JPH0238661A - Vibration-proof floor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a vibration-proof floor that prevents vibrations and noise from the floor surface from being transmitted downstairs.

Conventional technology In order to construct the above-mentioned vibration-proof floor, conventional methods have been used, such as making the floor structure a floating floor or constructing the floor using autoclave-cured lightweight aerated concrete plates (hereinafter referred to as ALC floor plates). It is being

Figure 3 shows a vibration-proof floor with a floating floor structure, in which steel joists (2) are erected on top of the steel beams (1) that make up the building frame. A lower floor plate (3) made of particle board is fixed with screws (4).

Then, the upper floor plate (6) is placed across the lower floor plate (3) and the vibration-proof insulation board (5), and nails or screws (7) are inserted from the upper surface of the upper floor plate (6) to the lower part. It is fixed by driving it all the way to the floorboard (3).

On the other hand, FIG. 4 shows an ALC floorboard (8) using an ALC floorboard (8), which is placed on a beam (1) similar to the above, with an ALC floorboard (8) about 1001 mm thick, and a floorboard made of particle board ( 9) has been installed.

Problems to be Solved by the Invention In the structure of the conventional vibration-proof floor described above, in the floating floor structure shown in FIG. It is possible to fix the floorboard (3) at the same time, but then both the upper floorboard (6) and the lower floorboard (3) are attached to the iron joists (
2) It will be completely fixed to the side and will not be configured as a floating floor. Therefore, in this conventional example, the lower floor plate (3) is first fixed to the iron joist (2) with screws (4), and then the upper floor plate (6) is fixed with another screw (7).
This greatly increases the man-hours required for screw driving, and the use of expensive insulation ginboards increases both construction and material costs.
Since the upper floor plate and the lower floor plate are connected to each other, there is a drawback that the vibration isolation performance itself is not very high. Furthermore, since the insulation board is mainly intended for vibration isolation, it has poor insulation properties, and since both are combustible materials, there is a risk that the floor will leak if a fire breaks out downstairs.

On the other hand, in the conventional example shown in Fig. 4, an ALC floor plate (8) with a thickness of approximately 100 mm must be used to support the vertical load, which increases the overall weight. Therefore, the construction work from delivery to installation becomes a big loss, and the price of the ALC floorboard (8) itself becomes high, resulting in high costs.

An object of the present invention is to eliminate the drawbacks of such conventional vibration-proof floors.

Means for Solving the Problems In order to solve the above problems, in this invention, a steel joist is passed over a beam, and each end of the temporary ALCI'i installed on the iron joist is connected to the upper surface of the iron joist. Along with matching each other, this A1. , Install a floorboard made of plywood, particle board, etc. on the C floorboard so that the same floorboards are continuous on the abutment part, and use screws screwed into the iron joists from the top surface of this floorboard to
It is characterized by fixing each end of the LC floor plate.

The ALC floorboards installed on the working beams are supported via steel joists, and in order to support the vertical load with these ALC floorboards and steel joists, thin ALC floorboards with a thickness of about 35 to 37 fins were used. Sufficient strength can be obtained even in the case of Therefore, the price of the ALC floorboard itself becomes low, and the weight is reduced, so that workability during work is improved.

Embodiment FIG. 1 shows an embodiment of the present invention. In the figure, (11) is a beam constituting a steel frame similar to the conventional one, and on this beam (11), Square pipe-shaped iron joists (12) extending perpendicularly to the joists (11) are arranged at intervals in the floor direction.

(13) (13) is an ALC floor plate formed to be less than half the thickness of the conventional one, which is about 35 to 37 m thick,
These ALC floor plates (13) (13) are installed at their ends on the iron joists 12), and the end surfaces of each ALC floor plates (13) (13) are placed on the iron joists (12). are compared in. AL
C floor board (13) (13) has a thickness of 12 to 1
A plywood upper floor plate (15) of about 5 mm is laid so that the same floor plate (15) is continuous over the butt end (14) of section iii. This upper floorboard (1
5) Screw (16) screwed in from the top (16)
Penetrating the end of each ALC floor plate (13) (13),
It is driven up to the iron joist (12), thereby fixing both the upper floor board (15) and the ALC floor Fi (13) to the iron joist (12). At that time, ALC floor plate (13)
(13) is pressed down from above by the floorboard (15), so no unevenness occurs. In addition, the upper floor plate (
15) Carpet and other floor coverings are installed on top.

FIG. 2 shows the results of measuring the impact sound level of the floor surface of a floor having the same structure as the embodiment shown in FIG. 1 obtained by this invention and a conventional floor shown in FIG. ,
It can be seen that the floor of the present invention has vibration-proofing performance in spaces between roads and the like compared to the conventional example shown in FIG. 3, which has a floating floor structure.

Effects of the Invention As described above, according to this invention, the iron joists on which the ALC floor boards are mounted bear the vertical load, so the ALC floor boards can be reduced to nearly one-third of the conventional load, as shown in the examples. Thin walled ones can be used. Therefore, A.L.
The price of the C floorboard itself is low, and since it is a light layer, it is easy to handle during work, and the number of man-hours for screwing is significantly reduced compared to the one in Figure 3, resulting in an overall low cost. It has the effect of being able to be implemented. Moreover, compared to the one shown in FIG. 3, one can be obtained which has the same level of vibration-proofing properties but has excellent heat insulation properties and fire resistance.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of a main part of a floor section showing an embodiment of the present invention, FIG. FIG. 4 is a vertical cross-sectional view of a main part showing the structure of a conventional floor. (11)...beam, (12)...iron joist, (13)
,...ALC floorboard, (14)...butt end,
(15)... Upper floor plate, (16)... Screw. Special work applicant Sekisui House Co., Ltd. Representative Patent Attorney
Hisayuki Tarumoto Figure 2 Octave Band Middle M7RL (H2)

Claims (1)

[Claims] An iron joist is passed over the beam, and the AL installed on top of this iron joist.
Each end of the C floorboards is butted against each other at the upper surface of the iron joists, and a floorboard made of plywood, particle board, etc. is installed on top of this ALC floorboard so that the same floorboards are continuous on the butted part. , with screws screwed into the iron joists from the upper surface of this floorboard,
C. A vibration-proof floor characterized by fixing the ends of each floor plate.