JP2001132208A - Floor panel for building and floor structure of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the floor structure of a building in which productivity and workability are improved by simple structure while noises can be reduced. SOLUTION: A sound-insulating sheet 17 formed of a member having large sound-insulating characteristics such as a natural rubber is bonded and held integrally between a pair of OSB boards 16, 16 formed in a tabular shape of a binder such as a phenol resin from wood chips, and a plate-shaped floor panel structure 15 is formed. The floor panel structures 15 are supported and spread all over vertically movable placing sections 36 for support legs 31 at fixed positions from a floor face 4 in the structure 3 of the building. Under-laying plywood 38 is spread all over the top faces of the floor panel structure 15, and decorative board materials 39 are spread all over the plywood, thus constituting the floor structure 5. The floor panel structure 15 is formed in a plate shape in the same manner as the plywood, and can reduce noises generated by the propagation of impulses and vibrations to the building by a simple structure in which productivity and handling properties are improved and workability can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a floor panel constituting a floor of a building and a floor structure of the building using the floor panel.

[0002]

2. Description of the Related Art Conventionally, in a reinforced concrete apartment house such as a condominium or a corpus, shocks and vibrations caused by falling objects or moving furniture on the upper floor propagate to the lower floor and become noise. Various sound insulation measures have been taken to improve the comfort on the floor.

[0003] As a conventional sound insulation measure, for example, a floor plate base material is provided between the floor of a building and the floor of the building at the upper end of a rod-shaped support member having hard rubber or the like attached to the lower end thereof. A piping space is provided and fixed, and a heat insulating sound absorbing member such as urethane foam is provided so as to cover the floor of the building in the piping space, and a decorative floorboard is spread over the upper surface of the floorboard base material to form a floor structure. I have.

[0004] However, even if a heat insulating sound absorbing material such as urethane foam is provided on the floor of the building, the shock and vibration applied to the decorative floorboard are applied to the floor of the building via the floorboard base material and the support members. It may be transmitted and noise may not be sufficiently reduced.

[0005] Therefore, between the floorboard base material and the decorative floorboard,
A configuration in which a sound insulation sheet such as a rubber sheet is interposed is employed.

However, in the configuration in which the sound insulation sheet is interposed, the sound insulation sheet is laid once, the sound insulation sheet is laid, and then the decorative board material is laid. In addition, it is necessary to use a thick plate having a predetermined strength and a large thickness dimension, which increases the material cost and complicates the construction.

On the other hand, as a floorboard base material, a plate material such as plywood is integrally attached to at least one surface of a frame-like body formed by assembling a square frame into a frame shape so as to close an opening surface of the frame-like body. It is known that a floor is formed by using a panel structure and appropriately mounting and fixing the panel structure to a support member.

Therefore, a sound insulating sheet is integrally attached to the panel structure to form a panel structure having sound insulating properties.
It is conceivable to construct a floor using the panel structure having sound insulation. However, it is necessary to form a frame, attach a plate material to the frame, and attach a sound insulation sheet, so that productivity cannot be improved.

[0009]

As described above, the configuration in which the heat insulating sound absorbing member is provided in the pipe space cannot sufficiently reduce the noise.

Further, in a configuration in which a sound insulation sheet is interposed between a floor panel base material and a decorative floor panel, a predetermined strength is required for the floor panel base material, so that the material cost increases and the workability cannot be improved.

Further, in the configuration in which the sound insulating sheet is provided on the panel structure, there is a problem that the productivity of the panel structure cannot be improved.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a floor panel for a building and a floor structure of a building capable of improving manufacturability and workability with a simple structure and reducing noise. With the goal.

[0013]

According to a first aspect of the present invention, there is provided a floor panel for a building, comprising a pair of flat processing plates, each of which includes a wood chip and a binder, and a floor plate is installed on one of the surface sides. And a sound insulating sheet having sound insulating properties, which is integrally held between these processed plates.

Since the sound insulating sheet having the sound insulating property is integrally held between a pair of flat processing plates containing the wood chip and the binding material, the workability is excellent, but the thickness is small to some extent. Even if it becomes a processed plate where the bending strength is greatly reduced, by forming a plate with a simple structure of sandwich structure with a sound insulation sheet interposed,
The load resistance, manufacturability and workability are improved, and the sound is largely shielded, so that a processed plate can be used as a floor plate of a building.

The floor panel for a building according to the second aspect is the floor panel for a building according to the first aspect, wherein the processing plate is:
OSB.

Further, since OSB is used as the processed plate, stable characteristics can be obtained even in an area where the strength is high, there is no warpage, and climate change is large.

According to a third aspect of the present invention, there is provided a floor structure for a building, wherein the floor panel for the building according to the first or second aspect, a floor plate installed on the surface side of the floor panel for the building, and a building at the lower end are provided. A sound insulation member having a sound insulation property to be grounded to the floor of the building is attached, and a mounting portion for mounting and fixing the floor panel for the building is provided at the upper end portion. The floor panel for the building is moved from the floor of the building to the floor. And a supporting member that is supported separately.

The lower end is provided with a sound-insulating member having a sound-insulating property that is in contact with the floor of the building. The floor panel for a building according to claim 1 or 2 is mounted and fixed to support the floor panel away from the floor of the building, and the floor panel is installed on the surface side of the floor panel. Noise is reduced.

[0019]

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

In FIGS. 2 and 3, reference numeral 1 denotes a reinforced concrete building which is an apartment house such as an apartment or a corpus, and the building 1 has a structure 3 which divides a living space 2 for each house. A floor structure 5 that covers a floor surface 4 of a structure 3 of a building 1 in a living space portion 2 that is appropriately formed with water and sewage, electricity, gas, and ventilation pipes (not shown) and is formed in a partitioned manner. A ceiling structure 7 that covers the ceiling surface 6 of the ceiling 3 and a wall structure 10 that covers the wall surface 8 of the structure 3 and partitions each room 9 are provided.

The renovated living space 2 is
A heat insulating material 11 is provided on substantially the entire inner surface of the structure 3 of the building 1, and a heat insulating layer 12 is formed. As the heat insulating material 11, for example, a material formed in a plate shape such as urethane foam is used.
It is attached to the floor surface, ceiling surface 6 and inner surface of the wall surface 8 of the structural body 3 with a woodwork bond or the like. In addition, for example, places where urethane foam is difficult to construct, such as corners,
The heat insulating layer 12 is formed by applying or spraying urethane foam.

As shown in FIGS. 1 and 4, the floor structure 5 includes a plurality of floor panel structures 15 that are floor panels for a building spread over the floor 4 of the structure 3. It consists of. The floor panel structure 15 is, for example, a square having a side of about 900 mm and a thickness of about 9.5 m.
m, a pair of processed plates 16, 16, and a sheet-like sound insulation sheet 17 having a thickness of about 3 mm sandwiched between the processed plates 16, 16 by being integrally bonded with a woodworking adhesive or the like. At 3
It is formed in a layer structure.

The processed plate 16 is an OSB (Oriental Structural Board) plate formed by bonding wood chips with a bonding material, ie, a plate made of a water-resistant and heat-resistant resin such as phenol resin. Is used. As the sound insulation sheet 17, for example, natural rubber,
A sheet formed of a member having a large sound insulation property such as synthetic rubber, foamed rubber, foamed urethane, or the like is used.
The floor panel structure 15 is integrally formed by joining the sound insulating sheet 17 between the pair of processing plates 16 and 16 while being pressed in the stacking direction.

The floor panel structure 15 is placed on the floor 4 of the building 1 with the support legs 31 as support members. These support legs 31 have a through portion 32 at one end and a sound insulating member 33 formed in a truncated cone shape with rubber or the like, which is in contact with the floor surface 4 of the building 1 at the other end, and is rotatably attached thereto. Substantially cylindrical body with male threads (not shown)
It has 34. An engaging portion (not shown) with which a tool such as a Phillips screwdriver or a hexagon wrench is engaged is provided on an end surface of the through portion 32. An intermediate portion of the body portion 34 is provided with a female screw (not shown) which is screwed into the male screw of the body portion 34 on the inner peripheral surface, and has a mounting flange portion 35a in a flange shape on the outer peripheral surface. A nut 35 is provided which is attached and is movable in the axial direction of the body 34 by rotating relative to the body 34. Further, on the upper surface of the mounting flange portion 35a of the nut portion 35, for example, one side is made of plywood or the like.
It is formed in a substantially square plate shape having a thickness of 15 mm and a thickness of 15 mm, a through portion 32 is penetrated substantially in the center, and a mounting portion 36 on which the floor panel structure 15 is mounted is integrally attached to the upper surface. . Then, the floor panel structure 15 which is the upper surface of the mounting portion 36
An adhesive 37, such as a butyl rubber-based adhesive, for adhering the floor panel structure 15 is provided with a thickness of about 1 mm on the surface on the side of the penetrating portion 32 on which is mounted. In addition, this adhesive
37 is preferably a material having sound insulation properties like the sound insulation sheet 17 by bonding the floor panel structure 15 to the mounting portion 36. Alternatively, a sound insulating member having sound insulating properties such as the sound insulating sheet 17 may be simply provided without using the adhesive 37.

Further, in a place where the floor panel structure 15 cannot be installed as it is due to the shape of the structure 3 of the building 1,
It is cut and arranged on site at a shape suitable for the structure 3. In addition, you may form in advance a different shape in a factory etc. Also, of the floor panel structure 15, the floor panel structure 15 whose periphery is opposed to the wall surface 8 of the structure 3 of the building 1 has a support leg 31 near the periphery thereof opposed to the wall surface 8 of the structure 3. A through hole through which the through portion 32 can pass is appropriately formed.

The support legs 31 are appropriately placed on the floor surface 4 of the structure 3 of the building 1, and the peripheral portion of the floor panel structure 15 is placed on the upper surface of the mounting portion 36 of the support legs 31. The floor panel structure 15 is placed so as not to cover the engagement portion of the through portion 32 of the floor 31.
Is fixed to the receiver 36 with nails or the like and is integrally attached thereto. The floor panel structure 15 disposed along the wall 8 of the building 1 has a through hole provided in advance.
It is mounted on the mounting portion 36 of the support leg 31 so that the position 32 is located.

After that, the floor panel structure 15 to which the support legs 31 are attached is temporarily placed in accordance with a level (not shown) provided in advance on the structure 3 by black ink, and the support legs 31 are placed with a tool. The height of the floor panel structure 15 is adjusted by varying the position of the part 36 and a level is used to support the floor panel structure 15 so as to be separated from the floor surface 4 of the building 1 by a predetermined dimension and lifted upward. The floor panel structure 15 covers the floor surface 4 of the structure 3 in one plane. Then, on the upper surface of the laid floor panel structure 15, a discarded bonding board 38 is laid without gaps, and on the upper surface of the discarded bonding board 38, a decorative board material 39 such as a wooden flooring, which is a floor board, is fixed without nails or the like. ,
The floor structure 5 is constructed by being laid flat. Instead of the decorative board 39, a floor material such as a tatami mat or a tile may be spread, or a floor heating sheet may be spread before the decorative board 39 or the floor material is provided.

Under the floor between the floor structure 5 and the floor 4 of the structure 3 of the building 1, pipes for water supply and sewage and gas (not shown) are provided. On the floor 4, for example, a urethane resin foam is placed at a position where the support legs 31 are not provided.
40 are paved.

On the other hand, as shown in FIGS. 5 and 6, the ceiling structure 7 has a base panel 41 as a frame-like body shown in FIGS. 7 and 8, and a ceiling panel structure shown in FIGS. 9 and 10. 42.

The base panel 41 is made of, for example, a square bar 43 having a width of about 40 mm and a thickness of about 30 mm.
The shaft is formed in a lattice frame shape having a vertical dimension of 1800 mm and a horizontal dimension of 900 mm. Note that the base panel 41 is
Are formed in a grid pattern at intervals of 455 mm at the center position of.

The ceiling panel structure 42 uses, for example, a square bar 44 having a width of about 40 mm and a thickness of about 24 mm, and has a length of about 1800 mm and a width of about 445 mm.
The ceiling frame 45 is a frame formed by forming a frame in the shape of a frame. On one surface of the ceiling frame 45, for example, a fire-resistant board 46 such as a plaster board, which is a plate having a vertical dimension of about 1800 mm, a horizontal dimension of about 445 mm, and a thickness dimension of about 9.5 mm, is nailed. The ceiling frame 45 is attached with one surface closed. On the surface of the fire-resistant board 46 on the side attached to the ceiling frame 45, a sound insulation sheet 25 similar to the floor panel structure 15 located between the square members 44, 44 is provided by an adhesive for woodwork or the like. Installed. Further, a sound insulating member 24 having a thickness of about 15 mm formed of, for example, corrugated cardboard and having a honeycomb structure is attached to the shielding sheet 25 with a woodworking adhesive, and the ceiling panel structure 42 has a vertical dimension. It is formed in a panel shape having a size of about 1800 mm, a lateral dimension of about 445 mm, and a thickness dimension of about 29 mm.

On the peripheral surface of the ceiling frame 45, a concave groove-shaped connecting groove 47 having, for example, a width of about 4 mm and a depth of about 10 mm is provided. As soon as a connecting member such as a piece of wood or plywood cut to a width of about 18 mm and a thickness of about 4 mm is engaged with the connecting groove 47, the adjacent ceiling panel structure 42 is connected. You.

Then, an unillustrated male screw portion of a blade bolt 49 is screwed and supported by an anchor having a female screw (not shown) which is appropriately embedded in the ceiling surface 6 of the structure 3 of the building 1 in advance. For example, the bolt 49 has a width of about 30 mm, a thickness of about 40 mm, and a length of about 2
One end side of a suspension tree 50, which is a 00 mm square bar, is nailed or bolted at one end along a substantially vertical direction. The base panel 41 is nailed to this suspended and supported suspension tree 50 in accordance with a level (not shown) provided in advance so that the plane direction is substantially horizontal, and the base panel 41 is supported by hanging. . Further, a plurality of ceiling panel structures 42 are nailed to the ceiling panel structure 42 on the lower surface side of the base panel 41 with the fireproof board 46 facing downward, and connected in one plane with a nut 48 to sequentially nail. The panel structure 42 constitutes a ceiling structure 7 that covers the ceiling surface 6 of the structure 3. The base panel
In a position where the panel structure 41 and the ceiling panel structure 42 cannot be arranged, the structure is appropriately cut on site at a shape corresponding to the structure 3.

Electrical wiring (not shown) is provided between the ceiling structure 7 and the ceiling surface 6 of the structure 3 of the building 1, as shown in FIG. An exhaust device 53 having a fan or the like for exhausting the air through a ventilation pipe 52 provided in the structure 3 in advance is provided.

On the other hand, the wall structure 10 is shown in FIGS.
As shown in FIG. 25, an outer wall structure 61 provided to cover the wall surface 8 of the structure 3 of the building 1 and a partition structure 62 for partitioning each room 9 as shown in FIGS. It is configured.

The outer wall structure 61 is a lower outer wall panel 63 as a wall panel structure which is the panel structure shown in FIGS. 17 to 19, and a wall panel structure shown in FIGS. 20 to 22. The upper outer wall panel 64 is provided.

The lower outer wall panel 63 is formed of a frame member having a length of about 1200 mm and a width of about 445 mm by using, for example, a square member 65 having a width of about 40 mm and a thickness of about 24 mm. A lower outer wall frame 66 is provided. In addition, the lower outer wall frame 66 is a long rectangular material.
One end of 65 is on one end side in the longitudinal direction, and the longitudinal direction is a square bar in the width direction
The portion protrudes by about 150 mm from the center of 65, and the protruding portions serve as lower contact portions 67, 67.

On one surface of the lower outer wall frame 66, a fireproof board 68 such as a gypsum board, which is a plate having a vertical dimension of about 1040 mm, a horizontal dimension of about 445 mm, and a thickness dimension of about 9.5 mm, is nailed. The lower outer wall frame 66 is attached so as to close a part of one surface thereof. That is, the lower outer frame
The lower end of the lower contact portion 66, 67 does not project from the other end about 70 mm from the other end side to the widthwise square member 65 on the side where the lower contact portion 67, 67 projects from the one end side is closed. The lower connecting wiring opening 70 is opened at one end where the contact portions 67 and 67 protrude, and the ventilation opening 71 having a width of about 70 mm at the other end is formed.

Further, a rectangular member in the longitudinal direction of the lower outer wall frame 66 is provided.
A lower connecting groove 72 which is a concave groove-shaped connecting groove having a width dimension of about 4 mm and a depth dimension of about 10 mm is provided on the side surface of 65.

On the other hand, the upper outer wall panel 64 has a width of about 40 mm and a thickness of about 24 mm, like the lower outer wall panel 63, for example.
The upper outer wall frame 75 is a frame formed by using a square member 65 mm and having a vertical dimension of about 1200 mm and a horizontal dimension of about 445 mm. In addition, this upper outer frame
75, one end of the elongated rectangular bar 65 projects to the one end side in the longitudinal direction from the center of the rectangular bar 65 in the longitudinal direction in the width direction by about 150 mm,
The protruding portions serve as upper contact portions 76. Further, on the side opposite to the side from which the upper contact portions 76, 76 of the upper outer frame 75 protrude, there is no rectangular member 65 whose longitudinal direction is the width direction, and an opening 77 for ventilation wiring is formed. ing.

On one surface of the upper outer wall frame 75, for example, similarly to the lower outer wall panel 63, a gypsum board which is a plate material having a length of about 1040 mm, a width of about 445 mm, and a thickness of about 9.5 mm A fire-resistant board 68 is nailed, and is attached so as to close a part of one surface of the upper outer frame 75.
That is, the widthwise square member on the side where the upper contact portions 76 and 76 project from the other end where the upper contact portions 76 and 76 do not project from the upper outer wall frame 75.
65 is closed, and an upper connection wiring opening 78 is formed at one end where the upper contact portions 76 and 76 project.

Further, the rectangular material in the longitudinal direction of the upper outer frame 75 is used.
On the side surface of 65, for example, an upper connecting groove portion 79 which is a concave groove-shaped connecting groove portion having a width of about 4 mm and a depth of about 10 mm is provided.

Then, the upper outer wall panel 64 and the lower outer wall panel 63
As shown in FIG. 16 to FIG. 21, for example, a packing 81 having air permeability is attached to a heat insulating material 11 previously attached to the structure 3 of the building 1 in a substantially horizontal direction in a longitudinal direction, and The upper contact portions 76 and 76 and the lower contact portion 6 are attached to the body edge 82 which is a long plate material having a width of about 90 mm and a thickness of about 15 mm attached by a stopper.
The ends of 7,67 are abutted and nailed. Further, the connecting member 83 such as a piece of wood or a plywood cut into a width dimension of about 4 mm and a thickness dimension of about 18 mm across the communicating upper connecting groove portion 79 and lower connecting groove portion 72 is engaged. The upper upper wiring panel 64 and the lower outer wall panel 63 are connected to each other, and the upper connecting wiring opening 78 and the lower connecting wiring opening 70 that are open to communicate with the upper outer wall panel 64 and the lower outer wall panel 63 are connected to each other. A closed plywood 85 as a closed plate, which is a plate material of about 9.5 mm, is nailed to each of the upper outer wall frame 75 and the lower outer wall frame 66 and closed in series to form a one-plane outer wall structure 61. Is done.

For example, depending on the shape of the structure 3 of the building 1, for example, in the portions of the beams 3a and the columns 3b, FIGS.
As shown in FIG. 1, the lower outer wall panel 63 and the upper outer wall panel 64 are appropriately cut, and the lower outer wall panel 63 and the upper outer wall panel 64 cut corresponding to the beams 3a and the pillars 3b of the structure 3 are combined with the structure 3 It is attached so as to wrap the beam 3a and the pillar 3b. In addition,
The exposed end located at the corner of the lower outer wall panel 63 and the upper outer wall panel 64 attached so as to wrap the beams 3a and the columns 3b of the structure 3 is, for example, a protruding corner spacer 86 appropriately cut from a plate material.
Is protected by nailing.

The closing plate for closing the opening 70 for the lower connecting wiring and the opening 78 for the upper connecting wiring is not limited to the closed plywood 85 but may be a fireproof board or the like. Is preferred.

An outer wall surrounding edge member 91 is provided along an edge of the outer wall structure 61 and the ceiling structure 7 at an end of the outer wall structure 61 which is in contact with the ceiling structure 7. As shown in FIG. 23, the outer wall surrounding edge member 91 has a width dimension of 43, for example.
An elongated square bar having a thickness of about 35 mm and a thickness of about 35 mm is processed, and an intermediate portion 92 having a thickness of about 20 mm and a width of about 34 mm.
And a peripheral edge having a width of about 35 mm and a thickness of about 10 mm integrally provided at one end of the interposed portion 92 in the width direction.
93 are formed in a substantially L-shaped cross section. Further, a chamfer 94 is provided at one protruding edge of the surrounding edge portion 93.

The outer wall surrounding edge member 91 is provided at the interposed portion.
92 is positioned between the outer wall structure 61 and the ceiling structure 7 so as to be sandwiched between the outer wall structure 61 and the ceiling structure 7. The gap between 61 and the ceiling structure 7 is adjusted, and the surrounding edge 93 covers the gap.

Further, at the lower part of the lower outer wall panel 63 which is the lower part of the outer wall structure 61, there is provided a ventilation baseboard 95 which is a baseboard for closing the ventilation opening 71. This ventilation baseboard 95
As shown in FIG. 24, a pair of slender plate-shaped lower baseboards 96 and upper baseboards 97 are provided. The lower baseboard 96 is formed, for example, by processing an elongated plate material having a width dimension of about 40 mm and a thickness dimension of about 15 mm, and has a width dimension of about 10 mm and a depth dimension at one edge in the width direction along the longitudinal direction. Is about 10 mm lower step 98
Are provided along the longitudinal direction. In addition, upper skirting board 97
Is, for example, a width of about 45 mm and a thickness of about 15 mm
An elongated plate material is processed, and an upper step portion 99 having a width dimension of about 10 mm and a depth dimension of about 10 mm is provided along the longitudinal direction at one edge in the width direction along the longitudinal direction, and at the other edge in the width direction. Is provided with an engagement step portion 100 with which the fireproof board 68 of the lower outer wall panel 63 is engaged.

Then, the lower skirting board 96 contacts the floor structure 5 and closes the lower side of the ventilation opening 71, and is nailed to the lower outer wall frame 66 of the lower outer wall panel 63, and the upper skirting board 97 is closed. The upper side of the ventilation opening 71 is closed and nailed to the lower outer wall frame 66 of the lower outer wall panel 63, between the lower step 98 of the lower base 96 and the upper step 99 of the upper base 97. A ventilation path 101 is provided in the outer wall structure 61 by providing a ventilation path 101 in a slit shape.

It is to be noted that the upper outer wall panels 64, 64, which are gaps between the outer wall structures 61, between the square members 65, 65 of the upper outer wall frames 75, 75 and the lower outer wall frames 63, 63 of the lower outer wall panels 63, 63. 66 square lumber 65,
The space 65 communicates with the underfloor between the floor structure 5 and the floor 4 of the structure 3 of the building 1 and also communicates with the underside of the ceiling. Exhaust. Further, the inside of the room 9 communicates with the gap of the outer wall structure 61 through the ventilation path 101 of the ventilation baseboard 95,
The exhaust device 53 exhausts humid air that tends to accumulate especially in the vicinity of the floor.

In each of the upper outer wall panel 64 and the lower outer wall panel 63, electric wiring is appropriately provided from the ceiling structure.

On the other hand, the partition structure 62 includes a lower partition panel 105 which is a wall panel structure shown in FIGS. 28 to 30, and an upper partition panel 106 which is a wall panel structure shown in FIGS. It consists of.

The lower partition panel 105 is made of, for example, a square member 107 having a width of about 40 mm and a thickness of about 45 mm.
Is used, the vertical dimension is about 1200 mm and the horizontal dimension is about 445.
The lower partition frame 108 is a frame formed by forming a frame in a mm frame. The lower partition frame 10
8, one end of the elongated bar 107 protrudes from the center of the bar 107 in the longitudinal direction to the one end side in the longitudinal direction from the center of the bar 107 in the longitudinal direction, and the protruding portion becomes the lower contact portion 109.

On both sides of the lower partition frame 108,
For example, the vertical dimension is about 1050mm and the horizontal dimension is about 445m
A refractory board 110 such as a gypsum board, which is a plate material having a thickness of about 9.5 mm and a thickness of about 9.5 mm, is nailed, and is attached by closing a part of both surfaces of the lower partition frame 108. That is, the lower partition frame-like member 108 is closed from the other end where the lower contact portion 109 does not project to the center of the elongated rectangular bar 107 in the width direction on the side where the lower contact portion 109 protrudes on one end side. An opening 111 for the lower connection wiring is formed at one end side where the contact portion 109 protrudes.

Further, a lower connecting groove 112 which is, for example, a concave groove-shaped connecting groove having a width of about 9 mm and a depth of about 10 mm is provided on the side surface of the rectangular member 107 in the longitudinal direction of the lower partition frame 108. Have been.

On the other hand, the upper partition panel 106 is made of, for example, a rectangular bar 107 having a width of about 40 mm and a thickness of about 45 mm similar to that of the lower partition frame 108, and a vertical dimension of about 12 mm.
It has an upper partition frame 115, which is a frame formed in a frame shape of 00 mm and having a lateral dimension of about 445 mm. The upper partitioning frame 115 has one end of the long rectangular bar 107 on one end side in the longitudinal direction and the long rectangular bar 107 in the width direction.
Projecting from the center of about 150 mm, and this protruding portion becomes the upper contact portion 116. Further, on the opposite side of the upper partition frame 115 from which the upper contact portion 116 protrudes, there is no square member 107 whose longitudinal direction is the width direction.
An opening 117 is formed.

On both sides of the upper partition frame 115,
For example, the same vertical dimension as the lower partition frame 108 is about 105
0mm, width about 445mm, thickness about 9.5m
m, a fire-resistant board such as a gypsum board 110, 110
The upper partition frame 115 is attached by closing a part of both sides thereof. That is, the upper partition frame 115 is closed from the other end where the upper contact portion 116 does not project to the widthwise bar 107 on the side where the upper contact portion 116 projects, and is connected to the one end where the upper contact portion 116 projects. Wiring opening
An opening 118 is formed.

Further, an upper connecting groove 119, which is a concave connecting groove having a width of about 9 mm and a depth of about 10 mm, is provided on the side surface of the rectangular bar 107 in the longitudinal direction of the upper partition frame 115. Have been.

Then, the lower partition panel 105 and the upper partition panel 106 are connected to the lower abutment portion 10 in accordance with a black color (not shown) provided in advance on the floor structure 5 and the outer wall structure 61.
9 and the upper contact portion 116 are abutted to the floor structure 5 and the outer wall structure 61 by nailing. Further, a connecting member 120 such as a piece of wood or plywood cut to a width of about 9 mm and a thickness of about 18 mm is engaged with the upper connecting groove 119 and the lower connecting groove 112 which communicate with each other. An upper connection wiring opening that is connected to the adjacent upper partition panel and lower partition panel, and that opens to communicate with the upper partition panel 106 and the lower partition panel 105.
118 and the lower connection wiring opening 111 are connected to each of the upper partition frame 115 and the lower partition frame 108 by inserting a closed refractory board 122 which is a plug plate such as a gypsum board having a thickness of about 9.5 mm. A series of partition structures 62 are formed by nailing and closing in series.

The partition structure 62 and the ceiling structure 7 are provided at the ends of the partition structure 62 which are in contact with the ceiling structure 7.
A partition surrounding edge member 125 is provided along the edge of the partition. As shown in FIG. 34, the partition surrounding edge member 125 is formed by, for example, processing an elongated rectangular piece having a width of 85 mm and a thickness of 35 mm, and an intermediate portion 126 having a thickness of about 20 mm and a width of about 65 mm. A peripheral edge 127 having a width of about 35 mm and a thickness of about 10 mm integrally provided on both sides in the longitudinal direction, which are both ends in the width direction, of the interposed portion 126.
127 are formed in a substantially U-shaped cross section. Also,
The protruding outer edge of each surrounding edge 127, 127 has a chamfer 12
8 are provided.

The partition surrounding edge member 125 is located such that the interposed portion 126 is sandwiched between the partition structure 62 and the ceiling structure 7, and is provided on the surface of the partition structure 62 located on the room 9 side. The surrounding edges 127, 127 are provided so as to abut against each other to cover the end of the partition structure 62, and adjust the gap between the partition structure 62 and the ceiling structure 7, so that the surrounding edges 127, 127 cover the gap. .

Further, in each of the upper partition panel 106 and the lower partition panel 105, electric wiring (not shown) which is appropriately wired from the ceiling structure 7 is provided.

Next, the operation of the remodeling work of the above embodiment will be described with reference to the drawings.

First, when rebuilding the building 1 such as an apartment house, all existing walls, ceilings and floors are removed. In addition, when the heat insulating material is attached to the floor surface 4, the wall surface 8, and the ceiling surface 6 which are the inner surfaces of the structure 3, these are also removed. Then, a heat insulating material 11 formed in a plate shape such as urethane foam is attached to each of the inner surfaces of the exposed structure 3 such as the floor surface 4, the wall surface 8, and the ceiling surface 6, thereby forming a heat insulating layer 12. Note that, for example, a portion where the urethane foam is difficult to be applied, such as a corner portion, is subjected to processing such as applying or spraying urethane foam.

Thereafter, pipes for water and sewage, electricity, and gas are appropriately provided.

Next, the plurality of floor panel structures 15, 15
As shown in FIG. 1 and FIG. 4, the floor structure 4 is laid over the floor surface 4 to form a floor structure 5. That is, the supporting legs 31 are appropriately attached to the floor panel structure 15, and about three floor panel structures 15 are placed on the floor surface 4 of the structure 3 of the building 1, and the structure 3 is previously blackened. It is temporarily placed in accordance with the provided level (not shown). Then, the position of the mounting portion 36 of the support leg 31 is changed with a tool, and the height of the floor panel structure 15 is adjusted with a level or the like, that is, a predetermined distance above the floor surface 4 of the structure 3. Adjust to position.

With reference to the floor panel structure 15 thus arranged, another floor panel structure 15 to which the support legs 31 are attached is laid one after another while adjusting the height with the support legs 31.
In a position where the floor panel structure 15 cannot be disposed due to the shape of the structure 3 of the building 1, the floor panel structure 15
Is cut at the site corresponding to the shape of the structure 3, and the support legs 31 are cut.
, And adjust the height as appropriate, and spread them in sequence.

Further, on the upper surface of the floor panel structure 15 laid over the floor surface 4 of the structure 3 in one plane, a waste bonding plate 38 is laid, and a decorative plate material 39 is placed on the waste bonding plate 38.
And the floor structure 5 is constructed. Thereafter, a ground black indicating a position for providing the partition structure 62 is applied to the floor structure 5.

Next, a male screw (not shown) of the blade plate bolt 49 is screwed and supported by an anchor having a female screw (not shown) appropriately embedded in the ceiling surface 6 of the structure 3 of the building 1 in advance. Then, a suspension tree 50 having, for example, a width of about 30 mm, a thickness of about 40 mm, and a length of about 200 mm is nailed or bolted to one end of the blade bolt 49 along the longitudinal direction substantially in the vertical direction. . The base panel 41 is nailed to the suspended and supported suspension tree 50 so as to be leveled in advance so that the plane direction is substantially horizontal, and the base panel 41 is supported by hanging. After the installation of the base panel 41, electrical wiring work is performed, and an exhaust device 53 is provided.

Then, the ceiling panel structure 42 is nailed to the lower surface side of the base panel 41 with the fireproof board 46 facing downward,
A ceiling structure 7 that covers the ceiling surface 6 of the structure 3 is constituted by a plurality of ceiling panel structures 42 that are connected in one plane at a time by nails 48 and are sequentially nailed. Further, when the ceiling panel structure 42 is attached, an electric wiring work for leading out the wired electric wires downward from the lower surface of the ceiling panel structure 42 is performed.

Next, a gas-permeable packing 81 is positioned on the heat insulating material 11 attached to the structure 3 of the building 1 so that the longitudinal direction thereof is substantially horizontal, and is attached with an adhesive and screwed. And attach it. In addition, this packing 81
Then, for example, a body edge 82 which is a long plate having a width of about 90 mm and a thickness of about 15 mm is screwed.

The lower abutting portion 67 of the lower outer wall panel 63 is positioned so as to protrude upward in accordance with the ground ink provided in advance, and the end on the side where the ventilation opening 71 is located has a floor structure. The lower outer frame 66 is nailed to the rim 82 by abutting the upper surface of the body 5. Further, the outer wall surrounding edge member 91 is attached to the end opposite to the side where the upper contact portion 76 of the upper outer wall panel 64 projects, and the tip of the upper contact portion 76 is attached to the tip of the lower contact portion 67 of the lower outer wall panel 63. The upper outer wall frame 75 is nailed to the rim 82, and the outer wall surrounding edge member 91 is attached to the lower surface of the ceiling structure 7 without gaps. After that, the upper outer wall panel 64 and the lower outer wall panel 63 are nailed while engaging the nuts 83 over the communicating upper connecting groove portion 79 and lower connecting groove portion 72 to sequentially connect the adjacent upper outer wall panel 64 and lower outer wall panel 63. Attach.

At the time when the lower outer wall panel 63 and the upper outer wall panel 64 are mounted, the ventilation wiring opening 77 of the upper outer wall panel 64 is formed.
The upper outer wall panel 64 through the lower connecting wall opening 70 and the upper connecting wall opening 78 of the lower outer wall panel 63 and the upper connecting wall opening 64.
In addition, electric wires are wired in the lower outer wall panel 63 to perform electric wiring work.

The lower connecting portion 67 and the upper connecting portion 76 are located on the communicating lower connecting wiring opening 70 and upper connecting wiring opening 78, for example, and have a thickness of about 9.5 m.
The closed plywood 85 as a closed plate, which is a plate material of m, is cut, and the cut closed plywood 85 is nailed to each of the upper outer wall frame 75 and the lower outer wall frame 66 and closed in series.

Further, the ventilation opening 71 of the lower outer wall panel 63 is provided.
On the lower side, the lower skirting board 96 is brought into contact with the floor structure 5 and nailed to the lower outer wall frame 66 of the lower outer wall panel 63 to close the lower side of the ventilation opening 71. Further, on the upper side of the ventilation opening 71, the upper baseboard 97 is engaged with the fireproof board 68 of the lower outer wall panel 63 with the engagement stepped portion 100, so that the lower outer wall frame 66 is engaged with the lower outer wall panel 63.
The lower side of the ventilation board 96 is closed with a nail
A ventilation path 101 is provided in a slit shape between the lower step 98 and the upper step 99 of the upper skirting board 97, and a ventilation skirt 95 is provided in the outer wall structure 61, and the one-plane outer wall structure 61 is formed. Constitute. After that, a black color indicating a position for providing the partition structure 62 on the outer wall structure 61 is applied.

For example, depending on the shape of the structure 3 of the building 1, for example, the beams 3a and the columns 3b are not shown in FIGS.
As shown in the lower outer wall panel 63 and the upper outer wall panel
64 is cut and attached so as to wrap the beam 3a and the pillar 3b of the structure 3. When the ends of the lower outer wall panel 63 and the upper outer wall panel 64 attached to wrap the beams 3a and the columns 3b of the structure 3 are exposed, the exposed corner spacers 86 are attached to the exposed portions for protection.

Next, as shown in FIGS. 25 to 27,
The lower partition panel 105 is nailed and attached to the floor structure 5 and the outer wall structure 61, respectively, in accordance with the ground color provided in advance on the floor structure 5 and the outer wall structure 61. Then, about three lower partition panels 105 are connected and temporarily attached. Furthermore, a partition surrounding edge member 125 is attached to the end of the upper partition panel 106 opposite to the side where the upper contact portion 116 projects, and the tip of the upper contact portion 116 is attached to the tip of the lower contact portion 109 of the lower partition panel 105. The wall is brought into contact with the ground ink provided in advance and the nail is attached to the ceiling structure 7 and the outer wall structure 61 by nailing. Then, the nut 120 is engaged over the communicating upper connecting groove 119 and lower connecting groove 112, and the upper partition panel 106 and the lower partition panel 105 adjacent to each other are sequentially connected to each other by nailing. The partition surrounding member 125 is attached to the lower surface of the ceiling structure 7 without any gap.

Thereafter, the lower contact portion 109 and the upper contact portion 116
Is a plate corresponding to the lower connecting wiring opening 111 and the upper connecting wiring opening 118 communicating therewith, for example, a plate having a thickness of about 9.5 mm.
The cut-off fire-resistant board 122 is cut off, and the cut-off closed fire-resistant board 122 is nailed to one surface side of each of the upper partition frame 115 and the lower partition frame 108 to be closed in series. Then, the ventilation wiring opening 117 of the upper partition panel 106 and the lower partition panel 105
And the lower partition panel 10 through the lower connecting wiring opening 111 and the upper connecting wiring opening 118 of the upper partition panel 106.
5 and the upper partition panel 106 for electrical wiring.

Then, the closed fireproof board 122, which is cut in advance on the other side of the opening 111 for the lower connecting wiring and the opening 118 for the upper connecting wiring, is connected to the other surfaces of the upper partition frame 115 and the lower partition frame 108. Each side is nailed and closed in series to form a one-plane partition structure 62.

Next, a decorative panel, wallpaper, or a tile is stuck to the wall structure 10 or the ceiling structure 7 by appropriate nailing or sticking, plastered, or tatami is laid to finish the interior. Complete the renovation by installing lighting fixtures, outlets, gas faucets, faucets, unit baths, toilet seats, system kitchens and other appliances.

Next, the operation of the above embodiment will be described with reference to the drawings.

An experiment was conducted on the sound insulation characteristics of the floor structure 5.

As an experimental method, as shown in FIGS. 35 to 37, a concrete flat plate 131 having a vertical dimension of 2700 mm, a horizontal dimension of 4200 mm and a thickness of 150 mm has a width of 260 mm and a thickness of 150 mm. 90
The wooden frame 133 is fixed to the wall 132 with an anchor bolt (not shown) so that the width of the square bar 132 is in the height direction. Then, the floor panel structure 15 to which the support leg 31 is attached with a gap of approximately 15 mm from the wooden frame 133 is supported.
In order not to cover the engaging portions of the through portions 32 of the 31, they are laid with an interval of 15 mm between them and the adjacent floor panel structure 15. Here, the floor panel structure 15 is a sound insulation sheet 17 having a thickness of 3 mm between a pair of OSB plates 16 and 16 having a thickness of 9.5 mm as a processing plate 16 (a product of Nippon Kokan Light Steel Co., Ltd.). Name: Sound Shield NK (SS-F
F9S-NO)) is sandwiched integrally with an α-olefin-based adhesive (trade name: Bond Tack, manufactured by Unishi Co., Ltd.), and is a flat plate having a length of 1688 mm, a width of 600 mm, and a thickness of 22 mm. Was used.
At the time of installation of the floor panel structure 15, one cut in the longitudinal direction so as to have a length of 767 mm was used. For adjusting the gap on the vertical dimension side of the floor panel structure 15, one having a width dimension cut to 440 mm was used.

Then, an OSB board having a length of 1,820 mm, a width of 910 mm, and a thickness of 9.5 mm is laid on the upper surface of the floor panel structure 15 as a laminating plate 38,
Furthermore, the length dimension is 1810 mm, the width dimension is 303 mm,
The floor structure 5 was formed by nailing a decorative panel material 39 having a thickness of 12 mm for finishing. A concrete plate 131 provided with the floor structure 5 was supported on a concrete base 136 with a width of 120 mm via a rubber sheet 135 formed of neoprene on the periphery, and a test piece was set.

Further, the measurement of the sound insulation characteristics was performed according to JIS-A-1.
In accordance with 418 "Method of measuring floor impact sound level at building site", three hitting points were measured and five downstairs sound receiving points were measured. The results are shown in FIGS. 38 and 39.

From the results shown in FIGS. 38 and 39, especially when the center frequency is as low as 63 Hz, FIG.
38, the sound pressure level is high when the floor panel structure is made of plywood, but the sound pressure level is low in the floor panel structure 15 using the OSB plates 16, 16 shown in FIG. It can be seen that characteristics can be obtained.

Next, the strength of the floor panel structure 15 using the OSB plates 16 and 16 and the one using a plywood that has been frequently used in place of the OSB plates 16 and 16 are described in JIS-A-. 1
A comparative study was conducted based on a 408 three-point bending test. In addition,
The size of each specimen is 70 cm in length and 6 in width.
The test was performed three times using a No. 2 sample having a length of 0 cm and a No. 3 sample having a length of 50 cm and a width of 40 cm. The results are shown in FIGS.

From the results shown in FIG. 40 to FIG. 43, a certain degree of bending load was applied to the case of No. 2 shown in FIG. 40 and the case of No. 3 shown in FIG. At this point, cracking rapidly progresses, and the bending load decreases sharply. On the other hand, in the case where the OSB plates 16 and 16 were used, a large bending load and a large amount of deflection were obtained in both the case of No. 2 shown in FIG. 42 and the case of No. 3 shown in FIG. It can be seen that a strong panel structure can be obtained, and that the cracking does not proceed at a stretch and the bending load is not suddenly reduced.

As described above, according to the above-described embodiment, the sound insulating sheet 17 having a large sound insulating property is provided between the pair of OSB plates 16 having a large strength by a flat processing plate containing a wood chip and a binder. Since the floor structure 5 is configured using the floor panel structure 15 integrally bonded and formed, the structure can be handled in the same manner as conventional plywood with a simple laminated structure, and even in a structure having high manufacturability and handleability, In particular, in a structure in which an impact is easily propagated, such as the reinforced concrete building 1, even if an impact or vibration is applied to the decorative plate 39 installed on the upper surface of the floor panel structure 15, it does not propagate to the structure of the building 1. Therefore, sound insulation can be ensured, and it is sufficient to simply cut even a different shape, so that the construction period can be shortened, the cost can be reduced, and the workability can be improved.

Further, the laminated structure of the sandwich structure in which the sound insulating sheet 17 is sandwiched between the pair of OSB plates 16, 16 improves the strength and the load resistance.
Can be used, and the manufacturability and handleability are improved, and the workability can be improved.

Since the OSB plate 16 having high strength and substantially no deformation such as warpage is used, the floor panel structure 15 having a laminated structure in which the sound insulating sheet 17 is integrally held can be easily formed, and the productivity is improved. As well as improve workability.

In the above embodiment, a pair of O
Although the sound insulation sheet 17 was sandwiched between the SB plates 16 and 16,
For example, the sound insulation sheet 17 is integrally adhered to one surface side of one OSB board 16, the sound insulation sheet 17 side is installed facing upward, and a decorative plate material 39 is spread over the sound insulation sheet 17, or a discarded bonding plate 38.
The decorative board material 39 may be spread after the spread. Alternatively, the sound insulation sheet 17 may be installed with the side facing downward, and the discarded bonding board 38 and the decorative board 39 may be similarly spread. In addition, 1
The sound insulation sheets 17 and 17 may be adhered to both sides of a single OSB plate 16.

Although the discarded bonding plate 38 is used, the decorative plate material 39 may be directly laid.

The building 1 is not limited to an apartment house made of reinforced concrete, but may be used for new construction or remodeling of any building, such as a detached house, which is a conventional wooden house having columns and beams. You may.

Further, the ceiling, walls, etc. are not limited to the panel structure of the above-described embodiment, and may have any panel structure, or may be constructed by any method without being limited to the panel structure.

The OSB plate 16 is not limited to one using a phenol resin. It is preferable to use a phenol resin because the amount of formaldehyde released is very small and negligible.

[0097]

According to the floor panel for a building according to the first aspect of the present invention, a sound insulating sheet having sound insulating properties is integrally held between a pair of processing plates containing a wood chip and a binder, so that workability is improved. Even if it is a processed plate, the bending strength is greatly reduced when the thickness dimension is reduced to some extent,
By forming a plate with a simple sandwich structure with a sound insulation sheet interposed, it is possible to improve load-bearing capacity, manufacturability and workability, and at the same time greatly reduce noise, and use a processed plate as a floor plate of a building Can be.

According to the floor panel for a building according to the second aspect, in addition to the effect of the floor panel for a building according to the first aspect,
Since OSB is used, which has a high strength and does not warp and has stable characteristics even in an area where climate change is large, processing can be easily performed, manufacturability can be improved, and workability can be improved.

According to the floor structure of the building according to the third aspect,
2. A sound-insulating member having a sound-insulating property, which is grounded to the floor of a building at the lower end thereof, is provided on a mounting portion at an upper end portion of the supporting member. Alternatively, the floor panel for a building described in 2 is mounted and fixed to be supported away from the floor of the building, and the floor panel is installed on the surface side of the floor panel. Therefore, noise can be reduced with a simple structure.

[Brief description of the drawings]

FIG. 1 is a sectional view of a floor structure of a building showing an embodiment of the present invention.

FIG. 2 is a sectional view showing one living space of the building.

FIG. 3 is a sectional view showing one living space of the building.

FIG. 4 is a partially cutaway plan view showing a situation in which a floor structure is formed on a building explaining the rebuilding process.

FIG. 5 is a plan view showing a state in which a ceiling structure is formed on a building for explaining the rebuilding process.

FIG. 6 is a cross-sectional view showing the ceiling structure.

FIG. 7 is a plan view showing the same underlying panel.

FIG. 8 is a sectional view of the same.

FIG. 9 is a plan view showing the ceiling panel structure.

FIG. 10 is a cross-sectional view in which a part of the same is cut away.

FIG. 11 is a plan view showing a state in which an outer wall structure is formed on a building explaining the remodeling process.

FIG. 12 is a sectional side view of the same.

FIG. 13 is a plan view of the same.

FIG. 14 is a plan view showing the outer wall structure at the beam portion.

FIG. 15 is a cross-sectional view showing the outer wall structure at the beam portion.

FIG. 16 is an enlarged view of the same beam part.

FIG. 17 is a plan view showing the upper and lower outer wall panels.

FIG. 18 is a cross-sectional view in which a portion of the same is cut away.

FIG. 19 is a sectional side view of the same.

FIG. 20 is a plan view showing the same upper outer wall panel.

FIG. 21 is a cross-sectional view with a part cut away from the above.

FIG. 22 is a sectional side view of the same.

FIG. 23 is a partially cutaway perspective view showing an outer wall surrounding edge member attached to the upper and lower outer wall panels.

FIG. 24 is a partially cutaway perspective view showing the ventilation baseboard attached to the upper and lower outer wall panels.

FIG. 25 is a plan view showing a state in which a partition structure is formed in a building explaining the rebuilding process.

FIG. 26 is a plan sectional view of the same.

FIG. 27 is a sectional side view of the same.

FIG. 28 is a plan view showing the upper and lower partition panel.

FIG. 29 is a cross-sectional view partially cut away of the same.

FIG. 30 is a sectional side view of the same.

FIG. 31 is a plan view showing the upper partition panel.

FIG. 32 is a cross-sectional view partially cut away from the above.

FIG. 33 is a sectional side view of the same.

FIG. 34 is a partially cutaway sectional view showing the partition surrounding edge member attached to the upper outer wall panel.

FIG. 35 is a partially cutaway plan view showing the experimental apparatus for measuring the sound insulation characteristics of the above.

FIG. 36 is a sectional side view of the same.

FIG. 37 is a sectional view of the upper end surface.

FIG. 38 is a graph showing sound insulation characteristics in a lightweight floor impact sound measurement when a floor panel structure in which a sound insulation sheet is sandwiched between OSB plates is used.

FIG. 39 is a graph showing sound insulation characteristics in a lightweight floor impact sound measurement when a floor panel structure in which a sound insulation sheet is sandwiched between plywoods is used.

FIG. 40 is a graph showing strength characteristics in a three-point bending test when a floor panel structure having a size of No. 2 with a sound insulation sheet sandwiched between plywood is used.

FIG. 41 is a graph showing strength characteristics in a three-point bending test when a floor panel structure having a size of No. 3 in which a sound insulating sheet is sandwiched between plywood is used.

FIG. 42 is a graph showing strength characteristics in a three-point bending test when a floor panel structure having a size of No. 2 in which a sound insulation sheet is sandwiched between OSB plates is used.

FIG. 43 is a graph showing strength characteristics in a three-point bending test when a floor panel structure having a size of No. 3 in which a sound insulating sheet is sandwiched between OSB plates is used.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building 5 Floor structure 15 Floor panel structure which is a floor panel for a building 16 OSB board as a processing board 17 Sound insulation sheet 31 Support leg as a support member 36 Mounting part

Claims (3)

[Claims] 1. A pair of flat processed plates containing a wood chip and a binder, and a floor plate is installed on one of the surfaces, and a sound insulation having sound insulation characteristics integrally held between the processed plates. A floor panel for a building, comprising: a sheet; 2. The floor panel for a building according to claim 1, wherein the processing plate is OSB. 3. A floor panel for a building according to claim 1 or 2, a floor plate installed on a surface side of the floor panel for the building, and a sound insulation characteristic that a lower end is grounded to a floor of the building. A support member to which a sound insulating member is attached and which has a mounting portion for mounting and fixing the floor panel for the building at an upper end portion and supports the floor panel for the building away from the floor of the building. The floor structure of a building characterized by the following.