JP7269702B2 - floor structure - Google Patents

Description

The present invention relates to floor structures of buildings.

In apartment buildings with multiple floors, a floor slab is formed on each floor on a frame made of concrete, etc., and a floor structure consisting of large lumber and floorboards is installed on the floor slab. There is a problem that the noise is transmitted to the floor slabs and walls through the floor structure and propagates to the rooms below or adjacent rooms as vibration noise.
In Patent Document 1, both ends of the large-sized lumber are supported by the frame wall via elastic bodies, and a damping mechanism is installed between the middle part of each large-sized lumber and the floor slab to suppress the vertical vibration of the large-sized lumber. A floor structure comprising the apparatus is disclosed. According to this floor structure, since the large lumber is separated from the floor slab, the vibration generated in the floor structure is not transmitted to the floor slab, and the braking device suppresses the vertical vibration of the large lumber, Furthermore, by supporting the large tension members on the building wall via elastic bodies, it becomes possible to disperse and propagate the vibration generated in the floor structure to the building wall.
However, in the floor structure disclosed in Patent Document 1, since the large-barriers are supported by the frame walls at both ends, the large-barriers need a length from the frame wall of the room to the frame wall, As a result, unless the rigidity of the floorboards is high, the amount of sinking of the floorboards against the load applied to the floorboards becomes large, and as a result, the feeling of walking and the installation stability of furniture deteriorate. Also, if you try to give rigidity to the oikiki, the weight of the oikiki itself will increase, so the amount of sinking due to the weight of the oikiki will increase, and the weight load on the frame will increase, as a result. , there was a problem that the transportability and construction workability deteriorated.
In view of the above-mentioned problems with the conventional floor structure, the applicant has developed a structure that can ensure sufficient rigidity against the load applied to the floor plate without significantly increasing the rigidity of the slabs, and at the same time, prevents vibration transmission to the frame wall and floor slab. We have developed a floor structure that can reduce , and filed a patent application for it (Patent Document 2).

JP 2013-130044 A Patent No. 5043461

The floor structure described in Patent Literature 2 supports both ends of the lumber by using a lumber supporting member capable of cushioning and supporting the lumber from below on the floor slab, and has reinforcing support legs. Since the intermediate part of the large-barrier is cushioned and supported on the floor slab from below, it is possible to ensure sufficient rigidity against the load applied to the floor board without increasing the rigidity of the large-barrier extremely. As a result, it is possible to use a lightweight large-scale lumber, and it is possible to improve the transportability and construction workability.
However, as shown in FIG. 6, in the floor structure described in Patent Document 2, the large lumber support member includes one bolt portion 21 extending vertically upward from the pedestal 20 and an upper portion of the bolt portion 21. A receiver 22 configured to be able to be screwed together so as to be able to adjust the height and having an elastic portion for placing the hanging material 25; Although it is composed of a pair of metal fitting pieces 23, 23 for fixing to the tool 22, since the receiving tool 22 for placing and fixing the large drawing material 25 is supported by one bolt part 21, it is independent There was a problem that the stability was poor and it was easy to fall down when installing. Further, in the floor structure described in Patent Document 2, the same problem is inherent in the auxiliary support legs. Therefore, the floor structure has room for further improvement in terms of construction workability. Furthermore, in this conventional floor structure, not only is the structure of the large lumber support members complicated, but also the auxiliary support legs and the large lumber support members have different structures, which raises the problem of high manufacturing costs. there were.
The present invention solves the above-described conventional problems, has a simple structure, is easy to manufacture, has a low manufacturing cost, and has good workability. It is an object of the present invention to provide a floor structure capable of obtaining sufficient supporting strength.

In order to achieve the above object, the floor structure according to the present invention includes a plurality of rod-shaped hanging members arranged in parallel at predetermined intervals between the opposing walls of a room, and the upper surfaces of these hanging members. A floor structure consisting of a plurality of floorboards laid on the floor, and has a height-adjustable large lumber support member that supports the vicinity of both ends of each of the large lumbers from below on the floor slab of the room. a steel plate main body in which the large lumber support member has a concave portion into which the large lumber can be fitted from above; a pair of flange portions extending outward from both sides of the concave portion; a pair of legs provided with bolts screwed into the flanges so as to be adjustable in height, each leg comprising an elastic pedestal for supporting the bolts, and the pair of legs A steel plate body in which a large wire is fitted in a recess is separated from the floor slab and supported for buffering , and the size of the large wire is such that both ends thereof do not come into contact with the wall. .
The large wire may be made of a cylindrical steel material having a rectangular cross section.
It may be configured such that the middle portion of at least every other large-barrel member is supported on the floor slab from below by the above-mentioned large-barbar support member.
In addition, the large-barrier support member used in the floor structure according to the present invention includes a plurality of bar-shaped large-barriers arranged in parallel at predetermined intervals between the walls facing each other in the room, and these large-barrier members. and a plurality of floorboards laid on the upper surface of the floor slab of the room, and supports each of the above-mentioned hanging timbers on the floor slab of the room so that the height can be adjusted from below. A steel plate main body in which the large lumber support member includes a recess into which the large lumber can be fitted from above, a pair of flange portions extending outward from both sides of the recess, and the flange portions. and a pair of legs provided with bolt portions screwed together so as to be adjustable in height, each leg comprising an elastic pedestal for supporting the bolt portion, and a recess formed between the pair of legs The steel plate main body in which the large tension member is fitted is separated from the floor slab and can be cushioned and supported.

The floor structure according to the present invention comprises a plurality of rod-shaped hanging timbers arranged in parallel at predetermined intervals between the walls facing each other in a room, and a plurality of floorboards laid on the upper surfaces of these draping timbers. The floor structure comprises a height-adjustable lumber support member for supporting near both ends of each lumber on the floor slab of the room from below, wherein the lumber support member is a steel plate main body having a concave portion into which the wire rod can be fitted from above; a pair of flange portions extending outward from both sides of the concave portion; a pair of legs provided with bolts to be joined, each leg provided with an elastic pedestal for supporting the bolts, and a large tension member being fitted in the recesses of the pair of legs. The steel plate main body is spaced apart from the floor slab and supported as a shock absorber, and the dimensions of the above-mentioned large lumber are such that both ends do not come into contact with the wall. It can be supported from below on the floor slab by sandwiching the large lumber with the body. By constructing in this way, the independent stability of each of the large lumber support members is improved, and the construction workability is greatly improved.
In addition, since it is only necessary to fit the large drawbars into the recesses from above, the construction workability is greatly improved in this respect as well. In addition, since the components of the large lumber support member are only the steel plate main body and the pair of legs, the large lumber support member itself can be manufactured more easily than the conventional support member with a large number of parts. It also reduces costs.
Furthermore, since the large wire is supported on the floor slab from below , and the length of the large wire is set such that both ends thereof do not contact the wall, the large wire can be placed in the room. In addition to the floor slab , it can be installed away from the wall, thereby eliminating the propagation of vibrations applied to the floorboard to the floor slab and wall.
In addition, by setting the dimensions of the boniki to a length that does not contact the walls at both ends, the length of the boniki can be shortened compared to the case where both ends of the boniki are supported by the walls. In addition, by setting the dimensions of the shingles so that both ends do not come into contact with the wall, the dimensions of the shingles themselves can be reduced to those used in conventional floor structures. Since it can be made shorter than the dimension of the drawing material, it is possible to reduce the sinking amount of the large drawing material.
Furthermore, by supporting the puller member via an elastic pedestal with two legs instead of one at each support member, it is possible to disperse the vibration transmitted to the floor slab, and the elastic pedestal Together with the support via the slab, it is possible to reduce the vibration transmitted to the floor slab and improve the sound insulation performance.
Furthermore, by fitting a large wire member into the recess and supporting it by sandwiching it between two legs, it is possible to improve the strength against lateral vibration as compared with a conventional large wire member supporting member.
For example, by providing a soundproof sheet or the like on the inner surface of the recess, it is possible to further reduce the propagation of vibration to the base surface.
A plurality of rod-shaped lumber supporting members used in the floor structure according to the present invention are arranged in parallel at a predetermined interval between opposing walls of a room, and upper surfaces of these lumber. and a plurality of floorboards laid on the floor slab of the room. A pulling material support member includes a steel plate main body having a concave portion into which the large pulling material can be fitted from above, a pair of flange portions extending outward from both sides of the concave portion, and each flange portion having a height. a pair of legs provided with bolts that are screwed together so that the length can be adjusted, each leg comprising an elastic base for supporting the bolts, and the pair of legs being large in the recess. Since the steel plate body in which the reinforcement material is fitted can be separated from the floor slab and supported for buffering, the construction of the reinforcement material is facilitated, and the vibrations applied to the floor board can be prevented from the walls and the floor. It is possible to construct a floor structure capable of preventing propagation to the floor slab, furthermore, it is possible to stably support the shingles, and further, the manufacturing cost of the shingling support members themselves can be reduced. be able to.

It is a schematic side view of one Example of the large-barrier support member used for the floor structure based on this invention. 2 is a schematic top view of the large-barrel support member shown in FIG. 1; FIG. 1 is a schematic top view of an embodiment of a floor structure according to the present invention (a part of the floorboard is omitted); FIG. FIG. 4 is an enlarged view of an end portion of the large wire in FIG. 3; FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3; It is a schematic side view of a conventional large-stretch material support member.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a floor structure according to the present invention and a large lumber support member used in the floor structure will be described with reference to an embodiment shown in the accompanying drawings.

FIG. 1 is a schematic side view of one embodiment of a large-barrel support member used in a floor structure according to the present invention, and FIG. 2 is a schematic top view of the large-bark support member.
As shown in the drawing, this large wire support member 1 has a steel plate main body 2. The steel plate main body 2 has a recess 2a into which the large wire 10 can be fitted from above, and external portions from both sides of the recess 2a. It is bent to form a pair of flange portions 2b extending in the opposite direction.
A pair of flange portions 2b is formed with a through hole 2c having an internal thread formed therein.
The large pulling material support member 1 further includes a pair of legs 3 . Each leg 3 comprises a bolt portion 3a that can be screwed into a through hole 2c formed in each flange portion 2b of the steel plate main body 2, and a pedestal 3b made of an elastic material that supports the bolt portion 3a.
Each leg 3 has its bolt portion 3a screwed into the through hole 2c of the flange portion 2b of the steel plate main body 2, and is configured to support the steel plate main body 2 on both sides with the concave portion 2a interposed therebetween. there is By rotating the leg 3, the position of the bolt portion 3a with respect to the flange portion 2b can be changed to adjust the height at which the steel plate main body 2 is supported.
The large lumber support member 1 configured as described above has the bolt portion 3a of the leg 3 screwed into the through hole 2c of the steel plate main body 2, and the steel plate main body 2 is separated from the floor slab 11. After the position of the body 3 is adjusted, the large wire 10 is fitted into the concave portion 2a of the steel plate main body 2 from above, so that the large wire 10 is supported from below while being separated from the floor slab 11.例文帳に追加
As a result, the wire rod 10 is supported by the pair of legs 3 on both sides in the short direction via the steel plate body 2, thereby improving the stability against shaking in the horizontal direction.
In addition, as described above, the large wire supporting member 1 is configured to support the concave portion 2a in which the large wire 10 is fitted from the left and right by the pair of legs 3. The support member 1 itself has high independent stability, and the large lumber support member 1 does not fall down during construction. Therefore, construction workability is extremely good.
In addition, since the large-barrel support member 1 is composed only of the steel plate main body 2 and the pair of legs 3, the number of parts is small, the production is easy, and the production cost is low.
Furthermore, since the large-barrel supporting member 1 can support the large-bark 10 simply by fitting the large-bark 10 into the concave portion 2a of the steel plate body 2 from above, construction is extremely easy. Therefore, for example, even if the large-barrel support member 1 is used as a reinforcing support member for supporting the intermediate portion of the large-bark 10, the construction work will not be complicated.
Furthermore, since the large lumber support member 1 is configured to support the large lumber 10 from below on the floor slab 11, for example, the lumber 10 can be supported by two lumber support members 1. Even when both ends are supported, the interval between the large lumber support members 1 can be shortened compared to the case of supporting by the frame wall 12 . For this reason, the sinking of the large wire 10 against the load applied to the floor plate from above is smaller than in the case of supporting by the frame wall 12. As a result, it becomes unnecessary to use the large wire with extremely high rigidity. , it becomes possible to use a lightweight large drawing material 10.
Further, by constructing the large wire support member 1 to support the large wire 10 from below, there is no need to bring the wire 10 into contact with the wall 12 surface, and both ends of the wire 10 can be It becomes possible to separate slightly from the wall 12 surface. This makes it possible to shorten the length of the large wire 10 compared to the structure supported by the frame wall 12, so from this point of view, the amount of sinking of the large wire 10 against the load from above can be made smaller.
Further, by separating the large-barrier 10 from the frame wall 12, vibration is not transmitted from the large-barrier 10 to the frame wall 12. - 特許庁In addition, since the hanging lumber support member 1 supports the hanging lumber 10 with the two legs 3, it is possible to disperse the vibration transmitted from the floor board to the floor slab 11 via the hanging lumber 10. In addition, since the pedestal 3b of the leg 3 is made of an elastic member, vibration noise transmitted to the floor slab 11 can be effectively reduced.
Although not described in this embodiment, for example, by providing an elastic member layer such as a rubber plate on a part or the entire inner surface of the concave portion 2a of the steel plate main body 2, the large wire 10 supports the large wire. It becomes possible to further reduce vibrations that propagate to the floor slab 11 via the member 1 .

Next, a description will be given of a floor structure using the large drawing material support member 1 configured as described above.
FIG. 3 shows a top view of an embodiment of a floor structure according to the invention.
As shown in the drawing, on the floor slab 11 of the frame, a plurality of large hanging members 10 are laid at regular intervals in parallel with the walls in the short direction of the room.
In this embodiment, each large wire member 11 is a square steel with a square cross section, and as shown in FIG. are supported on the floor slab 11 near both ends thereof.
FIG. 5 is a cross-sectional view taken along the line AA in FIG. It is supported on the floor slab 11 from below by a pair of legs 3 screwed into a pair of flanges 2b of the main body 2. As shown in FIG.
In addition, as shown in the drawing, the large wire support member 1 is provided for reinforcement every other wire near the middle in the longitudinal direction of the plurality of wire ropes 11 .
A plurality of floorboards 13 are laid above the large drawing materials 10 laid as described above. As shown in the drawing, the floorboards 13 are arranged with their lateral ends shifted.
As described above, since it is not necessary to bring both ends of the large tension member 10 into contact with the walls 12, the length can be shortened compared to the case where both ends are supported by the walls 12, and Since the wire 10 is supported from below, it is not necessary to provide the wire support member 1 at the extreme end of the wire. Therefore, it is possible to shorten the interval between the large-barrier support members 1, and as a result, it is possible to reduce the amount of sinking of the large-barrier member 10. As shown in FIG. The position where the large drawing material supporting member 1 is provided is not limited to the illustrated embodiment, and it is also possible to provide it on the inner side, that is, on the side away from the end.
As described above, according to the floor structure according to the present embodiment, the amount of sinking of the large-barriers 10 due to the load applied to the floor plate 13 can be reduced. It is no longer necessary to provide the support member 1, and as a result, compared to the conventional floor structure in which it was necessary to provide reinforcing support members for all of the large lumbers, the number of large lumber support members can be reduced, and construction can be simplified. becomes easier and the cost can be reduced.
Furthermore, the large-barrel supporting member 1 that supports the vicinity of both ends of the large-bark 10 and the reinforcing large-bark supporting member 1 that supports the vicinity of the center of the large-bark 10 can have the same structure. Therefore, the manufacturing cost of the large drawing material supporting member itself is also reduced.
According to the floor structure constructed as described above, since the large slabs are separated from the wall 12 , the vibrations applied to the floor board are not transmitted to the wall 12 . Furthermore, since the large-barrier support member 1 for supporting each large-barrier 10 is supported by the two legs 3, the vibration transmitted from the floor plate 13 to the large-barrier 10 is dispersed to the floor slab 11. In addition, since the two legs are in contact with the floor slab 11 via pedestals each made of an elastic member, it is possible to reduce vibration transmitted to the floor slab 11 to a minimum. . This prevents the vibration applied to the floor plate 13 from propagating to the wall 12 and the floor slab 11, making it possible to exhibit excellent sound insulation performance.

Reference Signs List 1 large lumber support member 2 steel plate main body 2a concave portion 2b flange portion 2c through hole 3 leg 3a bolt portion 3b pedestal

10 Large timber 11 Floor slab 12 Wall 13 Floor board

Claims (2)

A plurality of bar-shaped large-barrels arranged in parallel at predetermined intervals between the walls facing each other in the room;
A floor structure consisting of a plurality of floorboards laid on the upper surface of these large timbers,
Having a height-adjustable large lumber support member that supports near both ends of each of the large lumbers from below on the floor slab of the room,
The large drawing material support member is
a steel plate main body having a concave portion into which the large drawing material can be fitted from above, and a pair of flange portions extending outward from both sides of the concave portion;
and a pair of legs provided with bolts that are screwed into the flanges so that the height can be adjusted,
Each of the legs has an elastic pedestal for supporting the bolt portion, and the pair of legs provide shock-absorbing support for the steel plate main body, in which a large tension member is fitted in the concave portion, away from the floor slab,
The dimensions of the large pulley are such that both ends do not contact the wall ,
It is constructed such that the middle part of at least every other large lumber is supported on the floor slab from below by the said large lumber support member.
A floor structure characterized by: 2. The floor structure according to claim 1, characterized in that said timbers are made of square steel with a rectangular cross section.

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