JP3628276B2 - Sound barrier panel and its mounting method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a soundproof wall panel used as a soundproof wall provided along a railway line or a road, for example, and more particularly to a soundproof wall panel made of fiber reinforced plastic and a method for mounting the same.
[0002]
[Prior art]
Conventionally, for example, concrete or metal soundproof walls have been installed mainly on the flat ground and elevated parts of railways and roads for the purpose of mitigating noise to local residents along the line. Since these materials are relatively heavy, a predetermined effect can be obtained in terms of the prevention of noise generated from railway vehicles and automobiles and the diffusion of noise on the principle of sound insulation by a large mass.
[0003]
[Problems to be solved by the invention]
However, because concrete and metal sound barriers are heavy, it is necessary to carry heavy equipment and dedicated installation machinery at the installation location for transport and installation, especially when the installation location is a railway viaduct. The problem is that it is difficult to bring a dedicated construction machine closer to the soundproof wall installation site from the track side, and even if it can be approached, the installation work is unavoidable due to the high altitude work from under the overhead. there were.
[0004]
In addition, as seen in recent peeling from concrete railway viaducts, concrete soundproof walls have problems of partial peeling and small pieces falling due to alkali embrittlement and aging.
[0005]
An object of the present invention is to solve the above-mentioned problems, to prevent noise or to diffuse it, to prevent the occurrence of peeling of small pieces, and to easily install even if the mounting location is high. An object of the present invention is to provide a soundproof wall panel and a mounting method thereof.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the soundproof wall panel of the present invention is a soundproof wall panel having a soundproof portion composed of at least a core material and a skin material located on both sides of the core material, and the skin material Is made of fiber reinforced plastic, and the ratio of the total thickness of the soundproofing part to the thickness of each skin material is in the range of 5: 1 to 50: 1, and the lower part of the soundproofing part is a building enclosure And is provided with ribs for connecting skin materials located on both sides of the core material .
[0007]
In this soundproof wall panel, it is possible to adopt a structure in which pillars supporting the soundproof part are provided on both sides of the soundproof part, and the pillar body can be formed integrally with the soundproof part. It can also be composed of metal.
[0008]
In this way, by constructing the soundproof wall panel using a skin material made of fiber reinforced plastic having a predetermined strength and ductility, it is possible to prevent cracks, peeling and falling peculiar to brittle materials such as concrete, A good soundproofing effect can be exhibited together with the core material held in between. In addition, the mounting work can be facilitated by the light weight specific to fiber reinforced plastics.
[0009]
The method for attaching the soundproof wall panel according to the present invention includes, for example, passing the attachment holes provided in the soundproof wall panel as described above through anchor bolts that are previously installed in the building frame, and further using nuts. It comprises a method characterized by fixing a soundproof wall panel to a building frame.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described below with reference to the drawings.
1 and 2 are overall perspective views of a soundproof wall panel according to an embodiment of the present invention. FIG. 1 is a view seen from the front side, and FIG. 2 is a view seen from the back side. In actual installation, a plurality of soundproof wall panels 1 shown in the figure are provided side by side in the horizontal direction and the vertical direction to form a continuous soundproof wall. Which side is used as the vehicle traffic side depends on the application and installation location, but in the case of a railway vehicle, the back side is usually the vehicle traffic side.
[0011]
In the figure, a soundproof wall panel 1 according to the present invention includes a soundproof portion 2, a column body 3, and a mounting portion 4, which are integrally formed in this embodiment. In the present embodiment, the attachment portion 4 is provided below the soundproof portion 2. However, depending on the installation location, it may be the left and right or the upper part of the soundproof unit 2, and such a mode is also included in the present invention.
[0012]
The soundproofing part 2 is formed in a planar shape for achieving prevention of noise diffusion and prevention of falling of a track maintenance worker, and is formed in a rectangular shape so that a plurality of soundproofing parts 2 can be connected. As shown in FIG. 1, the cross-sectional structure is composed of a core material 2d located at the center, skin materials 2a, 2b located on both sides thereof, and ribs 2c connecting the skin materials 2a, 2b, which will be described later. It is integrally formed by the method. The external dimensions of the soundproofing part 2 depend on the application, but when used as a railing in a railway viaduct, the vertical dimension H is 500 to 3000 mm, preferably 1000 to 2000 mm, and the horizontal dimension (width) W is 25 m per unit. (When it is more than that, it is difficult to transport in dimension.) When connecting relatively small ones, each range in which the lateral dimension W is 500 to 2000 mm and the thickness T is 10 to 100 mm. It is preferable that it is within the range from the viewpoint of preventing the diffusion of noise and preventing the maintenance worker from falling. When the lateral dimension W is relatively large, at least a part of the soundproof portion 2 can be formed and formed in a curved portion curved along a curve such as a viaduct, and the soundproof wall can be configured to have a curved portion. .
[0013]
The core material 2d serves as a spacer for securing bending rigidity as well as soundproofing, and as the material thereof, it is preferable to use a lightweight material such as a hard urethane foam of 30 times foam, for example. Alternatively, a honeycomb material may be used. In addition, a material for adding a special function such as selecting a material having a high vibration damping effect in order to enhance the soundproofing effect may be used. The preferred thickness _{t 1} of the core 2d is in the range of 8～98Mm, more preferably in the range of 30 to 70 mm.
[0014]
Skin material 2a, 2b comprises the outer surface of the panel for soundproof walls of this invention, and is comprised with the fiber reinforced plastics. Examples of the reinforcing fiber include glass fiber, carbon fiber, and aramid fiber, and the fineness thereof is preferably in the range of 100 to 2000 dtex, but 200 to 1000 dtex is more preferable from the viewpoint of preventing falling of small pieces in the present invention. preferable. Examples of the matrix resin include an epoxy resin, an unsaturated polyester resin, a vinyl ester resin, and the like. From the viewpoint of preventing small pieces from falling in the present invention, it is preferable to use an epoxy resin. The volume content Vf of the reinforcing fiber is preferably 15 to 60%, more preferably 30 to 50%. Further, the total thickness T of the soundproof unit 2, the ratio T of the thickness _{t 2} of the skin material 2a, 2b: The _{t 2,} 5: 1 to 50: is preferably in the 1 range. Skins 2a beyond this range, the thickness t ₂ of 2b becomes thicker, lighter is impaired is a feature of the sound barrier of the present invention. On the other hand, if the skin materials 2a and 2b are thinner than this range, the strength against wind pressure, which is necessary for the soundproof wall, mainly during typhoons, may not be sufficiently developed. In particular, in order to ensure light weight, it is preferable that the weight per unit area of the soundproof portion 2 excluding the column body 3 and the mounting portion 4 described later is in the range of 10 to 60 kg / m ² .
[0015]
Further, when importance is attached to flame retardancy, it is also possible to use a highly flame retardant resin, for example, a phenol resin, as a matrix resin of the fiber reinforced plastic forming the skin materials 2a and 2b.
[0016]
The column 3 supports both sides of the soundproofing part 2, and in this embodiment, the structure is composed of a core material 3b at the center and a skin material 3a made of fiber reinforced plastic surrounding the same, as in the soundproofing part described above. It is configured. In the present embodiment, the columnar body 3 is formed such that its outer shape is tapered along the vertical direction of the soundproofing part 2, and is integrally formed with the soundproofing part 2. The column body 3 is provided as necessary when the soundproof portion 2 requires strength. For example, in order to withstand considerable wind pressure as in the typhoon season, the skin material 2a, 2b of the soundproof portion 2 is provided. It is desirable to include at least 5% or more of a layer made of carbon fiber reinforced plastic in a thickness ratio with respect to the skin material. For further strengthening, it is desirable that the skin material 3a of the column 3 also includes a layer made of carbon fiber reinforced plastic at least in a thickness ratio of 5% or more. In addition, it is necessary to prevent the soundproof wall from bending and resonating with respect to wind pressure. In this case, the types and amounts of the reinforcing fibers of the skin materials 2a and 2b and the skin material 3a in the soundproof portion and the column body portion, and the type of matrix resin By designing appropriately, the bending rigidity of both members can be increased.
[0017]
By adopting such a structure, it is only necessary to give the soundproof part 2 strength and rigidity only in the width direction between the pillars 3 and to give the pillar part strength and rigidity only in the vertical direction. Design that uses material anisotropy peculiar to fiber reinforced plastics without using wasteful materials in terms of strength and rigidity becomes possible, and further weight reduction can be realized.
[0018]
In this way, since the soundproofing part 2 as a face body has to have strength and rigidity mainly in the lateral (width) direction, the fiber reinforced plastic skin materials 2a and 2b of the soundproofing part 2 are, for example, It is preferable to include continuous reinforcing fibers extending in a direction having an inclination of 60 ° or more with respect to the extending direction.
[0019]
In this embodiment, the attachment portion 4 is formed in a triangular shape and is fixed to the building housing 6 with a chemical anchor 5a, a metal plate 5b, a nut 5c, etc. The fixing means, shape, material, dimensions, and the like are not limited to the above-described case.
[0020]
In addition, since the weight of the soundproofing part 2 which is the main part of the soundproofing wall panel of the present invention is relatively light by itself, a significant sound insulation effect cannot be expected by itself, but the weight reduction and the sound insulation performance In order to achieve both of these, after installing the soundproof wall panel at a high place such as a viaduct, for example, a metal or concrete sound insulation plate having a weight of about 8 to 30 kg / m ² that can be transported manually by an operator. This can be achieved by separately fixing the required number of sheets to the back of the soundproofing unit 2.
[0021]
The soundproof wall panel according to this embodiment having the above configuration has the following effects.
Since the soundproof part 2 and the column 3 are made of a skin material made of fiber reinforced plastic, the specific strength is higher than that of a general metal such as concrete or iron, and it is necessary as a panel for a soundproof wall. The strength can be increased and the weight can be greatly reduced, and the installation at a high place can be facilitated without using a dedicated erection device such as heavy machinery.
[0022]
In addition, when the soundproof wall panel of the present invention is applied to an elevated part of a railway or a road, a structure installed at a high place is greatly reduced in weight. The seismic performance can be improved.
[0023]
Compared to metals such as iron and aluminum alloys, fiber reinforced plastics can be made more resistant to moisture and chemicals by appropriately selecting the plastic material, and maintenance such as anti-rust coating is not required. However, for UV rays, the plastic gradually deteriorates and the physical properties such as strength decrease, so if it is assumed to be used outdoors for a long time, the surface is covered with a colored gel coat layer or pigment. It is desirable to prevent ultraviolet rays from entering the structure by using plastics colored with dyes, toners, inks and the like. On the other hand, by taking these measures, it is possible to take advantage of the freedom of color selection of colored gel coat and the complexity of forming shape of fiber reinforced plastics, which is extremely unprecedented in conventional concrete and metal products. A highly functional surface can be easily realized, and favorable results in appearance can be obtained. For example, the surface can be covered with a colored gel coat layer such as a brickwork pattern.
[0024]
The core material 2d interposed between the fiber reinforced plastic skin materials 2a and 2b can cover the entire surface with the skin material, and can completely block intrusion of moisture, ultraviolet rays and the like. The thickness t ₁ of the core 2d may be appropriately set according to the required sound insulation performance and strength characteristics.
[0025]
The soundproof wall panel of the present invention can have a mounting portion 4 for a building frame at the lower part of the structure body. As a result, the soundproof wall panel according to the present invention can be installed on the building frame by itself, and compared with a soundproof wall having a general structure that requires a pillar and a cross, it is troublesome to install. And can save time.
[0026]
At this time, since the strength and rigidity of the soundproofing part are the bending physical properties of the sandwich panel composed of the skin material and the core material, they are greatly influenced not only by the tensile and compression physical properties of the skin but also by the shearing physical properties of the core material. Therefore, when a material that places importance on lightness is selected as the material for the core material, the strength and rigidity of the soundproof portion may be reduced. In order to prevent this, it is desirable to provide a fiber reinforced plastic rib 2c (web) for connecting the opposing fiber reinforced plastic skin materials to each other in the core of the soundproof portion. By providing the rib 2c, the strength and rigidity of the soundproof portion are not affected by the shearing physical properties of the core material, and as a result, the material of the core material can be freely selected as described above.
[0027]
Also with respect to such a rib 2c, the soundproof portion 2 as a plane body may have strength and rigidity mainly in the lateral (width) direction, so that at least a part of the rib 2c is, for example, the extending direction of the column 3 It is preferable to extend in a direction having an inclination of 60 ° or more.
[0028]
It is desirable that all the parts constituting the soundproof wall panel of the present invention are integrally formed. The integral molding not only saves labor and time for assembly and joining, but also eliminates joints that are difficult to achieve high strength in a stable manner. Can be exhibited stably, and as a result, a lightweight soundproof wall panel having no useless parts can be obtained.
[0029]
As a method for manufacturing the soundproof wall panel 1 according to the present invention, any of general fiber-reinforced plastic molding methods such as a hand lay-up method and an autoclave method can be used. Moreover, each member shape | molded by continuous molding methods, such as a pultrusion method, can also be shape | molded by an assembly joining after cut | disconnecting to a suitable dimension. However, preferably, the above-mentioned integral molding is easy, and the fiber content is easily increased to achieve weight reduction, so-called RTM method or RIM method, and the injection resin diffusion material is simultaneously reduced in pressure at the molding site. It is desirable to adopt a molding method in which a liquid plastic is injected into a cavity in which reinforcing fibers are disposed, such as an integral molding method (SCRIMP method).
[0030]
Moreover, as a method of attaching the soundproof wall panel to the building frame, in addition to the mounting method by the fastening bracket in the above embodiment, for example, the attachment portion is bonded and bonded to the building frame using a resin adhesive, A method of embedding the attachment portion by mortar driving can also be applied.
[0031]
The above-described partial peeling of concrete structures and dropping of small pieces may occur not only in the soundproof wall but also in the building frame itself. Unlike the sound barrier, it is not easy to replace the building frame. However, such peeling or falling does not affect the strength and durability of the building housing itself, so preventing it from falling to the ground will prevent damage to third parties concerned. it can. In order to prevent the concrete piece peeled off from the building frame from falling onto the ground, the soundproof wall panel of the present invention has a structure at the lower part of the structure body of the soundproof wall panel 1 as shown in FIG. A cover 7 that covers the surface of the housing 6 can be attached using a mounting bolt 8 or the like so as to be detachable.
[0032]
The anchor bolts for mounting may be those that have already been embedded when the concrete of the building frame is driven, or those that have been driven by drilling after the construction of the building frame, for example, chemical anchors. Good. In order to secure the mounting strength, it is preferable that the mounting anchor bolt is a bolt having a diameter of M16 or more driven into the building housing to a depth of at least 80 mm or more.
[0033]
Further, as shown in FIG. 3, the cover 7 is attached by a method in which the structure body of the soundproof wall panel 1 is attached to the building housing 6 so as to be detachable. It can be easily inspected and, if necessary, can be repaired. In addition, for example, when implemented on a railway viaduct, if the cover is attached to the track side of the structure body by bolt fastening, the bolt loosening can be found by periodic track maintenance while being detachable. In addition, even if the bolts are loosened, the cover can be prevented from dropping on the ground.
[0034]
The material of the cover is not particularly limited, but is preferably made of the same fiber-reinforced plastic as the soundproof wall panel of the present invention, so that it is lightweight, easy to attach and detach, and has excellent surface design. For example, a cover whose outer surface is covered with a colored gel coat layer such as a brickwork pattern can be realized.
[0035]
In order to lay a cable for signals, etc., which is highly necessary particularly on a railroad track, the soundproof wall panel of the present invention has a rear surface of the structure body of the soundproof wall panel 1 as shown in FIG. 4, for example. Moreover, the trough 9 can be fixed integrally. A trough lid 10 can be attached to the trough 9. The material and fixing method of the trough 9 are not particularly limited, but preferably made of the same fiber reinforced plastic as the soundproof wall panel 1 so as not to impair the light weight of the main body and by integral molding. It can also be fixed firmly.
[0036]
The soundproof wall panel of the present invention has a structure body of the soundproof wall panel 1 as shown in FIG. 4, for example, for attaching small structures attached to roads and tracks such as signs, kiloposts, and slope marks. The holding part 11 can be integrally fixed to the back surface of the. The material and fixing method of the gripping part 11 are not particularly limited, but are preferably made of the same fiber reinforced plastic as the soundproof wall panel 1 so that the lightness of the main body is not impaired and is integrally formed. It can also be fixed firmly by.
[0037]
FIG. 5 shows a soundproof wall panel 21 according to another embodiment of the present invention. In the present embodiment, the soundproofing part 22 is configured as a flat panel, and the soundproofing part 22 is a sandwich of the core material and the skin material positioned on both sides of the core material as shown in FIG. It has a structure. In this soundproof portion 22, a metal column 23 is provided integrally with the soundproof portion 22 in this embodiment. The column body 23 extends to the lower side of the soundproof portion 22, and this extended portion is configured as a mounting portion 24 for the building frame. When the rib is provided in the soundproof portion 22, it is preferably extended in the direction 26 having an inclination of 60 ° or more with respect to the extending direction 25 of the column body 23. Moreover, it is preferable that the fiber reinforced plastic skin material of the soundproof portion 22 includes continuous reinforcing fibers extending in a direction having an inclination of 60 ° or more with respect to the extending direction 25 of the column body 23.
[0038]
Thus, the column body 23 can be made of metal, and the advantage of the column body 23 made of metal is that the metal is generally the same shape as compared to the case of fiber reinforced plastic. Since the strength is superior, as shown in the illustrated example, it is possible to easily perform a space-efficient shape design in which the protrusion of the mounting portion or the like is eliminated on the back side of the soundproof wall. However, since the strength per weight is generally inferior to that of fiber reinforced plastic, the weight increases. Therefore, when the increase in weight is suppressed to a level where there is no problem, it is preferable to use the metal column body 23.
[0039]
FIG. 6 shows a soundproof wall panel 31 according to still another embodiment of the present invention. In this embodiment, a folded portion 33 extending toward the inside (the back side of the soundproof portion 32) is provided at the top of the soundproof portion 32, and the folded portion 33 is formed integrally with the soundproof portion 32. . Thus, even if it is the shape turned up inside, since it can be shape | molded integrally and the sound is confined by the turned-up part 33, the soundproofing effect is further improved.
[0040]
FIG. 7 shows a soundproof wall panel 41 according to still another embodiment of the present invention. In this embodiment, the overlapping portion 43 is provided at the side end of the soundproof portion 42 of each soundproof wall panel 41 so that adjacent panels partially overlap each other. In this embodiment, the overlapping portion 43 is formed by halving the thickness of the panel in the soundproof portion 42, and the adjacent soundproof wall panels 41 are overlapped by overlapping the overlapping portions 43. The seam portion is configured. A slight gap is formed between the overlapping portions 43, and a filler, for example, a filler made of sponge, other sealing material or sealing agent, and other members are arranged in the gap. Also good. In this way, the overlapping portions 43 constitute a joint portion between the soundproof wall panels 41 by overlapping each other, thereby improving the appearance by the series of connected soundproof wall panels 41 and further enhancing the soundproofing effect. It is. If the filler is disposed, the soundproofing effect can be further enhanced. In FIG. 7, reference numeral 44 denotes a building frame such as a viaduct, 45 denotes an anchor bolt, and 46 denotes a mounting nut.
[0041]
FIG. 8 shows an example of a structure for mounting the soundproof wall panel 51 as shown in FIG. 5 to a building case 52 such as a viaduct, and particularly shows a case where a cover 53 for the building case 52 is attached. Yes. For example, the mounting portion 56 of the soundproof wall panel 51 is fixed by the anchor bolt 54 and the nut 55 provided in advance in the building housing 52, and the cover 53 is disposed outside the mounting portion 56. The portion is inserted into the upper surface of the building housing 52, and this portion is also fixed by cover mounting anchor bolts 57 and nuts 58.
[0042]
【Example】
Example 1
Glass fiber 0/90 ° woven fabric for soundproofing part and attachment part, glass fiber 0 / ± 45 ° multiaxial woven fabric and carbon fiber 0 ° unidirectional woven fabric for column body as reinforcing fiber of fiber reinforced plastic skin material, In addition, a glass fiber 0 / ± 45 ° multiaxial woven fabric is placed on the rib part (web part), and a 30-fold hard polyurethane foam is used as the core material of each part, and an unsaturated polyester resin is impregnated and cured by the SCRIMP method As a result, a fiber reinforced plastic soundproof wall panel 1 having a height of 1525 mm, a width of 990 mm, and a total thickness T of the soundproof portion of 53 mm as shown in FIG. 1 was obtained. At this time, the weight of the structure body of the soundproof wall panel 1 was 20.6 kg.
[0043]
As shown in FIG. 2, the structure body was attached to the building housing 6 using an M16 chemical anchor 5a, a metal plate 5b, and a nut 5c. Furthermore, the building housing 6 is rotated so that the soundproofing portion 2 of the soundproofing wall panel 1 is horizontal, and when a compressive load is applied to the soundproofing portion 2 from above vertically by a large universal testing machine, the load is 20 kN. The column body portion 3 of the soundproof wall panel was destroyed. When this load value is divided by the area of the soundproof portion 2, it is about 13 kN / m ² , and it was found that the load value has sufficient strength against wind input.
[0044]
When a 200 mm square test piece was cut out from the soundproofing part 2 and the sound insulation performance against white noise was measured, the transmission loss was 13 dB. In addition, as a result of performing the same measurement with respect to the concrete block with a total thickness of 100 mm, the transmission loss was 22 dB.
[0045]
Example 2
Glass fiber chopped strand mat, glass fiber 0/90 ° woven fabric, and carbon fiber 0 ° woven fabric are placed one by one on the front side of the soundproof part as the reinforcing fiber of the fiber reinforced plastic skin material. A foam and a 1-ply glass fiber 0/90 ° woven fabric as a skin material on the back side, and a pipe made of SUS304 having a rectangular cross section of 100 mm × 50 mm in which the column part and the attachment part are integrated, The soundproof wall panel made of fiber reinforced plastic was impregnated with the unsaturated polyester resin by the above-mentioned SCRIMP method. In order to prevent the unsaturated polyester resin from entering the pipe made of SUS304, the opening of the pipe was previously sealed with a film. At this time, the fiber direction of the carbon fiber 0 ° woven fabric makes an angle of 90 ° with respect to the direction of the SUS304 pipe forming the column, and ribs are arranged at four locations at a pitch of 320 mm in the same direction. did. The rib material was glass fiber 0 / ± 45 ° multiaxial woven fabric. The soundproof wall panel made of fiber reinforced plastic thus obtained has a soundproof portion height of 1600 mm, a total width of 1040 mm including overlapping portions as shown in FIG. 7 at both ends, and a mounting portion that protrudes 400 mm below the soundproof portion. It became a shape. Further, as an attachment portion for attaching the cover, a SUS304 metal fitting protruding 130 mm on the back side was attached. The weight of the fiber reinforced plastic soundproof wall panel body was 42 kg.
[0046]
The structure body was attached to the building frame using M16 chemical anchors and nuts. Furthermore, the building housing was rotated so that the soundproofing part was horizontal, and a compression load was applied to the soundproofing part from above vertically by a large universal testing machine. When unloading was performed with a load up to 5 kN, no change was observed in the structure body. Further, when the unloading was performed up to a load of 7 kN, a slight plastic deformation was observed in the SUS304 pipe of the mounting portion. When the load value of 7 kN is divided by the area of the soundproofing part, it becomes about 4.4 kN / m ² , and it has been found that it has sufficient strength against wind input. Regarding the transmission loss, the configuration of the soundproof portion is almost the same as that of the first embodiment, and thus the same performance was obtained.
[0047]
Example 3
In the existing railway viaduct, after the concrete block soundproof wall is cut and removed by using a wall cutter, the fiber reinforced plastic soundproof wall panel described in Example 2 is used for the viaduct using the M16 chemical anchor and nut. Attached to the housing. Furthermore, the cover made from fiber reinforced plastic was attached using the cover attaching part protruded on the back side of the panel for soundproof walls made from fiber reinforced plastic. The weight of the fiber reinforced plastic cover was 12 kg.
[0048]
For construction work, the soundproof wall body is enough for two people and the cover is enough for one person, so no heavy lifting equipment is required, and a stage type aerial work platform that can accommodate three workers. Construction was possible with only one unit.
[0049]
Furthermore, since the rear side of the soundproof wall has a structure that does not require a space for installation or a space for work, construction was possible without hindering the operation of the train. Due to these factors, daytime construction is possible, which is advantageous in terms of safety, environment, and efficiency, and the total cost of construction can be kept low.
[0050]
【The invention's effect】
As described above, according to the soundproof wall panel of the present invention, the soundproofing part which is the main component, and further, the soundproofing part and the columnar part are made of fiber reinforced plastic having strength and ductility. Thus, it is possible to prevent the development of cracks due to small repetitive inputs peculiar to the brittle material, and to prevent the occurrence of peeling and the fall of small pieces. In addition, it has a higher specific strength than general metals such as concrete and iron, and can be significantly reduced in weight while maintaining the necessary strength as a soundproof wall. As a result, it is lifted at installation sites such as viaducts. It can be easily installed in high places, such as no need to carry in heavy machinery. Furthermore, by having an attachment part to the building frame at the bottom of the structure body, it can be installed on the building frame by itself, and a soundproof wall of a general structure that requires a separate pillar or crosspiece Compared to, it is possible to reduce the time and labor for installation.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a soundproof wall panel according to an embodiment of the present invention as viewed from the front.
2 is an overall perspective view of the soundproof wall panel shown in FIG. 1 when viewed from the back. FIG.
FIG. 3 is a partial sectional view showing an example of a cover mounting structure according to the present invention.
FIG. 4 is an overall perspective view showing an example of a structure of a trough and a gripping part in the present invention.
FIG. 5 is an overall perspective view of a soundproof wall panel according to another embodiment of the present invention as viewed from the front.
FIG. 6 is an overall perspective view of a soundproof wall panel according to still another embodiment of the present invention when viewed from the front.
FIG. 7 is an overall perspective view of a soundproof wall panel according to still another embodiment of the present invention when viewed from the front.
8 is a schematic longitudinal sectional view showing an example of a mounting state of the soundproof wall panel and the cover shown in FIG. 5. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Panel for soundproof walls 2 Soundproof part 2a, 2b Skin material 2c Rib 2d Core material 3 Column (part)
3a Column body skin material 3b Column body core material 4 Mounting portion 5a Chemical anchor 5b Metal plate 5c Nut 6 Building housing 7 Cover 8 Cover mounting bolt 9 Trough 10 Trough lid 11 Grasping portions 21, 31, 41, 51 Soundproofing Wall panel 22, 32, 42 Soundproof portion 23 Column body 24, 56 Mounting portion 25 Column body extending direction 26 Rib or continuous reinforcing fiber extending direction 33 Folded portion 43 Superposed portion 44, 52 Building housing 45, 54 Anchor bolts 46 and 55 Mounting nut 53 Cover 57 Cover mounting anchor bolt 58 Nut

Claims (23)

At least a soundproof wall panel having a soundproof portion composed of a core material and a skin material located on both sides of the core material, wherein the skin material is made of fiber reinforced plastic, and the total thickness of each soundproof portion and each The ratio of the thickness of the skin material is in the range of 5: 1 to 50: 1, the attachment portion to the building frame is provided at the lower part of the soundproof portion , and on both sides of the core material A panel for a soundproof wall, wherein ribs are provided to connect the skin materials located to each other . Columns that support the soundproofing part are provided on both sides of the soundproofing part, and at least a part of the rib extends with an inclination of 60 ° or more with respect to the extending direction of the columnar body. The soundproof wall panel according to claim 1, characterized in that: The soundproof wall panel according to claim 1 or 2, wherein at least the soundproof portion is formed by integrally forming a core material and a skin material . The soundproof wall panel according to claim 2 , wherein the soundproof portion and the column are integrally formed . The soundproof wall panel according to claim 1 or 2 , wherein the soundproof portion and the mounting portion are integrally formed . The soundproof wall panel according to any one of claims 1 to 5, wherein a cover that covers at least a part of the lower surface of the building enclosure is detachably attached to a lower portion of the soundproof portion . The soundproof wall panel according to any one of claims 1 to 6, wherein the skin material includes a layer made of carbon fiber reinforced plastic in a thickness ratio of at least 5% to the skin material . The soundproof wall panel according to any one of claims 1 to 7, wherein the reinforcing fiber of the skin material comprises at least one of glass fiber, carbon fiber, and aramid fiber . The soundproof wall panel according to any one of claims 1 to 8, wherein the skin resin matrix resin comprises any one of an epoxy resin, an unsaturated polyester resin, a vinyl ester resin, and a phenol resin . The soundproof wall panel according to any one of claims 1 to 9 , wherein the volume content of reinforcing fibers in the fiber reinforced plastic of the skin material is in the range of 15 to 60% . A soundproof portion composed of a core material and a fiber reinforced plastic skin material located on both sides of the core material, and a pillar supporting the soundproof portion, and the total thickness of the soundproof portion and the thickness of each skin material In the soundproof wall panel having a ratio in the range of 5: 1 to 50: 1, the pillar body is made of metal, and a lower portion of the pillar body is provided with an attachment portion to the building frame, and A soundproof wall panel comprising ribs for connecting skin materials located on both sides of the core material . The soundproof wall panel according to claim 11 , wherein at least a part of the rib extends with an inclination of 60 ° or more with respect to the extending direction of the column . The soundproof wall panel according to claim 11 or 12, wherein the soundproof part and the pillar are joined by embedding at least a part of the pillar in the soundproof part . The soundproof wall panel according to any one of claims 11 to 13 , wherein the soundproof portion and the column are integrally formed . The said fiber reinforced plastic skin material contains the continuous reinforcement fiber extended in the direction which has an inclination of 60 degrees or more with respect to the extending direction of a pillar , The one in any one of Claims 11-14 characterized by the above-mentioned. Sound barrier panel. Excluding the columnar body and the mounting portion, the weight per unit area of the sound insulation portion, characterized in that in the range of 10~60kg / m ^2, noise barriers according to any one of claims 11 to 15 panel. The soundproof wall panel according to any one of claims 11 to 16 , wherein the fiber reinforced plastic forming the skin material uses a highly flame-retardant resin as a matrix resin . The panel for soundproof walls in any one of Claims 1-17 in which at least one part of the said soundproof part is formed in the curved part . The soundproof wall panel according to any one of claims 1 to 18 , wherein a folded portion extending inward is provided at a top portion of the soundproof portion, and the folded portion is formed integrally with the soundproof portion . The mounting hole provided in the soundproof wall panel according to any one of claims 1 to 19 is passed through an anchor bolt previously installed in the building case, and the soundproof wall panel is further attached to the building case using a nut. A method for attaching a soundproof wall panel, characterized in that the soundproof wall panel is fixed. 21. The method for mounting a soundproof wall panel according to claim 20, wherein the anchor bolt for mounting is already embedded when the concrete of the building frame is driven. 21. The method of mounting a soundproof wall panel according to claim 20, wherein the mounting anchor bolt is a chemical anchor driven by drilling after completion of construction of the building frame. The soundproof wall panel according to any one of claims 20 to 22, wherein the anchor bolt for mounting is a bolt having a diameter of M16 or more driven to a depth of at least 80 mm or more with respect to the building frame. Mounting method.

Images