JPH078675Y2 - Anti-vibration and sound insulation device for floors in prefabricated buildings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The invention of the present application relates to a vibration isolating and sound insulating device for a floor portion of a prefabricated building made of lightweight steel or the like.

[Conventional technology]

Conventionally, the floor part of the downstairs or the upper floor in the prefabricated building using lightweight steel, etc., has the joist member on the upper floor of the first floor, and the floor part of the upper floor has the joist member on the beam member. Place
It is generally known that a heat insulating material is arranged between the joist members, and a floor board material is stretched on the joist member of the upper layer portion with a moisture-proof layer interposed between the joist members and the floor material such as tatami mats. .

Then, the joist member and the Daibiki and beam members have been pin-joined with an angle member or a vault nut and positioned.

[Problems to be solved by the device]

However, in the above floor structure, the joist member arranged on the horizontal member such as the haul or beam member is welded with the angle member for locking or the vault hole is drilled at each position. Since the nuts are installed and the pins are connected by screwing, the disadvantages of being labor-saving and lacking in economy were inevitable.

In addition, by fitting a heat insulating material between the joist members or filling it in the field, the heat insulating effect of the living space (living room) can be expected to some extent through the floor, but vibration and sound insulation on the floor can be expected. It can be said that the measures against it are insufficient.

For example, when passing a vehicle loaded with heavy objects on the road near the building or when moving up and down from the lower floor to the floor vibration and squeak noise, the static environment of the living space that should be comfortable should be Disturbances often occur when silence cannot be maintained.

In view of the above, the invention of the present application is to save labor in the engagement between the hauling member, the beam member and the joist member, hold the joist member, and laminate the vibration-proof and sound-insulating material on the joist member. Therefore, it is an object of the present invention to provide a floor vibration-proof and sound-insulating device capable of improving the vibration-proof and sound-insulating effects of the floor.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the floor vibration-proof and sound-insulating device of the present invention arranges a hollow joist member with a double-sided adhesive sound-insulating mat interposed at a joist member placement position such as a haul or beam member. In addition, a sound absorbing material or a sound absorbing layer is arranged between the hollow joist members, and at least a lightweight cellular concrete panel (ALC panel), a non-combustible board, on the hollow joist members,
This is to combine the technology of laminating sound absorbing layers such as soft fiber boards for sound absorption and stretching the finishing floor member. Furthermore, the hollow part of the joist is filled with a sound absorbing layer made of inorganic fiber material such as glass wool. , The filled sound absorbing layer is made to absorb vibrations and sound waves, and a large number of small holes are formed in the wall of the hollow joist, and the sound absorbing layer is filled and provided in the wall of the joist. Sound waves or vibrations incident from the small holes are reflected and absorbed by the filled sound absorbing layer, and the sound insulating effect is improved.

[Action]

The floor constructed as described above has a vibration-damping effect when the joist member is elastically held on the double-sided adhesive sound-insulating mat at an appropriate position of the haul or the beam member, and the sound absorption between the joist members is achieved. The vibrations applied to the joists are alleviated by the composite sound absorbing layer such as the sound absorbing soft fiberboard made of at least lightweight cellular concrete panel (ALC panel), non-combustible board and pulp laminated on the members and joists. ，
The laminated material on the joists and the sound absorbing material arranged between the joists absorbs vibrations and oscillating sound waves propagating between the laminated materials, and also absorbs and attenuates sound waves incident on the laminated materials from the space to insulate sound. Produce an effect.

〔Example〕

An embodiment of a floor vibration damping and sound insulating device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of the main part of the floor of the present invention, and FIG. 2 (a).
Is an enlarged vertical sectional view of a hollow joist, (b) is an enlarged horizontal sectional view,
FIG. 3A is an enlarged vertical sectional view of a hollow joist in another embodiment, and FIG. 3B is an enlarged horizontal sectional view of the same.

Referring to FIG. 1, the vibration and sound insulation device of the floor according to the present invention is an H-shaped steel pull member placed on the floor of the prefabricated building made of lightweight steel or the like, or placed on the upper floors of the second floor and above. H
Hollow joist 4 made of light-angled steel, etc., via sound-insulating mats 3 made of vulcanized rubber with double-sided adhesive sheets 2, 2 laminated on both sides at regular intervals on a horizontal member 1 such as shaped steel beam members. , 4 are arranged and positioned, and an appropriate receiving member 5 is provided between the hollow joists 4, 4.
And the moisture-proof layer 6 is stretched, or the sound-absorbing layer 7 made of glass wool or other refractory inorganic fiber material provided with the moisture-proof layer 6 is placed, and at least light weight is provided on the hollow joist 4,4. Aerated concrete panel (ALC panel) 9, non-combustible board 8 such as sheathing gypsum board, and sound absorbing soft fiberboard (JISA6304) sound absorbing board made of pulp, etc.
A composite floor portion 11 in which 10 layers are stacked is arranged, and a floor material 12 such as a decorative floor board material or a tatami mat is stretched over this.

Next, as another embodiment in the configuration of the hollow joist members 4, 4, as shown in FIG. 2, joist materials 4, such as light square steel,
A sound absorbing layer 13 made of an inorganic fiber material such as glass wool may be filled in the hollow part of 4 to absorb the echo of vibration sound in the hollow part of the joist 4, 4.

Furthermore, as another embodiment of the above-described embodiment, a large number of small holes 14 are bored in an appropriate wall portion or all wall portions of the hollow joists 4, 4, and the sound absorbing layer 13 is provided in the hollow portion. The sound-insulating effect is further improved by causing the sound-absorbing layer 13 filled with vibrations or sound waves that are propagated through the small holes from the peripheral wall portions of the large-sized joisted timbers 4 and 4 to be reflected and absorbed. Can also be

[Effect of device]

Since the device of the present application has the above-described configuration, the following effects can be obtained.

(A) The joists are extremely labor-saving because they are placed on a beam member or a beam member via a sound-insulating mat having a double-sided adhesive layer, not by pin connection.

(B) Since the joist member is elastically held on the sound insulation mat, the vibration damping effect can be improved.

(C) In addition to arranging a heat insulating and sound absorbing layer such as glass wool between the joist members, a composite floor part made by laminating fire resistant, heat insulating and sound absorbing materials is formed on the joist material, and the decorative floor member is covered. As a result of being installed, not only the heat insulating property but also the sound absorbing effect of the floor part can improve the sound insulating effect.

(D) Further, by filling the sound absorbing layer in the hollow portion of the joist, the joist can exert the vibration damping effect,
It helps to maintain a quiet living environment by reducing vibrations and squeaks when climbing stairs.

(E) Also, by providing a small hole in the wall of the hollow joist material and filling it with a sound absorbing layer, various industrial effects such as further vibration and sound insulation effects can be obtained. To be

BRIEF DESCRIPTION OF THE DRAWINGS In the accompanying drawings showing an embodiment, FIG. 1 is a perspective view of an essential part of a floor, FIG. 2 (a) is an enlarged vertical sectional view of a hollow joist, and FIG.
FIG. 3B is an enlarged horizontal sectional view, FIG. 3A is an enlarged vertical sectional view of a hollow joist in another embodiment, FIG. 3B is the enlarged horizontal sectional view, and FIG. 4 is sound insulation. It is an expanded sectional view of a mat. Explanation of symbols 1; Horizontal member, 2, 2; Double-sided adhesive tape 3, 3; Sound insulation mat, 4, 4; joist material 5; Receiving material, 6; Moisture-proof layer 7; Sound absorbing layer, 8; Non-combustible board 9; ALC Panel, 10; Sound absorbing board 11; Composite floor, 12; Floor material 13; Sound absorbing layer, 14; Small hole

Claims (3)

[Scope of utility model registration request] 1. A horizontal member such as an H-section steel arranged on the floor,
A hollow joist is placed through a double-sided adhesive sound insulation mat, and a sound absorbing material or a sound absorbing layer is placed between the hollow joists,
And a floor in a prefabricated building characterized by forming a composite floor part in which at least a lightweight cellular concrete panel, a non-combustible board and a sound absorbing board are laminated on the hollow joist and a finishing floor material is stretched. Anti-vibration and sound insulation device. 2. A vibration isolating and sound isolating device for a floor according to claim 1, wherein the hollow portion of the joist is filled with a sound absorbing layer made of glass wool or other inorganic fiber material. 3. A vibration isolating and sound insulating device for a floor according to claim 2, wherein a large number of small holes are formed in the wall of the hollow joist.