JP2539995B2 - Sound insulation structure of building unit - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulation structure for a building unit. Specifically, the present invention relates to a sound insulation structure of an upstairs building unit stacked on a downstairs building unit.

[0002]

2. Description of the Related Art Conventionally, in a unit building in which building units are vertically stacked, a sound insulation structure for upper and lower floors is shown in FIG.
The structure shown in FIG.

[0003] In the figure, 1 is a building unit for downstairs,
2 is a building unit for upper floors. As shown in FIG. 7, the skeletons of these building units 1 and 2 are composed of four columns 3, ceiling beams 4A and 4B connecting the upper ends of these columns 3, and columns 3
And four floor beams 5A and 5B connecting the lower ends of the floor beams. Between the pair of ceiling beams 4A and the pair of floor beams 5A which are arranged parallel to each other on the long side side, a plurality of beam members 7 and joists 9 are provided via brackets 6 and 8 (see FIG. 6), respectively. Are installed at regular pitch intervals. Here, the ceiling frame 11 is composed of the ceiling beam 4A and the small beam 7,
The floor frame 12 is composed of the floor frame 5A and the joists 9.

[0004] Ceiling frame 11 of downstairs building unit 1
The ceiling member 13 made of gypsum board serving as a sound insulation board under surface of the plurality of the beams 7 is attached. On the other hand, the floor frame 12 upstairs for the building unit 2 consists of a particle board on top surfaces of the plurality of joists 9 flooring 14
Together are attached, the plurality of sound insulation board 15 under surface consisting <br/> gypsum board flooring 14 is attached. That is, each sound insulation board 15 is attached between a plurality of joists 9, as shown in FIG.

Therefore, when the upstairs building unit 2 is stacked on the downstairs building unit 1, the ceiling frame 11 of the downstairs building unit 1 and the floor frame 12 of the upstairs building unit 2 are sandwiched between the plasterboards. Since the ceiling material 13 of the downstairs building unit 1 and the sound insulation board 15 of the downstairs building unit 1 are arranged, that is, 2
Since it has a structure in which gypsum boards are heavily stacked, the upper and lower floors can be reliably and effectively sound-insulated.

[0006]

[SUMMARY OF THE INVENTION However, in the conventional sound insulation structure described above, since a structure in which the sound insulation board 15 made of gypsum board under surface of the floor member 14 is mounted, 1
The length of the sound insulating boards 15 is limited to the mounting pitch of the joists 9. Therefore, it is necessary to prepare a plurality of sound insulation boards 15 having a length dimension corresponding to the mounting pitch dimension of the joist 9. In addition, since each of the sound insulation boards 15 must be attached to the lower surface side of the floor material 14, it takes time and effort to attach them.

Therefore, the applicant of the present invention has proposed a structure for solving these points. As shown in FIGS. 4 and 5, this is under the plurality of joists 9 that make up the floor frame 12.
The sound insulation board 16 made of one plaster board is attached to the surface. Therefore, the length dimension of the sound insulation board 16 is not limited to the installation pitch dimension of the joist 9 as in the conventional case. Therefore, a plurality of sound insulation boards having the length dimension corresponding to the installation pitch dimension of the joist 9 is prepared. Therefore, the sound insulation board can be easily and efficiently attached.

However, in this structure, since the sound insulation board 16 is attached at a position substantially at the same level as the lower surface level of the floor beams 5A and 5B constituting the floor frame 12, the building unit 2 is long on the floor surface. If left for a while, the sound insulation board 16 made of gypsum board may be damaged by the moisture from the floor. In particular, when left in a stockyard or the like until it is transported to a construction site, the above-mentioned problem becomes more prominent because of a large amount of moisture from the ground due to rainfall.

An object of the present invention is to eliminate the above-mentioned conventional drawbacks, to easily and efficiently attach a sound insulation board, and to prevent damage due to moisture in a sound insulation structure of a building unit. To provide.

[0010]

Therefore, a sound insulation structure for a building unit of the present invention is a sound insulation structure for a building unit having a floor frame in which a plurality of joists are connected between a pair of floor beams arranged in parallel with each other. The lower surface of the joists is above the lower surface level of the pair of floor beams and the upper surface level of the floor beams.
Causes more positioned below and attached floated upwardly a predetermined height with respect to the lower surface level of the <br/> sound insulation board under surfaces of the joists said pair of floor beams, and characterized in that.

[0011]

[ Operation ] Above the lower surface of the pair of floor beams and above the floor beams
The lower surface of the plurality of joists from the surface level downward is positioned, since the sound insulation board under surfaces of the joists are attached floated at a predetermined height above the lower surface level of a pair of floor beams, installation surface It is possible to prevent damage to the sound insulation board due to moisture from the. Well, since underneath surface of the joists so that attachment of the sound insulation board, without the length of the sound insulation board is limited in the mounting pitch dimension of joists as in the prior art, therefore, the mounting pitch dimension of joists Since it is not necessary to prepare a plurality of sound insulation boards having combined lengths, it is possible to easily and efficiently attach the sound insulation boards.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIGS. 1, 2 and 3. In the description of these drawings, the same components as those in FIGS. 4 to 8 described above will be denoted by the same reference numerals, and the description thereof will be omitted or simplified.

[0013] sound insulation structure of this embodiment, as shown in FIGS. 1 and 2, in upstairs for building unit 2, floor beams 5A which constitutes the floor frame 12, or above the lower surface level 5B
One floor beam 5A, together with the lower surface of the more downward the upper surface level of the 5B plurality of joists 9 are positioned, with respect to sound insulation board 16 under surfaces of the joists 9. The floor beams 5A, 5B underside level And is mounted so as to float above a predetermined height h.

Specifically, it is constructed as follows.
First, the joist 9 is formed so that its height is lower than that of the conventional joist 9. Further, in the bracket 8, as shown in FIG. 3, the joining pieces 22 and 23 to be welded to the web W and the lower flange F of the floor beam 5A are bent at right angles to the vertical main body portion 21. In addition, the end portion of the joist 9 is positioned above the joining piece 23 so that the lower surface of the joist 9 is located above the lower surface level of the floor beams 5A and 5B and below the upper surface level of the floor beams 5A and 5B. A supporting piece 24 for supporting the is bent at a right angle and horizontally. The sound insulation board 1 under surface of the plurality of joists 9 supported by the supporting piece 24 of each bracket 8 composed of one plasterboard
6 is arranged and is attached by being floated above a predetermined height h with respect to the lower surface level of the floor beams 5A and 5B by nailing, bonding or the like.

Therefore, even if the building unit 2 is installed on the floor surface, the sound insulation board 16 made of one plaster board is attached at a position floating above the installation surface by a predetermined height h. Sound insulation board 16
Can be prevented from being damaged. Further, in assembling, the building unit 2 for upper floors is stacked on the building unit 1 for lower floors. Then, the ceiling material 13 of the downstairs building unit 1 and the sound insulation board 16 of the upstairs building unit 2 which are made of gypsum board are arranged with the ceiling frame 11 of the downstairs building unit 1 interposed therebetween, that is, Since the gypsum board is double-layered, the upper and lower floors can be reliably and effectively insulated.

Therefore, according to this embodiment, the floor frame 1
Floor beams 5A sound insulation board 16 under surface of the plurality of joists 9 constituting the 2, since the attachment floated a predetermined height h above the lower surface level 5B, sound insulation and the installation surface of the building unit 2 Since a gap of a predetermined height h is secured between the board 16 and the board 16, damage to the sound insulation board 16 due to moisture from the installation surface can be prevented.

Further, since the bottom surface of the plurality of joists 9 constituting the underframe 12 so that attachment of the sound insulation board 16, the length of the sound insulation board 16 is attached pitch of joists 9 as in the conventional length It is not limited to the size. Therefore, since it is not necessary to prepare a plurality of sound insulation boards, the sound insulation boards can be attached easily and efficiently.

Although the sound insulation board 16 is formed of gypsum board in the above embodiment, the material is not limited to the above example as long as it has a sound insulation function, and other materials may be used.

[0019]

As described above, according to the present invention, according to the sound insulation structure of the building unit of the present invention, the <br/> sound board shielding under surface of the joist constituting the underframe at a predetermined height above the lower surface level of the floor beam Since the sound insulation board is mounted floating, it is possible to easily and efficiently mount the sound insulation board, and it is possible to prevent damage to the sound insulation board due to moisture from the installation surface.

[Brief description of drawings]

FIG. 1 is a diagram showing a sound insulation structure of upper and lower floors of a unit building using a building unit of the present invention.

FIG. 2 is a perspective view showing a floor frame portion in the building unit for floors of FIG. 1;

FIG. 3 is a perspective view showing a bracket used in the upper floor frame.

FIG. 4 is a diagram showing a sound insulation structure of upper and lower floors of a unit building using a conventional building unit (a building unit separately proposed by the applicant).

5 is a perspective view showing a floor frame portion of the upper floor building unit of FIG. 4. FIG.

FIG. 6 is a diagram showing a conventional upper and lower floor sound insulation structure of a unit building.

FIG. 7 is a perspective view showing a skeleton of the building unit of FIG.

8 is a perspective view showing a floor frame portion of the upper floor building unit shown in FIG. 6;

[Explanation of symbols]

 1 Downstairs building unit 2 Upstairs building unit 5A, 5B Floor beam 8 Bracket 9 Joist 12 Floor frame 16 Sound insulation board

Claims (1)

(57) [Claims] 1. A sound insulation structure of the building unit having a floor frame formed by connecting a plurality of joists in parallel-arranged pair of floor Harima each other, the upper and the lower surface of the joists lower surface level of said pair of floor beam features with is <br/> located below the upper surface level of the floor beam, mounted floated upwardly a predetermined height with respect to the lower surface level of the sound insulation board under surfaces of the joists said pair of floor beams, that Sound insulation structure for building units.