JP2000303610A - Highly damping floor construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further reduce the propagation of impact sound to floor in downstairs rooms in a floor construction of a building. SOLUTION: In a highly damping floor construction, neighboring floor panels 11, 11 are coupled through a damping member 32 placed between them, a floor surface material 24 among each floor panel 11 is constituted by adhering and fixing a wooden floor finish material 24A to a floor backing member 24B by using a pressure sensitive adhesive double coated tape 41 using a foamed body as a supporting member, cradling 62 for ceiling are attached through elastic vibrationproof members 65 to a vertical coupling board 51 attached between neighboring floor joists 23 among each floor panel 11, and a ceiling surface material 61 is attached to the cradlings 62 for ceiling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-damping floor structure used for a building.

[0002]

2. Description of the Related Art Conventionally, as a high damping floor structure used for a building, as described in Japanese Patent Application Laid-Open No. 3-69746, an outer frame is formed by a plurality of floor girders, and a plurality of floors are provided between opposing floor girders. In a floor structure that spans small beams, a ceiling suspension tree parallel to the floor beams is installed between the opposing floor girders, and the ceiling surface material is fixed to the lower surface of the ceiling suspension tree, and vibration is damped on the ceiling suspension tree Some are provided with weights.

According to the prior art, the vibration of the floor surface material propagates to the ceiling surface material via the floor girders and the ceiling suspension tree without passing through the floor beam, and the path length of the solid propagation path of the vibration is extended. And the passage cross-sectional area is narrowed, so that the propagation of vibration (lightweight floor impact sound) to the lower floor room when a lightweight object falls on the floor can be reduced. In addition, the vibration of the ceiling suspension tree is damped by the presence of the damping weight, and the entire vibration of the floor structure can be attenuated. Can also be reduced.

[0004]

However, in the prior art, although the propagation of floor impact noise can be reduced to a certain level, there is a limit in further improving the sound insulation.

As shown in FIG. 13, a plurality of floor structures 1 are installed adjacent to each other as a high damping floor structure.
When a floor material is provided above the gripping material 2 and a ceiling material 4 on the lower floor is provided below the floor material 3, the adjacent floor structures 1, 1 are connected via a plywood 5. It is conceivable to improve the vibration damping of the floor. When the beam 2 is composed of the wooden floor finishing material 2A and the floor base material 2B in each floor structure 1, the floor finishing material 2A and the floor base material 2B are bonded and fixed with an elastic adhesive. Is also conceivable. In addition, each floor structure 1
Of the vertical connecting plate 6 is stretched and mounted between the adjacent gripping members 2, 2. Attach rim 8
It is also conceivable to attach the ceiling panel 4 to the lower surface of the ceiling margin 8. Further, a vibration damping weight 9A is attached to the ceiling edge 8 on the ceiling surface material 4 in each floor structure 1, and a sound absorbing material 9B such as rock wool is loaded between the adjacent gripping materials 2 and 2. It is also possible to do.

However, even in the high damping floor structure shown in FIG. 13, there is a limit to improvement in sound insulation, and further improvement in sound insulation is required.

An object of the present invention is to provide a floor structure of a building,
Another object of the present invention is to further reduce the propagation of floor impact noise to lower floors.

[0008]

According to the first aspect of the present invention, there is provided a high damping floor comprising a floor member provided on an upper portion of a beam member and a ceiling member member on a lower floor provided below the beam member. In the structure, the floor surface material is formed by bonding and fixing a wooden floor finishing material to a floor base material using a double-sided adhesive tape having a foam as a support, and the back surface of the floor finish material or the front surface of the floor base material , In the direction parallel or perpendicular to the long side of the floor finish,
The floor finishing material is adhered to the floor base material by applying a double-sided adhesive tape substantially in parallel with an interval of 50 mm, and a vertical connecting plate is inserted between adjacent beam members and attached. A ceiling edge is attached to a substantially vertical side surface via an elastic vibration isolator, and a ceiling surface material is attached to a lower surface of the ceiling edge.

According to a second aspect of the present invention, a plurality of floor structures are provided adjacent to each other, and each floor structure has a floor surface material provided above a beam material, and a lower floor ceiling surface provided below the beam material. Adjacent floor structures are connected via a damping material provided between them in a high damping floor structure provided with a material, and a double-faced adhesive tape in which a floor material is a foam as a support in each structure A wooden floor finishing material is adhered and fixed to the floor base material by using, the direction parallel or perpendicular to the long side of the floor finishing material, on either the back surface of the floor finishing material or the surface of the floor base material At 150-350m
A double-sided adhesive tape is attached substantially in parallel with an interval of m and the floor finishing material is adhered to the floor base material.

According to a third aspect of the present invention, a plurality of floor structures are provided adjacent to each other, and each floor structure has a floor surface material provided above a beam material, and a lower floor ceiling surface provided below the beam material. In a high damping floor structure provided with members, adjacent floor structures are connected via damping members provided therebetween, and a vertical connecting plate is inserted between adjacent beam members in each structure. Attachment, a ceiling edge is attached to a substantially vertical side surface of the vertical connecting plate via an elastic vibration isolator, and a ceiling surface material is attached to a lower surface of the ceiling edge.

According to a fourth aspect of the present invention, a plurality of floor structures are installed adjacent to each other, and each floor structure has a floor surface material on an upper part of a beam, and a ceiling surface of a lower floor below the beam. In a high-damping floor structure provided with materials, adjacent floor structures are connected via a damping material provided therebetween, and a floor surface material is a foam-supported surface between each structure. A wooden floor finish is bonded and fixed to the floor substrate using adhesive tape, and is parallel or orthogonal to the long side of the floor finish on either the back surface of the floor finish or the surface of the floor substrate. 150 to 350 in the direction
Attach double-sided adhesive tape almost in parallel with a gap of mm and glue the floor finishing material to the floor base material, and attach and attach the vertical connecting plate between adjacent beam members in each structure, A ceiling edge is attached to a substantially vertical side surface of the vertical connecting plate via an elastic vibration isolator, and a ceiling surface material is attached to a lower surface of the ceiling edge.

The present invention described in claim 5 is the first and second aspects of the present invention.
Or in the present invention according to any one of 4, the floor covering material and the floor finishing material of the floor material are further applied between the double-sided adhesive tape and the double-sided adhesive tape to be attached to both, so as to be thicker than the double-sided adhesive tape. It is made to adhere by sandwiching the applied adhesive.

The present invention described in claim 6 is the first and third aspects of the present invention.
Alternatively, in the invention according to any one of the first to fourth aspects, the vertical connection plates are juxtaposed so as to form a plurality of rows between adjacent beam members.

The present invention described in claim 7 is the first and third aspects of the present invention.
In the present invention according to any one of the first to fourth aspects, a vibration damping weight is further attached to the ceiling edge.

The present invention according to claim 8 provides the invention according to claims 1 to 7
In the present invention according to any one of the above, further, a sound absorbing material is loaded between adjacent beam members above the ceiling face material.

[0016]

According to the present invention, the following operations are provided. The foam is used as a support at an interval of 150 to 350 mm in a direction parallel or perpendicular to the long side of the floor finish on either the back surface of the floor finish or the surface of the floor base material constituting the floor facing material. Since the double-sided adhesive tape is applied and the floor finishing material is bonded to the floor base material, the foam itself also has a buffering effect, and it is easy to bend when the non-bonded part of the finishing material receives an impact, and it has a drop impact noise To reduce the generation of impact noise and its propagation downstairs. This allows
It is possible to further reduce the propagation of floor impact noise to lower floor rooms.

According to the first, third and fourth aspects of the present invention, the following effects are obtained. A vertical connecting plate is inserted and attached between adjacent substantially parallel beam members, and a ceiling edge is sandwiched between an almost vertical side surface of the vertical connecting plate and a ceiling edge by an elastic vibration isolator. Because it is attached to the vertical connecting plate, even if a person walks on the floor or drops an object and the floor vibrates, this vibration is almost equal to the heavy floor impact sound and the lightweight floor impact sound. Absorbed in
The floor structure is not easily transmitted to the ceiling margin and has excellent vibration and sound insulation. One construction method for providing such a floor structure is to attach a ceiling rim to which an elastic vibration isolator is attached to a substantially vertical side surface of a vertical connecting plate, or to attach a vertical elastic plate to an almost vertical side surface. If the ceiling edge is attached to the connecting plate, or the ceiling edge is pressed against the side surface of the vertical connecting plate with the elastic vibration isolating material interposed therebetween, and the ceiling edge is attached to the vertical connecting plate together with the elastic vibration isolating material, the construction is easy. In addition, since the ceiling edge is attached to the substantially vertical side surface of the vertical connection plate, the height of the lower surface of the vertical connection plate is set higher than the lower surface of the beam material by the height of the ceiling edge, and the vertical connection plate is By attaching to the beam, the height of the ceiling panel attached to the lower surface of the ceiling edge can be provided immediately below the beam. In other words, the ceiling panel can be attached at almost the same height as when the ceiling panel is directly attached to the conventional beam.
Thereby, the propagation of the floor impact sound to the lower floor room can be further reduced.

[0018] By vertically mounting the vertical connecting plate between adjacent substantially parallel beams, the beams can be prevented from falling down, and at the same time, the connection between the beams can be strengthened and the rigidity of the floor increases. . When the rigidity of the floor is increased in this way, particularly, the impact resistance of the floor against heavy floor impact noise is improved, and the floor is less likely to vibrate. Thereby, the propagation of the floor impact sound to the lower floor room can be further reduced.

According to the second, third and fourth aspects of the present invention, the following operations are provided. Since the adjacent floor structures are connected via the damping material disposed therebetween, the floor impact sound generated in one floor structure is attenuated by the damping material, and the other adjacent floor structure is damped. Floor impact noise that propagates to the body can be reduced. This allows
It is possible to further reduce the propagation of floor impact noise to lower floor rooms.

According to the present invention, the following effects are obtained. 150-350m foam double-sided adhesive tape on floor base material
Apply the elastic adhesive between the double-sided adhesive tape and the double-sided adhesive tape thicker than the double-sided adhesive tape, and lay the floor finishing material on it, so the floor finishing material is a foam with initial adhesive strength The floor finishing material is adhered to the floor base material with a predetermined spacing by double-sided adhesive tape, and the elastic adhesive is deformed to the thickness of the double-sided adhesive tape, and at this thickness, it exhibits adhesive strength and elasticity, and finishes the floor It prevents the propagation of light impact noise and the like generated on the surface of the material, resulting in excellent sound and sound insulation performance.

According to the present invention, the following effects are obtained. Since the above-described vertical connecting plates, which are attached between the substantially parallel beam members adjacent to each other and increase the rigidity of the floor, are arranged in a double row, the rigidity of the floor can be further increased and the earthquake resistance of the floor can be further improved.

According to the present invention, the following effects are obtained. Since the damping weight is attached to the ceiling edge and it is heavy, even if a person walks on the floor or drops an object on the floor and the beam vibrates, it will pass through the elastic vibration isolator The mounted field support is less likely to vibrate.

According to the present invention, the following effects are obtained. Since the sound absorbing material is loaded on the ceiling surface material of the lower floor inside the floor, the floor impact sound passing through the inside of the floor can be absorbed and the sound insulation can be improved.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing a unit building, FIG. 2 is a perspective view showing an example of a high-damping floor structure partly cut away, FIG. 3 shows a unit building, and FIG. FIG. 4B is a perspective view showing a part of the building, FIG. 4B is a side view showing a vibration damping material between units, FIG. 4 is a perspective view showing an adjacent building unit, FIG. Shows a mounting procedure of the vibration damping material, (A) is a side view showing a state before mounting, (B) is a perspective view showing a state after mounting, FIG. 7 is a side view showing another mounting structure of the vibration damping material, 8 is a plan view showing a mounting position of the damping material, FIG. 9 shows a floor material, (A) is a perspective view in which a double-sided adhesive tape is stuck along the width direction of the floor finishing material,
(B) is a perspective view in which a double-sided adhesive tape is attached along the longitudinal direction of the floor finishing material, FIG. 10 shows a mounting structure of the ceiling surface material, and (A) shows a part of the floor structure in a cutaway manner. FIG. 11 shows a perspective view, FIG. 11B shows a side view, FIG. 11 shows an attached state of a vibration damping weight, FIG. 11A is a plan view, FIG. 11B is a sectional view taken along line BB of FIG. FIG. 4A is a cross-sectional view taken along the line CC.
FIG. 12 is a side view showing a modification of the main part of FIG. 10, and FIG. 13 is a perspective view showing a vibration damping floor structure partly cut away.

In the unit building 1, as shown in FIG. 1, a lower-floor building unit 10A is installed on a foundation 2, an upper-floor building unit 10B is mounted on a lower-floor building unit 10A, and Roof unit 10C on top
Attached and built.

Here, the building units 10A and 10B are:
The wall panel 12 is erected on the outer edge of the floor panel 11 (floor structure) (FIG. 4).

As shown in FIG. 2, the floor panel 11 has a girder-side floor girder 21 and a wife-side floor girder 22 which are framed in a rectangular shape, and a plurality of substantially parallel beams between the opposing floor girder 22. The floor beams 23 are bridged to form a floor framework. The floor panel 11 has a floor panel 24 provided above the floor frame and a ceiling panel 25 provided below the floor frame. In FIG. 2, reference numeral 26 denotes a head connection.

However, since the floor panel 11 constitutes a high vibration-damping floor structure, (A) the adjacent floor panel 11
(B) a high-damping finish structure of the floor panel 24, (C) a high-rigidity high-damping structure of the floor panel 11, and (D) a sound-absorbing ceiling structure of the floor panel 11. (FIG. 2).

(A) High Vibration Suppression Connection Structure of Adjacent Floor Panels 11 (FIGS. 2, 3 to 8) In the unit building 1, adjacent upper floor building units 10
The damping material 32 is attached between the floor girders 21 of the floor panels 11 adjacent to each other in B and 10B by adjusting the gap with the spacer 31. That is, the floor panels 11, 11 of the adjacent upper floor building units 10B, 10B are shown in FIG.
As shown in FIG. 4, a portion without the wall panel 12 is connected via a damping material 32 disposed therebetween. Damping material 32
Are arranged in a plurality in the longitudinal direction of the floor panel 11, but may be arranged continuously. The total length of the damping material 32 is 30 to 80 times the longitudinal length of the floor panel 11.
The length should occupy%.

As shown in FIG. 5, the vibration damping material 32 has a thickness of 1 to 3 mm between a plurality of ultraviolet-polymerized acrylic resin plates (or butyl rubber sheets) 32A and 32A having a thickness of 1 to 3 mm. And a plywood mounting plate 32 having a thickness of about 3 mm on both sides.
C is provided. The laminated structure of the vibration damping material 32 is 3
Layer structure (two layers of resin plate 32A and one layer of steel plate 32B)
9-layer structure (5 layers of resin plate 32A and 4 layers of steel plate 32B)
It is good to do.

As shown in FIG. 6, a spacer 31 is attached to one of the floor girders 21, and the damping material 32 is inserted between the floor girders 21, 21. Then, the mounting plate 32 </ b> C is fixed to the floor girder 21 with the nail 33. In addition, the interval direction of the floor girders 21 and the laminating direction (overlapping direction) of the damping material 32 are made to coincide with each other, so that the vertical vibration of the floor panel 11 corresponds to the shear deformation of the damping material 32.

As shown in FIG. 7, the vibration damping material 32 is fixed by screws 34 while being inserted between the floor girders 21, 21 of the adjacent floor panels 11, 11. Is also good. The resin 34 is supplied from one of the floor girders 21 to the damping material 32.
Of the other floor girders 2 through the mounting plates 32C, 32C on both sides of the
1

As shown in FIG. 8, the damping material 32 is preferably provided at a position corresponding to the antinode of vibration of the floor girders 21 in the longitudinal direction of the floor girders 21, as shown in FIG.
From the end of the floor girder 21 in the longitudinal direction of the floor girder 2
It is preferable that a position 1/4 apart from the entire length of 1 is set as the mounting center.

In the practice of the present invention, the damping material 32
Is a plate-like body formed of any of metal, synthetic resin, synthetic rubber, natural rubber, wood, gypsum board, or a laminate obtained by laminating at least any two of these plate-like bodies, Alternatively, it may be one in which an adhesive tape is stuck on both sides of the laminate, or one in which an adhesive is injected into an elastic cylindrical body.

(B) High-damping finishing structure of the floor panel 24 (FIGS. 2 and 9) In the floor panel 11 of the upper building unit 10B, the floor panel 2
4 is formed by bonding and fixing a wooden flooring material 24A to a flooring material 24B using a double-sided adhesive tape 41 using a foam as a support, and the back surface of the flooring material 24A or the surface of the flooring material 24B. Affixing the double-sided adhesive tape 41 substantially in parallel with a spacing of 150 to 350 mm in a direction parallel or perpendicular to the long side of the floor finishing material 24A, and bonding the floor finishing material 24A to the floor base material 24B. It is composed.

Here, the floor finishing material is usually a rectangle having a fixed width and a fixed length. As one method, as shown in FIG. 9A, the double-sided adhesive tapes 41, 41, 41,... Are spaced at a distance L of 150 to 350 mm in a direction perpendicular to the long side of the floor finish material 24A, that is, in the width direction. And stick this surface to the floor substrate. Alternatively, as shown in FIG. 9 (B), the double-sided adhesive tapes 41, 41 are attached to the back surface of the floor finishing material 24A at an interval L of 150 to 350 mm in a direction parallel to the long side thereof, and the release paper 42 Peel off the adhesive layer 4
3 is exposed and bonded to a floor base material.

Another method is to apply a double-sided adhesive tape in a direction parallel or perpendicular to the long side of the floor finishing material to be laid.
It may be attached to a floor base material in advance at an interval of 0 to 350 mm in parallel, and a floor finishing material may be bonded thereto.

According to the present invention, the floor finishing material is easily bent when subjected to an impact to reduce the apparent rigidity, thereby facilitating the absorption of a drop impact, thereby reducing the generation of an impact sound and the propagation to the downstairs. Let it. In order to make the flooring material easy to bend, the double-sided adhesive tape is placed at a certain interval, that is, 150 to
At this time, the floor finishing material is fixed to the floor base surface at a distance of 350 mm, and the floor finishing material is bent in the space where the floor finishing material is not fixed.

Therefore, it is more effective to apply the double-sided pressure-sensitive adhesive tape in a direction perpendicular to the width of the floor finishing material, that is, in the width direction than in the direction parallel to the long side direction of the floor finishing material, since the bending occurs.

Further, between the double-sided pressure-sensitive adhesive tapes, an air layer formed between the floor finishing material and the floor base material reduces the propagation of the impact sound due to the falling object to the floor base material. Therefore, it is considered that the larger the distance between the double-sided adhesive tapes is, the better, but the following points need to be considered.

That is, (1) Resonance of the floor finishing material is considered in a portion not adhered to the floor base material, and the natural frequency shifts to a lower frequency side when the interval is theoretically increased. Since it is necessary to reduce the sound of the floor impact sound in the range of 250 to 500 Hz, the distance between the double-sided adhesive tapes is 350 mm.
Must be avoided.

(2) When the tapping machine is installed for measurement, the floor finishing material is bent by its own weight and comes into contact with the floor base surface. In order to perform the measurement in accordance with JIS A 1418, the attachment interval cannot exceed 350 mm in view of the size of the tapping machine.

From the above, the sticking interval of the double-sided adhesive tape is limited to 150 to 350 mm, preferably 200 to 350 mm.
It is 300 mm.

On the other hand, the wooden floor finishing material has a thickness of 6 to 20.
mm products are usually commercially available. The effect of absorbing the impact sound can be expected by any of the floor finishing materials according to the present invention. it can.

Specifically, a 9 mm thick flooring board is used as the floor finishing material 42A, and a 9 mm thick high specific gravity sound insulating sheet made of a resin sheet mixed with metal is used as the floor covering material 42B. It was adhered with an 8 mm double-sided adhesive tape 41.

The double-sided pressure-sensitive adhesive tape used in the present invention has a foam as a base material. Examples of the base material include synthetic rubber, polyolefin resin and urethane resin. May be any of closed cells, open cells, and a mixed structure of closed cells and open cells, but a urethane-based resin foam having closed cells is particularly preferable because of its better sound insulation.

The compression hardness, which is one of the properties of the foam, is 0.01 to 2 kgf / c in view of the ability to follow rough surfaces and uneven surfaces.
It is considered that about m ² is preferable. If the thickness of the foam is too thin, it cannot follow the uneven surface of the base material, and if it is too thick, the floor surface becomes high, which may hinder the opening and closing of the door. Therefore, the thickness is suitably 0.3 to 2 mm.

The pressure-sensitive adhesive of the double-sided pressure-sensitive adhesive tape may be one containing a base polymer such as acrylic, natural rubber, synthetic rubber, or silicone as a main component, but has excellent durability and stains the vicinity during handling. Acrylic pressure-sensitive adhesives with a low content are particularly preferred. In addition, the adhesive has a glass transition temperature of 0 ° C. or less and a thickness of 50 to 100 in consideration of adhesiveness to rough wood and workability in a cold season.
μm is preferred.

The double-sided pressure-sensitive adhesive tape can be easily adjusted at the time of construction, for example, as described in Japanese Patent Application Laid-Open No. 9-22784.
It is preferable that the pressure-sensitive adhesive layer is laminated so as to partially cover the surface of the pressure-sensitive adhesive layer with a non-tacky or slightly tacky masking member such as the pressure-sensitive adhesive type pressure-sensitive adhesive sheet described in Japanese Patent Publication No. This is because even if the adhesive surface is exposed, it is possible to insert the floor finishing material in a sloping manner, so that the workability is excellent.

A release paper is usually laminated on the double-sided adhesive tape until it is used. As the release paper, a paper obtained by applying a filler material or the like to kraft paper, semi-bleached paper, high-quality paper, glassine paper, or the like, and then releasing with a silicone resin is generally used. If the basis weight of the paper is too small, the paper may be torn when peeling off the release paper, so that the paper weight is suitably from 50 to 150 g / m ² . The thickness is preferably 70 to 150 μm so that the end can be easily picked up with a fingertip or a nail.

In the practice of the present invention, the floor material 2
The floor finishing material 24A and the floor base material 24B of No. 4 are bonded between the double-sided pressure-sensitive adhesive tape 41 and the double-sided pressure-sensitive adhesive tape 41 to be bonded to each other with an adhesive applied more thickly than the double-sided pressure-sensitive adhesive tape 41. May be.

(C) High rigidity and high vibration damping structure of floor panel 11 (FIGS. 2, 10 to 12) In the floor panel 11 of the upper floor building unit 10B, FIG.
0, as shown in FIG. 11, adjacent floor girders 21 and floor girders 2
3. The vertical connecting plate 51 is attached between the floor beams 23 and the floor beams 23. In this embodiment, the floor girders 2
1. Vertical connecting plates 51 are juxtaposed at a plurality of positions (three positions) in the longitudinal direction of the floor beam 23 so as to form a plurality of rows (three rows).

In the floor panel 11, the vertical connection plate 51 is inserted between substantially parallel beams so that the floor panel 1
1 indicates that the beam members such as the girder-side floor girders 21 and the small floor beams 23 will not fall down, and at the same time, the connection between the girder-side floor girder 21 and the floor small beams 23 will be strengthened, and the floor panel 11 Increases rigidity. When the rigidity of the floor panel 11 is increased in this way, the impact resistance of the floor particularly against heavy floor impact noise is improved, and the floor is less likely to vibrate.

Reference numeral 25 denotes a ceiling panel constituting the ceiling,
The ceiling panel 25 includes a gypsum board ceiling panel 61 having a thickness of about 12.5 mm, and a ceiling edge 62 attached to the upper surface of the ceiling panel 61. In addition, the ceiling bezel 62 has a bezel material (a long wooden body having a cross section of about 31 mm × about 43 mm) 62A having a long side horizontal and a thickness of about 9 mm on this.
The long edge of the field edge support (a long wooden body having a cross section of approximately 38 mm × approximately 89 mm) 62C is vertically attached via a spacer 62B of plywood of 62 mm, and the ceiling panel 61 is a lower surface of the field edge 62A. Attached to.

The mounting structure in which the ceiling panel 25 is mounted on the floor panel 11 is such that a horizontal piece (ceiling edge side mounting part) 63A of an L-shaped connection metal fitting (ceiling edge side connection metal fitting) 63 is provided on the upper surface of the field edge receiver 62C. Attached, vertical connecting plate 51
A plate-like connecting metal fitting (vertical connecting plate-side connecting metal fitting) 64 is attached to a substantially vertical side surface of the vertical connecting member 63. The vertical piece 63B of the connecting metal fitting 63 on the field edge receiver 62C side and the connecting metal fitting 64 on the vertical connecting member 51 side are attached. With the elastic vibration isolator 65 interposed therebetween,
2C is connected to the vertical side surface 51A of the vertical connection plate 51,
The ceiling panel 25 is attached to the vertical connecting plate 51 of the floor panel 11.

At this time, the height of the lower surface of the vertical connecting plate 51 is higher than the lower surfaces of the beam members such as the girder-side floor girders 21, the girder-side floor girders 22, and the floor small beams 23 by the height of the ceiling edge 62. Is in position.

Because of this, the ceiling panel 61 attached to the lower surface of the ceiling margin 62 is located immediately below the beam members such as the girder floor girders 21, the girder floor girders 22, and the floor beams 23. Is provided. That is, the ceiling surface material 6 is directly added to the conventional beam material.
The ceiling panel 61 is attached at almost the same height as when the first member 1 is attached.

In the ceiling edge 62, the long side of the edge receiving member 62C having a rectangular cross section is vertical, so that the ceiling edge 62 is unlikely to bend. Further, since the edge material 62A is attached to the lower surface of the edge receiving member 62C with the long side of the rectangular cross section being horizontal, the lower surface of the edge material becomes wider, and the ceiling panel 61 can be easily attached to this lower surface. . In other words, it is a good ceiling edge having less material than having a large cross section and having almost the same performance as the enlarged ceiling edge.

Reference numeral 66 denotes a vibration damping weight of a lead lump having a weight of 3.38 kg.
It is attached to the upper surface of 2C.

When the damping weight 66 is mounted on the edge support 62C as described above, the ceiling edge 62 becomes heavier, and the edge receiver 62C is less likely to vibrate, thereby reducing heavy floor impact noise.

As shown in FIG. 12, the elastic vibration isolator 65 may be directly attached to the vertical connecting plate 51 without attaching the flat mounting bracket 64 to the vertical connecting plate 51.

In the embodiment of the present invention, the elastic vibration isolating material has elasticity such as rubber or soft rigid resin, and the ceiling edge is attached to the vertical connecting plate with the elastic vibration isolating material interposed therebetween. Thus, even if the vertical connecting plate vibrates, the elastic vibration isolating material absorbs the vibration and the ceiling edge hardly vibrates.

(D) Sound Absorbing Ceiling Structure of Floor Panel 11 (FIG. 2) In the floor panel 11 of the upper floor building unit 10B,
Above the ceiling panel 25 (ceiling panel 61), between the adjacent floor girders 21 and 23, and between the floor girders 23 and 23,
The sound absorbing material 71 is loaded. As the sound absorbing material 71, glass wool alone, a laminate of glass wool and rock wool, or the like can be used.

Therefore, according to the present embodiment, the following operations are provided. The floor finishing material 24A is provided on either the back surface of the floor finishing material 24A constituting the floor surface material 24 or the surface of the floor base material 24B.
150 to 350 m in the direction parallel or perpendicular to the long side of
At a distance of m, the double-sided adhesive tape 41 having a foam as a support is attached and the floor finishing material 24A is adhered to the floor base material 24B, so that the foam itself has a buffering action and is not adhered. The finishing material 24A easily bends when subjected to an impact, easily absorbs a drop impact sound, and reduces the generation of the impact sound and its propagation downstairs. Thereby, the propagation of the floor impact sound to the lower floor room can be further reduced.

A vertical connecting plate 51 is inserted and mounted between the substantially parallel floor beams 23 adjacent to each other, and an elastic vibration isolator is provided between a substantially vertical side surface of the vertical connecting plate 51 and a ceiling edge 62. Since the ceiling edge 62 is attached to the vertical connecting plate 51 with the material 65 interposed therebetween, even if a person walks on the floor or drops an object and the floor vibrates, this vibration also causes a heavy floor impact sound. Almost all of the lightweight floor impact noise is absorbed by the elastic vibration isolator 65, and is hardly transmitted to the ceiling edge 62, resulting in a floor structure having extremely good vibration and sound insulation properties. One construction method for providing such a floor structure is a ceiling edge 62 to which the elastic vibration isolator 65 is attached.
Is attached to a substantially vertical side surface of the vertical connecting plate 51, a ceiling edge 62 is attached to the vertical connecting plate 51 in which the elastic vibration isolating material 65 is attached to the substantially vertical side surface, or the elastic vibration isolating material 65 is sandwiched therebetween. If the ceiling edge 62 is pressed against the side surface of the vertical connecting plate 51 and the ceiling edge 62 is attached to the vertical connecting plate 51 together with the elastic vibration isolator 65, construction is easy. Also, since the ceiling edge 62 is attached to the substantially vertical side surface of the vertical connecting plate 51, the height of the lower surface of the vertical connecting plate 51 is
By mounting the vertical connecting plate 51 to the floor beam 23 at a position higher than the lower surface of the ceiling 3 by the height of the ceiling edge 62, the height of the ceiling panel 61 attached to the lower surface of the ceiling edge 62 can be reduced. It can be provided just below the beam 23. That is, the ceiling panel 61 can be attached at almost the same height as when the ceiling panel 61 is directly attached to the conventional floor beam 23. Thereby, the propagation of the floor impact sound to the lower floor room can be further reduced.

By connecting the vertical connecting plate 51 between the substantially parallel floor beams 23 adjacent to each other, the floor beams 23 can be prevented from falling down and the connection between the floor beams 23 can be strengthened. To increase the rigidity of the floor. When the rigidity of the floor is increased in this way, particularly, the impact resistance of the floor against heavy floor impact noise is improved, and the floor is less likely to vibrate. Thereby, the propagation of the floor impact sound to the lower floor room can be further reduced.

Since the adjacent floor panels 11 are connected via the damping material 32 arranged therebetween, the floor impact sound generated on one floor panel 11 is attenuated by the damping material 32,
Floor impact noise that propagates to the other adjacent floor panel 11 can be reduced. Thereby, the propagation of the floor impact sound to the lower floor room can be further reduced.

The double-sided adhesive tape 41 is applied to the floor substrate 2
4B at an interval of 150 to 350 mm, an elastic adhesive is applied between the double-sided adhesive tape 41 and the double-sided adhesive tape 41 thicker than the double-sided adhesive tape 41, and the floor finishing material 2
Since 4A is laid, the floor finishing material 24A is formed by the foam double-sided adhesive tape 41 having an initial adhesive strength.
Is adhered to the floor base material 24B at a predetermined interval, and the elastic adhesive is deformed to the thickness of the double-sided adhesive tape 41. At this thickness, the adhesive and elasticity are thereafter exerted, and the floor finishing material 24
The propagation of light impact noises generated on the surface A is prevented, and the sound and sound insulation performance is excellent.

While the vertical connecting plates 51 attached between the substantially parallel floor beams 23 adjacent to each other and increasing the rigidity of the floor are arranged in a double row, the rigidity of the floor is increased and the seismic resistance of the floor is improved. Can be improved.

Since the vibration damping weight 66 is attached to the ceiling margin 62 and is heavy, even if a person walks on the floor or drops an object on the floor, the floor beam 23 vibrates. In addition, the field margin attached via the elastic vibration isolator 65 does not easily vibrate.

Since the sound absorbing material 71 is loaded on the ceiling surface material 61 on the lower floor inside the floor, the floor impact sound passing through the inside of the floor can be absorbed and the sound insulation can be improved.

As described above, the impact sound level L60 was realized for both the light floor impact sound and the heavy floor impact sound, and the extremely high sound insulation of the floor structure of the unit building 1 was secured.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design can be changed without departing from the scope of the present invention. The present invention is also included in the present invention.

[0074]

As described above, according to the present invention, in a floor structure of a building, propagation of floor impact sound to lower floors can be further reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a unit building.

FIG. 2 is a perspective view showing an example of a high-damping floor structure, partially cut away.

3A and 3B show a unit building, FIG. 3A is a perspective view showing a part of the building, and FIG. 3B is a side view showing a vibration damping material between units.

FIG. 4 is a perspective view showing adjacent building units.

FIG. 5 is a sectional view showing a vibration damping material.

FIGS. 6A and 6B show a mounting procedure of the damping material, wherein FIG. 6A is a side view showing a state before mounting, and FIG. 6B is a perspective view showing a state after mounting.

FIG. 7 is a side view showing another mounting structure of the damping material.

FIG. 8 is a plan view showing a mounting position of a damping material.

FIG. 9 shows a floor material, and FIG. 9 (A) is a perspective view in which a double-sided adhesive tape is stuck along the width direction of the floor finishing material,
(B) is a perspective view of the double-sided adhesive tape stuck along the longitudinal direction of the floor finishing material.

FIG. 10 shows a mounting structure of a ceiling panel,
(A) is a perspective view showing a part of the floor structure in a cutaway manner, (B)
Is a side view.

FIG. 11 shows an attached state of a vibration damping weight,
(A) is a plan view, (B) is a cross-sectional view along line BB of (A), and (C) is a cross-sectional view along line CC of (A).

FIG. 12 is a side view showing a modification of the main part of FIG.

FIG. 13 is a perspective view showing a vibration-damping floor structure partly cut away.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unit building 11 Floor panel (floor structure) 21, 22 Large floor beam 23 Floor small beam 24 Floor surface material 24A Floor finishing material 24B Floor base material 32 Damping material 41 Double-sided adhesive tape 51 Vertical connecting plate 61 Ceiling surface material 62 Ceiling Field edge 65 Elastic vibration insulator 66 Damping weight 71 Sound absorbing material

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) E04F 15/18 601 E04B 5/58 S

Claims (8)

[Claims] 1. A high damping floor structure in which a floor member is provided above a beam member and a ceiling member member on a lower floor is provided below the beam member, wherein the floor member uses a foam as a support. Using a double-sided adhesive tape, a wooden floor finishing material is adhered and fixed to the floor base material, and is either parallel to the long side of the floor finishing material on either the back surface of the floor finishing material or the surface of the floor base material. Adhere the floor finishing material to the floor base material by applying double-sided adhesive tape almost in parallel with a spacing of 150 to 350 mm in the orthogonal direction, and attach the vertical connecting plate between adjacent beam materials A high vibration damping floor structure characterized by attaching a ceiling edge to a substantially vertical side surface of the vertical connecting plate via an elastic vibration isolator, and attaching a ceiling surface material to a lower surface of the ceiling edge. 2. A high-vibration control system comprising a plurality of floor structures arranged adjacent to each other, each floor structure having a floor member provided above a beam member and a lower ceiling member provided below the beam member. In a floor structure, adjacent floor structures are connected via a vibration damping material provided therebetween, and a floor material in each structure is a wooden floor using a double-sided adhesive tape having a foam as a support. The finishing material is adhered and fixed to the flooring material, and a space of 150 to 350 mm is provided on either the back surface of the flooring material or the surface of the flooring material in a direction parallel or perpendicular to the long side of the flooring material. A high-damping floor structure, characterized in that a double-sided adhesive tape is applied almost in parallel and the floor finishing material is adhered to the floor base material. 3. A high-vibration damping system in which a plurality of floor structures are installed adjacent to each other, each floor structure is provided with a floor surface material above a beam material, and a lower floor ceiling surface material is provided below the beam material. In the floor structure, adjacent floor structures are connected via vibration damping materials provided therebetween, and a vertical connection plate is inserted between adjacent beam members in each structure and attached. A high damping floor structure comprising a ceiling edge attached to a vertical side surface via an elastic vibration isolator and a ceiling surface material attached to a lower surface of the ceiling edge. 4. A high-vibration damping system in which a plurality of floor structures are installed adjacent to each other, each floor structure is provided with a floor surface material above a beam member, and a lower floor ceiling surface material is provided below the beam member. In a floor structure, adjacent floor structures are connected via a vibration damping material provided therebetween, and a floor material between the respective structures is formed of a wood-based material using a double-sided adhesive tape having a foam as a support. The floor finishing material is adhered and fixed to the floor covering material, and is provided on either the back surface of the floor finishing material or the surface of the floor covering material, at a distance of 150 to 350 mm in a direction parallel or perpendicular to the long side of the floor finishing material. The floor finishing material is adhered to the floor base material by applying double-sided adhesive tape almost in parallel, and a vertical connecting plate is inserted between adjacent beam members in each structure and attached. The ceiling edge is attached to the almost vertical side of the ceiling with elastic vibration insulators, and the ceiling edge is High damping floor structure characterized by attaching well material. 5. A flooring material and a floor finishing material of the flooring material,
The high vibration damping according to any one of claims 1, 2 and 4, wherein an adhesive applied thicker than the double-sided adhesive tape is interposed between the double-sided adhesive tape and the double-sided adhesive tape attached to both of them. Floor structure. 6. The high damping floor structure according to claim 1, wherein the vertical connecting plates are juxtaposed in a plurality of rows between adjacent beam members. 7. The high damping floor structure according to claim 1, wherein a damping weight is attached to the ceiling edge. 8. The high vibration damping floor structure according to claim 1, wherein a sound absorbing material is loaded between adjacent beam members above the ceiling face material.