JP5296600B2 - Partition wall structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure a symmetric property of a wall, and to effectively prevent impact noise etc. from being transmitted to the next door or the next room without largely increasing the thickness of the wall. <P>SOLUTION: The partition wall (50) of a hollow triple-wall structure includes a center wall (51) of a fire-resistant structure having a center face material section (60) arranged at the position of a wall core, and outer walls (52) having outer face material sections (70). The outer face material sections have hollow parts (68) of the same thicknesses at both sides of the center face material section. The center wall includes a stud (61) supporting the center face material section by a panel strip (67) of a sound insulating material. The outer wall includes a stud (64) supporting the outer face material section by a panel strip (77) of a sound insulating material. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a partition wall structure, and more particularly, to a partition wall structure of a dry construction method that is constructed as a partition wall such as a door wall, a boundary wall, or a fireproof partition wall of a medium to high-rise building.

  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 of the studs, etc. have been particularly studied, and as a result, it is comparable to or exceeds the reinforced concrete wall. A partition wall structure with a dry construction method that exhibits high sound insulation performance has been developed, and has already been put into practical use as a boundary wall or a boundary wall of a middle-high-rise apartment house or a middle-high-rise hotel.

  In general, this type of partition wall is a hollow double wall having a configuration in which face materials of each chamber are arranged on both sides of a hollow portion (air layer). If desired, a sound absorbing material such as glass wool is inserted or filled into the hollow portion.

  In such a partition wall, a face material is further arranged in the wall body to divide the hollow portion, and an asymmetric hollow portion is formed by making the dimensions of the hollow portions on both sides different from each other. A partition wall of a hollow triple wall structure configured to improve performance is described in JP-A-8-109687 (Patent Document 1).

  However, in the partition wall of the dry construction method that is installed as a partition wall that divides each dwelling unit, room, or guest room such as an apartment house or a hotel, the conditions of each dwelling unit or each room are usually made uniform, and the partition wall Because the dwelling unit or room on either side must be assumed as a noise source or fire source, except for decorative materials (cloth, decorative plywood, etc.) for wall finishing, face materials and hollow parts (air The layers are arranged symmetrically with respect to the wall core (wall body center).

  Moreover, in an actual building, various electric wiring, communication wiring, electric wire piping, water supply / drainage equipment piping, etc. are wired or piped in the hollow part of a partition wall. Many wires or pipes are connected to building equipment such as wall-embedded wiring boxes and water supply / drainage sanitary ware. Even if the opening portion of the face material provided on the wall surface for such a building equipment appliance can be airtightly processed around the appliance or the gap around the piping by a hole filling process or the like, even if it can be airtightly processed, As described in Japanese Patent No. 254454 (Patent Document 2), the sound insulation performance and fire resistance performance of the entire wall body will be reduced due to a cross-sectional defect of the interior board material.

  In order to prevent the sound insulation performance and fire resistance performance from being deteriorated due to the installation of such building equipment, a partition wall of a hollow quadruple wall structure in which a soft wall (hollow part and face material) is further formed on the indoor side of the partition wall is provided. Are known.

  Further, as a partition wall structure different from the partition structure of the hollow double wall, the hollow triple wall and the hollow quadruple wall type, the applicant assigns a surface such as a gypsum board or a calcium silicate board to only one side of the stud. Japanese Patent Application No. 2001-115011 (Japanese Patent Application Laid-Open No. 2002-369891 (Patent Document 3)) proposes a fire-resistant partition wall having a single wall structure having a structure in which a material is attached. Although the partition wall structure of this configuration exhibits the required fire resistance, it does not have a hollow portion, so it is difficult to employ it as a structure of a door wall or a boundary wall that requires high sound insulation performance.

JP-A-8-109687 JP 2001-254454 A JP 2002-369891 A

  Impact sound such as collision sound and impact sound generated when a person or object collides with or collides with one side of the partition wall, and opening / closing sound of doors such as hanging cabinets and built-in furniture (hereinafter referred to as "impact sound etc." ")" Is known to be perceived as noise in adjacent dwelling units (adjacent doors) or adjacent rooms. In buildings such as apartment buildings constructed in recent years, the background noise level in the room has decreased due to the design and construction that emphasizes high airtightness and sound insulation in the dwelling unit or in the room. As a result, there is a tendency that the occupant is consciously or aware of the impact sound or the like of the adjacent door or the adjacent room via the door boundary wall or the boundary wall.

  For this reason, development of a partition wall structure with improved sound insulation performance is desired so that the impact sound of other dwelling units or rooms can be effectively sound-insulated, but the dimensional change (asymmetry) of the hollow part (air layer) Therefore, the structure (Patent Document 1) that improves the sound insulation performance of the entire wall body is difficult to adopt as a partition wall structure such as a boundary wall of an apartment house where symmetry of the face material and the hollow portion is required.

  For this reason, in order to prevent such noise propagation such as impact sound, a hollow quadruple wall partition wall structure in which a fusible wall is further formed on both sides of the double wall partition wall is a boundary wall of the apartment house. There is a tendency to be adopted as a structure. However, the hollow quadruple wall type partition wall has a large wall thickness. Therefore, when such a partition wall is employed, the effective floor area in the room is reduced.

Moreover, when the sound insulation performance of this type of partition wall was measured, an unexpected result was produced in which the sound insulation performance (TL _D ) of the wall body deteriorated as compared with the partition wall without the cover wall. This is considered to be caused by the fact that the air layer of the soft wall portion acts as an air spring and a resonance phenomenon in a low frequency range (100 to 250 Hz) occurs.

This invention is made | formed in view of such a subject, The place made into the objective is between the lower runner arrange | positioned on a floor structure, and the upper runner fixed to the upper floor structure. A metal or steel stud was installed vertically and the stud was supported by the upper and lower runners, and a face material was attached to the studs made of this stud, and it was constructed as a continuous wall from the floor structure to the upper floor structure. In the partition wall structure of the dry construction method, which is used as a partition wall such as a door wall, a boundary wall or a fire-resistant partition wall of a medium- to- high-rise building, it ensures the symmetry of the wall and greatly increases the wall thickness. An object of the present invention is to provide a partition wall structure capable of effectively preventing noise from being transmitted to an adjacent door or an adjacent room without causing an impact sound or the like.

In order to achieve the above object, the present invention provides a metal or steel stud vertically installed between a lower runner disposed on a floor structure and an upper runner fixed to the upper floor structure. In the partition wall structure of the dry construction method in which the stud is supported by the upper and lower runners, and the face material is attached to the stud made of the stud, and is constructed as a continuous wall body from the floor structure to the upper floor structure.
It is composed of a central wall of a fireproof structure having a central face material portion arranged at a wall core position, and outer walls on both sides having outer face material portions arranged on both sides of the central face material portion, It has a hollow triple wall structure in which hollow portions of the same thickness are formed on both sides of the central face member,
The center wall has a stud between the studs arranged on one side of the center face member and attached to the center face member only on one side through a siding plate of an acoustic insulating material,
Each of the outer walls has a stud between the studs arranged inside the wall of the outer face member and attached to the outer face member only on one side thereof through a siding plate of an acoustic insulating material,
The central face member is formed of a board of non-combustible material or semi-incombustible material or a laminate thereof, and has a thickness of 40 mm or more, and provides a partition wall structure.

  According to the above configuration of the present invention, each of the central wall and the outer wall is a fire-resistant structural wall having a single wall structure having a configuration in which a face material is attached to one side of a stud, and the wall body of such a single wall structure is hollow. The partition wall is formed in three layers through the air layer of the part, thereby forming the partition wall of the hollow triple wall structure.

  In the present invention, the central face member is disposed at the wall core position, and a hollow portion of the same thickness is formed on both sides of the central face member, so that the partition wall required for the boundary wall of the apartment house is symmetrical. Sex is secured.

  In addition, according to the present invention, the fire resistance of the partition wall is ensured by the central wall of the fireproof structure, so that the fire resistance of the partition wall is not impaired, building equipment, wiring equipment, piping / wiring, furniture / equipment, etc. Can be installed or fixed in the wall or on the wall.

  Furthermore, according to the partition wall structure having the above-described configuration, it is possible to effectively prevent an impact sound or the like from being transmitted to the adjacent door or the adjacent room without greatly increasing the wall thickness. This is mainly because (1) the impact or vibration applied to the outer face member is attenuated by the buffering action of the siding plate of the acoustic insulation material, and the sound pressure level of the generated sound generated in the hollow part is reduced, 2) The sound generated from the inner surface of the outer face member is attenuated by the sound transmission loss of the central face member and the outer face member, and (3) Unlike the partition wall structure of the hollow quadruple wall structure, 2 Since only two hollow portions are provided (therefore, the number of places where the resonance phenomenon can occur is reduced to two), and the dimension of each hollow portion in the wall thickness direction can be set relatively large. This is thought to be due to the fact that the resonance phenomenon in the frequency range can be prevented and a decrease in sound insulation performance due to the air spring action can be avoided.

From another viewpoint, the present invention is a construction method of the partition wall structure having the above-described configuration,
The first unit partition wall is formed by fixing the face material to only one side of the studs through the siding plate of the acoustic insulation material, and the face material is arranged at the wall core position to form the central face material part, Thereby, the process of constructing the central wall of the fireproof structure,
A second unit partition wall formed by fixing a face material to only one side of the studs through a siding plate of an acoustic insulating material is built in a position on one side of the first unit partition wall, Forming an outer face member at a position on one side of the central face member;
A third unit partition wall in which the face material is fixed only to one side of the studs through the siding plate of the acoustic insulating material is built in the position on the other side of the first unit partition wall, Forming an outer face material portion at a position on the other side of the central face material portion,
A dry partition wall construction method is provided, wherein the first, second, and third unit partition walls form an integral partition wall having a hollow triple wall structure.
From still another aspect, the present invention has a fireproof structure center wall having a center face member disposed at a wall core position, and outer face member portions disposed on both sides of the center face member. A hollow triple wall structure composed of outer side walls on both sides and formed with hollow portions of the same thickness on both sides of the central face member is vertically built between the floor structure and the upper structure, A partition wall structure construction method for constructing a continuous wall body from the body to the upper floor structure,
The first unit partition wall is formed by fixing the face material to only one side of the studs through the siding plate of the acoustic insulation material, and the face material is arranged at the wall core position to form the central face material part, Thereby, a step of constructing a central wall of a fireproof structure provided with a stud disposed on one side of the central surface material portion and supporting the central surface material portion via a siding plate of an acoustic insulating material;
A second unit partition wall formed by fixing a face material to only one side of the studs through a siding plate of an acoustic insulating material is built in a position on one side of the first unit partition wall, An outer face member is formed at a position on one side of the central face member, and the outer face member is arranged on the inner wall of the outer face member and supported by a siding plate of an acoustic insulating material. Forming the outer wall with studs to perform;
A third unit partition wall in which the face material is fixed only to one side of the studs through the siding plate of the acoustic insulating material is built in the position on the other side of the first unit partition wall, An outer face member is formed on the other side of the central face member, and the outer face member is disposed inside the wall of the outer face member and supports the outer face member through a siding plate of an acoustic insulating material. Forming the outer wall with studs to
A dry partition wall construction method is provided, wherein the first, second, and third unit partition walls form an integral partition wall having a hollow triple wall structure .

  According to the partition wall structure of the present invention, in the partition wall structure of a dry construction method that is constructed as a partition wall such as a boundary wall, a boundary wall, or a fire-resistant partition wall of a medium-to-high-rise building, while ensuring the symmetry of the wall body, Without greatly increasing the thickness, it is possible to effectively prevent the impact sound and the like from being transmitted to the adjacent door or the adjacent room. Moreover, according to the construction method of this invention, such a partition wall can be constructed | assembled by building in three unit partition walls.

It is a longitudinal cross-sectional view of the partition which shows the partition wall structure of the conventional hollow double wall structure. 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 partition wall structure of the conventional hollow quadruple wall structure which formed the fussy wall on both sides. 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 of the partition which shows the partition wall structure of the hollow triple wall structure which concerns on this invention. FIG. 8 is a partial cross-sectional view of the partition wall shown in FIG. 7. FIG. 9 is a cutaway perspective view of the partition wall shown in FIGS. 7 and 8. It is a fragmentary cross-sectional view which shows the three unit partition walls which comprise the partition wall of this invention. It is a fracture | rupture perspective view which shows the three unit partition walls which comprise the partition wall of this invention. FIG. 12 is a cutaway perspective view schematically showing a state where the three unit partition walls shown in FIG. 11 are assembled. It is a diagram which shows the sound insulation performance of three types of partition wall structures including the partition wall structure which concerns on this invention. It is a diagram which shows the acoustic characteristic of an impact sound.

  According to a preferred embodiment of the present invention, the outer face material portion (70) is composed of a face material laminate including a gypsum board, a hard gypsum board, a reinforced gypsum board, or a fiber-reinforced gypsum board as a face material. The part (60) has a structure in which at least two reinforced gypsum boards are integrally laminated with an adhesive and / or a locking tool, and has a thickness of 40 mm (total thickness) or more. By using a hard and heavy board building material as the face material of the outer side face part (70), vibrations of the outer side face part due to external forces such as collision and impact, and impact sound in the room are suppressed, and the outer side face The sound pressure level of the sound propagating from the back surface of the material part into the hollow part is reduced. In the present application, the terms gypsum board, hard gypsum board, and reinforced gypsum board are defined according to JIS A 6901. In addition, as a fiber-reinforced gypsum board, a gypsum board (trade name "Tiger Glass Rock (registered trademark)" (product of Yoshino Gypsum Co., Ltd.)) in which a glass fiber nonwoven fabric (glass tissue) is embedded in the vicinity of the surface layer of the gypsum core material It can be preferably used.

Preferably, the siding plate (67) is made of a glass fiber felt or rock wool felt band-shaped molding material or a band-shaped molding material of a mixed material of glass fiber felt and rock wool felt, and is in the range of 10 to 350 kg / m ³ . And has a thickness of about 3 to 10 mm when not compressed, and a thickness of about 1 to 6 mm when compressed.

  If the face material is directly attached to the studs, the face material will vibrate between the studs and the generated sound tends to increase, but such a siding plate should be inserted between the face material and the studs. Therefore, it is possible to support the face material as a whole by the spread sheet plate extending over a wide range, so that the vibration of the face material is suppressed and the sound pressure level of the sound generated from the back surface of the face material is reduced. Can do.

In a preferred embodiment of the present invention, the dimension in the wall thickness direction of the hollow portion (68) is set to a value of 40 mm or more, and the wall thickness (T ₅₀ ) of the entire wall body is set to a dimension of 260 mm or less.

In another preferred embodiment of the present invention, the wall entire wall thickness (T ₅₀₎ is set to the following dimensions 260 mm, partition wall _TL D -50 or more, preferably _TL D -55 or more sound insulation performance Have.

  Preferably, the center face member (60) is made of a board of non-combustible material or semi-incombustible material or a laminate thereof, and has a thickness of 40 mm (total thickness) or more, and the studs are supported by the upper and lower runners. It consists of a metal stud or a steel stud.

  Further, in the construction method of the dry partition wall according to a preferred embodiment of the present invention, the studs are made of metal studs supported by the upper and lower runners, and the center face member is a board of non-combustible material or semi-incombustible material. Or it consists of the laminated body, it has thickness of 40 mm or more, the wall thickness of the whole wall body is set to the dimension of 260 mm or less, and a sound-absorbing material is inserted in the hollow part of the both sides of a center surface material part. . The actual construction is carried out by building the first unit bulkhead first and then building the second or third unit bulkhead, or building either the second or third unit bulkhead first. After that, it is carried out by installing the first unit partition wall.

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

  FIG. 1 is a longitudinal sectional view of a partition wall showing a conventional partition wall structure. 2 is a partial cross-sectional view of the partition wall shown in FIG. 1, and FIG. 3 is a cutaway perspective view of the partition wall shown in FIGS. In FIG. 3, the ceiling structure or floor structure shown in FIG. 1 is not shown.

  With reference to FIGS. 1-3, the partition wall of the dry-type construction method actually constructed | assembled as a boundary wall or a boundary wall of a middle-high-rise apartment house or a hotel is demonstrated.

The partition wall 1 is a dry partition wall having a hollow double wall structure having a steel base shaft. 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 wall thickness T _{1 of the} partition wall ₁ is about 135 mm.

  The interior board material 5 is fixed to the studs 4 by screws and / or an adhesive as a lower surface 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 an upper surface material. Is done. 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. Between the interior board materials 5 on both sides, a hollow portion (air layer) 8 is formed as a substantially sealed concealing space. The heat insulating / sound absorbing material 7 is inserted into the hollow portion 8. 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: Lightweight steel C-75mm x 40mm x 0.8mm
-Upper runner 3: Lightweight steel C-75mm x 40mm x 0.8mm
・ Spacer 4: Lightweight steel 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

  The reinforced gypsum board is a gypsum board obtained by coating a gypsum core containing glass fibers with a gypsum board base paper, and is a gypsum board with enhanced fire resistance. The hard gypsum board is a hard, high specific gravity and high strength gypsum board with increased specific gravity, bending fracture load and surface hardness, and reduced water absorption.

  As shown in FIG. 1, 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.

  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.

  FIG. 13 is a diagram showing the sound insulation performance of three types of partition wall structures including the partition wall structures shown in FIGS.

Partition walls 1 of the structure shown in FIGS. 1 to 3 is a sound insulating wall of sound insulation performance _TL D -56, exhibits sound transmission loss of more than 40dB with respect to the noise frequency 125 Hz.

FIG. 14 is a diagram showing the acoustic characteristics of impact sound. FIG. 14 exemplifies the acoustic characteristics of the hitting sound “dong” that is generated when the wall on one side of the partition wall is struck by hand. In the acoustic characteristics shown in FIG. 14 , the hitting sound is noise having a sound pressure level peak at a frequency of 125 Hz. Thus, the acoustic characteristic in which the peak value appears in the low frequency range is considered to be a property that is generally common to the hitting sounds in general.

  Since the interior board material 5 is a reinforced gypsum board having a thickness of 21 mm and the interior board material 6 is a hard gypsum board having a thickness of 9.5 mm, the partition wall 1 has a wall surface having relatively high rigidity and hardly vibrates. However, according to the experiments by the present inventors, when the wall surface on one side is struck with a predetermined force as shown by arrows in FIGS. 1 and 2, the interior board materials 5 and 6 vibrate and the interior facing the hollow portion 8. A relatively loud impact sound using the surface of the board material 5 as a sound source was generated in the hollow portion 8. That is, as a result of the sand bag striking test simulating a state in which the wall surface was struck by hand, the noise level of the striking sound generated in the hollow portion 8 reached 80 dB (A). The impact sound transmitted through the interior board materials 5 and 6 (one-side partition wall portion 9) on the opposite side and propagated from the opposite wall surface to the indoor space. Although the impact sound was sound-insulated by the heat insulating and sound absorbing material 7 and the interior board materials 5 and 6, the noise level measured in the indoor space on the non-sound source side was 55 dB (A). Therefore, the blocking performance of the one-side partition wall portion 9 against the impact sound is only 25 dB (A).

  FIG. 4 is a longitudinal sectional view showing a conventional partition wall structure in which a fusible wall is formed on both sides, 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 and the floor structure shown in FIG. 4 is omitted.

4 to 6 illustrate a partition wall 10 having a partition wall structure in which a wall 11 is further provided on both sides of the partition wall 1 illustrated in FIGS. 1 to 3. The cover wall 11 includes a wall base constructed along the wall surface of the partition wall 1 and an interior boat material 15 attached to the indoor side of the wall base. The wall thickness T _{10 of the} partition wall ₁₀ is about 260 mm.

  The wall base of the wall 11 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 portion (air layer) 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: Lightweight steel C-40mm × 40, 32mm × 0.5mm
・ Upper runner 13: Light weight steel C-40mm × 40, 32mm × 0.5mm
・ Spacer 14: Lightweight steel C-40mm × 45mm × 0.5mm
・ Interior board material 15: Gypsum board ・ Thickness 12.5mm

  Various types of wiring / piping such as electric / communication wiring, wiring piping, air conditioning control wiring piping, water supply piping, or hot water supply piping can be applied to the hollow portion 18. A metal or resin wiring box 90 of a power outlet is shown by a broken line in FIG. 4 as a building equipment or wiring device that can connect these wirings and pipes. An electric wire pipe 91 (only a portion is shown) is constructed in the hollow portion 18, and an end portion of the electric wire 92 (only a portion 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 portion 18. According to such a partition wall structure having the wall 11, building equipment and wiring equipment are arranged on the boundary wall of the apartment house, or a hanging cabinet, a wall-mounted TV, etc. are fixed to the boundary wall of the apartment house. It becomes possible to do.

  As described above, in the partition wall 10 configured to dispose the building equipment or wiring apparatus on the wall surface of the softening wall 11, no cross-sectional defect occurs in the interior board members 5 and 6 of the partition wall 1. Therefore, it is considered that the partition wall 10 shown in FIGS. 4 to 6 exhibits superior performance in both fire resistance and sound insulation performance compared to the partition wall 1 shown in FIGS.

However, according to experiments by the present inventors, the partition wall 10 exhibits a relatively good sound insulation performance in a frequency range exceeding 250 Hz, as shown in FIG. 13, but the sound insulation performance of the partition wall 10 is a frequency of 250 Hz or less. There was a significant decline in the area. For this reason, the partition wall 1 is a sound insulation wall having the sound insulation performance TL _D -56, whereas the partition wall 10 provided with the cover wall 11 is found to obtain only the sound insulation performance TL _D -49. That is, an unexpected result that the sound insulation performance (TL _D ) of the partition wall structure is lowered due to the installation of the wall 11 is produced.

  According to the experiments by the present inventors, when the wall surface on one side is struck with a predetermined force as shown by arrows in FIGS. 4 and 5, the interior board material 15 vibrates and the interior board material 15 facing the hollow portion 18 is vibrated. A relatively loud impact sound with the surface as a sound source was generated in the hollow portion 18. Since the interior board material 15 is a gypsum board having a thickness of 12.5 mm, it is relatively low in rigidity and therefore easily vibrates, so that the noise level of the hitting sound generated in the hollow portion 18 reaches 90 dB (A). did. The hitting sound was transmitted through the partition wall 1 and the non-sound source side softening wall 11 and propagated from the opposite wall surface to the indoor space. Although the impact sound was sound-insulated by the heat insulating and sound absorbing material 7 and the interior board materials 5, 6, and 15, the noise level measured in the indoor space on the non-sound source side was 60 dB (A). Therefore, the blocking performance of the partition wall 1 and the non-sound source side wall 11 against impact sound is 30 dB (A).

  As described above, in the partition wall 10 in which the barrier wall 11 is provided on both sides of the partition wall 1, a relatively large impact sound is generated in the hollow portion 18, and sufficient barrier performance cannot be obtained by the partition wall 1 and the barrier wall 11. From the above, it was found that it was difficult to effectively insulate the hitting sound. An air spring action in which the hollow portion 18 of the wall 11 acts as an air spring can be considered as a reason why the partition wall 1 and the wall 11 do not provide sufficient blocking performance.

  7 is a longitudinal sectional view of a partition wall showing a partition wall structure according to the present invention, and FIG. 8 is a partial transverse sectional view of the partition wall shown in FIG. FIG. 9 is a cutaway perspective view of the partition wall shown in FIGS. 7 and 8. In FIG. 9, the ceiling structure and the floor structure shown in FIG. 7 are not shown.

  The partition wall 50 according to the embodiment of the present invention is formed on the both sides of the central face member 60 disposed at the wall core position, the pair of outer face members 70 forming the wall surfaces on both sides, and the central face member 60. And a hollow portion (air layer) 68 of the same thickness. As shown in FIG. 7, the hollow portion (air layer) 68 is formed substantially symmetrically with respect to the wall core. The central face material portion 60 is a wall body corresponding to the partition wall 1 shown in FIGS. 1 to 6, and is composed of a laminate in which two face materials are bonded together with an adhesive, and is shown in FIGS. 1 to 6. The hollow portion corresponding to the hollow portion 8 is not provided. Moreover, although the outer side surface material part 70 and the hollow part 68 are wall body parts corresponded to the fleece wall 11 shown by FIGS. 4-6, the outer side surface material part 70 bonded two surface materials together. It consists of a face material laminate.

  The wall base of the partition wall 50 is between a pair of lower runners 62 disposed on the floor structure F1, a pair of upper runners 63 fixed to the lower surface of the upper floor structure F2, and upper and lower runners 62, 63. It is composed of a large number of studs 61 and 64 installed vertically. The studs 61 are arranged at intervals of 606 mm, and the studs 64 are also arranged at intervals of 606 mm.

  The interior board member 65 constituting the central face member 60 is fixed to one side surface of the stud 61 by a locking tool such as a screw. The interior board 66 constituting the central face material portion 60 is fixed to the outer surface of the interior board material 65 by staples and / or adhesives. A laying board 67 is interposed between the interior board member 65 and the spacer 61 as an acoustic insulating material. The mating plate 67 extends over the entire height of the stud 61. The siding board 67 prevents the transmission of the solid propagation sound due to the vibration absorption effect.

  The runners 62 and 63 are arranged in parallel on both sides of the central face member 60, and the studs 64 are arranged along each surface of the central face member 60. An interior board member 75 constituting the outer side surface member 70 is fixed to one side surface of the intermediate post 61 by a locking tool such as a screw. The interior board 76 constituting the exterior side member 70 is fixed to the exterior surface of the interior board 75 by staples and / or adhesives. The interior board material 76 has a desired interior finish such as painting or cloth finish on the surface (inner side surface). A laying plate 77 is interposed between the interior board member 75 and the spacers 64 as an acoustic insulating material. The laying plate 77 extends over the entire height of the stud 64. The laying plate 77 prevents the transmission of the solid propagation sound due to the vibration absorption effect. The interior board members 75 and 76 constitute the outer face material portion 70. A hollow portion (air layer) 68 is formed between the face member portions 60 and 70. A heat insulating and sound absorbing material 69 is inserted into the hollow portion 68.

For example, the following building materials are used as the constituent members of the partition wall 50.
・ Lower runner 62: Lightweight steel C-50mm × 40, 32mm × 0.5mm
Upper runner 63: Lightweight steel C-50mm × 40, 32mm × 0.5mm
・ Space pillars 61 and 64: Lightweight steel C-50mm × 45mm × 0.5mm
・ Interior board materials 65 and 66: Reinforced gypsum board ・ Thickness 21mm (Yoshino Gypsum Co., Ltd. product “Tiger Board Type Z”)
・ Interior board material 75: Gypsum board ・ Thickness 12.5mm
・ Interior board material 76: Hard plaster board ・ Thickness 9.5mm (Yoshino Gypsum Co., Ltd. product “Tiger Super Hard”)
・ Sill boards 67 and 77: Acoustic insulation made of glass fiber felt (Yoshino Gypsum Co., Ltd. product “Tiger Grass Pat”)

The material, plate thickness and number of face materials constituting the partition wall 50 are the same as the material, plate thickness and number of face materials constituting the partition wall 10 (FIGS. 4 to 6). The wall thickness T _{50 of the} partition wall ₅₀ is about 200 mm, which is larger than the wall thickness T ₁ (about 135 mm) of the partition wall 1 (FIGS. 1 to 3), but the wall thickness T of the partition wall 10 (FIGS. 4 to 6). _The dimension is much smaller than ₁₀ (about 260 mm).

  10, FIG. 11 and FIG. 12 are a partial cross-sectional view and a cutaway perspective view showing each configuration of the three unit partition walls constituting the partition wall 50. FIG. In addition, in FIG.11 and FIG.12, the board joint of the board building material is abbreviate | omitting illustration.

  The partition 50 has a structure in which the three unit partitions shown in FIGS. 10 and 11 are assembled together as shown in FIG. Each of the unit partitions has a structure in which interior board members 65, 66, 75, and 76 and siding plates 67 and 77 are attached to only one side of the intermediate columns 61 and 64, and the surface on the opposite side of the intermediate columns 61 and 64. Forms a vertical wall. The unit partition located at the center of the partition 50 constitutes the central wall 51 of the partition 50, and the unit partition located on both sides of the central wall 51 constitutes the outer wall 52 that forms the indoor side wall surface of the partition 50.

  The unit partition walls on both sides are built on both sides of the unit partition wall located in the center, and are assembled to the center unit partition wall with the wall faces outward (inner side). Thus, the partition wall 50 having a hollow triple wall structure is formed by the three unit partition walls (the outer wall 52, the central wall 51, and the outer wall 52). The actual construction is carried out by first building the unit partition walls of the central wall 51 and then building the unit partition walls of the outer walls 52 on both sides, or the unit partition walls constituting the outer wall 52 on one side. This is done by building the unit partition wall of the central wall 51 after building first.

  The unit partition wall constituting the central wall 51 is substantially the same fireproof partition wall as the fireproof partition wall described in Japanese Patent Application Laid-Open No. 2002-369891 (Patent Document 3), and the unit partition itself is a desired fireproof partition wall. Exhibits fire resistance. Therefore, even when the partition wall 50 is used as a partition wall of an apartment house or a guest room of a hotel, a metal wiring box 90, a wire pipe 91, a wire 92, a wiring fixture 93, etc., indicated by virtual lines Such building equipment appliances, wiring appliances, piping / wiring, etc. can be disposed in the hollow portion 68 and the interior board materials 75, 76 (surface material portion 70). Can be fixed to the partition wall 50.

The acoustic characteristics of the partition 50 are shown in FIG. Sound transmission loss of the partition wall 50, in the entire frequency range and above the sound transmission loss of the partition walls 1, 10, partition wall 50 is a sound insulation wall to demonstrate the performance of the sound insulation performance TL D _-63. Therefore, according to the present invention, although the sound insulation performance can be greatly improved as compared with the partition wall 10 formed of the same face material, plate thickness, and number, the wall thickness is greatly reduced compared to the partition wall 10. (Thus, the effective area in the room can be expanded). Moreover, unlike the partition wall 1, the partition wall 50 can install or fix building equipment, wiring equipment, piping / wiring, furniture / equipment, or the like on the wall or on the wall surface.

  According to the experiments by the present inventors, when the wall surface on one side is struck with a predetermined force as shown by the arrows in FIGS. 7 and 8, the outer surface member portion 70 vibrates and the interior board member 75 facing the hollow portion 68. The impact sound generated on the outer surface 70 is attenuated by the buffering action of the siding plate 77 and is generated in the hollow 68. The noise level of the sound was relatively low, and the noise level of the impact sound generated in the hollow portion 68 was 80 dB (A). The impact sound transmitted through the central face member 60 and the outer face member 70 and propagated from the opposite wall surface to the indoor space, but the noise level was reduced to 45 dB (A). The barrier performance of the partition wall 55 (FIGS. 7 and 8) against the impact sound is 35 dB (A).

The partition wall 50 according to the present invention is superior to the partition walls 1 and 10 of the conventional hollow double wall structure and the hollow quadruple wall structure in sound insulation performance (TL _D ), and is generated by the impact sound and door opening / closing sound of the adjacent door or the adjacent room. The room noise is considerably lower than that of the conventional partition walls 1 and 10.

  Moreover, according to the partition wall 50 according to the present invention, in the same manner as the partition wall 10 having the hollow quadruple wall structure, a hollow double-wall structure can be used in the arrangement of wall surfaces of equipment and the like and wall mounting of furniture and fixtures. It is superior to the partition wall 10 of the hollow quadruple wall structure in that the wall thickness of the wall body is considerably smaller than that of the partition wall 10 of the hollow quadruple wall structure.

  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, in the above embodiment, gypsum board, hard gypsum board and reinforced gypsum board are listed as the face materials usable in the partition wall structure of the present invention, but structural gypsum board can be used as other usable face materials. , Gypsum boards such as plasterboards, decorative plasterboards, plasterboards, slag plasterboards, fiber-reinforced plasterboards (trade name “Tiger Glass Rock (registered trademark)” (product of Yoshino Gypsum Co., Ltd.)) Non-gypsum face materials such as calcium silicate board, cement board ("Delacrete" (registered trademark), etc.), wood-based plywood, ceramic siding, etc.

  Further, as a siding plate that can be used in the partition wall structure of the present invention, in addition to a strip-shaped molding material of glass fiber felt or rock wool felt, a natural rubber material having a thickness of about 1 to 6 mm at the time of compression, a synthetic rubber system Examples thereof include a band-shaped molding material made of a material or a synthetic resin-based material, or a buffer band formed by applying a synthetic resin-based coating material on a spacer to a thickness of about 1 to 6 mm.

  Furthermore, in the said Example, although the heat insulation and sound absorption material were inserted or filled in the hollow part, it is also possible to abbreviate | omit insertion or filling of a heat insulation and sound absorption material.

  The present invention can be preferably applied to dry partition walls such as door walls, boundary walls, and fire-resistant partition walls of medium- and high-rise buildings such as medium- and high-rise apartments and medium- and high-rise hotels. According to the partition wall structure of the present invention, while ensuring the symmetry of the wall body, it is possible to effectively prevent the impact sound or the like from being transmitted to the adjacent door or the adjacent room without greatly increasing the wall thickness. it can.

50 Bulkhead 51 Central wall 52 Outer side wall 60 Central face material portion 62 Lower runner 63 Upper runner 61, 64 Spacer 65, 66, 75, 76 Interior board material 67, 77 Cover plate 68 Hollow portion (air layer)
69 Heat Insulation / Sound Absorbing Material 70 Outer Side Material F1 Floor Structure F2 Upper Floor Structure

Claims (13)

A metal or steel stud is installed vertically between the lower runner disposed on the floor structure and the upper runner fixed to the upper floor structure, and the stud is supported by the upper and lower runners. In the partition wall structure of the dry construction method, which is constructed as a wall body that is continuous from the floor structure to the upper floor structure by attaching the face material to the studs made of studs ,
It is composed of a central wall of a fireproof structure having a central face material portion arranged at a wall core position, and outer walls on both sides having outer face material portions arranged on both sides of the central face material portion, It has a hollow triple wall structure in which hollow portions of the same thickness are formed on both sides of the central face member,
The center wall has a stud between the studs arranged on one side of the center face member and attached to the center face member only on one side through a siding plate of an acoustic insulating material,
Each of the outer walls has a stud between the studs arranged inside the wall of the outer face member and attached to the outer face member only on one side thereof through a siding plate of an acoustic insulating material,
The partition wall structure is characterized in that the central face member is made of a board of non-combustible material or semi-incombustible material or a laminate thereof, and has a thickness of 40 mm or more .   2. The partition wall structure according to claim 1, wherein the outer side surface material portion is formed of a surface material laminate including a gypsum board, a hard gypsum board, a reinforced gypsum board, or a fiber-reinforced gypsum board as a surface material.   The central face material portion has a structure in which at least two reinforced gypsum boards are integrally laminated by an adhesive and / or a locking tool, and the central face material portion has a thickness of 40 mm or more. The partition wall structure according to claim 1 or 2, characterized by the above. The siding plate is made of a glass fiber felt or rock wool felt band-shaped molding material, or a band-shaped molding material of a mixed material of glass fiber felt and rock wool felt, and has a specific gravity within a range of 10 to 350 kg / m ^3. The partition wall structure according to any one of claims 1 to 3.   The dimension of the wall thickness direction of the said hollow part is set to the value of 40 mm or more, and the wall thickness of the whole wall body is set to the dimension of 260 mm or less, The any one of Claims 1 thru | or 4 characterized by the above-mentioned. Partition wall structure.   The partition wall structure according to any one of claims 1 to 5, wherein a sound absorbing material is inserted into the hollow portion. Wall overall wall thickness is set to the following dimensions 260 mm, partition wall structure according to any one of claims 1 to 6, characterized in that it has a TL D _-50 or more sound insulation performance. It is the construction method of the partition wall structure described in claim 1,
The first unit partition wall is formed by fixing the face material to only one side of the studs through the siding plate of the acoustic insulation material, and the face material is arranged at the wall core position to form the central face material part, Thereby, the process of constructing the central wall of the fireproof structure,
A second unit partition wall formed by fixing a face material to only one side of the studs through a siding plate of an acoustic insulating material is built in a position on one side of the first unit partition wall, Forming an outer face member at a position on one side of the central face member;
A third unit partition wall in which the face material is fixed only to one side of the studs through the siding plate of the acoustic insulating material is built in the position on the other side of the first unit partition wall, Forming an outer face material portion at a position on the other side of the central face material portion,
A method of constructing a dry partition wall, wherein the first, second, and third unit partition walls form an integral partition wall having a hollow triple wall structure. It is composed of a central wall of a fireproof structure having a central face material portion arranged at a wall core position, and outer walls on both sides having outer face material portions arranged on both sides of the central face material portion, A wall with a hollow triple wall structure with a hollow part of the same thickness formed on both sides of the central face material part is built vertically between the floor structure and the upper floor structure, and continues from the floor structure to the upper floor structure. A construction method of a partition wall structure for constructing a body ,
The first unit partition wall is formed by fixing the face material to only one side of the studs through the siding plate of the acoustic insulation material, and the face material is arranged at the wall core position to form the central face material part, Thereby, a step of constructing a central wall of a fireproof structure provided with a stud disposed on one side of the central surface material portion and supporting the central surface material portion via a siding plate of an acoustic insulating material ;
A second unit partition wall formed by fixing a face material to only one side of the studs through a siding plate of an acoustic insulating material is built in a position on one side of the first unit partition wall, An outer face member is formed at a position on one side of the central face member, and the outer face member is arranged on the inner wall of the outer face member and supported by a siding plate of an acoustic insulating material. Forming the outer wall with studs to perform ;
A third unit partition wall in which the face material is fixed only to one side of the studs through the siding plate of the acoustic insulating material is built in the position on the other side of the first unit partition wall, An outer face member is formed on the other side of the central face member, and the outer face member is disposed inside the wall of the outer face member and supports the outer face member through a siding plate of an acoustic insulating material. Forming the outer wall with studs to
A method of constructing a dry partition wall, wherein the first, second, and third unit partition walls form an integral partition wall having a hollow triple wall structure.   The stud is made of a metal stud supported by upper and lower runners, and the center face member is made of a board of non-combustible material or semi-incombustible material or a laminate thereof, and has a thickness of 40 mm or more, and a wall body The construction method according to claim 9, wherein the overall wall thickness is set to a dimension of 260 mm or less.   The construction method according to claim 9 or 10, wherein a sound absorbing material is inserted into the hollow portion.   The construction method according to claim 9, wherein the second or third unit partition is built after the first unit partition is built. The construction method according to claim 9, wherein the first unit partition wall is built after either one of the second or third unit partition wall is built.

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