JP6599277B2 - Floor structure repair method - Google Patents

Description

  The present invention relates to a method for repairing a floor structure, and more particularly to a method for partially repairing a floor structure near a wall.

On the center side of the room, anti-vibration support legs with anti-vibration rubber are placed under the floor plate at predetermined intervals so as to support the floor plate. There is known a floor structure called a dry double floor configured to support a floor board portion by a floor support portion having a joist and a bundle that supports the joist (for example, see Patent Document 1).
However, in the floor structure in which the floor plate portion of the wall portion is supported by the floor support portion of the non-vibration-proof structure such as the floor support portion configured by the joists and bundles as described above, when the floor plate portion is subjected to an impact, the vibration is generated. However, since it propagates downstairs through joists, bundles and floor slabs, there is a problem in soundproof performance.
Therefore, it is known that a floor structure with excellent soundproofing performance can be obtained by using a floor structure having a structure in which the floor plate portion at the wall is supported by a joist with vibration proof rubber (see, for example, Patent Document 1). .

JP 2000-104393 A

Conventionally, a floor structure having a structure in which a floor board part at the wall is supported by a floor support part of a non-vibration-proof structure such as a floor support part constituted by a thick joist and a bundle, and the floor board part at the wall is provided with an anti-vibration rubber. When changing to a floor structure that is supported by a floor support part of an anti-vibration structure such as a floor support part constituted by a device, after removing all the floor plate parts of the floor structure, The floor support part of the vibration proof structure was changed to a floor support part of the vibration proof structure composed of joists with vibration proof rubber, and then a new floor board part was attached to the floor support part.
However, in order to change the floor structure as described above, it is necessary to remove all floor plate portions of the floor structure, and in order to remove all floor plate portions of the floor structure, it is installed on the floor of the room. There was a problem in terms of the cost and time required for construction, such as the need to move heavy objects such as furniture to another room or place.
The present invention relates to a floor structure refurbishing method in which a floor structure having a structure in which a floor plate portion near a wall is supported by a floor support portion having a non-vibration-proof structure can be easily and inexpensively repaired to a floor structure having excellent soundproof performance. Is to provide.

The floor structure refurbishing method according to the present invention includes a first step of removing a floor plate portion of a wall-side portion of the floor structure, and a non-vibration-proof floor support portion supporting the floor plate portion of the wall-side portion of the vibration-proof structure. A second step of changing to a floor support portion and a third step of forming a new floor plate portion of the wall edge portion supported by the floor support portion of the vibration-proof structure were provided.
In addition, the floor support part of the anti-vibration structure includes a vibration isolation joist that supports the end of the wall side in the new floor board part of the wall part, and the end part of the new floor board part of the wall part of which the end faces face each other. It was set as the structure provided with the anti-vibration support leg which supports the edge part of this floor board part.
Further, the vibration-proof joist is a joist that supports the wall-side end of the new floor plate portion at the wall portion, a bundle that supports the joist, and a rubber provided between the bundle and the floor slab. It was set as the structure provided with.
In addition, the floor support part of the anti-vibration structure includes a vibration isolation joist that supports the end of the wall side in the new floor board part of the wall part, and the end of the new floor board part of the wall part of which the end faces face each other. It is a structure provided with the vibration-proof support leg which supports the edge part of a floor-plate part, and the remaining non-vibration-proof which was supporting the floor-plate part of the said vibration-proof structure and the floor-plate part of a new floor-plate part and a wall edge part The structure was configured to cut the edge with the floor support part of the structure.
In addition, the vibration-proof joist is provided on the floor slab by being provided at the joist part that supports the wall-side end of the new floor plate part at the wall part, the support that supports the joist part, and the lower end of the support pillar. It was set as the structure provided with the rubber | gum installed.
According to the floor structure renovation method according to the present invention as described above, a floor structure having a structure in which a floor plate portion near a wall is supported by a floor support portion having a non-vibration-proof structure is inexpensive and easily excellent in soundproofing performance. The floor structure can be renovated.

The figure which shows the process sequence of the repair method of a floor structure (embodiment 1). The figure which shows an example of a joist in the case of vibration proof structure (embodiment 2 and 3). The figure which shows the process sequence of the repair method of a floor structure (embodiment 2). The figure which shows the process sequence of the repair method of a floor structure (embodiment 3).

Embodiment 1
As shown in FIG. 1, the floor structure renovation method according to the first embodiment includes a first step of removing the floor plate portion 2 at the wall portion of the floor structure B, and the non-prevention that supported the floor plate portion 2 at the wall portion. A second step of changing the floor support 5 of the vibration structure to a floor support 5A of the vibration isolation structure, and a third step of forming a new floor plate 2A at the wall edge portion supported by the floor support 5A of the vibration isolation structure The floor support 5A having a vibration-proof structure includes a vibration-proof joist 3A that supports the end portion on the wall 1 side of the new floor plate portion 2A at the wall-side portion, and a new wall-side portion whose end faces face each other. It is set as the structure provided with the anti-vibration support leg 9 which supports the edge part of the floor board part 2A, and the edge part of the remaining floor board part 2, and the vibration-proof joist 3A is the wall 1 side of the new floor board part 2A of a wall edge part. The joist 3 when supporting the end of the tie, the bundle 4A that supports the joist 3 and the bundle 4A and the floor slab And a configuration in which a rubber 8 provided between the.

As shown in FIG. 1 (a), the floor structure B includes a floor joist 3 and a floor joist when the floor board portion 2 near the wall 1 such as a body wall and a partition wall of the room is arranged along the wall 1. 3 is supported by a floor support 5 having a non-vibration-proof structure having a bundle 4 supporting 3, and at the center of the room, vibration-proof support legs with anti-vibration rubber are provided below the floor plate 2 at predetermined intervals. 9 is a floor structure called a dry double floor configured to support the floor plate portion 2 by arranging 9.
In the floor structure B, the bundles 4 are arranged at a predetermined interval, and are fixed to the slab surface of the floor slab 6 with, for example, a urethane adhesive. The joist 3 is fixed to the bundle 4 and supported by the bundle 4, and the floor plate portion 2 is attached to the upper surface of the jojo 3.
For example, the floor plate portion 2 includes a base plate portion 21 such as a particle board and a floor finishing portion 22 such as a flooring.

  In the first embodiment, first, the baseboard 7 attached to the wall 1 is removed, and the floor plate portion 2 (the base plate portion 21 and the floor finishing portion 22) is placed at a predetermined position away from the wall 1 by a predetermined distance H. Cut and remove. For example, the floor board portion 2 is cut at a predetermined position away from the wall 1 by 200 mm to 300 mm, and the floor board portion 2 at the cut wall is removed. Further, the joist 3 and the bundle 4 are removed (see FIGS. 1A and 1B).

And the rubber 8 is fixed to the slab surface of the floor slab 6 in which the bundle 4 is arranged. Then, the lower portion of the bundle 4 is cut by a length corresponding to the thickness of the rubber 8 to shorten the height of the bundle 4, and the bundle 4A having the shortened height is fixed to the upper surface of the rubber 8. After arranging a plurality of bundles 4A on the slab surface of the floor slab 6 at a predetermined interval so that rubber (anti-vibration rubber) 8 is interposed between the bundle 4A and the floor slab 6, the plurality of bundles 4A. The anti-vibration joist with anti-vibration rubber for supporting the end of the new floor board 2A at the wall side is arranged by placing the joist 3 on the wall and fixing the joist 3 to the bundle 4A. 3A is formed (see FIG. 1C). The bundle 4 </ b> A and the joist 3 of the joist 3 </ b> A are arranged away from the wall 1.
In addition, the said bundle 4A and the Tokita 3 may reuse an old thing, and may use a new thing.

  If the rubber | gum 8 uses the plate-shaped rubber | gum in which the surface installed in the slab surface of the floor slab 6 was formed in the uneven | corrugated surface, it can absorb the unevenness of the floor slab 6, and is preferable.

Next, the anti-vibration support leg 9 is newly arranged below the position where the floor plate portion 2 (the base plate portion 21 and the floor finishing portion 22) is cut (see FIG. 1C).
The anti-vibration support leg 9 includes an anti-vibration rubber 9a installed on the floor slab 6, and a support 9b made of, for example, metal or resin, whose lower part is attached to the anti-vibration rubber 9a and supported by the anti-vibration rubber 9a. And a pedestal 9c provided at the upper end of the column 9b (see FIG. 1C). The outer peripheral surface of the upper portion of the column 9b is formed in a male screw portion not shown.
The pedestal 9c is formed of, for example, a particle board or a structural plywood. The pedestal 9c is provided with a through hole (not shown) that penetrates the upper and lower surfaces of the pedestal 9c. A metal cylinder 9d that penetrates the through hole up and down is fixed in the through hole. The inner peripheral surface is formed in a female screw portion (not shown).
In other words, the anti-vibration support leg 9 is formed by mounting the male screw of the male screw portion formed on the outer peripheral surface of the upper portion of the column 9b and the female screw of the female screw portion formed on the inner peripheral surface of the metal tube 9d. 9c is configured to be movable up and down with respect to the support column 9b, and is configured to be able to adjust the level (height) of the base 9c.

And the baseplate part 21A of the wall edge part which replaces the baseplate part 21 of the removed wall edge part is newly manufactured, and the new baseplate part 21A of the wall edge part is below the position where the floor board part 2 is cut. Arranged so as to straddle over the upper surface of the base 9c of the anti-vibration support leg 9 and the upper surface of the joist 3 in the case of the anti-vibration 3A, the new base plate portion 21A of the wall-side portion is anti-vibrated. By attaching to the upper surface of the base 9c of the support leg 9 and the upper surface of the edge joist 3, the base plate part 21A of the wall edge part is newly provided (see FIG. 1C).
In addition, a gap of about several millimeters is provided between the wall 1 on the wall side of the new base plate 21A (one end surface) of the new base plate 21A at the edge of the wall and the remaining base plate portion left after cutting. A gap (joint) of about several millimeters to several tens of millimeters is provided between the cut end face 21S of 21 and the end face 21AT (the other end face) of the new base plate portion 21A facing the cut end face 21S (FIG. 1). (See (c)).

  Then, a new floor finishing portion 22A of the wall edge portion is provided on the base plate portion 21A of the newly installed wall edge portion to form a new floor plate portion 2A of the wall edge portion, whereby a new floor plate portion 2A of the wall edge portion is formed. Anti-vibration joists 3A for supporting the end portion on the wall 1 side, and anti-vibration support legs 9 for supporting the end portion of the new floor plate portion 2A at the end portion of the wall facing each other and the end portion of the remaining floor plate portion 2 The floor structure A having a structure in which a new floor board portion 2A at the edge of the wall is supported by the floor support portion 5A having a vibration-proof structure including That is, the floor structure B that has supported the floor plate portion 2 at the wall portion by the floor support portion 5 of the non-vibration-proof structure, and the new floor plate portion 2A at the wall edge portion is supported by the floor support portion 5A of the vibration-proof structure. The floor structure is modified to A (see FIG. 1D). Further, a baseboard 7A is newly installed (see FIG. 1 (d)).

Note that a gap of about several millimeters is provided between the wall-side end surface 22AS of the new floor finishing portion 22A at the wall portion and the wall 1, and the cut end surface 22S of the remaining floor finishing portion 22 left after cutting. And a new floor finishing portion 22A at the edge of the wall are provided so that the end surface 22AT of the new floor finishing portion 22A facing the cut end surface 22S is in contact with each other.
In addition, a gap of about several millimeters is provided between the newly established baseboard 7A and the new floorboard portion 2A at the edge of the wall so that the baseboard 7A and the new floorboard 2A at the edge of the wall are not in contact with each other. (See FIG. 1 (d)).
According to the above, even if the new floor plate portion 2A at the wall edge portion supported by the floor support portion 5A of the vibration isolation structure composed of the joist 3A and the vibration isolation support legs 9 moves up and down, the floor plate concerned Since the part 2A is configured not to contact the wall 1 and the baseboard 7A, the generation of contact sound between the floor board part 2A and the wall 1 or baseboard 7A is prevented.

According to the floor structure A thus modified, since the rubber 8 is provided between the bundle 4A supporting the joist 3 and the floor slab 6, the floor structure A is excellent in soundproofing performance.
That is, according to the floor structure renovation method according to the first embodiment, the floor plate portion 2, the joist 3 and the bundle 4 at the edge of the wall of the floor structure B are removed, and the bundle 4A and the floor in which the length of the bundle 4 is adjusted. Since it suffices to provide rubber 8 with the slab 6, in the room to be refurbished, a heavy object such as furniture installed near the wall of the room is moved to the center side of the room so that the renovation work can be performed. In order to reduce the material cost, a floor structure B having a structure in which the floor plate portion 2 at the wall portion is supported by the floor support portion 5 having a non-vibration-proof structure constituted by the joist 3 and the bundle 4 is provided. Thus, the floor structure A having excellent soundproof performance can be repaired inexpensively and easily.

Embodiment 2
In the floor structure renovation method according to the first embodiment, the anti-vibration joist 3 </ b> A includes the joist 3, the bundle 4 </ b> A that supports the joist 3, and the rubber provided between the bundle 4 and the floor slab 6. Although the example using the joist 3A of the structure provided with 8 is shown, instead of the joist 3A at the time of the anti-vibration, the wall 1 side of the new floor board part 2A at the wall edge part as shown in FIG. A vibration isolator having a structure including a joist 31 for supporting the end of the joist, a support 34 for supporting the joist 31, and a rubber 35 provided at the lower end of the support 34 and installed on the floor slab 6. Junkita 30 may be used.

As shown in FIG. 2, the vibration-proof joist 30 has a joist section 31 as a long support member having a predetermined length, and both ends of the joist section 31 are supported by support tools 32 and 32. Is.
The support 32 includes a nut portion 33 that extends between the upper and lower surfaces of the joist portion 31, a column 34 that is screwed into the nut portion 33 to move the nut portion 33 up and down, A rubber (anti-vibration rubber) 35 that absorbs vibration transmitted to the support column 34 by being fitted at the lower end side is provided.

  As shown in FIG. 3, the floor structure renovation method according to the second embodiment using the joist 30 at the time of vibration isolation includes a first step of removing the floor plate portion 2 at the wall portion of the floor structure B, and the floor plate portion at the wall portion. A second step of changing the non-vibration-proof floor support portion 5 supporting 2 to a floor-support portion 5B having a vibration-proof structure, and a new floor plate at a wall-side portion supported by the floor support portion 5B having a vibration-proof structure A floor support portion 5B having an anti-vibration structure is provided with a vibration isolating joist 30 for supporting an end portion on the wall 1 side of the new floor plate portion 2A at the wall portion, and the end surfaces. Are provided with an anti-vibration support leg 9 that supports an end of a new floor plate 2A facing each other and an end of the remaining floor plate 2 and the joist 30 is a new floor plate at the wall. The joist 31 when supporting the end of the wall 1 side of 2A, and the column 34 supporting the joist 31 And a structure in which a rubber 35 which is installed is provided at the lower end of the strut 34 on the floor slab 6.

That is, in the second embodiment, as in the first embodiment, first, the existing baseboard 7 attached to the wall 1 is removed, and at a predetermined position away from the wall 1 by a predetermined distance H, the floor board 2 The base plate part 21 and the floor finishing part 22 are cut and removed. Further, the joist 3 and the bundle 4 are removed (see FIGS. 3A and 3B).
Next, the anti-vibration support leg 9 is newly arranged below the position where the floor plate portion 2 (the base plate portion 21 and the floor finishing portion 22) is cut, and the anti-vibration joist 30 is placed on the floor slab 6 near the wall. It arrange | positions (refer FIG.3 (c)).
And the baseplate part 21A of the wall edge part which replaces the baseplate part 21 of the removed wall edge part is newly manufactured, and the new baseplate part 21A of the wall edge part is below the position where the floor board part 2 is cut. Arranged so as to straddle over the upper surface of the base 9c of the anti-vibration support leg 9 and the upper surface of the joist portion 31 of the joist 30 at the time of anti-vibration to prevent the new base plate portion 21A of the wall-side portion. By attaching to the upper surface of the base 9c of the vibration support leg 9 and the upper surface of the joisting portion 31, a base plate portion 21A at the wall-side portion is newly provided (see FIG. 3C).
Further, by providing a new floor finishing portion 22A of the wall edge portion on the base plate portion 21A of the newly installed wall edge portion to form a new floor plate portion 2A of the wall edge portion, in the new floor plate portion 2A of the wall edge portion. Anti-vibration joists 30 for supporting the end portion on the wall 1 side, and anti-vibration support legs 9 for supporting the end portion of the new floor plate portion 2A and the end portion of the remaining floor plate portion 2 at the end portion of the wall facing each other. To the floor structure A having a structure in which a new floor plate 2A at the edge of the wall is supported by a floor support 5B having a vibration-proof structure, and finally, a baseboard 7A is newly installed (see FIG. 3D). .
As in the first embodiment, a gap (joint) is provided between the cut end surface 21S of the remaining base plate portion 21 left after cutting and the end surface 21AT (the other end surface) of the new base plate portion 21A. The cut end surface 22S of the remaining floor finishing portion 22 left after cutting and the end surface 22AT of the new floor finishing portion 22A are brought into contact with each other, and the new floor board portion 2A, the baseboard 7A and the wall A gap is provided between the first and second members (see FIGS. 3C and 3D).

  According to the floor structure refurbishing method according to the second embodiment, the floor plate part 2, the joist 3 and the bundle 4 at the edge of the wall of the floor structure B are removed, and the newly installed anti-vibration joists 30 and the anti-vibration support legs 9 are provided. The floor support portion 5B of the anti-vibration structure that is configured as described above is configured to support the new floor plate portion 2A at the wall portion. Therefore, in a room to be repaired, a heavy object such as furniture installed near the wall of the room Non-vibration-proof structure in which the floorboard 2 at the wall is composed of the joist 3 and the bundle 4 so that it can be moved to the center side of the room and repair work can be performed and the material cost can be reduced. The floor structure B having the structure supported by the floor support portion 5 can be repaired at low cost and easily to the floor structure A having excellent soundproofing performance.

Embodiment 3
In the floor structure repair method according to the first embodiment, the bundle 4 supporting the joist 3 is changed to an anti-vibration structure. In the floor structure repair method according to the second embodiment, the joist 3 and the bundle 4 are combined. Although the example of changing to the joist 30 at the time of vibration isolation was shown, the floor plate portion 2 and the width near the wall are left as it is when the floor support portion 5 of the existing non-vibration-proof structure is configured. The wood 7 is removed, and a floor support portion 5B having a vibration-proof structure is newly provided, and a new floor board portion 2A at a wall edge is attached to the floor support portion 5B having a new vibration-proof structure. You may make it be the structure which cuts the edge of the part 2A and the floor support part 5 of the remaining non-vibration-proof structure.
That is, as shown in FIG. 4, the existing baseboard 7 attached to the wall 1 is removed, and at a predetermined position away from the wall 1 by a predetermined distance H, the floor plate portion 2 (the base plate portion 21 and the floor finish). The part 22) is cut and removed, but the non-vibration-proof floor support part 5 composed of the joists 3 and the bundles 4 is left as it is (see FIG. 4B). Next, the vibration isolation joist 30 that supports the end portion on the wall 1 side of the new floor plate portion 2A, the end portion of the new floor plate portion 2A that faces the end surfaces, and the end portion of the remaining floor plate portion 2 are supported. The floor support 5B having a vibration-proof structure including the vibration-proof support legs 9 is formed, and the floor support 5B of the vibration-proof structure, the new floor plate 2A at the wall and the floor plate 2 at the wall are supported. The remaining non-vibration-proof floor support 5 is modified so as to cut the edge (see FIGS. 4C and 4D).
As in the first embodiment, a gap (joint) is provided between the cut end surface 21S of the remaining base plate portion 21 left after cutting and the end surface 21AT (the other end surface) of the new base plate portion 21A. The cut end surface 22S of the remaining floor finishing portion 22 left after cutting and the end surface 22AT of the new floor finishing portion 22A are brought into contact with each other, and the new floor board portion 2A, the baseboard 7A and the wall A gap is provided between the first and second terminals (see FIGS. 4C and 4D).

  According to Embodiment 3, since the removal work which removes the floor support part 5 of the old non-vibration-proof structure which supported the floorboard part 2 of the wall part is not performed, the labor cost and period concerning the said removal work can be reduced. In addition, in the room to be refurbished, it becomes possible to perform renovation work by moving heavy objects such as furniture installed near the room wall to the center side of the room, and it is possible to reduce material costs As a result, the floor structure having excellent soundproof performance can be easily and inexpensively repaired.

1, 3, and 4, a housing wall is illustrated as the wall 1, but the present invention can be similarly applied even when the wall 1 is a partition wall.
Further, in the embodiment, the floor plate portion is exemplified by a floor plate portion configured by including a base plate portion by particle board and a floor finishing portion by flooring provided on the particle board. Even if the floorboard part is composed of a combination of particle board and other members, and the floor finish part is made of floor finishing material other than flooring or free ring (cork sheet, carpet, stone, tile, etc.) The floor structure repair method according to the present invention can be applied.
For example, the base plate portion is composed of a particle board and a reinforcing plate such as a plywood or a gypsum board with fibers provided on the particle board, or the base plate portion is a particle board and the particle board. The floor according to the present invention may be a floor plate portion constituted by a reinforcing plate such as a plywood or a gypsum board containing fibers and a floor heating device such as a floor heating sheet provided on the reinforcing plate. Structural repair methods can be applied.

1 Wall 2 Remaining floor plate part 2A New floor plate part near the wall 3 Edge joist,
3A anti-vibration joist, 4A bundle, 5 non-vibration-proof floor support,
5A, 5B Anti-vibration structure floor support, 6 floor slab, 8 rubber, 9 anti-vibration support legs,
21AT, 21S, 22AT, 22S end face, 30 anti-vibration joist, 31 joist,
34 struts, 35 rubber, A, B floor structure.

Claims (5)

A floor structure renovation method,
A first step of removing the floor plate portion of the wall portion of the floor structure;
A second step of changing the floor support part of the non-vibration-proof structure supporting the floor plate part of the wall-side part to the floor support part of the anti-vibration structure;
And a third step of forming a new floor plate portion of the wall-side portion supported by the floor support portion of the vibration-proof structure.   The floor support part of the anti-vibration structure consists of an anti-vibration joist that supports the end of the wall side in the new floor board part of the wall part, the end part of the new floor board part of the wall part of which the end faces face each other, and the remaining floor board The floor structure refurbishing method according to claim 1, wherein the floor structure is provided with an anti-vibration support leg that supports an end of the floor portion.   The anti-vibration joist is a joist for supporting the wall-side end of the new floor plate at the wall, a bundle for supporting the joist, and a rubber provided between the bundle and the floor slab. The floor structure refurbishing method according to claim 2, wherein the floor structure is repaired. The floor support part of the anti-vibration structure consists of an anti-vibration joist that supports the end of the wall side in the new floor board part of the wall part, and the end part of the new floor board part and the remaining floor board part of the wall part where the end faces face each other And an anti-vibration support leg that supports the end of the
The floor support part of the said vibration-proof structure and a new floor board part, and the structure which cut | disconnects the edge with the floor support part of the remaining non-vibration-proof structure which was supporting the floor board part of a wall edge part were characterized by the above-mentioned. Repair method for floor structure as described in 1.   The anti-vibration joist is installed on the floor slab provided at the joist part for supporting the wall-side end of the new floorboard part at the wall part, the post supporting the joist part, and the lower end of the post. The floor structure refurbishing method according to claim 2 or 4, characterized by comprising a rubber.

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