Waterproof and soundproof structure

Abstract

To solve the problems associated with a conventional technology, that is, to provide a water-proof and sound insulating structure having both water-proof and sound insulating properties in which a part through which piping passes is a less complicated structure than conventional structures.SOLUTION: A water-proof sound insulating structure is installed in a room where water is used and is a structure that suppresses sound transmitted to a floor below, and comprises a vibration-proof slab, a water-proof slab, and vibration-proof side walls. The vibration-proof slab is placed on a floor slab of an irrigation room, and the water-proof slab is placed above the vibration-proof slab with a distance therebetween so that a space is formed. The vibration-proof slab is composed of a planar floor vibration-proof material and a holding concrete. The water-proof slab is composed of a foundation slab, an upper water-proof material, and a holding concrete.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The invention of the present application relates to a sound insulation technology for rooms that use water, such as bathrooms and equipment cleaning rooms. More specifically, it relates to a waterproof and sound insulation structure in which a waterproof layer and a vibration damping layer are separated into an upper slab and a lower slab.

Background Art

[0002] When choosing accommodation facilities such as hotels and inns, in addition to price and food, guests may also pay attention to the facilities unique to the establishment. In particular, bathrooms are becoming increasingly important when choosing accommodation facilities, and there is a tendency to prefer so-called panoramic baths on relatively upper floors. Therefore, in recent years, the number of accommodation facilities with panoramic baths has been increasing.

[0003] In bathrooms such as panoramic baths, waterproof measures are naturally taken on the floor and wall surfaces. In addition, guest rooms may be arranged downstairs from the panoramic bath. In this case, in addition to waterproof measures, noise measures are also required. Usually, hot water supply pipes for hot water supply and drain pipes for drainage are laid through the floor surface on the floor surface of the bathroom. Therefore, in such a case, it is inevitable that the waterproof measures, noise measures, and the hot water supply pipes and drain pipes are in a complicated structure. Therefore, various technologies have been proposed so far to simplify such a complicated structure as much as possible.

[0004] For example, in Patent Document 1, although the unit bath is basically supported by a floating floor, a technique is proposed in which a floating floor missing part is formed near the pipe and the unit bath is supported by a plurality of support legs. In addition, in Patent Document 2, a concave part is formed in the concrete slab, a space holding member is arranged on the upper surface of the concave part, and a space is formed by placing a plate-like member on the space holding member, and a technique for storing pipes in the space is proposed.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

[0006] The technologies disclosed in Patent Documents 1 and 2 both have structures that combine waterproofing performance with sound insulation (soundproofing) performance. However, since they are intended for relatively small bathrooms such as unit baths, their sound insulation performance cannot be expected to be as high as that required for places like concert halls.

[0007] In situations where a high degree of quietness is required, such as in music halls, karaoke boxes, or residences near airports where soundproofing measures are taken, floating sound insulation structures are sometimes employed. This floating sound insulation structure consists of vibration-damping material and a floating sound insulation layer supported by this material, and has features such as attenuating sound and vibration and blocking the propagation of sound.

[0008] When there are guest rooms on the floor below, such as in a panoramic bath, a considerable level of sound insulation is required, and the floating sound insulation structure described above can be considered. In addition, in order to secure space for hot water pipes and drainage pipes, it is also possible to construct the floor as a double slab structure, as shown in Figure 13. Figure 13 is a schematic cross-sectional view (a cross-section cut in a vertical plane) showing a structure that employs a floating sound insulation structure and has waterproof and sound insulation properties by constructing the floor as a double slab. This figure shows a panoramic bath from which you can enjoy the scenery from the window, and includes a bathtub, washing area, and machine room.

[0009] The floor portion in Figure 13 is formed by an upper slab SU and a lower slab SL, with a space provided between the upper slab SU and the lower slab SL, which is used to house the hot water supply pipe PS and the drain pipe PD. The upper slab SU also has a sound insulation layer LP on the upper level and a waterproof layer LV on the lower level. As shown in Figure 13(b), this sound insulation layer LP is a floating sound insulation structure consisting of a planar vibration-damping material and a retaining concrete.

[0010] The structure shown in Figure 13 allows for the housing of the hot water supply pipe PS and the drain pipe PD, and by making the sound insulation layer LP a floating sound insulation structure, noise such as the sound of the showerhead or bathtub falling can be suppressed. However, since the sound insulation layer LP and the waterproof layer LV are located on the upper slab SU, the hot water supply pipe PS and the drain pipe PD will penetrate the sound insulation layer LP and the waterproof layer LV at the same location. The arrangement of this penetration section is extremely complex, and its construction is very complicated, requiring considerable effort and time. Furthermore, while it is desirable to seal the waterproof layer LV to prevent water from passing through, it is desirable to separate the sound insulation layer LP from the building structure, resulting in a structure that is, in a sense, contradictory.

[0011] Incidentally, load-bearing members made of synthetic resin material (for example, rubber) are generally installed at the bottom of vertical walls, but conventionally, rectangular load-bearing members (so-called square rubber) were used, as shown in Figure 14. Figure 14 shows a conventional load-bearing member RS, where (a) is a plan view from above showing a situation in which many load-bearing members RS are arranged, and (b) is a plan view from above showing a panel-shaped vibration-damping material PV into which the load-bearing members RS are fitted. Load-bearing members RS using square rubber need to be installed in large numbers in a line at the bottom of the vertical wall, as shown in Figure 14(a), which required considerable labor and time. Also, in manufacturing the vibration-damping material PV shown in Figure 14(b), it was necessary to first cut out a notch in the panel-shaped vibration-damping material PV, fit the square rubber load-bearing member RS ​​into the notch, and then apply masking tape around the load-bearing member RS, which also required considerable labor and time.

[0012] The object of the present invention is to solve the problems of the prior art, namely, to provide a waterproof and soundproof structure that has a less complex structure in the part through which the pipe penetrates compared to the conventional, and that combines waterproof performance and soundproofing performance. [Means for solving the problem]

[0013] The present invention focuses on a two-layer slab structure consisting of a vibration-damping slab and a waterproof slab, with a sound-insulating layer provided on the vibration-damping slab and a waterproof layer on the waterproof slab. This invention is based on a completely new concept.

[0014] The waterproof and soundproof structure of the present invention is installed in a room where water is used (hereinafter referred to as the "water utilization room") and is a structure that suppresses sound transmitted to the floor below the water utilization room, and comprises a vibration-damping slab, a waterproof slab, and vibration-damping side walls. The vibration-damping slab is placed on the floor slab of the water utilization room, and the waterproof slab is placed above the vibration-damping slab with a separation so that a space is formed. The vibration-damping side walls rise from the upper surface of the vibration-damping slab and support the vibration-damping slab. The vibration-damping slab is composed of a planar floor vibration-damping material and a retaining concrete laid on top of the floor vibration-damping material, and the waterproof slab is composed of a foundation slab, an upper waterproofing material laid on top of the foundation slab, and a retaining concrete laid on top of the upper waterproofing material.

[0015] The waterproof and soundproof structure of the present invention may also include a vertical load-bearing member in the vibration-damping slab. This vertical load-bearing member is laid on the downward projection surface of the vibration-damping side wall and is formed of an elastic material having vibration-damping properties. The vertical load-bearing member should be in the shape of a strip and laid as a continuous piece below the vibration-damping side wall.

[0016] The waterproof and soundproof structure of the present invention may also include a vibration-damping side wall that incorporates a horizontal load-bearing member. This horizontal load-bearing member is laid on the wall surface facing the vertical wall of the water supply chamber and on the lateral projection surface of the waterproof slab, and is formed of an elastic material having vibration-damping properties.

[0017] The waterproof and soundproof structure of the present invention may also include a vibration-damping slab that incorporates a horizontal load-bearing member. In this case, the horizontal load-bearing member is laid on the end face of the vibration-damping slab facing the vertical wall of the water supply room.

[0018] The waterproof and soundproof structure of the present invention can also be such that the vibration-proof side wall includes a planar wall vibration-proof material. In this case, the wall vibration-proof material is laid in a portion where the horizontal load-receiving member is not arranged. Also, the waterproof and soundproof structure of the present invention can be such that the vibration-proof side wall includes a waterproof layer.

[0019] The waterproof and soundproof structure of the present invention can also be such that the vibration-proof slab includes a waterproof layer. This waterproof layer is composed of a lower waterproof material and press concrete laid on the upper side of the lower waterproof material.

Effects of the Invention

[0020] The waterproof and soundproof structure of the present invention has the following effects. (1) The structure for enclosing the portion where the piping penetrates and the outer wall portion is made simpler than in the prior art. As a result, the construction of this portion can be easily carried out. (2) The waterproof slab is sealed so as not to allow water to pass through, and in the soundproof slab, the edge with the floor slab of the drainage chamber is cut off, and high waterproof performance and high soundproof performance can be achieved together. (3) By using the strip-shaped load-receiving member, the load-receiving member can be easily installed as compared with the conventional method shown in FIG. 14.

Brief Description of the Drawings

[0021] [Figure 1] A cross-sectional view schematically showing a prospective bathroom using the waterproof and soundproof structure of the present invention. [Figure 2] (a) is a cross-sectional view schematically showing a vibration-proof slab, a waterproof slab, and vibration-proof side walls at both ends, and (b) is a cross-sectional view schematically showing a vibration-proof slab, a waterproof slab, and vibration-proof side walls at both ends and in the middle. [Figure 3] (a) is a cross-sectional view schematically showing a vibration-proof slab with a floor vibration-proof material laid on the upper surface of the floor slab, and (b) is a cross-sectional view schematically showing a vibration-proof slab with a waterproof layer arranged between the floor slab and the floor vibration-proof material. [Figure 4] A cross-sectional view schematically showing a vibration-proof slab including a vertical load-receiving member. [Figure 5]A cross-sectional view schematically showing a state where a resin panel is laid on the upper surface of a vertical load-bearing member provided with grooves and irregularities on both sides. [Figure 6] A plan view seen from above of a panoramic bathroom where a strip-shaped direct load-bearing member is arranged in the upper part and a vibration-proof side wall is arranged in the lower part. [Figure 7] A cross-sectional view schematically showing a waterproof slab. [Figure 8] A partial cross-sectional view schematically showing a vibration-proof side wall to which the ends of the waterproof slab are joined. [Figure 9] A partial cross-sectional view schematically showing a vibration-proof slab including a horizontal load-bearing member. [Figure 10] A frequency characteristic diagram showing the results of measuring the sound source before filling the bathtub in the panoramic bath. [Figure 11] A frequency characteristic diagram showing the results of measuring the sound when a bathtub falls on a PC board downstairs. [Figure 12] A frequency characteristic diagram showing the results of measuring the sound when a shower head falls on a PC board downstairs. [Figure 13] (a) is a cross-sectional view schematically showing a structure that adopts a floating sound insulation structure and the floor part is composed of a double slab, and (b) is a partial cross-sectional view schematically showing the floor part of the washing area. [Figure 14] (a) is a plan view showing a situation where many conventional load-bearing members are arranged, and (b) is a plan view showing a panel-shaped vibration-proof material into which the load-bearing members are fitted.

Mode for Carrying Out the Invention

[0022] An example of the waterproof and sound insulation structure of the present invention will be described based on the drawings. The waterproof and sound insulation structure of the present invention can be used not only in panoramic large baths, bathrooms in apartment houses, or facilities for storing water such as pools, but also in various rooms for handling water (that is, "water-using rooms") such as kitchens, washing facilities rooms for products and machines. In particular, it is effective to use it in water-using rooms where there is a space for people to stay downstairs (for example, guest rooms, etc.). For the sake of convenience, here, an example of a water-using room as a panoramic bathroom in a hotel or a ryokan will be used to describe the waterproof and sound insulation structure of the present invention.

[0023] Figure 1 is a schematic diagram showing a panoramic bathroom (water supply room) utilizing the waterproof and soundproof structure 100 of the present invention, and is a cross-sectional view taken in a vertical plane. As shown in this figure, the waterproof and soundproof structure 100 is composed of a horizontal slab (hereinafter particularly referred to as "vibration-damping slab 110") placed on the floor slab 210 of the panoramic bathroom, a horizontal slab (hereinafter particularly referred to as "waterproof slab 120") placed above the vibration-damping slab 110, and a vertical wall (hereinafter particularly referred to as "vibration-damping side wall 130") rising from the upper surface of the vibration-damping slab. However, the waterproof slab 120 is placed at a distance from the vibration-damping slab 110 so that a space SP is formed between the vibration-damping slab 110 and the waterproof slab 120. The vibration-damping slab 110, waterproof slab 120, and vibration-damping side wall 130 can each be constructed from cement-based materials such as concrete, or from steel or resin-based materials.

[0024] The vibration-isolating slab 110 is constructed including a planar vibration-isolating material (hereinafter, in particular referred to as "floor vibration-isolating material 111") and load-bearing materials (hereinafter, in particular referred to as "vertical load-bearing materials 112"). The waterproof slab 120 is constructed including a planar waterproofing material (hereinafter, in particular referred to as "upper waterproofing material 121"), and the vibration-isolating side wall 130 is constructed including a planar vibration-isolating material (hereinafter, in particular referred to as "wall vibration-isolating material 131") and load-bearing materials (hereinafter, in particular referred to as "horizontal load-bearing materials 132"). The wall vibration-isolating material 131 of the vibration-isolating side wall 130 is preferably laid on the portion of the vibration-isolating side wall 130 that faces the vertical wall 220 of the observation bathroom.

[0025] Figure 2 is a schematic cross-sectional view showing only the vibration-isolating slab 110, waterproof slab 120, and vibration-isolating side wall 130. (a) shows an example where vibration-isolating side walls 130 are placed at both ends, and (b) shows an example where vibration-isolating side walls 130 are placed at both ends and in the middle. In the example in Figure 2(a), two upper and lower vibration-isolating slabs 110 and waterproof slab 120 are placed between the vibration-isolating side walls 130 at both ends. The waterproof slab 120 is connected to the vibration-isolating side wall 130 at its end, and the vibration-isolating side wall 130 is connected to the vibration-isolating slab 110 at its lower end. In other words, the waterproof slab 120 is supported by the vibration-isolating side wall 130 at its end, and the vibration-isolating side wall 130 is supported by the vibration-isolating slab 110 at its lower end. On the other hand, in Figure 2(b), similar to Figure 13, an intermediate vibration-isolating side wall 130 is positioned between the vibration-isolating side walls 130 at both ends, a waterproof slab 120 is positioned between the right vibration-isolating side wall 130 and the intermediate vibration-isolating side wall 130, and a waterproof slab 120 is also positioned between the left vibration-isolating side wall 130 and the intermediate vibration-isolating side wall 130. In the example of Figure 2(b), the waterproof slab 120 is supported by the vibration-isolating side wall 130 at its end, and the vibration-isolating side wall 130 is supported by the vibration-isolating slab 110 at its lower end. Note that the combination of vibration-isolating slab 110, waterproof slab 120, and vibration-isolating side wall 130 is not limited to the example in Figure 2, and various combinations are possible, such as positioning two or more vibration-isolating side walls 130 in the middle.

[0026] The following will provide a more detailed explanation of each of the main elements constituting the waterproof sound-insulating structure 100 of the present invention.

[0027] (Vibration-isolating slab) Figure 3 is a schematic cross-sectional view of the vibration-isolating slab 110, where (a) shows an example in which floor vibration isolation material 111 is laid on the upper surface of the floor slab 210, and (b) shows an example in which a waterproof layer is placed between the floor slab 210 and the floor vibration isolation material 111.

[0028] As shown in Figure 3(a), the vibration-isolating slab 110 is composed of a planar floor vibration-isolating material 111 laid on the upper surface of the floor slab 210 of the observation bathroom, and a retaining concrete (hereinafter, in particular, referred to as "vibration-isolating retaining concrete 113") laid on top of the floor vibration-isolating material 111. Alternatively, as shown in Figure 3(b), it can be composed of a waterproofing layer in addition to the floor vibration-isolating material 111 and the vibration-isolating retaining concrete 113. This waterproofing layer can be composed of a planar waterproofing material (hereinafter, in particular, referred to as "lower waterproofing material 114") laid on the upper surface of the floor slab 210 of the observation bathroom, and a retaining concrete (hereinafter, in particular, referred to as "lower waterproofing retaining concrete 115") laid on top of the lower waterproofing material 114. If the vibration-damping slab 110 includes a waterproofing layer, the waterproofing layer (lower waterproofing material 114 and lower waterproofing retaining concrete 115) is placed between the floor slab 210 of the observation bathroom and the floor vibration-damping material 111, thereby further improving the waterproofing function to the floor below, which is preferable. The lower waterproofing material 114 may be made of asphalt, or it may be formed from various conventionally used materials.

[0029] The floor vibration isolation material 111 of the vibration isolation slab 110 can be made from a flat plate formed from closed-cell foamed plastic (bead-type cross-linked polyethylene foam) made from polyolefin resin, or from a planar material made from other synthetic resins (such as rubber), or can be formed from various conventional vibration isolation materials. This floor vibration isolation material 111 is, of course, a component that has the ability to suppress vibrations, and in particular, it is a component that has the ability to "cut ties" by not transmitting horizontal force between upper and lower components (or transmitting only a very small portion of it). For example, in the case of Figure 3(a), the floor vibration isolation material 111 cuts ties between the floor slab 210 and the vibration-isolating retaining concrete 113, and in the case of Figure 3(b), the floor vibration isolation material 111 cuts ties between the lower waterproofing retaining concrete 115 and the vibration-isolating retaining concrete 113.

[0030] The vibration-isolating slab 110 can also be constructed including a vertical load-bearing member 112, as shown in Figure 4. Since particularly large vertical loads act where the vibration-isolating side wall 130 is placed, it is advisable to place the vertical load-bearing member 112 in that location. In order to efficiently receive the vertical load of the vibration-isolating side wall 130, it is advisable to lay the vertical load-bearing member 112 below the vibration-isolating side wall 130, or more specifically, on the surface projected from the lower end surface of the vibration-isolating side wall 130 (downward projection surface). The vertical load-bearing member 112 is a member that receives the vertical load of the vibration-isolating side wall 130 and has the performance of suppressing vibration, and can be formed from various conventionally used materials, such as long flat rubber plates or rubber material processed into blocks. Furthermore, as shown in Figure 5, the vertical load-bearing member 112 can also have grooves or irregularities on both sides, in which case a resin panel 116 can be laid on the upper surface of the vertical load-bearing member 112.

[0031] If the vibration-isolating slab 110 includes a vertical load-bearing member 112, the floor vibration isolation material 111 is laid in the area where the vertical load-bearing member 112 is not installed, that is, in the area excluding the downward projection surface of the vibration-isolating side wall 130. Note that, as shown in Figure 4, the thickness of the vertical load-bearing member 112 can be larger than that of the floor vibration isolation material 111 (e.g., 10 mm) or 25 mm. Of course, floor vibration isolation material 111 and vertical load-bearing member 112 can also be used with equivalent thicknesses.

[0032] As explained earlier, the vertical load-bearing material 112 can be made from long flat plates or blocks, but considering the installation work, a strip-shaped material such as a long flat plate is preferable. If block-shaped vertical load-bearing material 112 is used, as previously described with reference to Figure 14, it is necessary to cut a notch in the panel-shaped vibration-damping material PV, fit the vertical load-bearing material 112 into the notch, and then apply masking tape around the vertical load-bearing material 112, which requires considerable labor and time. In contrast, as shown in Figure 6, using a strip-shaped vertical load-bearing material 112 eliminates the need for notching and fitting work, making it preferable. Figure 6 is a plan view of the observation bathroom seen from above, with the upper half of the figure showing the placement surface of the vertical load-bearing material 112 (i.e., the lower side of the vibration-damping side wall 130) and the lower half showing the top surface of the vibration-damping side wall 130. As shown in this figure, the strip-shaped vertical load-bearing member 112 can be laid as a series below the vibration-damping side wall 130, making the work easy.

[0033] (Waterproof slab) Figure 7 is a schematic cross-sectional view of the waterproof slab 120. As shown in this figure, the waterproof slab 120 is composed of a horizontal slab (hereinafter specifically referred to as the "foundation slab 122"), an upper waterproofing material 121 laid on the upper surface of the foundation slab 122, and a retaining concrete (hereinafter specifically referred to as the "upper waterproofing retaining concrete 123") laid on the upper surface of the upper waterproofing material 121. In addition, a mortar layer 124 and a tile layer 125 can be provided on the upper surface of the upper waterproofing retaining concrete 123.

[0034] The upper waterproofing material 121 is designed to prevent water from flowing downwards (especially to the floor below) from the bathtub, washing area, and machine room of the observation bathroom. For example, it can be made of asphalt waterproofing material. Of course, the upper waterproofing material 121 is not limited to asphalt waterproofing and can be made of various conventionally used waterproofing materials. Although the floor vibration isolation material 111 is described as having the ability to separate the edges between the upper and lower members, the upper waterproofing material 121 does not separate the edges between the upper and lower members. Rather, the upper waterproofing material 121 is laid when the upper and lower members (i.e., the foundation slab 122 and the upper waterproofing retaining concrete 123) are integrated.

[0035] (Vibration-isolating side wall) Figure 8 is a schematic diagram of the vibration-isolating side wall 130, and is a partial cross-sectional view showing the portion where the end of the waterproof slab 120 is joined. As shown in this figure, the vibration-isolating side wall 130 is composed of a wall body (hereinafter referred to in particular as "foundation wall body 133"), and may also be composed of a wall vibration isolation material 131, a horizontal load receiving material 132, and a waterproof layer.

[0036] The wall vibration isolation material 131 of the vibration-isolating side wall 130 is planar, similar to the floor vibration isolation material 111 of the vibration-isolating slab 110, and can utilize a flat plate molded from closed-cell foamed plastic made from polyolefin resin. Alternatively, the wall vibration isolation material 131 can be formed using various conventional vibration isolation materials, such as planar materials made from other synthetic resins (rubber, etc.). In Figure 8, a waterproof layer is provided between the wall vibration isolation material 131 and the vertical wall 220, but the wall vibration isolation material 131 can also be laid so as to be in contact with the front surface of the vertical wall 220 of the observation bathroom. Furthermore, since the wall vibration isolation material 131 reduces the transmission of load to the vertical wall 220 behind the vibration-isolating side wall 130, it is preferable to lay it on the part of the vibration-isolating side wall 130 that faces the vertical wall 220.

[0037] As shown in Figure 8, where the ends of the waterproof slab 120 are joined, a horizontal load from the waterproof slab 120 acts during an earthquake, and this earthquake-induced horizontal load acts on the vertical wall 220 of the observation bathroom. Therefore, it is advisable to place a horizontal load-bearing member 132 at this location. In order to efficiently receive the earthquake-induced horizontal load from the waterproof slab 120, the horizontal load-bearing member 132 should be laid on the side of the waterproof slab 120, or more specifically, on the surface (lateral projection surface) onto which the end face of the horizontal load-bearing member 132 (the left end face in the figure) is projected. However, considering that the horizontal load-bearing member 132 reduces the effect on the vertical wall 220, it is advisable to provide the vertical wall 220 in the portion of the vibration-damping side wall 130 that faces the vertical wall 220. In other words, when the vibration-damping side walls 130 on both sides shown in Figure 2 face the vertical wall 220, horizontal load-bearing members 132 are installed, but it is not necessarily required to install horizontal load-bearing members 132 on the intermediate vibration-damping side wall 130 shown in Figure 2(b).

[0038] The horizontal load-bearing member 132 is a component that receives the horizontal load during an earthquake from the waterproof slab 120 and also has the ability to suppress vibrations. It can be formed from various conventional materials, such as long flat rubber plates or rubber material processed into blocks. However, considering the installation work, it is preferable to use a strip-shaped material such as a long flat plate for the horizontal load-bearing member 132, similar to the vertical load-bearing member 112. In addition, the horizontal load-bearing member 132 can have grooves or irregularities on both sides, as shown in Figure 5, in which case a resin panel 116 can be laid on the front surface of the horizontal load-bearing member 132.

[0039] If the vibration-isolating side wall 130 includes a horizontal load-bearing member 132, the wall vibration isolation material 131 is laid in the area where the horizontal load-bearing member 132 is not installed, that is, in the area excluding the lateral projection surface of the waterproof slab 120. Note that, as shown in Figure 8, the wall vibration isolation material 131 can be 10 mm thick and the horizontal load-bearing member 132 can be 25 mm thick, with the horizontal load-bearing member 132 having a larger thickness. Of course, it is also possible to use wall vibration isolation material 131 and horizontal load-bearing member 132 with equivalent thicknesses.

[0040] Furthermore, the vibration-damping side wall 130 may also include an upper waterproofing material 121, as shown in Figure 8. In this case, the upper waterproofing material 121 of the waterproof slab 120 is placed on the vibration-damping side wall 130 so as to be continuous with the upper waterproofing material 121 of the waterproof slab 120, that is, a series of upper waterproofing materials 121 are placed on the waterproof slab 120 and the vibration-damping side wall 130. This prevents water from the bathtub, washing area, machine room, etc., of the observation bathroom from flowing to the sides (especially to adjacent guest rooms).

[0041] By the way, it was explained that the horizontal load receiving member 132 should be installed on the part of the vibration-isolating side wall 130 that faces the vertical wall 220, but as shown in Figure 9, it is also good to install the horizontal load receiving member 132 at the point where the end face of the vibration-isolating slab 110 (the right end face in the figure) abuts against the vertical wall 220 of the observation bathroom. During an earthquake, the horizontal load from the vibration-isolating slab 110 acts on the vertical wall 220, and the horizontal load receiving member 132 receives this earthquake-induced horizontal load. In order to efficiently receive the earthquake-induced horizontal load from the vibration-isolating slab 110, it is best to install the horizontal load receiving member 132 on the side of the vibration-isolating slab 110, or more specifically, on the end face of the vibration-isolating slab 110 that faces the vertical wall 220.

[0042] (Test results) The inventors conducted tests to confirm the effectiveness of the waterproof sound-insulating structure 100 of the present invention. Figures 10 to 12 are frequency response diagrams showing the test results.

[0043] Figure 10 shows the results of measuring a sound source located before filling the bathtub of an actual observation bath installed in the building. This measurement test was conducted in accordance with JIS A1418-1, and a tapping machine was used as the sound source. As shown in Figure 10, the lightweight floor impact sound level is Lr-50 between guest rooms where vibration isolation measures have not been taken, but a maximum of Lr-35 is secured in the large bath area where the waterproof sound insulation structure 100 of the present invention is adopted. Furthermore, Lr-45 is secured in the washing area, and it was confirmed that there are no problems with the sound insulation performance. In addition, when a trial stay was conducted at the facility and auditory confirmation and noise measurement were performed in the guest room directly below the observation bath while it was in operation, auditory confirmation confirmed a quietness in which no one could sense the bath being used, and the noise level in the center of the room when the air conditioning equipment was in operation was approximately 27 dBA.

[0044] Figures 11 and 12, like Figure 10, show the results measured in accordance with JIS A1418-1. However, in Figure 11, the sound of a bathtub falling onto the PC slab was measured from the floor below, and in Figure 12, the sound of a showerhead falling onto the PC slab was measured from the floor below. In Figures 11 and 12, the frequency response diagram on the left shows the result of dropping a bathtub or the like onto two PC slabs (75mm + 150mm), while the frequency response diagram on the right shows the result of dropping a bathtub or the like onto one PC slab (75mm). As shown in Figures 11 and 12, the bare concrete surface without vibration damping measures shows a lightweight floor impact sound level of approximately Lr-65, but the case employing the waterproof sound insulation structure 100 of the present invention shows a lower lightweight floor impact sound level (approximately Lr-45) than the bare concrete surface. Thus, it was found that the waterproof sound insulation structure 100 of the present invention is effective in suppressing noise from the upper floor. [Industrial applicability]

[0045] The waterproof and soundproof structure of the present invention can be used in various facilities that handle water, such as panoramic public baths in hotels, bathrooms in apartment buildings, swimming pools and other facilities that store water, as well as kitchens and washing facilities for products and machinery. [Explanation of Symbols]

[0046] 100 Waterproof and soundproof structure of the present invention 110 (Waterproof and soundproof structure) Vibration-damping slab 111 Floor vibration isolation material (for vibration isolation slabs) 112 Vertical load bearing member (of vibration-isolating slab) 113 Vibration-damping retaining concrete (for vibration-damping slabs) 114 Lower waterproofing material (of vibration-damping slab) 115 (Vibration-damping slab) Lower waterproofing concrete 116 (Vibration-isolating slab) resin panel 120 (Waterproof and soundproof structure) Waterproof slab 121 Upper waterproofing material (of the waterproof slab) 122 (Waterproof slab) Foundation slab 123 (Waterproof slab) Upper waterproofing concrete 124 Mortar layer (of waterproof slab) 125 (Tile layer of waterproof slab) 130 (Waterproof and soundproof structure) Vibration-damping side wall 131 Wall vibration isolation material (for vibration-isolating side walls) 132 Horizontal load bearing member (of vibration-isolating side wall) 133 Foundation wall (of vibration-isolating side wall) 210 (Floor slab of the observation bathroom) 220 (Vertical wall of the observation bath) LP sound insulation layer LV waterproof layer PD drain pipe PS hot water pipe PV panel-shaped vibration isolation material RS load-bearing material SL Lower Slab SP space SU Upper Slab

Claims

1. A structure installed in a water utilization room where water is used, which suppresses sound transmitted to the floor below the water utilization room, A vibration-damping slab is placed on the floor slab of the aforementioned water utilization room, A waterproof slab is positioned above the vibration-damping slab, with a distance between them such that a space is formed, The vibration-damping slab includes a vibration-damping side wall that rises from the upper surface of the vibration-damping slab and supports the waterproof slab, The vibration-isolating slab is composed of a planar floor vibration-isolating material and a retaining concrete laid on top of the floor vibration-isolating material. The aforementioned waterproof slab is composed of a foundation slab, an upper waterproofing material laid on the upper surface of the foundation slab, and a retaining concrete laid above the upper waterproofing material. A waterproof and soundproof structure characterized by the following features.

2. The vibration-isolating slab includes a vertical load-bearing member laid on the downward projection surface of the vibration-isolating side wall, The aforementioned vertical load-bearing member is formed of an elastic material having vibration-damping properties. The floor vibration isolation material is laid in the area where the vertical load-bearing member is not installed. The waterproof and soundproof structure according to claim 1.

3. The aforementioned vertical load-bearing member is a strip-shaped member. The waterproof and soundproof structure according to claim 2.

4. The vibration-damping side wall is a wall surface facing the vertical wall of the water utilization chamber and includes a horizontal load-bearing member laid on the lateral projection surface of the waterproof slab. The horizontal load-bearing member is formed of an elastic material having vibration-damping properties. A waterproof and soundproof structure according to claim 1 or 2.

5. The vibration-damping slab includes the horizontal load-bearing member, The aforementioned horizontal load-bearing member is laid on the end face of the vibration-damping slab facing the vertical wall of the water supply chamber. The waterproof and soundproof structure according to claim 4.

6. The vibration-damping side wall includes a planar wall vibration-damping material. The wall vibration isolation material is laid in the portion where the horizontal load receiving material is not installed. The waterproof and soundproof structure according to claim 4.

7. The vibration-damping slab includes a waterproof layer, The aforementioned waterproof layer comprises a lower waterproofing material and a concrete overlay laid on top of the lower waterproofing material. A waterproof and soundproof structure according to claim 1 or 2.

Images