KR20100040983A - Air bag embeded floating floor structure reducing floor impact noise - Google Patents

Abstract

The present invention relates to an airbag-embedded floating floor structure for reducing the noise between floors, wherein an empty space is formed between the main slab layer and the light foamed large concrete layer constituting the floor structure of the building. The airbag is designed to support the load of the upper layer. Accordingly, the air layer in the empty space can significantly reduce the transmission of noise or vibration from the upper floor to the lower floor of the floor structure.

Description

Air bag embeded floating floor structure reducing floor impact noise

The present invention relates to an airbag-embedded floating floor structure for reducing noise between floors to reduce noise generated from an upper floor in a multi-storey building.

Multi-family housing, built for efficient use of land and resolving housing shortages, is now settled in the form of housing favored by many employers.

In multi-family apartments such as apartments and villas, noise generated from the upper floor is transmitted to the lower floor, which causes discomfort and mental stress to the lower floor residents.

This noise is called floor noise. As the problem of floor noise is seriously raised in multi-unit houses, it is required to form the floor structure so that the light impact sound and heavy impact sound are below a certain standard due to the strengthening of regulations such as housing construction standards.

Various floor structures have been proposed to reduce such interlayer noise. For example, structures such as forming sound insulating materials made of various inorganic materials, organic materials, and polymer materials in the floor structure have been widely proposed.

1 is a cross-sectional view showing an example of the structure of the interlayer floor for blocking the noise between the conventional layers. As shown in FIG. 1, one form of the conventional interlayer floor structure for reducing the interlayer noise forms the interlayer sound insulation material layer 120 over the slab layer 110 formed integrally with the wall 101 and the interlayer sound insulation material layer. The lightweight foamed concrete layer 130 and the cement mortar layer 140 were formed above the 120, and the floor finishing material 150 was installed on the cement mortar layer 140.

The interlayer sound insulation layer 120 is intended to reduce the transmission of interlayer noise by reducing the transmission of vibration or shock between the lightweight concrete layer and the slab layer 110 using an elastic rubber material or the like. As one of the interlayer sound insulation layers 120, a rubber chip in which waste tires are finely crushed may be used, but the improvement of sound insulation performance is limited.

In addition, in order to form a so-called floating floor structure in which an empty space is formed between the slab layer and the lightweight foam concrete layer, a frame structure that forms a space between the slab layer and the lightweight foam concrete layer or a foot formed plate structure There have been attempts to place it.

However, the conventional floating floor structure has a limitation in improving sound insulation performance because the frame structure or foot-shaped plate structures themselves are formed as a medium for transmitting vibration or shock.

The present invention has been made to solve the above problems of the prior art, an object of the present invention to reduce the noise between floors transmitted to the lower floor in more than one building.

The above object of the present invention is a slab layer forming an interlayer floor of the building, an air bag formed on top of the slab layer, the upper support board of the plate structure disposed on top of the air bag and the upper support board It is achieved by a built-in airbag built-in bottom structure for reducing the inter-layer noise including the upper layer formed.

In order to achieve the above object, it may further include a lower support board of the plate structure disposed between the slab layer and the air bag.

In addition, the upper layer may include at least one of a bubble large concrete layer and a cement mortar layer.

In addition, a rib protruding downwardly is formed on a bottom surface of the lower support board, and a gate for air communication may be formed at a lower end of the rib of the lower support board.

In addition, between the upper support board and the slab layer may be further provided with a stopper of a sound-absorbing material having elasticity.

In addition, a sealing layer may be further formed to surround the edges of each of the upper support board and the lower support board.

In addition, a side buffer portion having elasticity and sound absorption performance may be further formed between the upper support board and the wall adjacent to the upper support board.

The airbag built-in floating floor structure for reducing the interlayer noise according to the present invention has a remarkable effect of significantly reducing the transmission of vibration and shock by forming an empty space between the slab layer and the lightweight foam concrete layer, thereby reducing the occurrence of interlayer noise. have.

In addition, since the airbag, which is made of a soft material, is used as a means for supporting the load of lightweight foam concrete to form an empty space, there is an effect of minimizing the transmission of vibration or shock through the load supporting means.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the airbag built-in floating floor structure for interlayer noise blocking according to an embodiment of the present invention.

Figure 2 is a cross-sectional view of the airbag built-in floating floor structure for interlayer noise blocking in accordance with a preferred embodiment of the present invention, Figure 3 is a bottom view of the lower support board shown in Figure 2, Figure 4 is a lower portion shown in Figure 2 Bottom perspective view of a portion of the support board.

As shown in Figure 2, the airbag built-in floating floor structure (hereinafter referred to as' floating floor structure) for inter-floor noise blocking according to a preferred embodiment of the present invention is a slab formed integrally with the wall (not shown) of the building Lower support board 10 installed on the layer 1 and the slab layer 1 and an air support 20 disposed on the lower support board 10 and an upper support board disposed above the air bag 20 ( 30) formed on the cement mortar layer 4 and the cement mortar layer 4 formed on the lightweight foamed concrete layer 3 and the lightweight foamed concrete layer 3 formed on the upper support board 30. It consists of the floor finishing material (5).

The slab layer 1 is typically connected integrally with the walls of the building and forms the lowest floor of the floor structure.

The lower support board 10 is installed above the slab layer 1. As shown in Figures 3 and 4, the lower support board 10 is a rigid plate structure and the upper surface 11 is formed flat and the lower surface is formed with a rib 12 protruding downward in a grid shape. The rib 12 of the lower support board 10 is formed with a gate 13 for air communication. Since the rib 12 of the lower support board 10 is in contact with the upper surface of the slab layer 1 and supports the lower support board 10, between the lower support board 10 and the upper surface of the slab layer 1. Some space is formed. The lower support board 10 may be made of hard plastic or inorganic or inorganic compound filled plastic, plywood, MDF (Medium Density Fiberboard), metal, etc., and satisfies the condition of maintaining the shape when a certain level of load is applied. If so, it is not limited to the materials mentioned above.

A plurality of airbags 20 are installed on the upper surface of the lower support board 10. The reason for using the plurality of airbags 20 is that the use of a plurality of airbags 20 having a smaller size than the floor area is advantageous in forming an empty space of a uniform height, and the floor area is applied to the load applied from the top of the airbag 20. This is because it can be evenly distributed throughout. The airbag 20 has a soft sealed bag structure and is filled with air therein. In this embodiment, to facilitate the process of placing the airbag 20 on the floor, a plurality of airbags 20 are connected to each other.

The material of the airbag 20 does not need to be limited to a specific material as long as it satisfies a condition of enduring a certain level of air pressure, and may be, for example, a synthetic resin material such as vinyl, a plastic film, or a sheet capable of air sealing.

The upper support board 30 is installed on the upper portion of the airbag 20. The upper support board 30 has a rigid plate structure and has a flat bottom surface in contact with the airbag 20. The upper support board 30 may be made of hard plastic or inorganic or inorganic compound-filled plastic, plywood, MDF (Medium Density Fiberboard), metal, etc., and satisfies the condition of maintaining the shape when a certain level of load is applied. If so, it is not limited to the materials mentioned above. The rib 12 may or may not be formed on the upper surface of the upper support board 30.

A sound absorbing material stopper 40 having elasticity in the lateral direction of the airbag 20 is installed between the upper support board 30 and the lower support board 10. When the stopper 40 casts lightweight foamed concrete to form the lightweight foamed concrete layer 3, the load of the lightweight foamed concrete is excessive so that the upper support board 30 excessively presses the airbag 20. Since the upper support board 30 can be settled down to the stopper 40 only to act as a safety device to prevent excessively pressing the airbag 20. Since the airbag 20 bears most of the load applied from the top, and the stopper 40 serves as an auxiliary safety device, the stopper 40 installs only about 2 to 4 around each airbag. . The stopper 40 may be made of a rubber material having elasticity and sound absorption performance, an elastomer, an PP, PE, and PU foam material having sound absorption performance.

The lightweight foamed concrete layer 3 is formed on the upper support board 30.

The cement mortar layer 4 is formed on the foamed concrete layer. Hot water pipes may be embedded in the cement mortar layer 4.

Finally, the bottom finishing material 5 is formed on the cement mortar layer 4.

Figure 5 is a front view showing the shape of the rib 12 of the lower support board 10 of the airbag built-in floating floor structure for interlayer noise blocking in accordance with a preferred embodiment of the present invention, Figure 6 is a preferred embodiment of the present invention A conceptual diagram showing air communication through the ribs 12 of the lower support board 10 of the airbag built-in floating floor structure for blocking the noise between floors.

As shown in FIG. 5, the rib 12 of the lower support board 10 is formed at a lower end thereof so as to allow air communication, and a gate 13 is formed to form a passage downward.

As shown in FIG. 6, a gap is formed between the gate 13 of the rib 12 and the top surface of the slab layer 1 in a state where the lower support board 10 is disposed on the top surface of the slab layer 1. Therefore, air located between the upper surface of the slab layer and the lower support sidewalk may communicate through the gate 13 of the rib 12.

Air may be communicated through the gate 13 of the rib 12 of the lower support board 10 so that the moisture existing in the slab layer 1 immediately after the slab layer 1 is formed is evaporated.

7 is a plan view showing an airbag-embedded floating floor structure for interlayer noise blocking according to another embodiment of the present invention. As illustrated in FIG. 7, a lateral buffer 50 of a material having elasticity and sound absorption performance is inserted between the periphery of the upper support board 30 and the wall 2 of the building.

The lateral buffer unit 50 serves to prevent the shock or vibration transmitted from the lightweight foam concrete layer 3 to the upper support board 30 to be directly transmitted to the wall 2 in the lateral direction.

Since the lateral shock absorbing part 50 has elasticity that is restored to a predetermined level after compression, when the lateral shock absorbing part 50 is inserted between the upper support board 30 and the wall, the edge of the upper support board 30 and The gap between the walls 2 can be prevented from occurring. Therefore, it is possible to prevent the light-bubble concrete poured over the upper support board 30 from counting down through the gap between the upper support board 30 and the wall.

Since the upper support board 30 is made of a hard material, it is difficult to completely adhere between the wall 2 of the building and the edge of the upper support board 30 when installing the upper support board 30 over the airbag 20. Since a gap must occur between the wall 2 and the edge of the upper support board 30, the insertion of the lateral shock absorbing portion 50 is to prevent the gap from occurring.

The lateral buffer unit 50 may be made of various materials having elasticity and sound absorption performance. For example, styrofoam, PP, PE, or PU foam material may be used.

Figure 8 is a partial cross-sectional view showing a part of the airbag built-in floating floor structure for interlayer noise blocking according to another embodiment of the present invention. As shown in FIG. 8, the floating bottom structure according to the present invention has a sealing tape 60 around each edge of the upper support board 30 and the lower support board 10 when pouring lightweight foam concrete. Lightweight foam concrete or water to prevent the penetration of between the upper support board 30 and the lower support board (10). That is, the sealing tape 60 functions as a sealing layer.

Hereinafter will be described the effect of the airbag built-in floating floor structure for interlayer noise blocking according to a preferred embodiment of the present invention.

1.airbag

The airbag 20 serves to support the weight of the lightweight foam concrete in the process of pouring the lightweight foam concrete to form the lightweight foam concrete layer 3 on the upper support board 30, and also the upper support board 30 ) And the height of the empty space between the lower support board (10).

Since the airbag 20 is a soft bag, it is seen that the portion in which the vibration or shock generated from the upper portion is transmitted by the airbag 20 is little or very weak. In other words, between the upper support board 30 positioned below the lightweight foamed concrete layer 3 and the lower support board 10 positioned above the slab layer 1, the air support is composed of only an air layer without a medium for transmitting vibration or impact. It is a structure similar to that.

The rate of transmission of vibration or shock corresponding to the dynamic wave is related to the density of the medium. This is because mechanical waves are transmitted faster and more reliably with more media that deliver them, that is, with higher densities.

Therefore, the lower the density of the medium the better to reduce the transmission of vibration or shock. The floating floor structure according to the present invention is formed between the upper support board 30 and the lower support board 10 is formed of a very low density of the air layer, so the transmission of vibration or shock can be minimized, so interlayer noise is transmitted. Is minimized.

2. Upper support board

The upper support board 30 has an airbag 20 and a light-foamed concrete layer 3 so that the light-foamed concrete layer 3 is formed on the airbag 20 when the lightweight foamed concrete is placed on the airbag 20. It functions to support lightweight foam concrete while blocking the In the floating bottom structure according to the present invention, since the upper support board 30 supports the lightweight foamed concrete above the air bag 20, the air layer is below the upper support board 30 and around the point where the air bag 20 is located. It is possible to easily form the empty space formed by.

3. Stopper

The stopper 40 functions to prevent the airbag 20 from bursting when the concrete load is excessive when the concrete is poured to form the lightweight foamed concrete layer 3 on the upper support board 30. As described above, the load acting down through the upper support board 30 can be seen that the air bag 20 bears almost all, the stopper 40 is the air bag 20 by the excessive load that may occur It acts as a safety device to prevent explosion. Therefore, the small amount of about 2 to 4 around the airbag 20 is installed so that the vibration or shock of the upper portion through the stopper 40 is negligible enough to be ignored. In addition, because the material of the stopper 40 is also formed of a material having a sound absorption function, it is possible to minimize the propagation of the interlayer noise to the lower floor.

4. Lower support board

The lower support board 10 functions to support the airbag 20 under the airbag 20.

In addition, the rib 12 formed under the lower support board 10 has a gate 13 formed at a lower end thereof, so that air positioned on the upper surface of the slab layer 1 can communicate through the gate 13. Therefore, the evaporation of moisture in the slab layer 1 is smoothed.

In the floating bottom structure according to the preferred embodiment of the present invention, the lower support board 10 is disposed below the airbag 20, but the present invention is not limited thereto, and the airbag 20 slab is disposed without the lower support board. It is also possible to arrange directly on the layer 1.

In addition, the floating floor structure according to a preferred embodiment of the present invention formed a lightweight foamed concrete layer (3), cement mortar layer (4) and the bottom finish material (5) above the upper support board 30, the present invention is limited thereto. It is also possible to form the bottom layer with other materials depending on the application. Therefore, the light-foamed concrete layer, the cement mortar layer and the floor finishing material should not be construed as limiting the scope of the present invention.

The upper support board and the lower support board used in the airbag-embedded floating floor structure according to the present invention are used by connecting a plurality of smaller than the area of the floor. This is because it is inconvenient to manufacture the upper support board and the lower support board having the size of the floor area and are inconvenient even when transporting.

In the airbag-embedded floating floor structure according to the present invention, the airbag adopts a structure in which a plurality of airbags are evenly distributed in the area of the floor, but the present invention is not limited thereto. You can use only one large size.

In addition, in the airbag-embedded floating bottom structure according to the present invention, it is also possible to use an aircap sheet in which a myriad of fine air caps are widely used for packing a product.

Figure 1 is a cross-sectional view of the structure of the interlayer floor for blocking the conventional inter-layer noise.

Figure 2 is a cross-sectional view of the airbag built-in floating floor structure for reducing the noise between the floor in accordance with a preferred embodiment of the present invention.

3 is a bottom view of the lower support board shown in FIG. 2.

4 is a bottom perspective view of a portion of the lower support board shown in FIG. 2.

Figure 5 is a front view showing the shape of the rib of the lower support board of the airbag built-in floating floor structure for reducing the noise between the floor according to a preferred embodiment of the present invention.

Figure 6 is a conceptual diagram showing the air communication through the rib of the lower support board of the airbag built-in floating floor structure for reducing the inter-layer noise in accordance with a preferred embodiment of the present invention.

7 is a plan view showing an airbag-embedded floating floor structure for reducing noise between floors according to another embodiment of the present invention.

Figure 8 is a partial cross-sectional view showing a part of the airbag built-in floating floor structure for reducing the noise between the floor according to another embodiment of the present invention.

Claims (7)

A slab layer forming an interlayer floor of the building; An air bag formed on the slab layer; An upper support board of a plate structure disposed above the air bag; And Airbag built-in floating structure for reducing the interlayer noise comprising an upper layer formed on the upper portion of the upper support board. The method of claim 1, An airbag built-in floating structure for reducing inter-layer noise, further comprising a lower support board of a plate structure disposed between the slab layer and the airbag. The method of claim 1, The upper layer is an airbag-embedded floating floor structure for reducing the interlayer noise, characterized in that it comprises at least one of a bubble large concrete layer and a cement mortar layer. The method of claim 2, A rib protruding downwardly is formed on a bottom surface of the lower support board, and a gate for air communication is formed at a lower end of the rib of the lower support board. The method of claim 1, Between the upper support board and the slab layer is a built-in airbag built-in floor structure for reducing noise between floors, characterized in that the stopper of the sound-absorbing material having elasticity is further installed. The method of claim 2, Air bag built-in floating structure for reducing the inter-layer noise, characterized in that the sealing layer is further formed so as to surround around each edge of the upper support board and the lower support board. The method of claim 2, Between the upper support board and the upper support board and the wall adjacent to the lateral buffer having elastic and sound-absorbing performance is further characterized in that the airbag built-in floating floor structure for noise reduction between floors.

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