KR101004733B1 - Floor structure - Google Patents

Abstract

The present invention relates to a floor structure having a floor slab and a wall constituting a wall of the floor slab, comprising: a finishing mortar layer laminated on the floor slab and forming a floor surface; Butyl rubber, natural rubber, EPDM (Ethylene Propylene Terpolymers) rubber, hard urethane, soft urethane, epoxy, stone and wood bond, asphalt resin, silicone, sealant, gypsum, lime, concrete, mortar, lightweight foam concrete It is made, and integrally bonded between the side wall and the wall of the mortar layer, characterized in that it comprises a vibration damping unit for reducing the vibration generated in the finish mortar layer. Thereby, by controlling the plate vibration of the finishing mortar layer forming the floor structure of the building structure, it is possible to reduce the transmission of the floor impact sound generated in the upper layer to the lower layer.

Description

Floor structure {FLOOR STRUCTURE}

The present invention relates to a floor structure, and more particularly, to a floor structure having an improved structure to control the vibration of the finishing mortar layer forming the floor.

Noise and vibration transmitted from the upper floor to the lower floor are always important issues in multi-unit buildings such as apartments, and the biggest problem among them is the floor impact sound transmitted from the ceiling of the lower floor. Can be.

The floor impact sound may be classified into a light impact sound (high frequency noise) generated by scratching an upper floor and the like, and a heavy impact sound (low frequency noise) generated by running on an upper floor.

Since floor impact sounds of MDUs cause significant noise pollution, in order to regulate them, the regulations for the recognition and management of floor shock sound blocking structure of MDUs have restrictions on their allowable limits, and KS KS In F 2863-1, the details of heavy impact sound are specified in Korean Industrial Standard KS F 2863-2.

Conventional flooring structure is basically a lightweight foam concrete layer and a finishing mortar layer is laminated on the top of the concrete floor slab to take the same structure as the ondol, the lightweight foam concrete layer and the finishing mortar layer is the same material after construction in one plate When the curing is completed, it vibrates into a complete plate.

In order to absorb the floor impact sound, an impact sound buffer layer made of a buffer material such as styrofoam or E.V.A (ethylene vinyl acetate) is further formed between the floor slab and the lightweight foamed concrete layer. The floor slab, lightweight foam concrete layer, and the impact sound buffer layer are constructed with a wall cushioning material having a pressure-sensitive adhesive adhered to the wall, and some air grooves are formed in the wall direction. In addition, by applying products with low elastic modulus of elasticity such as PE (poly ethylene) or EVA (ethylene vinyl acetate) to reduce light impact sound, wall shock absorbers are installed to reduce shock noise transmitted through walls. In the case of simply applying as a cushioning material, since the floor slab, lightweight foam concrete layer and the finishing mortar layer are completely separated, the plate vibration of the lightweight foam concrete layer and the finishing mortar layer cannot be reduced.

For this reason, the impact shock reduction performance is extremely minimal. In addition, there is a construction method in which the finishing mortar layer directly touches the wall on the top of the wall cushioning material, but this method cannot be regarded as a complete joining method by newly connecting the previously cured concrete wall. Rather, the thicker the wall cushion, the more complete the separation with the wall. In addition, amplification occurs in the center of the living room when the joint is rigidly bonded, such as slab slab.

This existing structure or material is a method of reducing the shock absorbing material by constructing a shock absorbing material in the transmission path of the floor impact sound that has already occurred. The sound absorbing performance of the high frequency noise is excellent, but the low frequency noise cannot exhibit its performance. It is pointed out.

That is, the impact sound buffer layer is formed of a buffer material, and the material and construction method of the wall buffer material 2, which is a conventional construction method, can reduce the transmission of the light impact sound, which is a high frequency noise. Has little effect.

Therefore, in order to reduce the weight impact sound, it is necessary to increase the thickness of the floor slab, but in this case, since the weight of the structure increases, efficient design cannot be achieved and construction cost increases. It cannot be a solution.

The problem to be solved in the problem of the background art, according to the present invention, by controlling the vibration of the plate of the finishing mortar layer forming the floor structure of the building structure, it is possible to reduce the transmission of the floor impact sound generated in the upper layer to the lower layer. To provide a floor structure.

According to the present invention, there is provided a floor structure having a floor slab and a wall constituting the wall of the floor slab, a layer of mortar laminated on the floor slab, forming a floor surface; Butyl rubber, natural rubber, EPDM (Ethylene Propylene Terpolymers) rubber, hard urethane, soft urethane, epoxy, stone and wood bond, asphalt resin, silicone, sealant, gypsum, lime, concrete, mortar, lightweight foam concrete It is made, and integrally bonded between the side wall of the finishing mortar layer and the wall, to provide a floor structure comprising a vibration damping unit for reducing the vibration generated in the finishing mortar layer.

Here, further comprising a lightweight foam concrete layer provided between the floor slab and the finishing concrete layer, wherein the vibration damping unit is integrally bonded between the side wall and the wall of the lightweight foam concrete layer, in the lightweight foam concrete layer By reducing the vibration generated, it is possible to reduce the transmission of the vibration generated in the upper layer to the lower layer.

It may further include a heat insulating buffer provided between the bottom slab and the lightweight foam concrete layer, and insulates between the bottom slab and the lightweight foam concrete layer.

In addition, a solution to the above problem is another embodiment of the present invention, in the floor structure having a floor slab, and a wall constituting the wall of the floor slab, laminated on the floor slab, the finishing mortar layer to form a floor surface and; At least any one of the floor slab and the wall and at least a portion of each of the finishing mortar layer is embedded in the bottom structure provides a floor structure comprising a vibration damping to reduce the vibration generated in the layer.

Further comprising a lightweight foamed concrete layer provided between the bottom slab and the finishing mortar layer, wherein the vibration damping portion provided to project at least one of the floor slab and the wall is embedded in the lightweight foamed concrete layer, the lightweight By reducing the vibration generated in the foam concrete layer, it is possible to reduce the transmission of the vibration generated in the upper layer to the lower layer.

The insulation may further include a heat insulating buffer provided between the bottom slab and the lightweight foam concrete layer to insulate the floor slab from the lightweight foam concrete layer.

It is preferable that the said damping part is any one of a pin, a bolt, a pipe, a board | plate material, and a pad.

In another aspect of the present invention, there is provided a floor structure having a door frame support layer supporting a window and door frame of a living room balcony, the mortar being laminated on a floor slab in an interior and forming an interior floor surface. A layer; It is provided to protrude in the door frame support layer, it is embedded in the finish mortar layer provides a floor structure comprising a vibration damping unit for reducing the vibration generated in the finish mortar layer.

Further comprising a lightweight foam concrete layer provided between the indoor floor slab and the finishing mortar layer, wherein the vibration damping portion provided to project to the door frame support layer is embedded in the lightweight foam concrete layer, generated in the lightweight foam concrete layer By reducing the vibration to be transmitted, it is possible to reduce the transmission of the vibration generated in the upper layer to the lower layer.

It may further include a heat insulating buffer provided between the bottom slab and the lightweight foam concrete layer, and insulates between the bottom slab and the lightweight foam concrete layer.

It is preferable that the said damping part is any one of a pin, a bolt, a pipe, a board | plate material, and a pad.

Therefore, according to the solution of the above problem, by controlling the plate vibration of the finishing mortar layer forming the floor structure of the building structure, it is possible to reduce the transmission of the floor impact sound generated in the upper layer to the lower layer.

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

Prior to the description, in various embodiments, components having the same configuration will be representatively described in the first embodiment using the same reference numerals, and in other embodiments, only the configuration different from the first embodiment will be described. do.

1 is a longitudinal sectional view of a floor structure according to a first embodiment of the present invention.

As shown in the drawing, the floor structure 10a according to the first embodiment of the present invention includes a floor slab 11, a wall 15 constituting a wall of the floor slab 11, and a floor slab 11. Vibration damping unit laminated on the top and forming a bottom surface, the vibration damping unit is integrally bonded between the side wall and the wall 15 of the finishing mortar layer 21 to reduce the vibration generated in the finishing mortar layer 21 Has (31a).

The light weight foam concrete layer 41 is provided between the bottom slab 11 and the finishing mortar layer 21.

In addition, a heat insulating buffer 45 is provided between the bottom slab 11 and the lightweight foamed concrete layer 41 to insulate the floor slab 11 and the lightweight foamed concrete layer 41.

Thus, on the bottom slab 11, the heat insulating buffer 45, the lightweight foamed concrete layer 41, and the finishing mortar layer 21 are sequentially stacked.

Here, the heating pipe 23 may be embedded in the finishing mortar layer 21. In addition, the insulation buffer 45 and the light-weight foam concrete layer 41 provided between the bottom slab 11 and the finishing mortar layer 21 may be selectively interposed.

On the other hand, in the floor structure (10a) according to the first embodiment of the present invention, the vibration damping portion (31a) is provided between each side wall and the wall 15 of the finishing mortar layer 21 and lightweight foam concrete layer (41).

The vibration damping unit 31a includes butyl rubber, natural rubber, ethylene propylene terpolymers (EPDM) rubber, hard urethane, soft urethane, epoxy, stone and wood bond, asphalt resin, silicone, sealant, gypsum, lime, concrete, mortar, and light weight. It is made of at least one of aerated concrete, integrally bonded between each side wall of the finishing mortar layer 21 and the lightweight foam concrete layer 41 and the wall 15, that is, the wall 15 and the lightweight foam concrete layer ( 41) and the finishing mortar layer 21 is integrated. As a result, vibration generated in the finishing mortar layer 21 and the lightweight foamed concrete layer 41 may be reduced, thereby reducing the floor impact sound transmitted from the finishing mortar layer 21 to the floor slab 11.

That is, in order to reduce vibrations of the plate made of the light weight foam concrete layer 41 and the finishing mortar layer 21 on the insulating buffer material 45, the respective sidewalls of the light weight foam concrete layer 41 and the finishing mortar layer 21 and By attaching the wall 15 to the vibration damping part 31d, the plate vibration itself of the lightweight foam concrete layer 41 and the finishing mortar layer 21 is hardly generated, thereby reducing the floor impact sound transmitted to the lower layer. .

Here, the vibration damping part 31d is finished by leaving the part where the wall cushion material is constructed so as to integrate the lightweight foam concrete layer 41, the finishing mortar layer 21, and the wall 15 through the shape of the existing wall buffer material. After the mortar layer 21 is cured, the material of the vibration damping unit 31d may be filled and constructed. In this case, after curing is completed due to heat generated while curing the lightweight foamed concrete layer 41 or the finishing mortar layer 21, the material of the vibration damping unit 31d is made of the lightweight foamed concrete layer 41 or the finishing mortar layer 21. It is preferred to have a structure in which it is permeated between and integrated.

2 is a longitudinal sectional view of a floor structure according to a second embodiment of the present invention.

Unlike the first embodiment described above, the floor structure 10b according to the second embodiment of the present invention is provided with a plurality of bolts as the vibration damping portion 31b.

The damping part 31b is disposed at intervals along the plate surface of the bottom slab 11, one end of the damping part 31b is supported by the bottom slab 11, and the other end thereof protrudes toward the finishing mortar layer 21. It is.

One region of the vibration damping portion 31b protruding from the plate surface of the bottom slab 11 is embedded in the heat insulating buffer 45, the light-foamed concrete layer 41, and the finishing mortar layer 21. In particular, the screw area of the vibration damping portion 31b is buried in close contact with the lightweight foamed concrete layer 41 and the finishing mortar layer 21, so that the vibration damping portion 31b, the lightweight foamed concrete layer 41 and the finishing mortar layer 21 are embedded. ), The bottom slab 11 and the lightweight foamed concrete layer 41 and the finishing mortar layer 21 are integrated to reduce the floor impact sound transmitted from the finishing mortar layer 21 to the floor slab 11. You can do it.

Here, the damping part 31b may be any one of a pin, a pipe, a plate, and a pad, instead of a bolt.

On the other hand, the floor structure (10b) according to the second embodiment of the present invention is a heat insulating buffer material 45, lightweight foam concrete layer 41, the wall between the wall 15 and each side wall of the finishing mortar layer (21) A wall buffer material 51 is provided for reducing the shock noise transmitted.

3 is a longitudinal sectional view of the floor structure according to the third embodiment of the present invention.

The floor structure 10c according to the third embodiment of the present invention is different from the above-described second embodiment, and the vibration damping part 31c is made of a pad made of a dustproof rubber material.

The lower part of the vibration damping part 31c is supported by the bottom slab 11 by the fixing bolt 33, and the finishing mortar layer 21 and the lightweight foamed concrete layer 41 are respectively attached to the upper part and the middle part of the damping part 31c. In order to increase the cohesion force with), a plurality of unevennesses 35 and recessed grooves 37 are formed.

As a result, the bonding force between the vibration damping unit 31c, the lightweight foam concrete layer 41, and the finishing mortar layer 21 is increased, thereby integrating the bottom slab 11, the lightweight foam concrete layer 41, and the finishing mortar layer 21. In this way, the floor impact sound transmitted from the finishing mortar layer 21 to the floor slab 11 can be reduced.

4 is a longitudinal sectional view of the floor structure according to the fourth embodiment of the present invention.

Unlike the above-described embodiments, the floor structure 10d according to the fourth embodiment of the present invention is provided with a long strip-shaped pad made of a dustproof rubber material as the vibration damping portion 31d.

The vibration damping portion 31d is interposed between the sidewalls of the finishing mortar layer 21 and the lightweight foamed concrete layer 41 and the wall 15. One side of the vibration damping portion 31d is supported on the wall 15 by the fixing bolt 33, and the other side of the vibration damping portion 31d has a bonding force between the finishing mortar layer 21 and the lightweight foam concrete layer 41. In order to increase, the unevenness | corrugation 35 is formed. As a result, the finishing mortar and the lightweight foam concrete are permeated into the vibration damping unit 31d, thereby improving integration and improving the reduction performance of the plate vibration.

Here, the damping part 31d may be any one of a pin, a pipe, a plate, and a bolt instead of a pad.

As a result, the bonding force between the vibration damping unit 31d, the light-foamed concrete layer 41, and the finishing mortar layer 21 is increased, thereby integrating the wall 15, the light-foaming concrete layer 41, and the finishing mortar layer 21. The floor impact sound transmitted from the finishing mortar layer 21 to the floor slab 11 can be reduced.

5 is a longitudinal sectional view of the floor structure according to the fifth embodiment of the present invention.

Unlike the above-described embodiments, the floor structure 10e according to the fifth embodiment of the present invention has a door frame support layer 13 supporting the window and door frame 7 of the living room balcony 5 and the floor slab 11 of the room. The mortar layer 21 is laminated on and formed to protrude in the door frame support layer 13 and the mortar layer 21 to form an interior floor surface, and is embedded in the mortar layer 21 to reduce the vibration generated in the finishing mortar layer 21 It has a true part 31e.

The lightweight foam concrete layer 41 is provided between the indoor floor slab 11 and the finishing mortar layer 21.

In addition, an insulation buffer 45 is provided between the indoor floor slab 11 and the lightweight foamed concrete layer 41 to insulate the floor slab 11 and the lightweight foamed concrete layer 41.

Thus, on the interior floor slab 11, the thermal insulation buffer material 45, the lightweight foam concrete layer 41, and the finishing mortar layer 21 are sequentially stacked.

Here, although not shown, a heating pipe 23 may be embedded in the finishing mortar layer 21. In addition, the insulation buffer 45 and the lightweight foam concrete layer 41 provided between the indoor floor slab 11 and the finishing mortar layer 21 may be selectively interposed.

On the other hand, the floor structure (10e) according to the fifth embodiment of the present invention is provided with a plurality of bolts as the vibration damping portion (31e).

The vibration damping portion 31e is disposed at intervals along the plate surface of the door frame supporting layer 13, one end of the vibration damping portion 31e is supported by the door frame supporting layer 13, and the other end thereof has the finishing mortar layer 21 and the lightweight bubble. It protrudes toward the concrete layer 41.

One region of the vibration damping portion 31e protruding from the plate surface of the door frame support layer 13 is embedded in the finishing mortar layer 21 and the lightweight foamed concrete layer 41. In particular, the screw area of the vibration damping portion 31e is buried in close contact with the finishing mortar layer 21 and the lightweight foam concrete layer 41, and the vibration damping portion 31e, the finishing mortar layer 21, and the lightweight foam concrete layer 41 are embedded. ), The wall 15, the finishing mortar layer 21 and the lightweight foam concrete layer 41 are integrated to reduce the floor impact sound transmitted from the finishing mortar layer 21 to the indoor floor slab 11. You can do it.

Here, the damping part 31e may be any one of a pin, a pipe, a plate, and a pad, instead of a bolt.

As described in the above-described embodiments, the floor structure according to the present invention basically includes, as an embodiment, the lower part of the hitting and measuring points A, B, C, and D shown in FIG. It is desirable to install under the window frame where the balcony and living room where plate vibration occurs most frequently.

The plate vibration tends to amplify the heavy floor impact sound in the weak stiffness because it has the habit of flowing to the weak stiffness. The strength of the plate vibration is the strongest because the area connecting the living room and the balcony is weak. For this reason, when the floor impact sound is measured, the peak of the balcony is often 19 dB higher than the peak. Since the measurement of the floor impact sound energy averages the peak value by the following [Equation 1], the peak value directly affects the floor impact sound, especially the heavy impact sound.

[Equation 1]

The heavy shock sound is often influenced by the 63Hz band. The 63Hz band is a concept including the 50Hz band, and the upper plate vibration shows a peak value in the 50Hz band.

Hereinafter, the experimental content and experimental results for demonstrating whether the floor impact sound transmitted from the finishing mortar layer to the floor slab is reduced according to the present invention will be described.

Basically, the floor impact sound measurement was conducted on-site by Korean Industrial Standard KS F 2810-1, 2 using bang machine and tapping machine.Insulation buffer material is made of naslab state, namely concrete slab and wall only for comparative measurement. And the light weight concrete layer and the finishing mortar layer were measured in advance without the result of securing the result value, and then measured and constructed by the same method as the existing method of the first generation and the two structures constructed through the present invention A total of three generations were measured and compared.

The site was a floor slab with a thickness of 180mm and measured three generations of 103-302, 402 and 502. As for the thermal insulation buffer, the same elastic modulus of 5MN / m 3 was applied to all three generations. For performance evaluation, both the analytical instrument and the microphone used Japanese RION equipment and measured with 1/3 octave band. Construction was carried out in the same manner as the table below. At the time of measurement, the window and the door entrance were sealed with styrofoam etc., and the living room window was installed. In addition, there was no ceiling structure, the finish was measured without construction.

The measured values of the screw slab state are shown in the following [Table 1], [Table 2], and [Table 3].

Table 1 Building No. 302 Naslab

Table 2 Building No. 402 Naslab

Table 3 Building No. 502 Naslab

As a single value, the weight impact sound was 50dB in 103-302 and 49dB in 103-402, 50dB in 103-502, which was quite good for the slab 180 site. In addition, in the case of 50 Hz, which affects 63 Hz, it can be seen that the amplification of the lower layer occurs at the center when the center portion (Excite3) is hit. That is, before the finishing mortar layer is constructed, the central part becomes the weakest part of the stiffness because the slab is fixed by the wall in the naslab state, so the part fixed by the wall becomes stiff and the center part is the weakest stiffness. Will be displayed. In spite of the performance of such a slab, the addition of a buffer layer is generally higher than the impact sound of the slab state. The weight impact sound performances of 103-302, 402, and 502 were 46dB, 46dB, and 54dB, respectively.

[Table 4] Measured value after construction of Building 103

[Graph 1] Comparison of measured values before and after construction of Building 103, Room 302

Compared to naslab, 103-302 and 402, which applied the present invention, were reduced by 4dB and 3dB, respectively, while 103-502, which was constructed with the existing structure, tended to amplify 4dB. It should be noted that the difference in performance is large only in the 63 Hz to 125 Hz band, but shows similar results in other frequency bands. The 63 Hz band is a frequency band that is not recognized by the average person and is mainly transmitted by vibration and is a frequency band measured only by a machine. This resulted in the phenomenon that the first vibration mode overlaps with the second vibration mode before the disappearance due to the plate vibration of the finishing mortar layer, that is, the resonance occurs. This resonance is caused by the plate vibration of the finishing mortar layer. will be. The present invention is intended to suppress the generation of such plate vibration inherently. In particular, it is the common opinion that the reduction of the 63Hz band is almost impossible in the current wall structure to perform performance in the field as the current buffer material, but the present invention is based on a completely new concept according to the development of technology and the development of the method. It is an impact sound reduction structure.

Since the actual laboratory measurements are almost rectangular single-plates, the stiffness of the finished mortar layer is similar to that of the weak and strong parts, which is almost the same, and shows a similar pattern according to the dynamic modulus of the insulating buffer. That is, the lower the dynamic modulus of elasticity, the lower the impact sound performance of the floor. However, if the actual performance is greatly changed when applied to the field, it is difficult to realize the actual performance because the stiffness of the plate vibration is weakened because the rigidity of the finishing mortar layer is different due to the structure of the site. In fact, this measurement resulted in amplification of 19dB more than the center of the living room's balcony. This is because the balcony side (30, 40) of the living room is a weak portion. Application of the invention in the field construction was applied to the portion indicated by the thick solid line of Figure 6, the vibration damping material was made of butyl rubber of 5mm thickness and 100mm width was applied by 1m for each site. The stiffness of the finishing mortar layer and the lightweight foam concrete layer is determined by the shape of the plate itself and the joining of the wall. The part with a certain shape becomes the rigid shaft, and the joint with the wall becomes the rigid shaft.

Since the vibration generated in the central part of the finishing mortar layer flows to the part of the balcony where the wall is not constructed, it is preferable to apply to each part.

Hereinafter, specific examples of the method for constructing the vibration damper as described above will be described.

First, before constructing the insulating buffer in FIG. 5, it is preferable to install the vibration damping material under part or the whole of the window (below the PL window) to which the wall or living room and the balcony are connected.

Second, as shown in Figure 1, the vibration damping material applied to the wall should be a material that the wall and the finishing mortar layer and lightweight foam concrete layer is well adhered, and suppress the vibration of the vibration damping performance and the finishing mortar layer, lightweight foam concrete layer It must be a material that can be used. Such vibration can also be ensured through damping or stiffness. Here, it is preferable that the thickness of the damping material applied to a wall is 1-20 mm.

Third, as shown in Figure 1, the vibration damping material applied to the wall is a weak part of the finishing mortar layer, for example, the part where the wall is bent or broken, the finishing mortar layer and the light concrete layer each side wall and wall It is preferable to construct the parts that are not in contact with each other, and only part of the finishing mortar layer and the light concrete layer may be constructed between the existing wall buffers and the remaining parts as vibration dampers. The whole construction increases the weight impact sound reduction performance.

Fourth, as shown in Figure 4 it is also effective to protrude the vibration damping material from the wall buried in the finishing mortar layer, lightweight foam concrete layer and fixed.

Fifth, integrating the finishing mortar layer and the light-foamed concrete layer by applying a vibration damping material as shown in FIG. 2 under the stiffness part of the finishing mortar layer, that is, the lower part such as the hitting and measuring point A and B areas in FIG. It is also preferable to make it.

Sixth, the pads made of the anti-vibration rubber, as shown in Figure 3 in the lower portion of the stiffness of the finishing mortar layer, that is, the impact and measurement points A, B, C, D region in Figure 6 It is preferable.

Seventh, it is also effective to leave a space in a portion of the conventional wall cushioning material to fill the finishing mortar layer after curing, and to remove and fill the conventional wall cushioning material.

Eighth, the larger the span ratio (span ratio) of the living room, including the kitchen, the more effective.

Ninth, the lower the dynamic modulus of elasticity of the heat insulating buffer, the more effective it is. This is because, for materials with high modulus of elasticity, plate vibration of the finishing mortar layer transmits vibration and noise to the lower layer through the thermal insulation buffer before flowing to the weaker part. Therefore, it is preferable to apply the heat insulating buffer material of 10 MN / m <3> or less as preferable dynamic elastic modulus.

Tenth, the thickness of the existing wall cushioning material is as thick as the thickness within the range of 1 to 30mm, the better, and the thickness of the wall jamming material of the present invention is preferably 1 to 20mm.

As such, the present invention prevents the increase of load and construction cost of the existing structure and secures economic feasibility, and effectively reduces the plate vibration of the finishing mortar layer and the lightweight foam concrete layer, thereby significantly reducing the weight floor impact sound. It is possible to produce on-site performance similar to laboratory performance, which is completely different from existing floor structures. In addition, since the average error is about 2 level (6dB) level in the field measurement after the laboratory measurement, there were many problems in the reliability of the actual laboratory measurement value. This problem is due to the site structure being completely different from the laboratory. Therefore, the present invention can significantly improve the floor impact sound performance in the field.

Therefore, according to the present invention, by controlling the vibration of the plate of the finishing mortar layer forming the floor structure of the building structure, it is possible to reduce the transmission of the floor impact sound generated in the upper layer to the lower layer.

It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

1 is a cross-sectional view of the floor structure according to the first embodiment of the present invention,

2 is a cross-sectional view of the floor structure according to the second embodiment of the present invention,

3 is a cross-sectional view of the floor structure according to the third embodiment of the present invention,

4 is a cross-sectional view of the floor structure according to the fourth embodiment of the present invention;

5 is a cross-sectional view of the floor structure according to the fifth embodiment of the present invention;

6 is a plan view according to an embodiment to which the floor structure of the present invention is applied.

Explanation of symbols on the main parts of the drawings

10a, 10b, 10c, 10d, 10e: floor structure 11: floor slab

13: door frame support layer 15: wall

21: finishing mortar layer 23: heating piping

31a, 31b, 31c, 31d, 31e: vibration suppressing part 41: lightweight foam concrete layer

45: insulation buffer 51: wall buffer

Claims (13)

delete delete delete A floor structure having a floor slab and a wall forming a wall of the floor slab, A finishing mortar layer laminated on the bottom slab and forming a bottom surface; At least any one of the floor slab and the wall and at least a portion of each of the finishing mortar layer is embedded in the floor structure, characterized in that it comprises a vibration damper to reduce the vibration generated in the finishing mortar layer. The method of claim 4, wherein Further comprising a lightweight foam concrete layer provided between the floor slab and the finishing mortar layer, At least a part of the vibration damping unit is embedded in the lightweight foam concrete layer, floor structure, characterized in that to reduce the vibration generated in the lightweight foam concrete layer. The method of claim 5, And a heat insulating buffer provided between the floor slab and the lightweight foam concrete layer to insulate the floor slab from the lightweight foam concrete layer. The method according to any one of claims 4 to 6, The damping unit is a floor structure, characterized in that any one of a pin, bolt, pipe, plate, pad. delete delete delete delete The method according to any one of claims 4 to 6, The vibration damping unit is butyl rubber, natural rubber, EPDM (Ethylene Propylene Terpolymers) rubber, hard urethane, soft urethane, epoxy, stone and wood bond, asphalt resin, silicon, sealant, gypsum, lime, concrete, mortar, lightweight foam concrete Floor structure, characterized in that made of at least one. The method according to any one of claims 4 to 6, Floor structure, characterized in that the wall is a door frame support layer for supporting the window and door frame of the living room balcony.

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