KR101462969B1 - Noiseproof measures between floors applying double floating structures and hollow core - Google Patents

Abstract

Provided is a hollow floor structure capable of reducing interlayer noise, including a base plate provided with a plurality of grooves and first protrusions on the top surface, in which the first protrusions are arranged to have an interval to receive and fix a hot water pipe, and provided with a plurality of second protrusions corresponding to the first grooves and a plurality of second grooves corresponding to the first protrusions on the bottom surface, the base plate having a base penetrating the base plate to extend downwardly more than the second protrusion; an EPS insulation pad formed with fitting holes for receiving the base, and provided below the base plate to form a sealed space therebetween, the insulation pad being provided with a plurality of third grooves facing the installation surface on the bottom surface; a sound absorption material filled in the sealed space; an anti-vibration foot mounted in a lower end of the base exposed or protruding through the fitting hole, and then being installed in the installation surface; and a foamed PE sheet interposed between the anti-vibration foot and lightweight aggregate provided in a recessed portion of a slab. It is possible to absorb the frictional sound between materials due to vibration caused by impact load; to effectively control low noise; save thermal energy by increased heat storage; suppress movement of the insulation pad to improve the durability; and reduce various noises as well as impact noise.

Description

[0001] The present invention relates to a hollow double bottomed floor structure for reducing noise of a floor impact,

[0001] The present invention relates to a hollow double bottomed floor structure which is a type of a floor slab floor structure of a apartment house, and more particularly to a hollow double bottom floor structure which is easy to construct a hot water pipe, The present invention relates to a double-floored floor structure.

Generally, an interlayer noise prevention structure of a composite structure is formed by sequentially installing an insulation layer, a foamed concrete layer, and a hot water pipe on a reinforced concrete slab, and then forming a finishing mortar layer on the reinforced concrete slab together with a wire net. However, among the elements of the interlayer noise prevention structure, the foamed concrete layer is not only required to mobilize the casting equipment but also has a complexity and construction difficulties such as the cement being applied by the workforce. In particular,

In order to solve the problem caused by the foamed concrete layer, Korean Patent No. 10-0811747 entitled " Asphalt Noise Reduction Material of Buildings and a Construction Method Using the Same " In the foamed concrete panel used in place of the pouring step, when the foamed concrete panel is used based on 50 parts by weight of the cement, 20 to 50 parts by weight of foamed foamed styrofoam are used, and coarse fibers are blended in a proportion of 5 to 10 parts by weight And is provided in sheet form by interpolating a lattice structure into the compound composition.

However, even when such a foamed concrete panel is used, the conventional interlayer noise preventing structure causes the upper-end mortar layer to settle and cause cracking due to shrinkage of the foamed concrete panel or breakage due to load transfer after application, The floor impact sound of each floor according to Article 14 (3) of the Housing Construction Standard, etc. is less than 58dB of light weight impact sound and the weight It does not meet the sound insulation standard of impact noise of 50dB or less. In addition, the foamed concrete panel has a problem in that it takes a lot of time for curing in winter, for example, more than 10 days, which lowers the productivity.

In addition, EPS (expandable polystyrene, also referred to as "styrofoam"), which is mainly used as a heat insulating material, tends to be compacted due to the load applied from the upper side in contact with the upper part of the slab structure. And had a problem of causing the settlement to increase with the cause. In addition, when a hot water pipe is installed on the floor, a hot water pipe made of a synthetic resin material such as an XL pipe is bent, and a fixed U-clip like a U- The XL pipe must be fixed by using the device, so that the installation work is difficult and time-consuming.

In order to solve such a problem, the present applicant has filed and registered a floating floor material for preventing interlayer noise using a double-sided concave-convex structure of Korean Patent No. 10-1355696. This is because the floor material installed on the slab The base plate; An upper surface concave-convex portion and a lower surface convex portion formed by a plurality of concave-convex structures arranged on the upper surface and the lower surface of the base plate, respectively; And a plurality of protrusions formed on the lower surface of the base plate and spaced apart from the slab, wherein the base plate is provided at a lower side of the base plate, And a heat insulating pad made of an EPS material and formed so as to protrude downward around the through hole. The heat insulating pad may be made of an EPS material.

Floating floors for preventing interlayer noise using the conventional double-sided concave-convex structure improve the quality of the floor structure by omitting the use of foamed concrete causing settlement and cracking, excellent noise insulation and insulation effect, And to reduce costs, and to facilitate the installation of hot water pipes and the adjustment of piping intervals of hot water pipes. However, in spite of the advantages of the prior art, especially in the case of hollow double floored floors, the transmission loss is advantageous in the middle range compared to a single floor having a mass of the same permeation loss, do. In addition, there has been a need to improve the ease of installation such as noise isolation, insulation, and installation of hot water pipes in connection with consumer demands, energy saving policies, and economical construction requirements.

In order to solve the problems of the prior art as described above, the present invention enables a one-touch construction of a hot water pipe, resolves the resonance phenomenon caused by an impact load as much as possible, , The heat energy is saved by the improvement of the heat storage effect, the durability is improved by suppressing the flow of the heat insulating pad, and the noise reduction and blocking effect such as heavy impact noise is excellent. Other objects of the present invention will become readily apparent from the following description of the embodiments.

In order to achieve the above object, according to one aspect of the present invention, there is provided a hollow double floated floor material installed on a slab so as to prevent interlayer noise, wherein a plurality of first groove portions and first protrusions are formed The first protrusion is arranged to have an interval for inserting and fixing the hot water pipe, and a second protrusion corresponding to the first groove and a second groove corresponding to the first protrusion are formed on a lower surface of the first protrusion, A base plate formed to penetrate up and down and having a receiving portion extending downward from the second protruding portion; A plurality of third grooves are formed on the lower surface of the base plate so as to face the mounting surface so that a closed space is formed between the base plate and the base plate, An insulating pad made of EPS; A sound absorbing material filled in the closed space; A dustproof foot mounted on a mounting surface mounted on a lower end of a receiving portion exposed or protruded downward through the fitting hole; And a foamed PE sheet disposed between the dustproof foot and the lightweight aggregate provided so as to correspond to the unevenness of the slab, and a hollow double bottomed floor structure for reducing the interlaminar impact noise.

Wherein the base plate is formed such that the first groove portion forms a plurality of rows and the support portion is arranged in a row of a part or all of the plurality of rows together with the first groove portion, And each set may be formed so as to be alternately arranged with the first groove portion in the row or may be alternately arranged with the first groove portion and the receiving portion.

Wherein the base plate comprises: a first row in which the first grooves are arranged in a plurality; And a second row in which the first groove and the receiving portion are alternately arranged, wherein the first and second rows are alternately arranged in the width direction or the longitudinal direction, and the first and second rows are alternately arranged in the width direction or the length direction, The groove portion and the receiving portion may be formed so as to be arranged in a zigzag manner, and each set may be arranged in a staggered manner.

The first protrusions may be formed in the base plate such that a line passing through the center between the first protrusions in each set has an angle of 2 to 7 degrees with respect to the width direction or the longitudinal direction.

The base plate is formed so that its rim extends vertically downward so that the heat-insulating pad is fitted on the rim. The heat-insulating pad can be supported on the dust-proof foot with a protrusion formed to surround the lower end of the base .

The sound absorbing material may include a porous lightweight aggregate having a diameter of 2 to 5 mm and a polyester fiber filled in the closed space to form an air layer on the upper part of the closed space.

The dustproof foot is formed at the upper end of an insertion portion slidably coupled to the receiving portion so as to be adjustable in height up and down. The insertion portion is provided with a latching portion for preventing separation from the receiving portion. , And the sum of the areas occupies 4 to 7% of the area of the base plate, and the thickness of the portion excluding the insertion portion may be 10 to 17 mm.

The foamed PE sheet may be installed on the porous lightweight aggregate which is installed on the upper surface of the slab and undergone the background adjustment when a height difference of 10 mm or more is formed on the upper surface of the slab.

According to the hollow double bottomed floor structure for reducing the interlaminar impact noise according to the present invention, the one-touch construction of the hot water pipe is enabled, and the permeation loss is improved by filling the air layer with the porous lightweight aggregate or PE sheet sound absorbing material The secondary noise due to the friction between the base plate and the heat insulating pad is suppressed and the resonance due to the impact load can be solved by solving the resonance transmission loss at the lowest frequency by introducing the sound absorbing material, It is possible to save heat energy by enhancing the heat storage effect, improve the durability by suppressing the flow of the heat insulating pad, and excellently reduce and shield various noises including heavy impact noise.

FIG. 1 is a plan view showing a hollow double bottomed floor structure for reducing interlayer shock noise according to an embodiment of the present invention.
2 is a cross-sectional view taken along the line AA in Fig.
3 is a cross-sectional view taken along line BB in Fig.
4 is a perspective view illustrating a base plate of a hollow double bottomed floor structure for reducing interlayer shock noise according to an embodiment of the present invention.
5 is a bottom perspective view illustrating a base plate of a hollow double bottomed floor structure for reducing interlayer shock noise according to an embodiment of the present invention.
6 is a plan view for explaining the arrangement of the first protrusions of the hollow double bottomed floor structure for reducing the interlaminar impact noise according to one embodiment of the present invention.
7 is a side cross-sectional view for explaining a vibration-damping foot coupling structure of a hollow double bottomed floor structure for reducing interlayer shock noise according to an embodiment of the present invention.
FIG. 8 is a plan view showing a heat insulating pad of a hollow double bottomed structure for reducing interlayer shock noise according to an embodiment of the present invention. FIG.
9 is a bottom perspective view illustrating a heat insulating pad of a hollow double bottomed structure for reducing interlayer shock noise according to an embodiment of the present invention.
10 is a side cross-sectional view illustrating a heat insulating pad of a hollow double bottomed bottom structure for reducing interlaminar impact noise according to an embodiment of the present invention.
11 is a plan view showing a state in which a hot water pipe of a hollow double bottomed floor structure for reducing interlayer shock noise according to an embodiment of the present invention is installed.
12 is a cross-sectional view showing another example of a dustproof foot in a hollow double bottomed floor structure for reducing interlayer shock noise according to an embodiment of the present invention.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in detail in the drawings. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention, And the scope of the present invention is not limited to the following examples.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant explanations thereof will be omitted.

FIG. 1 is a plan view showing a hollow double bottomed floor structure for reducing the interlaminar impact noise according to an embodiment of the present invention. FIG. 2 is a sectional view taken along line AA in FIG. 1, Fig.

1 to 3, a hollow double bottomed floor structure 100 for reducing the interlaminar impact noise according to an embodiment of the present invention includes a base plate 110, a heat insulating pad 120, a sound absorbing material 130, A foot 140 and a foamed PE sheet 150.

The base plate 110 is formed such that a plurality of first groove portions 111 and a plurality of first protrusions 112 are formed on the upper surface of the base plate 110. The first protrusions 112 are inserted into the hot water pipe 210, And a second groove portion 114 corresponding to the first groove portion 111 and a second groove portion 114 corresponding to the first projection portion 112 are formed on the lower surface, And the receiving portion 115 is formed so as to pass through the upper and lower portions and extend downward from the second protruding portion 113.

The base plate 110 may be made of various materials including, for example, PE (Polyester), PP (Polypropylene), and PET (polyethylene). Here, the first protrusion 112 may have a rod shape of 60 mm in diameter, for example. The first groove portion 111, the second projection portion 113, the second groove portion 114, and the receiving portion 115 may have a circular shape. In addition, for example, the receiving portion 115 can be configured to have twelve positions per square meter.

The base plate 110 may be formed such that the first trench 111 forms a plurality of rows and a part or all of the rows of the plurality of rows may be arranged with the first trench 111 together with the heat receiving portion 115 And first protrusions 112 are arranged in a quadrangular shape. The first protrusions 112 are formed so as to form a plurality of sets, and the respective sets may be alternately arranged with the first recesses 111 in the rows. Alternatively, And the receiving portion 115, as shown in Fig. The base plate 110 may include a first row in which a plurality of first groove portions 111 are arranged and a second row in which the first groove portion 111 and the receiving portion 115 are alternately arranged, And the second row may be alternately arranged in the width direction or the longitudinal direction. In the first and second rows, the first groove portion 111 and the receiving portion 115 are arranged in a staggered arrangement. In addition, And the protrusions 112 may be arranged in a staggered arrangement. The first protrusions 112 are engaged with the upper ends of the hot water pipes 210 on the side faces of the other first protrusions 112 facing each other in the set so that the hot water pipes 210 are prevented from being easily detached. (See FIG. 6) may be formed, and a pair of locking protrusions 112a, which are arranged to form 90 degrees as in the present embodiment, may be formed.

The base plate 110 may have a plurality of coupling protrusions 118a on a pair of sides adjacent to each other at an edge thereof and a plurality of coupling holes 118b may be formed at a pair of sides of the base plate 110. Accordingly, the plurality of base plates 110 can be coupled with each other so as to be in horizontal contact with each other through the engaging projections 118a and the engaging holes 118b.

4 and 5, the base plate 110 is formed so that the rim 117 extends vertically downward so that the heat insulation pad 120 (shown in Figs. 2 and 3) is fitted on the rim 117 .

6, the base plate 110 is formed such that a line O1 or O2 passing through the center between the first protrusions 112 in each set of the four first protrusions 112 extends in the width direction W Or an angle? 1 of 2 degrees to 7 degrees, for example, 5 degrees, with respect to the longitudinal direction L. The first protrusion 112 may be formed to have an angle? When the line O1 or O2 passing through the center between the first protrusions 112 in each set forms an angle? 1 of 5 degrees with respect to the width direction W or the longitudinal direction L, as in the example, The angle? 2 formed by the line L1 passing through the center of the first protrusion 112 in the diagonal direction and the width direction W may be 40 degrees.

2 and 3, the heat insulating pad 120 has a fitting hole 121 through which the receiving portions 115 are inserted, and the base plate 110 And a plurality of third grooves 122 are formed on the lower surface so as to face the mounting surface and are made of EPS (also referred to as "expandable polystyrene", also referred to as "styrofoam"). In addition, the heat insulating pad 120 can support the protruding portion 224, which is formed to surround the lower end of the receiving portion 115, on the vibration preventing foot 140 to reduce the friction noise generated between the internal materials. 9, the heat insulating pad 120 may be formed with a support rib 123 at the edge thereof to be fitted inside the rim 117 of the base plate 110. As shown in Fig.

Referring to FIGS. 8 to 10, the second protrusions 113 may be spaced apart or inserted according to the vertical width of the closed space.

The sound absorbing material 130 is filled in a closed space formed between the base plate 110 and the heat insulating pad 120. At this time, an air layer may be formed on the upper part of the closed space. Further, the sound absorbing material 130 may include porous lightweight aggregate having a diameter of 2 to 5 mm and polyester fibers, and they may be stacked to form respective layers, filled with each other in a mixed state, or filled in a closed space in various other ways .

The dustproof foot 140 is attached to the lower surface of the receiving part 115 exposed downward through the fitting hole 121 and is installed on the mounting surface so that the base plate 110 and the heat insulating pad 120 are separated from the mounting surface An insertion portion 141 may be formed to be inserted into an insertion hole 116 (shown in FIG. 7) formed in the receiving portion 115, for example, . In addition, the dustproof foot 140 may have a diameter of 43 mm, for example, and may have a diameter of 36 per square meter.

7, the dustproof foot 140 may include an insertion hole 141 at the lower end of the receiving portion 115 and an insertion portion 141 slidably coupled to the upper portion of the receiving hole 115 so as to be adjustable in height, The engaging portion 142 may be formed on the inserting portion 141 to prevent the receiving portion 115 from separating from the insertion hole 116. The engaging portion 142 may be made of rubber having a hardness of 60 ± 5, May be 4 to 7%, for example, 5% of the area of the base plate 110, and the thickness of the portion excluding the insertion portion 141 may be 10 to 17 mm. On the other hand, the anti-vibration foot 140 is installed so as to be raised and lowered so as to be properly supported on the mounting surface from the base plate 110 when the flatness of the mounting surface is not smooth. At this time, The mortar is fixed to the installed height by being filled in the inside of the receiving portion 115 and hardened.

2 and 3, the foamed PE sheet 150 is installed between the lightweight aggregate 160 and the dustproof foot 140 installed to correspond to the irregularities of the slab 10, The slab 10 may be installed on the porous lightweight aggregate 160 that has been placed on the upper surface of the slab 10 and has undergone the background adjustment when a height difference of 10 mm or more occurs on the upper surface of the slab 10 due to low quality such as cracks .

12, the vibration proof foot 140A according to another example is fixed to the insertion hole 116 of the receiving portion 115 so as not to be vertically moved, so that the insertion portion 114A shortened in comparison with the previous example is formed .

The operation of the hollow double bottomed floor structure for reducing the interlaminar impact noise according to the present invention will now be described.

In the conventional hot water pipe piping method, most of the conventional hot water pipe piping method is not only inconvenient but also takes a long time by fixing using other U-shaped clip or pin. However, according to the present invention, And the first protrusions 112 of each set are inserted into the first groove portions 111 (111) so as to facilitate bending of the hot water pipes 210, Or the receiving portion 115, as shown in Fig. That is, the four first protrusions 112 constituting the set are arranged to cross the first recesses 111 or the receiving portions 115 one by one, thereby facilitating the refraction of the hot water pipe 210. In order to prevent leakage of the hot water pipe 210, the four first protrusions 112 are arranged in a staggered arrangement by having the angle? 1 shown in FIG. 6 so that one-touch can be performed do. On completion of the installation of the hot water pipe 210, a finish mortar layer 220 (shown in FIG. 2 and FIG. 3) may be formed by the placement of a finish mortar on the upper portion thereof to complete the construction.

According to the present invention, the foamed concrete is omitted, a space is formed from the mounting surface by the column-shaped receiving part 115 and the dustproof foot 140, and the thickness of the finished mortar layer 220 is set to 40 mm So that it is mounted on the airtight base plate 110. When an impact load is applied, a vibration occurs due to an elastic force or the like, and a resonance phenomenon occurs together with a resonance phenomenon. In this case, the dustproof foot 140 having a circular cross-section and a height of, for example, 15 mm is arranged in the first groove portion 111 in a manner of repetition, so that such a phenomenon can be suppressed and stability can be secured.

In addition, when an impact load is applied between the base plate 110 and the heat insulating pad 12 in a state where a hermetically closed space is formed between the base plate 110 and the heat insulating pad 12, a resonance phenomenon and a frictional noise are generated between the materials. ), The resonance phenomenon can be prevented by the Helmholz phenomenon, the noise can be effectively controlled, and the heat energy can be saved by further improving the heat storage effect.

The base plate 110 has the heat insulating pad 120 fitted on the rim 117 and the protruding portion 124 of the heat insulating pad 120 is supported on the vibration preventing foot 140, 120), it is possible to control the friction sound generated between the materials and improve the durability.

 On the other hand, since the impact load transmitted from the upper part is transmitted to the slab, the support structure is very important. In the float structure, the present invention is capable of evenly distributing and distributing the impact load applied from the upper part, In order to use the dustproof foot 140, the dustproof foot 140 has a hardness of 60 ± 5 as a characteristic of the rubber, and the combined area occupies 4 to 7% of the area of the base plate 110, 10 to 17 mm, it is possible to distribute the load evenly, reduce the spring constant suitable for heavy impact sound reduction, or have a natural vibration impedance, thereby effectively reducing the noise.

In addition, when the upper surface of the concrete slab 10 is excessively elevated by more than 10 mm, inclination or cracks are generated, the supporting force of the floored structure due to the column type is limited. For example, when the porous lightweight aggregate having a diameter of 2 to 5 mm is laid to have a thickness of 3 mm, the background is adjusted, and the foamed PE sheet 150 having a thickness of 2 mm is covered thereon. The load transmitted from the upper portion is uniformly dispersed and supported, and the noise shielding function by cracking is effective, in particular, to reduce the heavy impact noise.

As described above, according to the present invention, one-touch construction of the hot water pipe is enabled, the shaking phenomenon due to the impact load can be solved to the maximum, the low noise can be effectively controlled, And the durability can be improved by suppressing the flow of the heat insulating pad, and it is excellent in reduction and blocking effect of various noises such as heavy impact noise and the like.

Although the present invention has been described with reference to the accompanying drawings, it is to be understood that various changes and modifications may be made without departing from the spirit of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

110: base plate 111: first groove portion
112: first protrusion 113: second protrusion
114: second groove portion 115:
116: insertion hole 117: rim
118a: Coupling protrusion 118b: Coupling hole
120: Insulation pad 121: Insertion hole
122: third groove portion 123: support rib
124: protrusion 130: sound absorbing material
140, 140A: dustproof foot 141, 141A:
142: engaging portion 150: foamed PE sheet
160: lightweight aggregate 210: hot water pipe
220: Finishing mortar layer

Claims (8)

A hollow double-floored flooring installed on a slab to prevent interlayer noise,
The first protrusion is arranged to have a gap for inserting and fixing the hot water pipe, and a second protrusion corresponding to the first groove and a second protrusion corresponding to the first groove, A base plate having a plurality of second grooves corresponding to the first protrusions, a base plate formed to penetrate up and down and having a receiving portion extending downward from the second protrusions;
A plurality of third grooves are formed on the lower surface of the base plate so as to face the mounting surface so that a closed space is formed between the base plate and the base plate, An insulating pad made of EPS;
A sound absorbing material filled in the closed space;
A dustproof foot mounted on a mounting surface mounted on a lower end of a receiving portion exposed or protruded downward through the fitting hole; And
And a foamed PE sheet disposed between the dustproof foot and the lightweight aggregate provided so as to correspond to the unevenness of the slab, and a hollow double bottomed floor structure for reducing interlayer noise. The method according to claim 1,
Wherein the base plate comprises:
Wherein the first groove portion is formed to form a plurality of rows and the support portion is arranged to be aligned with the first groove portion in a row of a part or all of the plurality of rows and the first projection portions are arranged in a quadrangular shape Wherein a plurality of sets are formed so as to form a plurality of sets, and each set is formed so as to be alternately arranged with the first groove portion in the row, or alternately arranged with the first groove portion and the receiving portion, Double floored structure. The method of claim 2,
Wherein the base plate comprises:
A first row in which the first grooves are arranged in a plurality; And
And a second row in which the first groove portion and the receiving portion are alternately arranged,
Wherein the first and second rows are alternately arranged in the width direction or the longitudinal direction and the first groove and the receiving portion are arranged in a zigzag arrangement in the first and second rows, Hollow double bottomed floor structure for interlayer noise reduction. The method according to claim 2 or 3,
Wherein the base plate comprises:
Wherein the first protrusions are formed so that a line passing through the center between the first protrusions in each set forms an angle of 2 to 7 degrees with respect to the width direction or the longitudinal direction. The method according to any one of claims 1 to 3,
Wherein the base plate comprises:
The rim is formed so as to extend vertically downward so that the heat-insulating pad is fitted on the rim,
The heat-
And a protruding portion formed to surround the lower end of the receiving portion is supported on the dustproof foot and supported. The method according to claim 1,
The sound-
A hollow double-floored floor structure for reducing inter-layer impact noise, which is filled in the closed space to form an air layer on top of the closed space, the porous lightweight aggregate having a diameter of 2 to 5 mm and the polyester fiber. The method according to claim 1,
The dust-
An insertion portion slidably coupled to the support portion so as to be adjustable in height up and down is formed on the upper portion and a hook portion for preventing the support portion from being separated from the insertion portion is formed, Wherein the base plate has an area of 4 to 7% of the area of the base plate and a thickness of the base plate excluding the insertion part is 10 to 17 mm. The method according to claim 1,
The above-mentioned foamed PE sheet,
Wherein the slab is installed on the porous lightweight aggregate which is installed on the upper surface of the slab and has undergone the background adjustment when a height difference of 10 mm or more occurs on the upper surface of the slab.

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