JP2004332340A - Wooden floor structure of apartment and its construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solid plate flooring floor structure, and its construction method, free in electric and OA wiring, and easy in construction, by thinning the thickness from a structure while having the superior soundproof effect. <P>SOLUTION: This wooden floor structure has a sound insulating sheet 2 stretched over a structural surface, a backing set 3 arranged on the sound insulating sheet, a backing plate 4 stretched over the backing set 3, a sound insulating sheet 5 stretched over this backing plate, and a wooden flooring 6 stretched over the sound insulating sheet. The backing set 3 has soundproof shock absorbing members 7 arranged at a prescribed interval on the sound insulating sheet, floor joists 8 forming a row on these shock absorbing members 7, and a mat-shaped soundproof material 9 filled between floor joist rows. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wooden floor structure of an apartment and a method of constructing the same.
[0002]
[Prior art]
There are many demands for the floors of apartments to be made of wooden flooring. The biggest problem then is the transmission of sound downstairs. As a countermeasure for this, the following construction method has conventionally been adopted.
▲ 1 ▼ Jika method The method of sticking the wooden flooring integrated with the soundproofing material with soundproofing material such as rubber on the back side of the wooden flooring with adhesive, etc. on the apartment structure such as concrete with adhesive This method is the same as that used for dew tanning.
[0003]
(2) System construction method 1
A method of laying soundproof and vibration-proof mats, installing a fixed mat for the flooring on it, and sticking wooden flooring.
(3) System construction method 2
A method in which a pillar with soundproof and vibration-proof rubber feet is set up on a structure such as concrete, a soundproof base plate is supported on those pillars, and wooden flooring is attached to this.
[0004]
The method (1) has an advantage that the construction is simple and the floor does not become thick, but has a problem that a soundproof effect cannot be expected so much and a wiring space for electricity or the like is hardly taken up.
The method of (2) can be expected to have a soundproofing effect, but the problem is that the floor is thicker than 100 mm, a special soundproof and vibration proof mat is used, the price is high, and the floor tends to have fluffy feeling. is there.
The method of (3) can be expected to have a soundproofing effect and can easily eliminate the improper adjustment of the level of the existing floor. However, when the floor becomes thicker up to about 200 mm, the price increases, and when a muk board is used for the flooring. There was a problem in that the characteristics of wood, such as warping and bending, could not be stopped.
[0005]
[Problems to be solved by the invention]
The present invention has been made in order to solve the above-mentioned problems, and has an object to provide a thin sound from a structure while having a good soundproofing effect, and free of electricity and OA wiring. It is an object of the present invention to provide a wooden flooring structure of a condominium that can be easily and quickly constructed, and a construction method thereof.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the wooden floor structure of the condominium of the present invention includes a sound insulation sheet stretched on a structural surface, a base set provided on the sound insulation sheet, and a base plate stretched on the base set. A sound insulation sheet stretched on the base plate, and a wooden flooring stretched on the sound insulation sheet, wherein the base set includes a soundproof cushioning member arranged on the sound insulation sheet; It is characterized by being composed of joists arranged in rows on the member, and a mat-like soundproofing material filled between the joist rows.
[0007]
Further, the soundproofing construction method of the present invention includes a step of stretching a soundproof sheet on a structural surface, placing a joist on the soundproof sheet via a soundproof cushioning member, and positioning the joist by a soundproof pressing member. Fixing and filling the soundproofing material between each joist row to obtain a base set, a step of stretching a base plate on the surface of the base set, and a step of stretching a sound insulation sheet on the base plate The method is characterized by going through a process of stretching a wooden flooring on the sound insulation sheet.
[0008]
The following various aspects can be adopted for the combination of the soundproof pressing member, the cushioning member, and the joist.
1) A buffer member, a joist, and a holding member made of separate members are used. The buffer member is arranged on the sound insulation sheet, the joist is placed on the buffer member, and the holding member is applied from above the joist. The lower part is bent to form a seat, and the seat is fixed to the structure 1.
2) A joist integrated with the cushioning member, and a holding member having an upper surface portion, a side surface portion bent therefrom and a seat portion are used, and the shock absorbing member integrated with the joist is arranged on the sound insulation sheet, and the holding member is provided. Over the joists and secure the seat to the structure.
3) A holding member having a joist, an upper surface portion, a side surface portion bent therefrom, and a seat portion and having an integrated cushioning member is used. The joist is inserted through the holding member, and the seat portion is fixed to the structure.
[0009]
INDUSTRIAL APPLICABILITY The present invention is applied not only to the interior of a newly-built condominium, a hallway, etc., but also to the renovation of an existing condominium, a hallway and the like.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
1 to 3 show an embodiment of a soundproof type wooden floor structure of an apartment according to the present invention.
Reference numeral 1 denotes a structure such as an apartment room or a corridor, which is generally made of a concrete slab. The structure is generally measured prior to construction, and the level is generally adjusted by, for example, applying mortar to the surface, but even if the level is adjusted by setting the thickness of the cushioning member itself described below. Good.
[0011]
Reference numeral 2 denotes a sound insulation sheet attached to the entire surface of the structure surface 101 whose level has been adjusted.
Reference numeral 3 denotes a base set provided on the sound insulating sheet 2, a buffer member 7 made of an elastic material having a sound insulating property, for example, rubber, arranged on the sound insulating sheet 2 at a predetermined interval, for example, 250 to 500 mm, and the buffer members 7 It has a row of joists 8 supported by 7, 7 and a mat-like sound insulating material 9 densely filled between the joist rows. The joist 8 extends in the Y direction and the X direction, and the “Y direction and the X direction” include a case where the joist 8 has an appropriate inclination depending on the shape of the floor.
[0012]
The position of the joist 8 in each row is fixed by a band-shaped holding member 10 mainly composed of a sound insulating elastic material. In order to eliminate a partial increase in thickness due to the mounting of the holding member 10, a level adjusting strip 11 made of a sound insulating elastic material is provided on the upper surface of the joist exposed between the holding members 10, 10. Accordingly, the upper surface of the soundproof material 9 and the upper surface of the holding member 10 are flush with each other.
[0013]
Reference numeral 4 denotes a plywood / artificial wood panel or the like, a base plate laid on the upper surface of the base set 3, a sound insulating sheet 5 closely adhered to the base plate 4, and 6 affixed on the sound insulating sheet 5. The desired wooden flooring.
[0014]
In other words, the soundproof type wooden floor according to the present invention includes a sound insulation sheet layer, an underlaying layer made of a group of joists supported by a buffer member and a soundproof material filled between the joists, and , A sound insulation sheet layer covering the base plate layer, and a wooden flooring layer stuck thereon.
[0015]
4 to 11 show an example of a construction method of the soundproof type wooden floor structure step by step, and schematically, a sound insulation sheet sticking step, a base assembling step, a base plate sticking step, a sound insulation sheet sticking step, and It consists of a wooden flooring application process. In this example, the direction in which the wooden floor is stuck is the X direction.
In a normal case, a structure level adjustment is performed to adjust the state of the existing structure in the portion where the wooden flooring is installed to a level according to the work content. The existing structure 1 is generally a concrete slab, but the level differs depending on the construction accuracy and the deflection of the slab. Secure a slope surface and a step surface. However, when the construction area is small or the like, the level may be adjusted by adjusting the thickness of the cushioning member in the base assembling step described later.
[0016]
[Sound insulation sheet sticking process]
This step is performed in order to obtain a final soundproofing effect on the lower floors of the residual sound reduced by the soundproofing effect of the upper layer (base layer + baseplate layer + sound insulation sheet layer). As shown in FIG. 4, a sound insulation sheet 2 having a thickness of, for example, 1.0 to 1.2 mm is used, and is laid so as to cover the entire wooden floor construction target area and the rising portions 1 a and 1 a near the wall in a bag shape. The united sound insulation sheets 2 are joined together by a sound insulation tape 200 having an adhesive surface, with a predetermined overlapping width secured at the flat portion. The direction at this time is desirably a direction intersecting the joist row (the X direction in this example) in order to make the joist level uniform.
The rising portion 2 'near the wall has a sufficient rising dimension to the extent that does not hinder the finishing of the wall, and this is also attached to the base of the wall with a sound insulating tape.
Thus, the state shown in FIG. 4 is obtained.
[0017]
[Underlayer assembly process]
This step is shown in FIGS. 5 to 8 and is a characteristic and important step in the present invention, and reliably absorbs the life-producing sounds directly applied to the wooden flooring and does not transmit the vibration to the structure 1. The object of the present invention is to secure the groundwork structure that enables safe and secure installation of an important part of the living space, such as the floor, while avoiding the generation of reverberation due to the vibration of air.
[0018]
The materials used in this step are the cushioning member 7, the joist 8, the holding member 10, the level adjusting strip 11 and the soundproof material 9.
As the cushioning material 7, a rubber material having a size of 90 mm square and a thickness of 1 to 4 mm is used, for example, and is arranged on the sound insulating sheet 2 in a grid shape at intervals of 250 to 500 mm as shown in FIG.
[0019]
The joists 8 are linearly arranged on the buffer members 7, 7 having such an arrangement. In this example, they are arranged in the X direction. The joist 8 is a beam or a skeletal member for stably fixing a wooden flooring and supporting a load applied to the flooring, and is obtained by cutting plywood or artificial wood. The dimensions are, for example, 90 mm in width and 24 mm in height, and the joist 8 is supported on its lower surface by the cushioning member 7. The buffer member 7 supports the joist 8 while preventing vibration and sound from being directly transmitted from the joist 8 to the structure 1.
The buffer member 7 is prepared in several thicknesses, or the height on the sound insulating sheet 2 is changed by stacking the standard thickness, so that the level can be adjusted at the same time. it can. That is, the buffer member 7 also functions as a level adjusting material.
[0020]
Each joist row thus configured is fixed by the holding member 10 so as not to be displaced. The holding member 10 preferably has a soundproofing property such as rubber. In this example, a band 10a and an attachment member 10b for fixing the band 10a to the structure 1 are used. The attachment member 10b may be an adhesive, but in this example, a concrete nail paired with a washer is used.
[0021]
The band body 10a can be easily obtained by, for example, cutting a rubber band wound into a roll having a width of 90 mm and a thickness of 2 mm. The length of the band 10a is twice the width of the joist + twice the thickness of the joist + twice the length of the portion attached to the sound insulation sheet.
As shown in FIG. 6A, the band 10a is pressed from the top of the joist 8 at a predetermined length, for example, at the position of every other buffer member 7, from the upper edge of the joist 8 to the side of the joist. The seats 100 and 100 are bent so as to be attached to each other and bent from a position in contact with the sound insulating sheet 2, and the seats 100 and 100 are fixed to the structure 1 with the mounting members 10 b.
[0022]
Thereby, the position of each joist row is firmly fixed at predetermined intervals. Moreover, when the joists are directly fixed to the skeleton with nails or bolts, the vibration is transmitted to the skeleton through the nails or bolts. However, the seat is formed of an elastic material having sound insulation properties, and the seat is formed indirectly by the mounting member 10b applied thereto. Since the attachment is performed, the vibration is blocked by the band 10a and is not transmitted to other parts.
[0023]
When each joist row is fixed as described above, the level of the upper part of the joist 8 becomes uneven by the thickness of the band. Therefore, the level adjustment strip 11 is arranged on the upper surface of the joist 8 between the strips 10a and 10a. If necessary, lightly adhere to the upper surface of the joist 8 with an adhesive. The level adjusting strip 11 is simple because it is only necessary to cut the same material as the strip 10a to a predetermined length.
As a result, the joists 8 of each joist row have a lower surface in contact with the sound-insulating cushioning material 7 and an upper surface in contact with the sound-insulating band 10a and the level-adjusting strip 11, so that the joists 8 are in a sandwich shape with the sound insulating material. Transmission is greatly reduced. Further, since the entire upper surface is covered with the band body 10a and the level adjusting strip 11 having the same thickness, a uniform upper surface level without unevenness is obtained.
The cord C such as an electric wire or a telephone line can be freely wired by cutting the joists 8, 8 as shown in FIG.
[0024]
Since the state shown in FIG. 7 is obtained by the above operation, the soundproof material 9 is then filled. When the wooden flooring 6 is pasted on the baseboard 4 directly on the joist row, the cavity between the joist rows below the baseboard 4 gives the sound of the upper floor to the lower floor like the drum body. The sound-insulating material 9 is filled in order to prevent such a phenomenon and at the same time to improve the heat insulating performance of the floor.
[0025]
The sound insulating material 9 may be any known material, for example, a material having a thickness of about 20 to 30 mm, such as a rock wool mat or a glass wool mat, is filled between the joist rows as shown in FIG. . Although no fixing or bonding is required, the sound-insulating material 9 is filled without gaps so that the lower surface of the sound insulating material 9 contacts the sound insulating sheet 2 and the upper surfaces of the sound insulating material 9 match the levels of the band 10a and the level adjusting strip 11. FIG. 9 shows a state in which the soundproofing material filling step has been completed.
[0026]
(Base plate pasting process)
This step is performed in order to hold the base set 3 from above and to obtain a stable and reliable fixing of the wooden flooring.
As the material, for example, a plywood or an artificial wood panel of 900 × 1800 × 12 mm is used, and the base plate 4 is closely adhered to the base set 3 and laid, and is fixed to the joist 8 with a fixing fitting such as a screw nail or a wood screw. The fixing metal must not reach the structure 1 and has a length that does not exceed the sum of the buffer member 7 + the joist 8 + the band 10 a + the base plate 4. FIG. 10 shows a completed state of this step.
[0027]
[Sound insulation sheet sticking process]
This step is performed in order to more effectively function the lower soundproofing structure in order to isolate the living sound directly applied to the wooden flooring 6 in the vicinity of the source.
The sound insulation sheet 5 may be the same as the sound insulation sheet 2 used in the previous sound insulation sheet sticking step, or may be lower in accuracy depending on the required sound insulation performance.
It is preferable to completely cover the construction area, do not overlap, cut with a sharp blade from the overlap, remove excess, and join the cut edges, and connect with a thin cloth tape. The rising portion connected to the wall does not interfere with the finishing of the wall, and may be sufficiently raised and fixed with a baseboard or the like. FIG. 11 shows a state in which this step has been completed. Since the sound insulating sheet 5 serves as an intervening layer for preventing the base plate 4 and the wooden flooring 6 from directly contacting each other, the sound insulating effect is higher than that of installing a sound insulating sheet under the base plate 4.
[0028]
[Wood flooring sticking process]
This step is the final step, and the wooden flooring 6 to be used is not limited. Regardless of the material, such as cypress and cedar, it is preferable that it is a sufficiently dry material, and it is preferable to use a complete muk board or three layers. A plate or the like is generally used. The dimensions are arbitrary, for example, those having a size of 12 to 30 mm are used and are arranged so as to be orthogonal to the joist rows.
Through the above steps, the soundproof wooden floor shown in FIGS. 1 to 3 is completed.
[0029]
The above-mentioned soundproof wooden floor structure and construction method are merely examples, and the present invention is not limited thereto.
1) The cushioning member 7 is not necessarily in the form of a small piece, but may be in the form of a band, and may support the entire lower surface of the joist 8. In this case, there is no gap between the sound insulating sheet 2 and the surface.
[0030]
2) Although the cushioning member 7 is a separate member in the above embodiment, it may be a unit or an assembly that is previously joined to the lower surface of the joist 8 at predetermined intervals as shown in FIG. In this case, the work of distributing the cushioning members 7 can be omitted, and if the joists 8 are arranged on the sound insulating sheet 2, a row of joists supported by the cushioning members 7 can be obtained immediately.
[0031]
3) The holding member is not limited to a belt. That is, as shown in a holding member 10 ′ in FIG. 12B, an upper surface portion 102 for pressing the upper surface of the joist 8, side surface portions 103 and 103 for pressing the side surface of the joist 8, and seat portions 100 and 100 for mounting on the sound insulating sheet 2. It may be a molded article having
In the case of this mode, the upper surface and the side surface of the joist 8 are positioned by covering the joist 8 with the pressing members 10 ′ at predetermined intervals in a state where the joists 8 are arranged, so that the seat portion 100 contacts the sound insulating sheet 2. Therefore, it can be constructed by a simple operation of merely fixing the seat portion 100 with a mounting member (metal fitting or adhesive).
[0032]
4) The holding member may be integrated with the cushioning member. FIG. 13 shows this example, in which the pressing member 10 ″ includes an upper surface portion 102 that presses the upper surface of the joist 8, side surface portions 103 and 103 that press the side surface of the joist 8, and a seat portion 100 that is installed on the sound insulating sheet 2. In addition to 100, a lower surface portion 70 as a buffer member is integrally formed, and a window hole 104 conforming to the cross-sectional shape of the joist 8 is defined by the upper surface portion 102, the side surface portions 103 and 103, and the lower surface portion 70. I have.
13A shows a case where the upper surface portion 102, the side surface portions 103 and 103 and the lower surface portion 70 have the same thickness, FIG. 13B shows a case where the lower surface portion 70 has a larger thickness, and FIG. 2 shows the case where the thickness of the seat portion 100 is increased.
[0033]
In this case, simply inserting the joist 8 into the window hole 104 and fixing the seat portion 100 causes the joist 8 to be sandwiched by the lower surface portion 70 as a cushioning material and the upper surface portion 102 as a pressing member, and Is formed, so that workability is extremely good and efficiency can be achieved.
As a method, the holding member 10 ″ may be arranged on the sound insulation sheet 2 first, and the joist 8 may be inserted through the window hole 104 in this state, or the joist 8 may be first inserted into the plurality of holding members 10 ″. The assembly may be sequentially inserted through the window 104 to form an assembly, which may be disposed on the sound insulating sheet 2 and fixed.
[0034]
Operation of the embodiment
The wooden floor of the present invention uses the joist 8 to stably support the base plate 4 and affixes the wooden flooring 6 thereon, so that domestic and local timber can be used depending on the design of the interior and the taste. It can be freely selected and used, and can be constructed using the conventional construction method. Therefore, the use of domestic timber and local timber can be used for all of the interiors of condominiums, increasing the amount of use and leading to vitalization of forestry. In addition, natural materials, such as wood of Muku, make it possible to provide apartments with healthy housing specifications.
The wooden flooring 6 has its entire lower surface supported by a base plate 4, and the base plate 4 is supported by joists 8 at required intervals, and a mat-like soundproofing material 9 filled at the same level between the joist rows. Because it is in contact, no fluffy feeling is produced.
In the present invention, since the base set 3 including the joists 8 is provided, the base structure of the base set 3 can be used to serve also as the base of the partition wall, and the degree of freedom in arranging the rooms and partitions can be increased. In addition, since the soundproofing material 9 has a heat insulating property, the heat insulating performance of the floor can be enhanced.
Further, since no or little adhesive is used, no harmful components adversely affect the human body.
[0035]
With respect to soundproofing, transmission of sound and vibration given to the wooden flooring 6 to the base plate 4 is weakened by the sound insulation sheet 5 immediately below, and the baseplate 4 is a soundproof band of the pressing member 10 of the base set 3. Since the joists 8 support the base plate 10a or the upper surface 102 and the level adjustment strip 11, the sound and vibration of the base plate 4 are not transmitted to the joists 8, and the soundproof material 9 is densely provided between the joist rows. Since it is filled, it is absorbed, not transmitted in the horizontal direction, and does not generate reverberation. Furthermore, since the joist 8 is not directly supported but is indirectly supported on the structural part side by the cushioning member 7 or the lower surface portion 70, the joist 8 is not transmitted downward, and the residual sound is not transmitted to the cushioning members 7, 7 or the lower surface portion 70. The sound is finally blocked by the sound insulating sheet 2 attached between the surfaces of the structures.
Therefore, excellent soundproofing can be realized while the finished thickness from the surface of the wooden flooring to the structure is as thin as about 50 to 60 mm.
[0036]
Specific examples and results of performance experiments are shown below.
(1) Experimental equipment:
A 20 mm styrofoam was stretched on the outside of a cubic cylinder having an inner dimension of 900 mm made of plywood having a thickness of 24 to make a soundproofed upper and lower open box. A 900 × 900 × 20 mm plate was placed at a position 600 mm below the upper part of this box, and concrete was poured into the upper part at a thickness of 100 mm to make the existing structural surface of the simulated condominium. And
The upper part of the concrete is a virtual living space, and the lower part is a virtual living space downstairs.
(2) Measurement method:
The following five types of wooden soundproof floors are installed on the existing structural surface of the simulated apartment, and golf balls (high-temperature impact sound) and soft balls (low-impact sound) are dropped from the same height, and 500 mm from the concrete upper surface The sound volume was measured with a sound level meter (LA1240, manufactured by Ono Sokki) installed below.
[0037]
(3) Types of wooden soundproof floor Comparative example 1: Concrete base as it is Comparative example 2: Laying floor method (the system method 2), total thickness 95 mm.
Comparative Example 3: Soundproof sheet (1 mm) + pillar with soundproof and vibrationproof rubber (100 mm) + soundproof material (100 mm) + base plate (12 mm) + plywood flooring (15 mm), total thickness 128 mm.
[0038]
Comparative Example 4: Sound insulation sheet (1 mm) + base set (30 mm) + soundproof sheet (1 mm) + base plate (12 mm) + floor board (15 mm), total thickness 59 mm.
The base set is the same as the present invention described later.
The present invention: sound insulation sheet (1 mm) + base set (30 mm) + base plate (12 mm) + sound insulation sheet (1 mm) + + floor board (15 mm), total thickness 59 mm.
The base set employed the aspect of the first embodiment. That is, a joist row was composed of a rubber buffer member + a joist + a holding member made of a rubber band / rubber strip, and a rock wool mat was filled between the joist rows.
[0039]
The sound volume was measured three times, and the average value was obtained. The value when the falling object is a golf ball is the A value (dB), and the value when the falling object is a soft ball is the B value (dB).
Comparative Example 1 had an A value of 83.08 and a B value of 81.49.
Comparative Example 2 had an A value of 73.12 and a B value of 75.08.
In Comparative Example 3, the A value was 74.79 and the B value was 76.84.
In Comparative Example 3, the A value was 76.39 and the B value was 75.24.
In Comparative Example 3, the A value was 71.86 and the B value was 74.23.
[0040]
As is clear from these results, it is understood that the wooden floor of the present invention has very excellent soundproofing performance despite its small thickness.
[0041]
【The invention's effect】
According to the first aspect of the present invention described above, the finished surface of the wooden flooring can be ensured with a thin thickness of about 50 to 60 mm from the structure, and the soundproof base is disposed on the soundproof sheet 2 and the soundproof sheet. A base set 3 including a cushioning member 7 and 70 made of soundproofing material, joists 8 mounted and fixed on the above in a row, and a soundproofing material 9 filled between the joist rows; Since it is composed of the sound insulating sheet 5 interposed between the wooden flooring 4 and the wooden flooring 6, a good soundproofing performance can be obtained while having a stable wooden floor structure and a thin thickness, and the heat insulating performance is also good. The base set can also be used as a base for the partition wall, and excellent effects are obtained such that electricity and OA wiring can be freely performed.
[0042]
According to claim 2, it is sufficient with inexpensive members, it can be carried into the high-rise part of the condominium by means of an existing elevator or the like, and does not require any special skills. An excellent effect that a wooden floor having high soundproofing effect can be constructed in a short time can be obtained.
According to the third aspect, there is obtained an excellent effect that a stable underlayer having no level difference and excellent soundproofing can be formed.
According to the fourth aspect, since expensive and special materials are not required as the material, the cost can be reduced. According to the fifth aspect, the base assembling process can be performed simply and efficiently. An excellent effect is obtained in that the number of members can be reduced and the base assembling process can be performed simply and efficiently.
[Brief description of the drawings]
FIG. 1 is a partially cutaway plan view showing an example of a wooden floor structure of an apartment according to the present invention.
FIG. 2 is an enlarged sectional view taken along line II-II of FIG.
FIG. 3 is an enlarged sectional view taken along line III-III of FIG.
FIG. 4 (a) is a plan view showing a completed state of a sound insulation sheet sticking step in the present invention, and FIG. 4 (b) is a cross-sectional view.
FIG. 5A is a perspective view of a cushioning material used in a base assembling step, and FIG. 5B is a plan view showing a distribution state of the cushioning material.
6A is a partial perspective view showing a relationship between a joist and a holding member in a foundation assembling step, FIG. 6B is a plan view showing a state in which the joist is distributed, and FIG.
FIG. 7A is a vertical sectional front view of a base set, and FIG. 7B is a cross-sectional view taken along line XX of FIG.
FIG. 8 is a partial perspective view showing a sound-insulating material filling stage of the base assembly process.
9A is a plan view of a completed state of the base set, and FIG. 9B is a cross-sectional view taken along line IX-IX of FIG. 9A.
FIG. 10 is a partially cutaway plan view showing a state in which a base plate has been pasted.
FIG. 11 is a plan view showing a state after the sound insulation sheet attaching step is completed.
FIGS. 12A and 12B are cross-sectional views showing another embodiment of a joist, a cushioning member, and a holding member according to the present invention.
13 (a), (b) and (c) are cross-sectional views showing another embodiment of the cushioning member and the holding member according to the present invention.
FIG. 14 is a perspective view showing a use state of FIG. 13;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Structure 2 Sound insulation sheet 3 Base set 4 Base plate 5 Sound insulation sheet 6 Wooden flooring 7 Buffer member 8 Joist 9 Sound insulation material 10, 10 ′, 10 ″ holding member

Claims (6)

A sound insulation sheet stretched over a structural surface, a base set provided on the sound insulation sheet, a base plate stretched over the base set, a sound insulation sheet stretched over the base plate, and a sound insulation sheet A wooden flooring stretched over the sound-insulating sheet, wherein the base set includes sound-insulating buffer members arranged at predetermined intervals on a sound-insulating sheet; A wooden floor structure of a condominium, which is provided with a mat-shaped sound-insulating material filled into the floor. A step of stretching a sound insulation sheet on the structural surface, placing the joists on the sound insulation sheet via a soundproof cushioning member, fixing the joist position with a soundproof holding member, and soundproofing between each joist row. Filling a material to obtain a base set, setting a base plate on the surface of the base set, setting a sound insulating sheet on the base plate, and setting a wooden flooring on the sound insulating sheet. A method for constructing a wooden floor structure of an apartment, which comprises a step of setting up. 3. The method for constructing a wooden floor structure of an apartment according to claim 2, wherein the step of obtaining the base set includes adjusting a level by locating a soundproof strip on the upper surface of the joist between the holding members. A buffer member, a joist, and a holding member made of separate members are used, the buffer member is arranged on the sound insulation sheet, the joist is placed on the buffer member, and the holding member is applied from above the joist. The wooden floor structure construction method for a condominium according to claim 2, wherein the upper surface is bent along the joist side surface, and the lower portion is bent to form a seat, and the seat is fixed to the structure. A joist integrated with the cushioning member, and a holding member forming an upper surface portion, a side surface portion bent therefrom, and a seat portion are used. The buffer member integrated with the joist is arranged on the sound insulation sheet, and the holding member is joisted. The method for constructing a wooden floor structure of an apartment according to claim 2, wherein the seat is fixed to the structure. 3. A holding member having a joist, an upper surface portion, a side surface portion bent therefrom, and a seat portion and having a buffer member integrated therein, wherein the joist is inserted through the holding member and the seat portion is fixed to the structure. The wooden floor structure construction method for condominiums described in.

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