JPH0842020A - Vibration-proof floor structure - Google Patents

Abstract

PURPOSE:To prevent vibration from propagating to bearing walls in lowerfloors and reduce the influence of vibration from upper floors to lowerfloors and further, arrange sound-absorbing materials to a space where their arranging was difficult formerly. CONSTITUTION:A floor structure 24a of a habitable room unit and a floor structure 24b of a roof unit are placed on the upper end face of the upper face side-connected heads 22 of an lowerfloor bearing wall 13 to support the upperfloor by the lowerfloor bearing wall 13. A vibration-proof sheet 33 absorbing the vibration of the upperfloor is interposed between the upper end face of the upper face side-connected heads 22 of the lowerfloor bearing wall 13 and the lower face of the lower face side-connected heads 28 of the habitable room unit floor structure 24a and the roof unit floor structure 24b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure of a building, and more particularly to a floor structure having a vibration damping function.

[0002]

2. Description of the Related Art A conventional vibration-isolating floor structure of this type is disclosed in, for example, JP-A-4-238935 as shown in FIGS. 6 and 7.
What is described in Japanese Patent Publication is known.

In such a structure, the floor plate 2 of the upper floor 1
Between the plurality of adjacent floor girders 3 supporting the field girders 3 arranged in parallel with the floor girders 3.

Both ends 4a, 4a of the field receiver 4 are side surfaces 5a of the upper joist 5 as a floor structure as shown in FIG.
The end surface 4b is brought into contact with the upper surface of the upper floor connecting member 6 and the lower surface side connecting portion 4c is placed on the upper surface 6a of the upper floor connecting member 6 and fixed by nails or the like.

Then, on the lower surface 4d of the field receiver 4,
.. are arranged with a plywood 4e having a thickness of about 9 mm interposed. For this reason, the field rim receiver 4 is fixed so that the field rims 5 are located about 9 mm below the lower surface 3a of the floor beam 3. The lower floor ceiling plate 6 is fixed to the fields 5.

In the conventional suspended ceiling structure thus constructed, the lower floor ceiling plate 6 and the floor plate 2 of the upper floor portion 1 are independently mounted by the field bridges 4 ... Therefore, the vibration of the floor plate 2 of the upper floor portion 1 transmitted from the lower floor ceiling plate 6 to the lower floor is blocked. Reference numeral 7 in the figure is a weight for reducing vibration.

Other types of this type are disclosed in Japanese Patent Application Laid-Open No. 2-43443, and further,
What is described in JP-A-60-112950 in which a vibration-proof material is interposed between the floor surface of the upper floor and the ceiling plate surface of the lower floor, and the vibration-proof material is used as the floor surface of the upper floor. And the concrete floor slab on the upper floor.
Those described in Japanese Patent No. 357 are known.

[0008]

However, in the conventional anti-vibration floor structure shown in FIGS. 6 and 7, the vibration of the floor plate 2 of the upper floor portion 1 transmitted from the lower floor ceiling plate 6 to the lower floor does not occur. The above-mentioned second floor joist 2 which is the upper floor structure which is cut off.
In the building having the bearing wall 13 on the lower floor, where the 7 and the lower face temporal joint 28 are placed to support the upper floor portion 1, the second floor joists 27 and the lower face temporal joint 28 to the bearing wall 13 on the lower floor. It is not possible to block the vibration transmitted to.

Particularly, in a unit house or the like which is a unit building in which a plurality of building units are combined, since another adjacent upper floor unit is provided as shown by the chain double-dashed line in FIG.
In some cases, the load bearing wall 13 may be structurally necessary, and in the load bearing wall 13 having a structure having an opening such as the passage space 17, the vibration of the upper frame portion 14 from the upper frame frame portion 14 of the load bearing wall 13 causes lower vibration to the lower floor. There was a problem that it was easy to get to.

In addition, in the space portion between the second floor joists 27, 27 of the upper floor 1 or between the lower surface temporal joints 28, 28, etc.
Since there is nothing to support the sound absorbing material and the like, and the sound absorbing material or the like falls down by its own weight, it is difficult to dispose the sound absorbing material or the like. Therefore, the space between the second floor joists 27, 27 of the upper floor 1 or the space between the lower side temporal joints 28, 28 to the upper side temporal joints 22, 22 of the lower floor and the frame main bodies 21, 22.
I was not able to block the sound that was transmitted to and from the room.

Therefore, according to the present invention, it is possible to prevent the vibration from propagating to the load bearing wall of the lower floor, reduce the influence of the vibration of the floor portion of the upper floor on the lower floor, and it has been difficult to dispose in the prior art. An object of the present invention is to provide a vibration-isolating floor structure in which a sound absorbing material or the like can be arranged in a space portion.

[0012]

In order to achieve the above object, according to the first aspect of the present invention, the upper floor structure is placed on the upper end surface of the lower bearing wall of the building. An anti-vibration floor structure for supporting an upper floor by a lower floor load-bearing wall, wherein the vibration-proof floor structure absorbs vibration of the upper floor between the upper end surface of the lower load bearing wall and the lower surface of the upper floor structure. It features an anti-vibration floor structure with a vibrating material interposed.

Further, in the structure described in claim 2, the building is a unit building, and the vibration-isolated floor structure is characterized in that.

Further, according to a third aspect of the present invention, the vibration-proof material comprises a horizontal sheet portion interposed between an upper end surface of the lower floor bearing wall and a lower surface of the upper floor structure. The vibration-isolating floor structure according to claim 1 or 2, characterized in that it has a sound-absorbing material portion integrally sandwiched and supported at a substantially central position of the horizontal sheet portion.

[0015]

[Operation] According to the claim 1 having such a configuration,
Since the vibration damping material that absorbs the vibration of the upper floor is interposed between the upper end surface of the lower floor bearing wall and the lower surface of the upper floor structure, the vibration generated in the upper floor is , Is absorbed by the vibration-proof material and does not reach the lower-layer bearing wall.

Therefore, the propagation of vibration to the lower floor bearing wall can be prevented, and the influence of the vibration of the upper floor portion on the lower floor can be reduced.

According to the second aspect of the present invention, even if the building is a unit building and the lower-layer bearing wall is structurally necessary, the propagation of vibrations to the lower-layer bearing wall is prevented. , It is possible to reduce the influence of the vibration of the upper floor on the lower floor.

Further, according to the third aspect of the present invention, since the sound absorbing material portion is supported by the horizontal sheet portion made of the vibration damping material, the sound absorbing material is substantially orthogonal to the horizontal sheet portion. It can also be supported. Therefore, it is possible to dispose the sound absorbing material in a space portion such as between the joists or between the head joints, which has been difficult to dispose conventionally.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show a vibration-isolating floor structure according to the first embodiment of the present invention. The same or equivalent parts as those in the conventional example will be described with the same reference numerals.

First, the structure will be described. On the lower floor 8 of the unit building of the first embodiment, there is a foundation 9 as shown in FIG.
A load bearing wall 13 is disposed above the first floor head connection 10 ..., First floor joists 11 ..., and a floor plate 12.

The load bearing wall 13 connects between the upper frame frame portion 14, the lower frame portion 15 arranged on the floor plate 12, and both ends of the upper frame frame portion 14 and the lower frame portion 15. It is mainly composed of side frame portions 16 and 16 that form a frame body, and a glass door 18 that is disposed in a passage space 17 surrounded by the frame portions 14 to 16.

Among these, as shown in FIG. 1, the upper frame frame portion 14 is a frame support member 20 for supporting the sash frame body 19 of the glass door 18, and the front and rear of the drawing along the frame support member 20. Frame main bodies 21 and 21 extending in the direction, and upper surface temporal joints 22 and 22 arranged on the upper surface of the frame main body 21.
And a pair of gypsum boards 23, 23 each having a surface covered with a cloth finish as an interior wall finishing material.

On the upper end surface of the load bearing wall 13, a living room unit floor structure 24a as an upper floor structure and a roof unit floor structure 24b are placed.

Of these, the living room unit floor structure 24a
Is a second floor plate 26 whose surface is finished by a carpet 25, and a plurality of lower surface side joists 27 which are arranged on the lower surface side of the second floor plate 26 and support the second floor plate 26 from below.
... and a lower surface temporal joint 28 arranged along the four sides of the living room unit floor structure 24a on the lower surface side of the lower surface side joist 27, and arranged on the lower surface side of the lower surface temporal joint 28, A field edge 30 that suspends and supports the first floor ceiling board 29 ...
It is mainly composed of an outer plate 31 stretched around the second floor portion.

Further, the roof unit floor structure 24b.
Is a lower surface side joist 32 which has four sides and is arranged in parallel to generally form a structure, and the lower surface side joist 32 is provided on the lower surface side along the four sides of the roof unit floor structure 24b. Is arranged on the lower surface temporal joint 28, a field rim receiver 30a arranged on the lower surface temporal joint 28, and a lower surface side of the field rim receiver 30a. It is mainly configured by a field edge 30 ...

The upper surfaces of the upper temporal joints 22 and 22 which are the upper end surfaces of the load bearing walls 13 of the lower floor and the lower temporal joints 28 and 2 which are the lower surfaces of the upper floor structure 24a and 24b.
A sheet of anti-vibration sheet 33 as an anti-vibration material that absorbs the vibration of the upper floor structure 24 is interposed between the sheet 8 and the sheet 8. The vibration-proof sheet 33 is mainly composed of a rubber sheet having excellent vibration absorption and sound absorption properties.

Next, the operation of the first embodiment will be described.

In the first embodiment, the upper floor structure 24
An anti-vibration sheet 33 for absorbing the vibrations of a and 24b has an upper surface temporal joint 22, which is an upper end surface of the load bearing wall 13 on the lower floor.
Since it is interposed between the upper surface of 22 and the lower surface temporal joints 28, 28 which are the lower surfaces of the upper floor structure 24a, 24b, it is generated in the second floor 26 or the like of the upper floor structure 24a. The vibrations are absorbed by the anti-vibration sheet 33 and are not transmitted to the bearing wall 13 on the lower floor.

Therefore, the propagation of vibration to the bearing wall 13 on the lower floor can be prevented, and the influence of the vibration of the second floor plate 26 of the upper floor structure 24a on the lower floor can be reduced.

Further, in the first embodiment, the one vibration-proof sheet 33 includes the upper surfaces of the upper temporal joints 22 and 22 which are the upper end surfaces of the load bearing walls 13 of the lower floor and the upper floor structure. Body 2
Since it is interposed between the lower surface temporal joints 28, 28 which are the lower surfaces of 4a, 24b, it is provided outside the second floor joists 27, 27 and the lower surface temporal joints 28, 28 as shown by the arrow in FIG. Sound and the like transmitted through the space between the outer plates 31, 31 also come into contact with the anti-vibration sheet 33 and are absorbed. Therefore, the propagation of sound to the space between the frame main bodies 21 and 21 on the lower floor is reduced, and the influence on the lower floor can be further reduced.

In particular, for example, even in the bearing wall 13 having openings such as the passage space 17 as shown in the first embodiment,
The vibration of the upper floor 1 from the upper frame portion 14 will not be transmitted to the lower floor, and a building with further improved quietness can be provided.

Further, for example, if a sound absorbing material or the like is supported by the vibration isolating sheet 33, the space between the second floor joists 27, 27 or the space between the lower surface temporal joints 28, 28, which has been difficult to arrange in the past, is provided. A sound absorbing material or the like can be arranged in the portion.

FIGS. 3 and 4 show a second embodiment of the present invention. The same or equivalent parts as in the first embodiment will be described with the same reference numerals.

In the anti-vibration floor structure of the second embodiment, the upper surface temporal joints 22 and 2 which are the upper end surfaces of the load bearing walls 13 on the lower floor.
Between the upper surface of 2 and the lower surface temporal joints 28, 28 which are the lower surfaces of the upper floor structure 24a, 24a, a vibration-proof material that absorbs the vibration of the upper floor structure 24 is used. Swing member 3
4 is interposed.

As shown in FIG. 4, the anti-vibration member 34 is made of a rubber sheet having excellent vibration absorption and sound absorption properties, and is provided between the upper surfaces of the upper temporal joints 22 and 22 and the lower temporal joints 28 and 28. The horizontal sheet portions 35, 35 interposed respectively, and the sound absorbing material portion 36 which is sandwiched and supported integrally at a substantially central position of the horizontal sheet portions 35, 35 and arranged substantially orthogonal to the horizontal sheet portion 35. It is mainly composed of and.

Of these, on the upper surface side of the horizontal seat portion 35, there are formed a plurality of mountain portions 35a ... Which support the loads of the upper floor structure 24a, 24a substantially evenly.

Next, the operation of the second embodiment will be described.

In the second embodiment, as shown in FIG. 3, the horizontal sheet portions 35, 35 of the vibration isolator 34 are connected to the upper temporal joints 22, 22 which are the upper end surfaces of the bearing walls 13 on the lower floor. The sound absorbing member 3 is interposed between the upper surface and the lower surface temporal joints 28, 28 which are the lower surfaces of the upper floor structures 24a, 24b, and the horizontal sheet portions 35, 35.
6 can be supported substantially orthogonally. Therefore, the horizontal sheet portions 35 and 35 are supported in the spaces between the outer plates 31 and 31 of the bottom side joists 27 and 27, and between the upper side temporal joints 22 and 22 of the first floor and the frame main bodies 21 and 21. The sound absorbing material portion 36 can be positioned.

Therefore, the sound transmitted through the space between the outer plates 31, 31 as indicated by the arrow in FIG. 3 is also absorbed by coming into contact with the sound absorbing material portion 36. Therefore, the propagation of sound to the space between the frame main bodies 21 and 21 on the lower floor is reduced, and the influence on the lower floor can be further reduced.

Further, by supporting the sound absorbing material portion 36 and the like by the horizontal sheet portion 35 of the vibration isolating member 34 in this manner, the bottom side joists 27, which have been difficult to dispose due to a drop due to their own weight, etc.
A sound absorbing material or the like can be arranged in a space portion such as between 27 and the upper temporal joint 22, 22. Therefore, it is not necessary to separately prepare other supporting members for supporting the sound absorbing material,
It is possible to suppress an increase in the number of parts.

The other structure and operation are substantially the same as those of the first embodiment, and the description thereof will be omitted.

FIG. 5 shows a third embodiment of the present invention. The same or equivalent parts as in the first embodiment will be described with the same reference numerals.

The anti-vibration floor structure of the third embodiment has the above-mentioned living room unit floor structure 24a as the upper floor structure.
The structure in a portion where the lower house unit floor structure 24c is disposed adjacent to the structure is described.

In the anti-vibration floor structure of the third embodiment, by placing the living room unit floor structure 24a and the shed unit floor structure 24c, the load bearing wall of the lower floor, which is supported from below, is supported. 37 is two gypsum boards 23, 23 having a surface covered with a cloth finish as an interior wall finishing material,
The gypsum boards 23, 23 are composed of an upper surface temporal joint 38 forming a frame body and a heat insulating material 39 interposed between the two gypsum boards 23, 23.

A peripheral edge 40 is provided on the ceiling plate 29 on the first floor.

The upper surface of the upper temporal joint 38, which is the upper end surface of the load bearing wall 37, and the living room unit floor structure 2
An anti-vibration sheet 41 as an anti-vibration material for absorbing the vibration of the upper floor structure 24a, 25c is interposed between the lower surface temporal joint 28 which is the lower surface of 4a. The vibration-proof sheet 41 is mainly composed of a rubber sheet excellent in vibration absorption and sound absorption.

The other structure and operation are substantially the same as those of the first embodiment, and the description thereof will be omitted.

Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific structure is not limited to this embodiment, and the present invention can be applied even if there is a design change or the like within a range not departing from the gist of the present invention. include.

For example, in each of the above-mentioned embodiments, as the vibration-proof member, the vibration-proof sheet 33 made of a rubber sheet, the vibration-proof member 34,
Although the vibration-proof sheets 41 are used, the invention is not limited to this. For example, a synthetic resin sheet, a vibration-damping steel plate, a sponge cushion sheet, a gel-like aqueous solution-containing vibration-damping material, or the like absorbs vibration of the upper floor. As a matter of course, any vibration-proof material may be used.

[0051]

As described above, according to the first aspect of the present invention, the vibration-damping material that absorbs the vibration of the upper floor is provided on the upper surface of the lower bearing wall and the upper surface of the lower bearing wall. Since it is interposed between the lower surface of the floor structure, the vibration generated in the upper floor is absorbed by the vibration-proof material and is not transmitted to the lower-bearing wall.

Therefore, the propagation of vibration to the lower floor bearing wall is prevented, and the influence of the vibration of the upper floor on the lower floor can be reduced.

Further, for example, if a sound absorbing material or the like is supported by the vibration damping material, it is possible to dispose the sound absorbing material or the like in a space portion such as between joists or head joints, which has been difficult to arrange in the past. I can.

According to the second aspect of the present invention, even if the building is a unit building and the lower floor bearing wall is structurally necessary, the propagation of vibration to the lower bearing wall is prevented. , It is possible to reduce the influence of the vibration of the upper floor on the lower floor.

Further, according to the third aspect of the invention, since the sound absorbing material portion is supported by the horizontal sheet portion made of the vibration damping material, the sound absorbing material is substantially orthogonal to the horizontal sheet portion. It can also be supported. Therefore, it is possible to arrange the sound absorbing material in a space portion such as between the joists or between the head joints, which is difficult to arrange in the related art, which is a practically useful effect.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing a vibration-isolating floor structure according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the vibration-isolated floor structure of the first embodiment and illustrating the overall structure.

FIG. 3 is a sectional view of an essential part showing a vibration-isolating floor structure according to a second embodiment of the present invention.

FIG. 4 is a perspective view showing a vibration damping member used in the vibration damping floor structure of the second embodiment.

FIG. 5 is a sectional view of an essential part showing a vibration-isolating floor structure according to a third embodiment of the present invention.

FIG. 6 is a sectional view of an essential part showing a conventional vibration-isolated floor structure.

FIG. 7 is a perspective view of an essential part showing a conventional vibration-isolated floor structure.

[Explanation of symbols]

 13, 37 Bearing wall (lower floor bearing wall) 14 Upper frame frame part 22, 38 Top temporal joint upper floor structure 24a Living room unit floor structure 24b Roof unit floor structure 24c Lower unit floor structure Body 28 Lower surface temporal joint Vibration-proof material 33,41 Vibration-proof sheet 34 Vibration-proof member 35 Horizontal sheet section 36 Sound-absorption material section

Claims (3)

[Claims] 1. An anti-vibration floor structure in which an upper floor structure is placed on an upper end surface of a lower floor bearing wall of a building and the upper floor is supported by the lower bearing wall. A vibration-isolating floor structure comprising a vibration-damping material for absorbing vibration of an upper floor between an upper end surface of a load-bearing wall and a lower surface of an upper floor structure. 2. The anti-vibration floor structure according to claim 1, wherein the building is a unit building. 3. A horizontal sheet portion interposed between an upper end surface of the lower floor load-bearing wall and a lower surface of an upper floor portion structural body, and the vibration damping material is integrally formed at a substantially central position of the horizontal sheet portion. The vibration-isolating floor structure according to claim 1 or 2, further comprising: a sound-absorbing material portion that is sandwiched between and supported by.