JP2011032802A - Partition wall structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a resonance phenomenon of a dry-type partition wall in a low frequency range which is caused by installation of a false wall for construction of building facility equipment, and to secure sound insulation performance intrinsic to the partition wall. <P>SOLUTION: The partition (1) by the dry construction method is erected vertically between a floor structure (F1) and an upper-floor structure (F2). The false wall (10) for the installation of the building facility equipment (90) is formed on one side or both sides of the partition. The false wall has an interior board material (15), a hollow layer (18), and openings (40, 41). The openings always communicate a hollow layer, an indoor space, a ceiling space (28) or an under-floor space (38) in a ventilation state. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a partition wall structure, and more specifically, it is formed on a partition wall of a dry construction method constructed as a boundary wall, a boundary wall or a fireproof partition wall of a medium-high-rise building, and at least one side of the partition wall The present invention relates to a partition wall structure having a puffed wall.

  Various performances such as fireproof performance, fireproof performance, sound insulation performance, vibration insulation performance, vibration insulation performance, heat insulation performance, and crime prevention performance are required for the partition walls of the building. The sound insulation performance of the partition walls tends to be particularly emphasized in recent years in order to ensure the independence and comfort of each residence or room.

  In general, a wall of a wet method such as a reinforced concrete wall exhibits high sound insulation performance. However, the partition wall of the wet construction method has a large weight of the wall body, which is difficult from the viewpoint of building weight reduction and the like, and is disadvantageous in terms of construction period and workability. For this reason, the wall body of wet construction methods, such as a reinforced concrete wall, has the circumstance which is difficult to use as a boundary wall, a boundary wall, or a fireproof division wall of a medium-high-rise building.

  On the other hand, the partition wall of the dry construction method is advantageous from the viewpoint of ease of construction and weight reduction of the building, and is widely used as a boundary wall, a boundary wall, or a fireproof partition wall of a medium to high-rise building. As a partition wall for the dry construction method, a partition wall with a frame structure in which interior board materials such as gypsum board and calcium silicate board are attached to the studs, and a partition wall in which the studs are omitted (generally called non-stud structure or studless structure) .) Is known.

  In the partition wall of the shaft structure, the studs are aligned and arranged at predetermined intervals along the wall core, and the upper end and the lower end of the studs are respectively supported by the ceiling runner and the floor runner. The interior board material is fixed to the studs, and a vertical wall surface is formed on the indoor side.

  On the other hand, the partition wall of the non-stud structure or studless structure in which the studs are omitted has a configuration in which an interior board material reinforced by a reinforcing rib or the like is attached to the ceiling runner and the floor runner.

  In recent years, in order to improve the sound insulation performance of the partition wall of such a dry construction method, the sound insulation performance of the interior board material itself, the arrangement and arrangement of the studs, etc. have been particularly researched. A partition wall of a dry construction method that exhibits a high sound insulation performance exceeding the above has been developed, and has already been put to practical use as a boundary wall or a boundary wall of a mid-to-high-rise apartment house or a mid-to-high-rise hotel.

  However, in an actual building, various types of electrical wiring, communication wiring, wire piping, water supply / drainage equipment piping, air conditioning equipment piping, air conditioning ducts, etc. are wired or piped in the hollow layer of the partition wall, or penetrate the partition wall. . Many wirings or pipes are connected to a wall-embedded wiring box, a water supply / drainage sanitary fixture, or a ceiling or wall fixture. Such building equipment and fixtures have a large cross-sectional defect in the interior board material and sound insulation performance, no matter how skillfully and tightly seal the gaps around the fixtures or pipes by means of hole filling after installation of the fixtures or piping. In addition, it tends to cause a decrease in fire resistance.

  In order to prevent a decrease in sound insulation performance and fire resistance performance due to such installation of building equipment, a partition wall structure in which a double wall is further formed on the indoor side of the partition wall is known.

Figure 12 is a longitudinal sectional view showing the structure of a partition wall having a sound insulation performance TL _D -56, 13, longitudinal illustrating a partition wall structure that further construction walls puff on both sides of the partition wall shown in FIG. 12 FIG. The sound insulation performance TL _D -56 is a performance value of the sound insulation performance obtained in a state where the building equipment E is not disposed on the wall surface of the partition wall W1.

  A partition wall W1 shown in FIG. 12 is a partition wall having a configuration in which wall surfaces of two interior board materials are attached to both sides of a wall base. The ceiling material of the ceiling structure C of each room is abutted against the wall surface of the partition wall W1 via a ceiling periphery (not shown) or the like. The base of the partition wall W1 is composed of the stud S and the upper and lower runners R1, R2, and the reinforced gypsum board B1 and the hard gypsum board B2 are attached to the wall base material. The hollow layer G1 of the partition wall W1 constitutes a concealing space for wiring or piping various electric wirings, communication wirings, electric wire piping, water supply / drainage equipment piping, and the like.

  The partition wall structure shown in FIG. 13 has a configuration in which a base material and an interior board material are further built on both sides of the partition wall W1 as a squeeze wall W2. The wall base of the soft wall W2 is composed of the stud T and the upper and lower runners U1, U2, and the gypsum board B3 is attached to the base material. The hollow layer G2 of the soft wall W2 constitutes a concealing space for wiring or piping various electric wirings, communication wirings, electric wire piping, water supply / drainage equipment piping, and the like.

  In FIG. 12 and FIG. 13, the wiring box of the power outlet is shown as the building equipment E. The building equipment E is connected to the wall pipe P concealed in the wall via the pipe connection portion J. In the partition wall structure shown in FIG. 12, the building equipment E is disposed in the opening for equipment formed on the wall surface of the partition wall W1, and in the partition wall structure shown in FIG. 13, the building equipment E is the upper wall W2. It is arrange | positioned in the opening part for facilities formed in the wall surface of this.

  In the partition wall structure in which the building equipment E is arranged on the wall surface of the partition wall W1 as shown in FIG. 12, how well the fireproofing and airtightness is achieved by filling the gap between the equipment opening and the building equipment E. Even if it can be processed, a cross-sectional defect of the interior board material occurs. For this reason, it is difficult for the partition wall W1 to exhibit sufficient fire resistance and sound insulation performance.

  On the other hand, in the partition wall structure in which the building equipment E is disposed on the wall surface of the wiping wall W2 as shown in FIG. 13, no cross-sectional defect occurs in the interior board material of the partition wall W1. Therefore, it is considered that the partition wall structure shown in FIG. 13 exhibits superior fire resistance and sound insulation performance compared to the partition wall W1 shown in FIG.

  In addition, although the soft wall constructed on an outer wall etc. for dew condensation prevention is described in patent 3992192 publication gazette (patent document 1), description of patent document 1 considers sound insulation performance and fireproof performance. It does not relate to the technique of the wall that is provided on the partition walls of the dry method.

  Further, a fusari wall provided on a reinforced concrete wall or the like in order to improve the sound insulation performance of the wall body is described in Japanese Patent Laid-Open No. 2005-146651 (Patent Document 2). This technology relates to the improvement of the sound insulation performance of the wall body, but it does not relate to the technology of preventing the sound insulation performance and fire resistance of the partition walls from being lowered in connection with the installation of building equipment.

  Furthermore, a technique for preventing a decrease in sound insulation due to installation of building equipment is described in Japanese Patent Laid-Open No. 2001-254454 (Patent Document 3). This technique is only intended to prevent a decrease in sound insulation performance by locally applying a special airtight treatment around the equipment and is not related to the installation of a fussy wall.

Patent No. 3992192 JP 2005-146651 A JP 2001-254454 JP

FIG. 14 is a diagram showing the sound insulation performance of the wall body shown in FIGS. 12 and 13. The value of sound transmission loss (TL _D ) shown in FIG. 14 is an index indicating the sound insulation performance of a single wall measured in an acoustic test room. 14, each reference curve of sound insulation performance TL _D -50,55,60,65,70 is indicated by a broken line.

  As shown in FIG. 14, the partition wall structure (FIG. 13) provided with the cover wall W <b> 2 exhibits excellent sound insulation performance in a frequency range exceeding 250 Hz, as compared with the partition wall W <b> 1 (FIG. 12) not including the cover wall.

  However, the partition wall structure (FIG. 13) provided with the cover wall W2 has a significantly reduced sound insulation performance in a low frequency range of 250 Hz or lower, and is lower than the partition wall W1 (FIG. 12) not provided with the cover wall W2. It has been found that it can only exhibit sound insulation performance.

Therefore, the partition wall W1 (FIG. 12) is a sound insulation wall having a sound insulation performance TL _D -56, whereas the partition wall structure (FIG. 13) provided with the cover wall W2 can obtain only the sound insulation performance TL _D -49. That is, the result that the sound insulation performance (TL _D ) of the partition wall structure deteriorates due to the installation of the fussy wall W2 is produced.

  This is considered to be due to the fact that the hollow layer G2 acts as an air spring due to the installation of the fussy wall W2, and a resonance phenomenon occurs in a low frequency region of 250 Hz or less.

  This invention is made in view of such a subject, The place made into the objective is at least one of the partition walls of the dry-type construction method constructed as a door wall, a boundary wall, or a fireproof partition wall of a medium-high-rise building A partition wall structure is installed on the side of the wall to prevent the resonance phenomenon in the low frequency range caused by the installation of the wall, and to ensure at least the original sound insulation performance of the partition wall. It is to provide.

  In order to achieve the above object, the present invention provides a partition wall of a dry construction method that is vertically built between a floor structure and an upper floor structure and is constructed as a continuous wall body from the floor structure to the upper floor structure. In the partition wall structure having a soft wall formed on at least one side of the partition wall, the soft wall includes an interior board material that forms an indoor side wall surface, and a wall surface of the partition wall and the interior board material. Provided is a partition wall structure characterized by having a formed hollow layer and an opening that constantly communicates the hollow layer with an indoor space, a ceiling back space, or an underfloor space in a ventilation state.

  According to the above configuration of the present invention, the hollow layer of the wall is always in communication with the indoor space, the ceiling space, or the underfloor space through the opening formed in the interior board material of the wall. As a result of experiments by the present inventors, it has been found that the phenomenon of extremely low sound insulation in the low frequency region as shown in FIG. Therefore, in order to prevent or suppress a decrease in sound insulation caused by low-frequency resonance of the soft wall, it is necessary to open the soft wall continuously or partially and provide an air escape path (opening) to the hollow layer of the soft wall. Is an effective measure. In other words, the air spring phenomenon of the hollow layer that generates the resonance phenomenon in the low frequency region (low sound region resonance) can be suppressed by the air escape path formed by the opening.

  Moreover, according to the said structure of this invention, since a construction equipment instrument can be installed in a soft wall, the necessity of installing a construction equipment instrument in a partition main body can be eliminated. For this reason, it is possible to avoid the sound insulation performance of the partition wall due to a cross-sectional defect or the like, and to ensure the original sound insulation performance of the partition wall.

  According to the partition wall structure of the present invention, a wall for installing building equipment is disposed on at least one side of a partition wall of a dry construction method that is constructed as a boundary wall, a boundary wall, or a fireproof partition wall of a medium-high-rise building. At the same time, it is possible to prevent a resonance phenomenon in the low frequency range due to the installation of the cover wall, and to ensure at least the original sound insulation performance of the partition wall.

It is a longitudinal cross-sectional view of the partition (partition body) which constitutes the partition wall structure of the present invention. It is a partial cross-sectional view of the partition wall shown in FIG. FIG. 3 is a cutaway perspective view of a partition wall shown in FIGS. 1 and 2. It is a longitudinal cross-sectional view which shows the structure of the partition wall structure which concerns on the Example of this invention. FIG. 5 is a partial cross-sectional view of the partition wall structure shown in FIG. 4. FIG. 6 is a cutaway perspective view of the partition wall structure shown in FIGS. 4 and 5. It is a longitudinal cross-sectional view which shows the structure of the partition wall structure which concerns on a comparative example. FIG. 8 is a cutaway perspective view of the partition wall structure shown in FIG. 7. It is a diagram which shows the sound insulation performance of the wall shown in FIGS. It is a longitudinal cross-sectional view which shows the structure of the partition wall structure which concerns on the other Example of this invention. It is a fractured perspective view of the partition wall structure shown in FIG. It is a longitudinal sectional view showing a structure of a conventional partition wall having a sound insulation performance TL _D -56. It is a longitudinal cross-sectional view which shows the conventional partition wall structure which constructed the soft wall on the both sides of the partition wall shown in FIG. It is a diagram which shows the sound insulation performance of the wall shown in FIG.12 and FIG.13.

  According to a preferred embodiment of the present invention, the ceiling structure forming the ceiling space is constructed under the upper floor structure, and the opening is provided so that the hollow layer communicates with the ceiling space. It is a continuous opening or a partial opening formed continuously or intermittently on the top of the material. For example, the wall surface formed by the interior board material (15) terminates at a height lower than the lower surface of the upper floor structure (F2), and the opening extends from the upper end of the interior board material to the upper floor structure ( It consists of a continuous opening (40) formed between the lower surface of F2). The continuous opening continuously extends in the direction of the wall core along the partition wall, and allows the hollow layer (18) to communicate with the ceiling space (28). As a modified example, a plurality of partial openings that allow the hollow layer to communicate with the ceiling space may be formed in the interior board member at intervals in the wall core direction, whereby the openings may be disposed on the cover wall.

  According to another preferred embodiment of the present invention, the wall surface formed by the interior board material (15) is continuous from the floor structure (F1) to the lower surface of the upper floor structure (F2). At least a part of the plate includes a perforated plate (16) in which a large number of small-diameter or small-sized through holes (42) communicating the hollow layer (18) and the indoor space are dispersedly arranged. A through-hole comprises the said opening which connects a hollow layer and indoor space.

  According to still another preferred embodiment of the present invention, a double floor structure (30) forming an underfloor space (38) is constructed on the floor structure (F1), and the opening is formed of a hollow layer (18 ) And the underfloor space are continuous openings or partial openings (41) formed continuously or intermittently in the lower part of the interior board material (15).

Preferably, the partition wall (1) is a partition wall between a boundary wall or a doorway wall of an apartment house or a guest room of an accommodation facility, and has a sound insulation performance of TL _D -50 or more, preferably TL _D -55 or more.

  More preferably, the partition wall (1) is a partition wall having a fireproof structure that forms a fireproof compartment or a fireproof compartment.

  Hereinafter, a partition wall structure according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a longitudinal sectional view of a partition wall (partition body) constituting the partition wall structure of the present invention, and FIG. 2 is a partial transverse sectional view of the partition wall shown in FIG. FIG. 3 is a cutaway perspective view of the partition wall shown in FIGS. 1 and 2.

  The partition wall 1 is a partition wall of a dry construction method. The base is composed of a lower runner 2 disposed on the floor structure F1 such as a floor slab, an upper runner 3 fixed to the lower surface of the upper floor structure F2 such as an upper floor slab, and upper and lower runners 2 and 3 It is composed of a large number of studs 4 built vertically between them. As shown in FIG. 2, the studs 4 are arranged in a staggered arrangement along the wall core.

  The interior board material 5 is fixed to the spacer 4 by screws and / or an adhesive as a lower material, and the interior board material 6 is fixed to the outer surface of the interior board material 5 by staples and / or an adhesive as the upper material. . The interior board materials 5 and 6 are continuous over the entire height of the partition wall 1 and extend from the upper surface of the floor structure F1 to the lower surface of the upper floor structure F2. A hollow layer (hollow part) 8 is formed between the interior board members 5 on both sides as a substantially sealed concealing space. The hollow layer 8 is filled with a heat insulating and sound absorbing material 7. The heat insulating / sound absorbing material 7 is inserted between the studs 4 as shown in FIG.

For example, the following building materials are used as constituent members of the partition wall 1.
・ Lower runner 2: Light weight steel (steel runner) C-75mm x 40mm x 0.8mm
Upper runner 3: Light weight steel (steel runner) C-75mm x 40mm x 0.8mm
・ Space pillar 4: Light weight steel (steel stud) C-65mm × 45mm × 0.8mm
・ Interior board material 5: Reinforced gypsum board ・ Thickness 21mm (Yoshino Gypsum Co., Ltd. product “Tiger Board Type Z”)
・ Interior board material 6: Hard plaster board ・ Thickness 9.5mm (Yoshino Gypsum Co., Ltd. product “Tiger Super Hard”)
・ Insulation and sound absorbing material 7: Glass wool 24k ・ Thickness 50mm

  4 is a longitudinal sectional view showing a partition wall structure according to an embodiment of the present invention, and FIG. 5 is a partial cross-sectional view of the partition wall structure shown in FIG. FIG. 6 is a cutaway perspective view of the partition wall structure shown in FIGS. 4 and 5. In FIG. 6, illustration of the ceiling structure shown in FIG. 4 is omitted.

  The partition wall structure of the present embodiment has a configuration in which a cover wall 10 is provided on both sides of the partition wall 1. The wall 10 is composed of a wall base constructed along the wall surface of the partition wall 1 and an interior board member 15 attached to the indoor side of the wall base.

  The wall base of the wall 10 is fixed to the lower runner 12 disposed on the floor structure F1 with a slight gap (for example, 10 mm) from the wall surface of the partition wall 1 and the lower surface of the upper floor structure F2. The upper runner 13 and a number of studs 14 that are vertically built between the upper and lower runners 12, 13. The interior board material 15 is fixed to the indoor side surface of the stud 14 by screws and / or adhesives. The interior board material 15 has a desired interior finish such as painting or cloth finish on the surface (inside of the room). A hollow layer (hollow part) 18 is formed between the wall surface of the partition wall 1 and the interior board material 15.

For example, the following building materials are used as the constituent members of the wall 10.
Lower runner 12: Light weight steel (steel runner) C-40 mm x 40, 32 mm x 0.5 mm
Upper runner 13: Light weight steel (steel runner) C-40 mm x 40, 32 mm x 0.5 mm
・ Spacer 14: Light weight steel (steel stud) C-40mm × 45mm × 0.5mm
・ Interior board material 15: Gypsum board ・ Thickness 12.5mm

  A ceiling structure 20 is constructed on the ceiling portion. The ceiling foundation of the ceiling structure 20 includes a large number of ceiling suspension bolts 21 hanging from the upper floor structure F2, a field edge receiving material 23 locked to the ceiling suspension bolt 21 by hangers 22 and the like, and a field edge reception material 23. It is comprised from the field material 24 supported by this. A ceiling interior board material 25 such as a gypsum board or a rock wool sound absorbing board is fixed to the lower surface of the field edge material 24 by a locking tool such as a screw.

  The interior board material 15 of the soft wall 10 extends from the upper surface of the floor structure F1 to the ceiling interior board material 25, but its upper end terminates slightly above the ceiling surface. 10 opens greatly into the ceiling back space 28 in the upper area of the ceiling surface. In other words, the hollow layer 18 of the wall 10 communicates with the ceiling space 28 through the continuous opening 40 of the wall 10.

  A double floor structure 30 is constructed on the floor portion. The double floor structure 30 has a structure in which a large number of support legs 31 are erected on the floor structure F <b> 1 and a floor base plate 32 is supported by the support legs 31. A floor finish 33 is further laminated on the floor base plate 32.

  A partial opening 41 that opens to the underfloor space 38 is formed at a lower end portion of the interior board member 15 of the soft wall 10 at a predetermined interval in the wall core direction. The hollow layer 18 communicates with the underfloor space 38 through the partial opening 41.

  Various types of piping such as electric wiring piping, air conditioning control wiring piping, water supply piping, or hot water supply piping are installed in the hollow layer 18, the ceiling back space 28, and the underfloor space 38. FIG. 4 illustrates a metal or resin wiring box 90 as a power outlet as a building equipment or wiring device that can connect these pipes. An electric wire pipe 91 (only a part is shown) is applied in the hollow layer 18, and an end portion of the electric wire 92 (only a part is shown) is connected to the wiring device 93. The electric wire pipe 91 is made of a metal tube or a resin tube through which the electric wire 92 can be passed, and is fixed to the spacer 14 or the like by a locking tool or the like and supported in the hollow layer 18.

  7 is a longitudinal sectional view showing a configuration of the partition wall structure according to the comparative example, and FIG. 8 is a cutaway perspective view of the partition wall structure shown in FIG.

  The partition wall structure shown in FIG.7 and FIG.8 has the upper wall 100 on the both sides of the partition 1 like the partition wall structure (FIGS. 4-6) of a present Example. The wall base of the soft wall 100 includes a lower runner 102, an upper runner 103, and a stud 104. Unlike the above-described interior board material 15 (FIGS. 4 to 6), the interior board material 105 is constructed on the wall substrate over the entire height of the partition wall 1, and the upper floor structure F2 from the upper surface of the floor structure F1. It extends to the lower surface of the. That is, openings such as the continuous opening 40 and the partial opening 41 (FIG. 4) described above are not formed in the interior board material 105.

  Therefore, a hollow layer (hollow portion) 108 formed of a substantially sealed concealing space is formed between the wall surface of the partition wall 1 and the interior board material 105. That is, the hollow layer 108 of the soft wall 100 is isolated from the ceiling back space 28 and the underfloor space 38 by the interior board material 105.

  FIG. 9 is a diagram showing the sound insulation performance of each wall body. 9 shows the sound insulation performance of the partition wall 1 shown in FIGS. 1 to 3, the sound insulation performance of the partition wall structure of this embodiment shown in FIGS. 4 to 6, and the partition wall of the comparative example shown in FIGS. The sound insulation performance of the structure is shown.

Partition wall 1 illustrated in FIGS. 1 to 3, as shown in FIG. 9, to exert a single sound insulation performance of the sound insulation performance TL _D -56. However, this is a sound insulation performance obtained in a state where no building equipment such as the wiring box 90 is provided on the wall surface of the partition wall 1, and when the building equipment such as the wiring box 90 is provided on the wall surface of the partition wall 1. Will cause cross-sectional defects in the interior board materials 5 and 6. Accordingly, such a high sound insulation performance cannot be obtained unless the special treatment for compensating for the cross-sectional defect is performed, and the desired fire resistance performance of the partition wall 1 cannot be ensured.

  On the other hand, in the partition wall structure of the comparative example shown in FIG. 7 and FIG. 8, since the building equipment such as the wiring box 90 can be attached to the wall surface of the wall 100, the desired fire resistance performance of the partition wall 1 is ensured. can do. In addition, as shown in FIG. 9, in the frequency range exceeding 250 Hz, the sound insulation performance is remarkably improved by installing the cover wall 100.

In the partition wall structure of the comparative example shown in FIG. 7 and FIG. 8, it was originally thought that at least the sound insulation performance (TL _D -56) of the partition wall alone (FIGS. 1 to 3) could be secured. In the low frequency range of 250 Hz or less, a phenomenon that the sound insulation performance is greatly reduced occurs. For this reason, it is an experiment of the present inventors that the sound transmission loss of the partition wall structure is significantly lower than the sound transmission loss of the partition wall alone. Confirmed by. This is considered due to the occurrence of a resonance phenomenon in which the hollow layer 108 is an air spring. That is, it was found that the sound insulation performance (TL _D -56) of the partition wall alone (FIGS. 1 to 3) cannot be secured in the partition wall structure (FIGS. 7 and 8) of the comparative example.

On the other hand, in the partition wall structure of the present embodiment shown in FIGS. 4 to 6, in the frequency range exceeding 250 Hz, the significant improvement in the sound insulation performance as in the partition wall structure of the comparative example (FIGS. 7 and 8) is observed. Although not possible, the phenomenon of a decrease in sound insulation in the low frequency range (250 Hz or less) does not occur. For this reason, in the partition wall structure (FIGS. 4 to 6) of the present invention, it is possible to ensure the intended fire resistance of the partition wall 1 and the sound insulation performance (TL _D -56) of the partition wall alone. This is because, as a result of opening the hollow layer 18 to the ceiling space 28 and / or the underfloor space 38 by the continuous opening 40 and / or the partial opening 41, the resonance phenomenon using the hollow layer 18 as an air spring could be suppressed. This is an action / effect that depends on

  10 is a longitudinal sectional view showing a configuration of a partition wall structure according to another embodiment of the present invention, and FIG. 11 is a cutaway perspective view of the partition wall structure shown in FIG.

  In the partition wall structure of the present embodiment, the interior board material 15 and the perforated plate 16 are attached to the wall base of the soft wall 10 '. The perforated plate 16 has a large number of small diameter or small size through holes 42. As the perforated plate 16, for example, a perforated gypsum board in which a large number of circular or polygonal through holes are formed can be suitably used. In addition, a perforated board building material having a thickness of about 3 to 15 mm and having a plurality of through holes perforated, such as a perforated slate board, a perforated hard fiber board, a perforated plywood, a perforated metal plate, etc. These perforated face materials may be used as the perforated plate 16. The aperture ratio (face material aperture ratio) of this type of perforated plate 16 is generally about 3 to 30%. If desired, a perforated board having a configuration in which a backing material such as a glass fiber sheet or kraft paper is disposed on the back surface of the through hole may be used as the perforated plate 16.

  The hollow layer 18 of the soft wall 10 ′ communicates with the indoor space through the through hole 42 of the perforated plate 16. When the ceiling structure 20 is constructed as shown by a virtual line (broken line) in FIG. 10, the hollow layer 18 may be communicated with the ceiling space 28 by the through hole 42 of the perforated plate 16. Further, when the double floor structure 30 (FIG. 4) is applied to the floor portion as in the above-described embodiment, the hollow layer 18 is formed by the through holes 42 of the perforated plate 16 in the same manner as the partial opening 41 shown in FIG. May be communicated with the underfloor space 38 (FIG. 4).

  The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above-described embodiments, and various modifications or changes can be made within the scope of the present invention described in the claims. Is possible.

  For example, the partition wall structure in each of the above embodiments has a structure in which the barrier walls 10 and 10 ′ are provided on both sides of the partition wall 1. The present invention may be applied to the structure.

  Moreover, the structure of the partition 1 which comprises a partition wall structure is not limited to the structure of the said Example, For example, the partition wall of arbitrary structures, for example, the partition wall of a non-stud structure, the partition wall of a wooden frame structure, etc. However, the partition wall structure of the present invention may be applied.

  Furthermore, the base of the soft wall 10, 10 'constituting the partition wall structure is not limited to the steel base and the steel base of the runner. 10 'may be constructed.

  Further, the interior board material 15 to be constructed on the indoor side surfaces of the soft walls 10 and 10 'is limited to plaster boards such as reinforced gypsum board, structural gypsum board, sizing gypsum board, decorative gypsum board, and ordinary hard gypsum board. For example, gypsum board, slag gypsum board, fiber-reinforced gypsum board (trade name "Tiger Glass Rock (registered trademark)" (product of Yoshino Gypsum Co., Ltd.)), calcium silicate board, cement A system board (“Delacrete” (registered trademark) or the like), a wood-based plywood, a ceramic siding or the like may be used as the interior board material 15.

  The partition wall structure of the present invention can be suitably used as a door boundary wall, a boundary wall, or a fire-resistant partition wall of a medium-to-high-rise building such as a mid-to-high-rise apartment house or a mid-to-high-rise hotel. A wall for building equipment installation will greatly improve the degree of freedom of construction equipment installation and construction.

According to partition wall structure of the present invention to prevent the air spring phenomenon that generates resonance in the low frequency range (bass resonance), it is possible to ensure the original sound insulation performance bulkhead, for example, the TL _D -56 When partition walls that have sound insulation performance are used as partition walls, at least the boundary walls or boundary walls of apartment buildings that exhibit the original sound insulation performance (TL _D- 56), or partitions between guest rooms of accommodation facilities, etc. can do.

  Further, according to the partition wall structure of the present invention, it is possible to avoid a cross-sectional defect of the partition wall, so that a wall body that requires both sufficient sound insulation performance and sufficient fire resistance performance (for example, a boundary wall between dwelling units of an apartment house) (Or the wall) is particularly advantageous, and its practical effect is remarkable.

DESCRIPTION OF SYMBOLS 1 Partition 2, 12 Lower runner 3, 13 Upper runner 4, 14 Spacer 5, 6, 15 Interior board material 7 Insulation / sound absorbing material 8, 18 Hollow layer (hollow part)
10, 10 'Perforated wall 16 Perforated plate 20 Ceiling structure 28 Ceiling back space 30 Double floor structure 38 Underfloor space 40 Continuous opening 41 Partial opening 42 Through hole 90 Wiring box (building equipment)
W1 Bulkhead W2 Bushi wall F1 Floor structure F2 Upper floor structure

Claims (6)

A partition wall of a dry construction method that is vertically built between the floor structure and the upper floor structure and is constructed as a continuous wall body from the floor structure to the upper floor structure, and formed on at least one side of the partition wall In the partition wall structure having a fussy wall,
The soft wall includes an interior board material that forms an indoor side wall surface, a hollow layer formed between a wall surface of a partition wall and the interior board material, and the hollow layer and an indoor space, a ceiling back space, or an underfloor space. A partition wall structure characterized by having an opening that is always in communication with a ventilation state.   A ceiling part structure forming a ceiling space is constructed under the upper floor structure, and the opening is continuous with the upper part of the interior board material so as to communicate the hollow layer and the ceiling space. The partition wall structure according to claim 1, wherein the partition wall structure is a continuous opening or a partial opening formed intermittently.   The wall surface formed by the interior board material is continuous from the floor structure to the lower surface of the upper floor structure, and at least a part of the interior board material has a large number of small diameters communicating the hollow layer and the indoor space. The partition wall structure according to claim 1, wherein the partition wall structure is a perforated plate in which small-sized through holes are dispersedly arranged, and the through holes constitute the opening that communicates the hollow layer with the indoor space. .   A double floor structure forming an underfloor space is constructed on the floor structure, and the opening is continuously or intermittently provided at a lower portion of the interior board material so as to communicate the hollow layer and the underfloor space. The partition wall structure according to claim 1, wherein the partition wall structure is a continuous opening or a partial opening formed. The septum Sakaikabe or Tosakaikabe collective housing or a partition wall between rooms accommodation, any one of claims 1 to 4, characterized in that it has a TL _D -50 or more sound insulation performance The partition wall structure described in the item.   The partition wall structure according to any one of claims 1 to 5, wherein the partition wall is a partition wall having a fireproof structure that forms a fireproof compartment or a fireproof compartment.

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