JP5088182B2 - Building with sound insulation - Google Patents

Description

  The present invention relates to a building having a sound insulating material.

  Conventionally, in a building, a floor slab made of reinforced concrete, an upper-floor residential space provided on the floor slab, a floor plate supported by the floor slab in the upper-floor residential space via a support, Some include a lower-floor residential space provided under the floor slab.

  When a child jumps or runs around on the floor board, an impact is applied to the floor board and a floor impact sound may be generated. At this time, the floor plate vibrates due to the impact. The vibration is transmitted to the floor slab through an air layer between the floor board and the floor slab, and is transmitted to the lower-floor residential space through the floor slab. Thereby, the floor impact sound propagates to the lower floor residential space. At this time, the air layer resonates due to the vibration, which may increase the vibration transmitted to the floor slab. When the vibration transmitted to the floor slab increases, there arises a problem that the floor impact sound propagating to the lower-floor residential space increases.

Some of the buildings include a plurality of blocks that are disposed adjacent to each other on the floor slab between the floor slab and the floor slab (see Patent Document 1). The block exists over the entire surface of the floor slab, and two adjacent blocks have different heights. This makes the thickness of the air layer non-uniform so that the natural frequency of the air layer does not match the frequency of the vibration. For this reason, the vibration transmitted to the floor slab due to resonance of the air layer does not increase, and it is possible to prevent the floor impact sound propagating to the lower floor residential space from increasing.
JP-A-2005-90218

  The block can prevent the vibration of the air layer from increasing and prevent the vibration transmitted to the floor slab from increasing, but cannot reduce the vibration transmitted to the floor slab. Therefore, if another upper-floor residential space is provided on the floor slab adjacent to the upper-floor residential space, vibration transmitted to the floor slab is reduced without reducing the floor slab. It is transmitted to the other upper-floor residential space through the above. Thereby, the floor impact sound propagates to the other upper-floor residential space and gives an uncomfortable feeling to a person in the other upper-floor residential space.

  An object of the present invention is to prevent a floor impact sound generated in one of the two residential spaces provided adjacent to each other on the floor slab from propagating to the other residential space.

  In the present invention, a sound insulating material having a belt-like planar shape extending in the extending direction of the boundary line of the residential space is attached to the floor slab at the boundary part of the residential space. Thereby, when a floor impact sound is generated in one residential space, the vibration is transmitted to the floor slab from the floor board in the one residential space before the vibration is transmitted to the other residential space through the floor slab. It is transmitted from the slab to the sound insulating material, and the energy of the vibration is consumed by the vibration of the sound insulating material. Thereby, the vibration transmitted to the floor slab is prevented from being transmitted to the other residential space, and the floor impact sound is prevented from propagating to the other residential space.

  A building according to the present invention includes a floor slab made of reinforced concrete, two residential spaces provided adjacent to each other on the floor slab, and a floorboard supported by the floor slab in each residential space via a support. And a sound insulating material that is detachably attached to the floor slab at a boundary portion of the living space between the floor slab and the floor board, and the sound insulating material is in the extension direction of the boundary line of the residential space. It is made of concrete that has a strip-like planar shape.

  When an impact is applied to the floor board in one residential space and a floor impact sound is generated, vibration is generated in the floor board due to the impact. The vibration is transmitted to the floor slab through an air layer between the floor board and the floor slab and the support. Since the sound insulating material extending in the extending direction of the boundary line is attached to the floor slab at the boundary portion of the residential space, the vibration transmitted to the floor slab is transmitted to the other residential space via the floor slab. The vibration is transmitted from the floor slab to the sound insulating material, and the energy of the vibration is consumed by the vibration of the sound insulating material. Thereby, it is possible to prevent the vibration transmitted to the floor slab from being transmitted to the other residential space, and it is possible to prevent the floor impact sound from propagating to the other residential space.

  By the way, in the future, the floor plan in the building may be changed by changing the position of the boundary line. Since the sound insulating material can be removed from the floor slab, the sound insulating material can be removed from the floor slab and moved according to the position of the boundary line when the floor plan is changed. For this reason, it is not necessary to prepare a new sound insulating material, and the floor plan can be changed efficiently without the need to prepare a new sound insulating material.

  The sound insulating material may be composed of a plurality of blocks arranged adjacent to each other on the floor slab.

  In a building having a floor slab made of reinforced concrete according to the present invention and two residential spaces provided adjacent to each other on the floor slab, floor impact sound generated in one residential space is transferred to the other residential space. In the sound insulation method for preventing propagation, in each residential space in the boundary portion of the residential space, the sound insulating material made of concrete having a belt-like planar shape is extended in the extending direction of the boundary line of the residential space. Removably attaching to the floor slab as described above, and supporting the floor board in each residential space via the support so that the floor board is positioned above the sound insulating material.

  According to the present invention, in a building having a floor slab and two residential spaces provided adjacent to each other on the floor slab, a boundary line of the residential space is formed on the floor slab at a boundary portion of the residential space. A sound insulating material having a belt-like planar shape extending in the extending direction is attached. For this reason, when a floor impact sound is generated in one residential space, the vibration transmitted from the floor board in the one residential space to the floor slab is transmitted to the other residential space via the floor slab before the vibration is transmitted to the floor. The vibration is transmitted from the slab to the sound insulating material, and the energy of the vibration is consumed by the vibration of the sound insulating material. Thereby, it is possible to prevent the vibration transmitted to the floor slab from being transmitted to the other residential space, and it is possible to prevent the floor impact sound from propagating to the other residential space.

  As shown in FIG. 1, there is a building 14 having a floor slab 10 made of reinforced concrete and two residential spaces 12 provided adjacent to each other on the floor slab. The dwelling space 12 may be two dwelling units adjacent to each other, or may be two adjoining rooms in one dwelling unit.

  The building 14 includes a wall 16 separating the residential spaces 12, a floor plate 20 supported by the floor slab 10 via the support 18 in each residential space 12, and a sound insulating material 22 positioned between the floor slab 10 and the floor plate 20. And have. The wall 16 is provided on the floor slab 10 and is located on the boundary line of the dwelling space 12 when viewed in plan. The sound insulating material 22 is made of concrete having a belt-like planar shape, and is detachably attached to the floor slab 10 at the boundary portion of the residential space 12. The sound insulating material 22 extends in the extending direction of the boundary line, that is, extends in the width direction of the wall 16 (depth direction in FIG. 1).

  The sound insulating material 22 has, for example, a height corresponding to about 1/6 times to about 1 time the thickness of the floor slab 10 and a width corresponding to about 1/2 times to about 1 time the thickness of the floor slab 10. Have If the thickness of the floor slab 10 is about 30 cm, the height of the sound insulating material 22 is about 5 cm to about 30 cm, and the width of the sound insulating material 22 is about 15 cm to about 30 cm. The sound insulating material 22 has a length corresponding to the length of the boundary line, that is, the width of the wall 16.

  By the way, in one residential space 12, a child jumps or runs around on the floor board 20, and an impact is applied to the floor board 20, and a floor impact sound may be generated. At this time, the floor plate 20 is vibrated by the impact. The vibration is transmitted to the floor slab 10 through the air layer 24 and the support 18 positioned between the floor plate 20 and the floor slab 10. Since the sound insulating material 22 extending in the extending direction of the boundary line is attached to the floor slab 10 in the boundary portion of the residential space 12, vibration transmitted to the floor slab 10 is transmitted to the other residential space 12 through the floor slab. The vibration is transmitted from the floor slab 10 to the sound insulating material 22 before (in FIG. 1, the vibration transmission path when the floor impact sound is generated in the residential space 12 located on the left side is indicated by an arrow 26). Thereby, the energy of the vibration is consumed by the vibration of the sound insulating material 22. For this reason, the vibration transmitted to the floor slab 10 can be prevented from being transmitted to the other residential space 12, and the floor impact sound can be prevented from propagating to the other residential space 12.

  The sound insulating material 22 is attached to the floor slab 10 in such a manner that a vertically extending nut 28 that is exposed inside the floor slab 10 and exposed on the upper surface of the floor slab is screwed to the nut so that the sound insulating material 22 is moved in the vertical direction. And a bolt 30 penetrating therethrough. The sound insulating material 22 can be removed from the floor slab 10 by releasing the screwing of the bolt 30 to the nut 28.

  When both the housing spaces 12 are two rooms adjacent to each other in one dwelling unit, the floor plan in the dwelling unit may be changed in the future by changing the position of the wall 16. Since the sound insulating material 22 can be detached from the floor slab 10, the sound insulating material 22 can be removed from the floor slab 10 and moved according to the position of the wall 16 when the floor plan is changed. For this reason, it is not necessary to prepare a new sound insulating material, and the floor plan can be changed efficiently without the need to prepare a new sound insulating material.

  The sound insulating material 22 is attached to the floor slab 10 in the example shown in FIG. 1 in which the nut 28 inside the floor slab 10 and the bolt 30 screwed into the nut and penetrating the sound insulating material 22 are used. Instead, by means of an anchor bolt (not shown) penetrating the sound insulating material 22 in the vertical direction and having a lower end fixed to the floor slab 10 and a nut (not shown) screwed to the upper end of the anchor bolt. May have been made. In this case, the sound insulating material 22 can be removed from the floor slab 10 by releasing the screwing of the nut to the anchor bolt.

  As shown in FIG. 2, the sound insulating material 22 includes a plurality of blocks 32 arranged adjacent to each other on the floor slab 10. In order to facilitate the arrangement of the blocks 32 on the floor slab 10, it is desirable that the weight of each block 32 be a weight that allows the blocks to be carried. The sound insulating material 22 may be composed of one block (not shown) instead of the example shown in FIG.

  The planar shape of the wall 16 is a straight line in the example shown in FIG. 2, but other shapes may be used instead. In the example shown in FIG. 3, the wall 16 includes a first portion 16a, a second portion 16b connected to the first portion and perpendicular to the first portion 16a, and a second portion connected to the second portion. The sound insulating material 22 has a planar shape corresponding to the planar shape of the wall 16, and includes a third portion 16 c perpendicular to the portion 16 b. Also in this case, the sound insulating material 22 extends in the width direction of the wall 16 and has a length corresponding to the width of the wall.

  A sound insulation method for preventing floor impact sound generated in one residential space 12 from propagating to the other residential space 12 is made of concrete having a strip-like planar shape in each residential space 12 at the boundary portion of the residential space 12. The sound insulating material 22 is detachably attached to the floor slab 10 so that the sound insulating material extends in the extending direction of the boundary line. Thereafter, the floorboard 20 is supported on the floor slab 10 via the support 18 so that the floorboard is positioned above the sound insulating material 22 in each residential space 12.

  In the above example, the wall 16 is provided on the floor slab 10, and the floorboard 20 exists on both sides of the wall 16. Instead, in the floorboard 20 in one residential space 12 and in the other residential space 12. The floor board 20 may be continuous, and the wall 16 may be provided on the floor board 20.

The longitudinal cross-sectional view of the building which concerns on this invention. FIG. 3 is a horizontal sectional view of the building along line 2 in FIG. 1. The horizontal sectional view of the building concerning other examples of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Floor slab 12 Residential space 14 Building 16 Wall 18 Support tool 20 Floor board 22 Sound insulation material 32 blocks

Claims (3)

Floor slabs made of reinforced concrete;
Two residential spaces provided adjacent to each other on the floor slab;
Floor boards supported by the floor slabs via supports in each residential space;
A sound insulating material that is detachably attached to the floor slab at a boundary portion of the living space between the floor slab and the floor board,
The sound insulating material is a building made of concrete having a belt-like planar shape extending in the extending direction of the boundary line of the residential space.   The building according to claim 1, wherein the sound insulating material includes a plurality of blocks arranged adjacent to each other on the floor slab. In a building having a floor slab made of reinforced concrete and two residential spaces provided adjacent to each other on the floor slab, floor impact sound generated in one residential space is prevented from propagating to the other residential space A sound insulation method,
In each residential space at the boundary portion of the residential space, a sound insulating material made of concrete having a belt-like planar shape is detachably attached to the floor slab so that the sound insulating material extends in the extending direction of the boundary line of the residential space. about,
A sound insulation method, comprising: supporting a floor board in each residential space on the floor slab via a support so that the floor board is positioned above the sound insulation material.

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