KR102018586B1 - Point Support Type-Dampening Apparatus - Google Patents

Abstract

According to the present invention, provided is a vibration-proof apparatus for a point support structure, which is installed on a floor structure, including: a noise between floors buffering material provided on an upper portion of a concrete slab; bubble concrete stacked on an upper portion of the noise between floors buffering material; and a finishing mortar layer installed on an upper portion of the bubble concrete to be stacked thereon. The vibration-proof apparatus for a point support structure comprises: a vibration-proof material inserted into a penetration part formed on an impact buffering material; a bolt in which an end portion is fixed to the sound-proof material; a first nut and a second nut fastened to the bolt; a washer in which a sound-proof pad provided to close a hole of the penetration is attached to an upper portion of the second nut; and a third nut fastened to a second end portion of the bolt so as to be provided on an upper surface of the bubble concrete.

Description

Point Support Type-Dampening Apparatus

The present invention relates to a dustproof apparatus of a point support structure. More specifically, the interlayer noise cushioning material installed to solve the interlayer noise generated in the floor structure is intended to solve the resonance and resonance of the air layer caused by the deterioration of the function of the interlayer noise buffering material according to the floor area and the deflection of the floor slab and the slab deflection. The present invention relates to a dustproof apparatus of a point support structure, which is additionally installed in an interlayer noise absorber.

In general, when a person jumps or falls on the floor, the floor vibrates to generate a floor impact sound. This floor impact sound is transmitted to the upper layer through the floor or the lower floor through the floor to cause noise by vibration. Such a floor impact sound is divided into a light impact sound and a heavy impact sound.

Lightweight impact sound is a relatively light, hard impact floor impact sound with a legal threshold of 58 decibels or less. This is mainly a high-pitched sound that occurs when a small object falls or moves on furniture. The impact is small and the duration is short. Such a lightweight impact sound can be easily made below the reference value by the material of the interlayer noise absorbing material.

On the contrary, the weight impact sound is a floor impact sound caused by a relatively heavy and soft impact, and the reference value is 50 decibels or less. It is a low-end sound generated downstairs by heavy impact when a child runs or runs, and has a high impact and long duration.

The sound of floor noise in apartments is such a heavy impact sound.

Therefore, the floor noise cushioning material installed on the floor of the living room according to the construction method ondol floor must have heat resistance and durability, and at the same time, it is required to satisfy the inter-floor floor regulations for the light impact sound and the heavy impact sound.

On the other hand, since 2015, the Ministry of Land, Transport and Maritime Affairs 2015-319 Standard Floor Structure-1, which forms ondol floors in multi-family houses based on the interlayer floor impact sound isolation structure standard for noise prevention, will be explained first. It is a structure that installs over 20mm cushioning material having performance and casts bubble concrete on it and puts finishing mortar on it, or installs more than 40mm buffer material on the top of concrete slab as in standard floor structure-2 and without foaming concrete. It is a method to pour the finishing mortar after installing the hot water pipe on the upper part.

In case of using the high density buffer material as the interlayer noise buffer in the standard floor structure as described above, the legal allowance for light weight and heavy impact sound is not secured, so the interlayer noise buffer material of the low density EPS series of about 17-15 kg / ㎥ is mainly used. However, due to the lack of density of the buffer material, the floor is turned off, the hardening phenomenon caused by the absorption of cement water, the lack of walking feeling, etc., and the complaints are increasing rapidly than in the past.

In this regard, patent registration 10-1220212 is designed to insert an elastic body of a circular column into a hole penetrating through the foam concrete and the finishing mortar, but the elastic body (dustproof rubber) is not supported by a solid floor concrete but is supported by an interlayer noise buffer material of insulating material. Therefore, the inherent function of the elastic body is lost depending on the density of the interlaminar noise buffer and the amount of residual strain.

In addition, the patent (Patent Patent Publication No. 10-2017-0096696) is a structure that interferes with the properties of the interlayer noise buffer material by inserting a separate elastic buffer foot in the cushioning material, depending on the density of the cushioning material, the residual bottle shape and the shape of the concrete slab irregularities There is a problem in that the effect is unclear depending on the close contact between the elastic shock and the slab floor.

Due to the problems that occur with the existing interlayer

First, insulation materials on the floor of the living room should be heat resistant and durable, and have strength to withstand the loading and fixed loads of the upper part of the building method ondol structure. As the regulation of density (above 25kg / m 3) has been abolished, the interlayer noise buffer material of low density (15.5 ~ 17kg / m 3) EPS material has been mainly used to obtain high performance grade of floor shock sound blocking structure. However, when the interlayer noise buffer material with low density and dynamic modulus of elasticity is used, the impact shock performance of the floor impact sound is excellent, but there are new problems such as hardening due to absorption of cement paste and lack of walking feeling when walking barefoot. do.

Second, the horizontal level of the standard laboratory of the accredited laboratory for the interlayer finished material certification test is almost horizontal, within 3m and within 7mm, but the actual apartment site to be applied is poorly smooth due to the unevenness of the slab. Even in the structure, the span length between walls is different depending on the design of balance, room, and wall. In case of the center of slab, 20 ~ 30mm bottom deflection occurs in the center part of slab. Its function is difficult to maintain.

Due to the above reasons, the function of the cushioning material is lowered and even an air layer is formed between the concrete slab and the finished material due to the slab deflection, and the resonance action occurs due to the spring action of the air layer. The result of the test that the graded cushioning material was actually tested in the field shows that many side effects occur such as out-of-standard results of below grade 4 as shown in Table 1 below. In the ondol structure to which regulations are applied, inter-layer noise complaints are increasing rapidly.

Table 1 shows the change of sound insulation grade according to the floor slab area when using the same interlayer sound absorbing material.

Sound insulation grade (less than 50) according to slab thickness and area at heavy impact Slab thickness
(mm) Slab area (㎡) 12 15 20 25 30 35 40 45 50 130 L-55 L-55 L-60 L-65 L-65 L-65 L-65 - - 150 L-50 L-55 L-55 L-60 L-60 L-60 L-60 L-65 L-65 180 L-45 L-50 L-50 L-55 L-55 L-60 L-60 L-60 L-60 200 L-45 L-45 L-50 L-50 L-55 L-55 L-55 L-60 L-60 230 - L-45 L-45 L-50 L-50 L-55 L-55 L-55 L-60 250 - - L-45 L-50 L-50 L-55 L-55 L-55 L-55

In order to solve this problem, the thickness of slabs in concrete is increased in the multi-family houses, and the thickness of the flooring material is increased by using expensive EVA or laminated EPS and EVA in the existing EPS material. When the shock absorber is not in contact with the floor of the concrete slab and the interlayer noise absorber is not functioning due to the different conditions of the certification laboratory's standard laboratory such as the resonance resonance of the air layer, the thickness of the concrete slab and the interlayer noise absorber is increased. The additional cost is passed on to the tenant.

The purpose of the present invention is to solve the problems of the prior art as described above, the floor noise reduction effect is different depending on the floor slab area to be applied to the interlayer noise absorbing material installed to solve the interlayer noise and the air slab generated by the bottom slab irregularities or slab deflection. In order to compensate the resonance of the resonance, it is to provide an additional dust-proof device of the point support structure that can damp the vibration.

In order to achieve the above object, according to the present invention, the interlayer noise cushioning material disposed on the top of the concrete slab as in the standard floor structure-1 example, the foamed concrete laminated on top of the interlayer noise buffering material, and the foam concrete An anti-vibration device of a point support structure, which is additionally installed in a floor structure including a finished mortar layer that is poured and stacked on top.

Dustproof material inserted into the through portion formed in the impact buffer,

A nut bolt having a first end fixed to the dustproof material;

A first nut and a second nut fastened to the bolt,

Washer with a dust pad is disposed to close the hole of the second nut and the shock absorber,

A dustproof device of point support structure is provided, having a third nut fastened to a second end of the bolt to be disposed on an upper surface of the foamed concrete.

According to one feature of the invention, the third nut is arranged to fit the upper surface (denba) of the foam concrete, thereby maintaining a uniform thickness of the finishing mortar layer during pouring of the upper finishing mortar layer.

In addition, according to the present invention, as a dust-proof device of the point support structure which is installed in the standard floor structure-2 including an interlayer noise cushioning material disposed on the top of the concrete slab and a finishing mortar layer which is poured and stacked on top of the interlayer noise buffering material. ,

Anti-vibration material is inserted into the through portion formed in the shock absorbing material of the standard floor structure,

A bolt having a first end fixed to the dustproof material,

A first nut and a second nut fastened to the bolt,

A dust support device having a point support structure is provided, which has a washer having a dust pad attached to a lower surface of the second shock nut and a lower surface of the shock buffer member.

According to another feature of the invention, the finishing mortar layer is poured to cover the washer and the bolt.

Due to the inverse relationship between the density of the interlayer noise buffer material and the effect of reducing the weight impact sound, the bottom sagging problem caused by the use of a low density EPS material buffer material having high absorption rate and hardening of the buffer material generated when water was absorbed during the mortar pouring process. It is possible to solve the present problems such as reducing the impact effect, mold, and walking comfort by adding an independent dustproof device to the interlayer noise buffer, so that it is possible to apply the interlayer noise buffer without XPS such as XPS.

In addition, the present invention has a floor area wider than the standard floor laboratory size of the official institution or the concrete slab irregularities of the horizontal level as shown in FIG. It is seated and supported on the uneven surface to faithfully perform the spring function of the dustproof material so that the same light weight and heavy impact sound level as the test room at any position can be maintained.

On the other hand, the present invention is a correction device for installing a point support structure in the existing interlayer cushioning material can be applied to the interlayer buffer of all existing materials and thicknesses, and the concrete slab thickness or interlayer soil in the long span wall structure larger than the standard test room of the certification body. By reducing the number of vibration dampers 100 by structural type or floor area, or by adjusting the hardness of the elastic member 130, which is a component of the vibration damper, rather than increasing the thickness of the shock absorber, it is possible to reduce the weight impact sound and reduce the burden of increasing the cost of the tenant. have.

1 is a schematic configuration diagram of a dustproof apparatus of a point support structure according to an embodiment of the present invention.
2 is a configuration diagram of the standard floor structure-1 and the standard floor structure-2.
3 is a cross-sectional view showing a state in which the dustproof apparatus of the point support structure according to the embodiment of the present invention is installed in the standard floor structure-1.
4 is a cross-sectional view showing a state in which a dustproof device of a point supporting structure according to another embodiment of the present invention is installed on a standard floor structure without a bubble concrete layer.
FIG. 5 shows a state in which the dustproof body is seated and supported on the bottom uneven surface by gravity independently of the interlayer noise buffer in the concrete slab uneven surface of poor level concrete slab, and faithfully performs the spring function of the dustproof material. It is a cross section.
FIG. 6 is a conceptual view illustrating that a plurality of dustproof devices form an independent support structure separately from the interlayer noise absorber 200.

Hereinafter, with reference to the embodiments shown in the accompanying drawings the present invention will be described in more detail.

1 is a schematic configuration diagram of a dustproof apparatus of a point support structure according to an embodiment of the present invention, Figure 2 is a schematic diagram of the standard floor structure-1 and the standard floor structure-2, Figure 3 is a standard floor structure It is sectional drawing which shows the state which the dustproof apparatus of the point support structure which concerns on -1 at one Embodiment is installed.

Referring to the drawings, the standard floor structure-1 having a bubble layer has an interlayer noise buffer 200 disposed on an upper portion of the concrete slab CS, and an upper portion of the interlayer noise buffer 200 as shown in FIG. 3. Laminated aerated concrete 250 and a finish mortar layer 300 is placed on top of the foam concrete 250 and laminated, the finishing mortar layer 300 may be provided with an ondol pipe (P) piping have. The interlayer noise absorbing material 200 may use an existing EPS material or XPS material, EVA material, or a combination of the above materials. The top surface of the finishing mortar layer 300 may be provided with a bottom finish (BF).

The dustproof apparatus 100 of the point support structure according to the present invention includes a dustproof member 130 inserted into a through part 240 formed in the interlayer noise buffer 200 of FIG. 2 and the dustproof member 130. Close the bolt 140 fixed by the first nut 135, the second nut 150 fastened to the bolt 140, and the hole of the through part 240 on the second nut 150. A washer 160 having an anti-vibration pad 155 disposed thereon and a third nut 180 fastened to the second end of the bolt 140 to be disposed on the upper surface of the foamed concrete 250.

The second nut 150 is located in accordance with the level of the upper surface of the interlayer noise absorbing material 200 in each through part 240, which is due to the irregularities of the concrete slab CS. This is because the height of the upper surface of the can be different from each other. The washer 160 to which the anti-vibration pad 155 is attached is disposed to be seated on the upper surface of the interlayer noise absorbing material 200 at the top of the second nut 150. The diameter of the washer 160 to which 155 is attached is larger. The washer 160 to which the anti-vibration pad 155 is attached is sealed to the concrete slab CS through the penetrating part 240 when pouring the bubble concrete 250 or the finishing mortar layer 300 by sealing the penetrating part 240. Excess moisture is not introduced, and also serves to maintain the verticality of the bolt 140 coupled with the vibration isolator 100.

The bolt 140 in the vibration isolator 100 may be factory manufactured integrally with the vibration isolator 130 and may be configured in a combination such that the bolt length or the bolt diameter may be varied according to the finishing height and the upper load. The first nut 135 serves to combine the bolt 170 and the dustproof member 130 to be integrated with each other when configured in a combination.

The third nut 180 is fastened to the second end of the bolt 140 so as to be fitted to the upper surface (denba) of the foamed concrete 250, and the third nut 180 is disposed in position. When the aerated concrete 250 is poured, the level of the foam concrete is maintained, and when the finishing mortar layer 300 is poured later, a uniform finish mortar thickness can be maintained. As a result, the finishing mortar layer 300 having a uniform thickness due to the third nut 180 may secure the same thickness and the same rigidity as the bottom structure through a curing process for a certain period of time. As shown in FIG. 3, the third nut 180 is formed to have a width wider than that shown in FIG. 1, thereby maintaining a constant thickness of the mortar layer and impacting the mortar layer 300. To be supported by bolts.
In the dustproof device 100 having the point support structure configured as described above, the first shock is exhausted through the dustproof pad 155 between the washer 160 and the secondary nut 150 generated by the heavy impact sound or vibration generated from the finishing mortar 300. The residual vibration sound is transmitted to the lowermost dustproof material 130 through the second nut 150 and the bolt 140 to thereby carry a heavy impact sound or vibration through the elasticity of the dustproof rubber of the dustproof material 130 supported by the concrete slab CS. It can absorb.

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In addition, the anti-vibration pad is made of the same material as the anti-vibration material or elastic rubber such as soft rubber, but is firmly adhered to the surface of the interlayer noise buffer material by adhesive tape treatment.

That is, when the cement mortar is cured to ensure uniform stiffness, the dust-proof device having a point support structure disposed at regular intervals prior to the interlayer noise buffer 200 having a heavy impact sound applied to the integrated concrete bottom plate ( 100 disperses the impact, thereby forming a structure in which the dustproof member 130 absorbs the impact.

4 is a cross-sectional view showing a state in which the dustproof device of the point supporting structure according to another embodiment of the present invention is installed in the standard floor structure-2 without the bubble concrete layer.

Referring to the drawings, the feature of the standard floor structure-2 shown in FIG. 4 is that unlike the standard floor structure-1 of FIG. 1, the foamed concrete 250 is not constructed.

Standard floor structure-2 having no bubble layer includes an impact buffer 200 disposed on the top of the concrete slab CS, and a finish mortar layer 300 that is poured and stacked on the impact buffer 200. The finishing mortar layer 300 may be provided with an ondol pipe (P) piping.

The dustproof apparatus 100A of the point support structure according to another embodiment of the present invention includes a dustproof member 130 inserted into a through portion 240 formed in the impact buffer member 200 of the standard floor structure, and the dustproof member 130. Close the bolt 140 fixed by the first nut 135, the second nut 150 fastened to the bolt 140, and the hole of the through part 240 on the second nut 150. And a washer 160 to which the anti-vibration pad 155 is disposed. Finishing mortar layer 300 is poured to cover the fin washer 160 and bolt 140.

In the vibration isolator 100A configured as described above, when the finishing mortar layer 300 having a uniform thickness secures the same thickness and stiffness as the bottom plate through a curing process for a predetermined period, the weight impact sound generated in the finishing mortar layer 300 By the first exhaust through the dust-proof pad 155 between the washer 160 and the secondary nut 150 and the remaining vibration sound is transmitted to the dust-proof material 130 disposed at the bottom through the bolt 140, 유연성 flexibility of the dust-proof material It will absorb the weight impact sound.

As shown in FIG. 5, even though the floor surface of the concrete slab uneven surface or the deflection of the concrete slab caused by the horizontal failure is insufficient, the contact surface between the concrete slab and the concrete slab does not function properly, thereby penetrating the interlayer noise buffer 200. The dustproof body 100 inserted into the 240 is seated and supported on the bottom slab uneven surface independently by its own gravity without being interfered with the interlayer noise absorbing material 200 to faithfully perform the shock absorbing function due to the elasticity of the dustproof material. It becomes possible.

Fig. 6 shows the interlayer noise absorbing material in which a through portion is formed, into which a vibration isolator of a point support structure according to the present invention is inserted. The through portions 240 formed in the interlayer noise absorbing material 200 may be formed at equal intervals or may be formed at different intervals, depending on the size or shape of the floor slab. The dustproof member 130 shown in FIG. 1 is inserted into the through part 240, and the upper opening of the through part 240 is sealed with a washer 160 to which a dust pad 155 is attached. 6, it can be understood that the plurality of dustproof apparatuses 100, 100A, 100B form an independent support structure separately from the interlayer noise absorbing material 200. As shown in FIG.

200. Shock Absorber 250. Foamed Concrete
130. Dustproof material 300. Finished mortar layer

Claims (5)

The impact buffer 200 disposed on the concrete slab CS, the foamed concrete 250 stacked on the impact buffer 200, and the finishing mortar that is poured and stacked on the foam concrete 250. The layer 300, the dustproof member 130 inserted into the penetrating portion 240 formed in the shock absorbing material 200, variablely applied to vary the bolt length or bolt diameter according to the hardness or finish height and upper load of the dustproof material In the dustproof apparatus of the point support structure which is installed in the floor structure consisting of the combination of the vibration damper 130, the bolt 140 and the primary nut 135 so that,
The second nut 150 is positioned at the level of the upper surface of the interlayer noise absorbing material 200 in each of the through portions 240, and the washer 160 to which the anti-vibration pad 155 is attached is the through portion 240. Sealed to prevent excess moisture from entering the concrete slab CS through the through part 240 and dustproof than the diameter of the through part 240 so as to maintain the verticality of the bolt 140 coupled with the vibration isolator 100. The diameter of the washer 160 to which the pad 155 is attached is larger and disposed so as to be seated on the upper surface of the interlayer noise buffer 200 at the top of the second nut 150.
It further comprises a third nut 180 disposed on the upper surface of the foam concrete 250 and formed in an enlarged width, while maintaining a constant thickness of the mortar layer 300 while receiving the mortar layer 300 The vibration isolator of the point support structure characterized in that the impact is supported by the bolt.



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