration. Interlayer noise reduction device, characterized in that to reduce or control vibration.
The method of claim 1,
The plurality of support beams and the plurality of weight portions have a function of a damper for reducing vibration applied to the floor plate.
The method of claim 1,
The plurality of weight portions are provided at both ends of the plurality of support beams by varying the weights of the plurality of weight portions to reduce or control the vibration regardless of the intensity of the vibration applied to the floor plate or the position of the vibration. Floor noise reduction device.
The method of claim 3,
The interlayer noise reduction device, characterized in that the plurality of support beams are provided to have different spring constants.
delete delete delete The method of claim 1,
The plurality of support beams, interlayer noise reduction device, characterized in that provided to linearly increase or decrease the spring constant along any one direction around the support.
The method according to any one of claims 1 to 4 and 8,
One end of the support part is coupled to the lower end of the bottom plate, and the other end of the support part is provided in a state suspended toward the ceiling,
The interlayer noise reduction device, characterized in that the plurality of support beams are coupled to the other end of the support.
The method according to any one of claims 1 to 4 and 8,
One end of the support part is coupled to the lower end of the ceiling, and the other end of the support part is provided in a state suspended downward from the ceiling,
The interlayer noise reduction device, characterized in that the plurality of support beams are coupled to the other end of the support.
The method of claim 10,
The support part, the plurality of support beams, and the plurality of weight parts are provided inside a lighting member provided on a lower surface of the ceiling or integrally provided with the lighting member.

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