JP2003155713A - Panel for sound-proof wall and its attaching method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panel for a sound-proof wall and its attaching method which can be easily installed from a track side or a road side without assembling a scaffold even when an attaching place is in a high place, preventing noise or having an effect on diffusion of noise, and preventing flaking of chips. SOLUTION: The panel for the sound-proof wall and its attaching method are characterized by that the panel has a sound-proof part composed of a core member and fiber reinforced plastic made skin members positioned on both sides of the core member, and an attaching part to a building frame is provided on a part of the sound-proof part itself.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a soundproof wall panel used as a soundproof wall installed along a railway line or a road, for example, and more specifically to a soundproof wall panel made of fiber reinforced plastic and the same. Regarding mounting method.

[0002]

2. Description of the Related Art Conventionally, as is well known, for example, a soundproof wall made of concrete or metal is mainly installed on a flat land or an elevated portion of a railroad or a road so as to mitigate noise to residents living along the areas.

Since these materials are comparatively heavy, a certain effect can be obtained in the prevention and noise diffusion of noise generated from railway cars and automobiles on the principle of sound insulation due to large mass. . However, since concrete and metal noise barriers are heavy objects, it is essential to bring in heavy machinery and a dedicated mounting machine to the mounting location for transporting and mounting them, especially when the location is a railway viaduct. Has
There is a problem that it is difficult to bring a dedicated construction machine close to the soundproof wall installation location from the track side.

[0004]

On the other hand, in the Japanese Patent Application No. 2001-148164 of the prior application for the purpose of solving the above-mentioned problems, in the case of the structure of FIG. 2, when the back side is installed on the railway track side, for example, There is a risk that a worker may get caught in the mounting part, and in the case of the structure shown in Fig. 8, it is necessary to construct a scaffold for working at high places on the outside of the viaduct in order to mount it on the concrete skeleton. There was an element that became high.

Further, as seen in the recent detachment from a concrete railway viaduct, the concrete soundproof wall has a problem of partial detachment and drop of small pieces due to alkali embrittlement and deterioration over time.

The object of the present invention is to solve the above-mentioned problems, and even if the mounting location is high, it can be easily installed from the track side or road side without assembling a scaffold, and noise can be prevented or diffused. It is an object of the present invention to provide a soundproof panel and a method of mounting the same, which is effective in preventing the occurrence of small pieces coming off.

[0007]

In order to solve the above-mentioned problems, a soundproof wall panel according to the present invention comprises a core material and a fiber-reinforced plastic skin material located on both sides of the core material. And a mounting portion to the building frame is provided in a part of the soundproof portion itself.

In this soundproof wall panel, it is preferable that the core material in the mounting portion of the soundproof portion to the building frame is made of metal. Further, it is preferable that the soundproof section is provided with a pillar body that reinforces the soundproof section. In this case, the mounting portion may be provided on the pillar body. Such a pillar is preferably made of metal.

Further, by embedding at least a part of the pillar in the soundproof portion, the soundproof portion and the pillar can be joined together.

It is preferable that ribs are provided inside the soundproofing section to connect the skin members located on both sides of the core member. Further, at least the soundproof portion may have a structure in which the core material and the skin material are integrally molded. Furthermore, the soundproof part and the pillar may be integrally formed.

In such a soundproof wall panel, the weight per unit area of the soundproof part excluding the column and the mounting part is preferably in the range of 10 to 60 kg / m ^{2 in} terms of transmission loss performance. . The fiber-reinforced plastic forming the skin material may be an epoxy resin, an unsaturated polyester resin, a vinyl ester resin, a phenol resin or the like as a matrix resin, but a flame-retardant resin such as an unsaturated polyester resin or It is preferable to use a phenol resin.

A soundproof wall panel mounting method according to the present invention comprises a mounting hole provided in a mounting portion of the soundproof wall panel as described above, and a bolt formed in a shaped steel hole previously embedded in a building frame. Through, and fixing the soundproof wall panel to the building frame with a nut.

In this mounting method, the shaped steel may be one that is already buried at the time of driving the concrete of the building frame, or one that is driven by punching after the construction of the building frame is completed.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail with reference to the preferred embodiments with reference to the drawings. 1 and 2 show a soundproof wall panel according to an embodiment of the present invention. In the figure, reference numeral 1 denotes the entire soundproof wall panel, and the soundproof wall panel 1 is a soundproof section 2
And the mounting portion 3 for the building body provided in the soundproofing portion 2 itself
And have.

The soundproof part 2 is composed of a core material 4 and skin materials 5 made of fiber reinforced plastic and located on both sides thereof. In the present embodiment, the core material 4 includes a foam body 6 and a pillar body 7 made of a metal square steel tube for reinforcing the soundproof part 2. At least a part of the pillar body 7 (substantially in the present embodiment, The soundproof portion 2 and the pillar 7 are joined by burying all of them in the soundproof portion 2. In this embodiment, the soundproof part 2 and the pillar 7 are integrally formed. The mounting portion 3 is provided in the portion of the soundproof portion 2 where the pillar 7 is embedded.

In the soundproof part 2, the core material 4 and the skin material 5
Are integrally molded. In the present embodiment, the weight per unit area of the soundproof part 2 excluding the pillar 7 and the mounting part 3 is set to be in the range of 10 to 60 kg / m ² . The matrix resin of the fiber-reinforced plastic forming the skin material 5 is not particularly limited, but a flame-retardant resin such as an unsaturated polyester resin or a phenol resin can also be used.

In this embodiment, ribs 8 for connecting the skin members 5 located on both sides of the core member 4 are provided inside the soundproof portion 2, and these ribs 8 are integrally molded.
Further, the mounting portion 3 is provided with a mounting hole 9 for mounting on a building frame.

As a preferable integral molding method of the soundproof wall panel 1, a so-called RTM (Resin Transfer Molding) method or a RIM (Resin Injection Molding) method is used, or a diffusing material of an injection resin is arranged at the same time as depressurizing a molding site. It is desirable to adopt a molding method such as an integral molding method (SCRIMP method) in which a liquid plastic is injected into a cavity in which a reinforcing fiber, a core material and a column material are arranged, and impregnated and cured.

FIG. 3 shows a cross section of a soundproof wall panel 11 according to another embodiment of the present invention. In this embodiment, as compared with the embodiment shown in FIGS. 1 and 2, the columnar body 12 made of square steel pipe has a larger cross-sectional area, and the portion including the columnar body 12 is projected to one surface side of the panel. It has been configured. Other configurations are the same as those in the above embodiment.

FIG. 4 shows a cross section of a soundproof wall panel 21 according to yet another embodiment of the present invention. In this embodiment, compared with the embodiment shown in FIGS. 1 and 2, I
A columnar body 22 made of H-shaped or H-shaped steel is provided, and a part of the columnar body 22 is projected so as to be substantially exposed to the outside of the panel. Other configurations are the same as those in the above embodiment.

FIGS. 5 and 6 show a soundproof wall panel 31 according to still another embodiment of the present invention. The soundproof panel 31 has a soundproof part 32 and a mounting part 33 provided on the soundproof part 32 itself. In the soundproof part 32 other than the mounting part 33, both sides of the foam 34 as a core material are provided. A fiber-reinforced plastic skin material 35 is arranged in the interior of the base material, and ribs 36 that integrally connect the skin materials 35 on both sides are provided inside.

The mounting portion 33 is formed in a trapezoidal shape on the one surface side of the panel. In this mounting portion 33, a metal core material 37 is provided, and skin materials 35 are located on both surface sides of the core material 37. A mounting hole 38, which is a through hole, is provided in the mounting portion 33. In this embodiment, the columnar body as shown in FIGS. 1 to 4 is not provided. Other configurations are the same as the above-described embodiment.

A mounting structure and a mounting method of the soundproof wall panel configured as described above will be described. FIGS. 7 and 8 show a mounting structure of the soundproof wall panel 1 having the structure shown in FIGS. 1 and 2 or a structure equivalent to the structure shown in FIG.
Indicates the mounting method.

7 and 8, reference numeral 41 denotes a building frame such as a railway viaduct.
The shaped steel 4 so as to be engaged and fixed to the embedded rebar 42.
The lower part of 3 is buried in advance, and the upper part thereof is exposed on the upper surface. A spacer 45 is interposed between the hole 44 formed in the shaped steel 43 and the mounting hole 9, and the bolt 4
6 is inserted and the soundproof wall panel 1 is fixed to the shaped steel 43 by fixing the bolt 46 with the hexagon nut 47.

As shown in FIG. 9, in this embodiment, the bolt 46 is fixed to the metal plate 48 in advance, and in this state, the bolt 46 is treated integrally with the metal plate 48 so that the bolt 46 can be inserted into the holes 9 and 44. Is inserted. Also, the nut 47
Are fastened via washers 49.

In such a mounting structure and mounting method, even when a plurality of soundproof wall panels 1 are arranged to form a soundproof wall of a desired size, each soundproof wall panel 1 itself is constructed to be lightweight. Therefore, it can be easily arranged at a predetermined position manually without using a heavy machine or the like. Further, since the fixing work can be fixed to the shaped steel 43 from the inside of the building body 41 instead of the outside, the fixing work can be performed extremely easily. Further, since the soundproof part 2 itself is provided with the mounting part 3, the mounting work can be easily performed at an appropriate position on the building structure, not at a place where work is difficult under a viaduct or the like. Therefore, it is not necessary to install a scaffold for work. Also,
Since the mounting part 3 is provided in a part of the soundproof part 2, it becomes possible to directly mount and fix the soundproof wall panel 1 itself to the shaped steel 43, thereby shortening the installation time and improving the work efficiency. Becomes

10 and 11 show a mounting structure and a mounting method of the soundproof wall panel 31 shown in FIGS. 5 and 6, respectively. In the present embodiment, the shaped steel 51 is driven by punching after the construction of the building frame 52 is completed. The spacer 54 is interposed between the mounting hole 38 formed in the mounting portion 33 provided with the metal core member 37 and the hole 53 formed in the shaped steel 51, and the hexagon bolt 55 is inserted. Hex nut 57 through washer 56
It is fixed in. Other configurations, operations, and effects are in accordance with the structures shown in FIGS.

[0028]

EXAMPLES Hereinafter, examples will be described. Example 1 As a reinforcing fiber of a fiber reinforced plastic skin material, 1 ply of glass fiber chopped strand mat, 2 plies of glass fiber 0/90 ° woven fabric, and 1 ply of carbon fiber 0 ° woven fabric were arranged on the front side of the soundproof part. 30 times expanded rigid polyurethane foam as core material, 125 mm x 75 as pillar
A SS400 pipe having a rectangular cross section of mm and a thickness of 3.2 mm, which has been subjected to molten zinc plating, is arranged, and further 2 plies of glass fiber 0/90 ° woven fabric and 1 ply of carbon fiber 0 ° woven fabric are used as the back skin material. A soundproof wall panel made of fiber reinforced plastic in which one ply of glass fiber chopped strand mat was arranged was formed by impregnating the flame retardant unsaturated polyester resin by the above-mentioned SCRIMP method.

The pipe made of SS400, which is a pillar, was completely embedded in the soundproof part, and the pipe cross section was opened only on the lower surface of the soundproof part. The pipe opening was previously sealed with a film to prevent the flame-retardant unsaturated polyester resin from entering the SS400 pipe. At this time, the fiber direction of the carbon fiber 0 ° woven fabric should be at an angle of 90 ° with respect to the extending direction of the SS400 pipe forming the columnar body, and in the same direction, ribs were formed at five points at a pitch of 265 mm. I placed it. The material of the rib was a glass fiber 0/45 ° polyaxial woven fabric.

The soundproof wall panel made of fiber reinforced plastic thus obtained has a height of the soundproof portion of 1600 mm and a total width of 104 including the overlapping portions with the adjacent panels at both ends in the width direction.
0 mm, the mounting portion was in a shape provided on the columnar body inside the soundproof portion. The weight of the main body of the soundproof wall panel made of fiber reinforced plastic was 58 kg. As a result of constructing a soundproof wall using this soundproof wall panel, an excellent soundproof effect was obtained along with easy workability and handleability.

Example 2 In a new railway viaduct, channel steel 125 mm × 65 m
After the m was attached to the reinforcing bar inside the body by welding, concrete was poured and the lower part of the channel steel was embedded in the concrete body. Then, bolts are inserted through the holes for mounting the soundproof wall panel formed in the upper part of the channel steel and the holes made in the pillars inside the soundproof part of the soundproof wall panel made of the fiber-reinforced plastic described in Example 1. From the track side, the soundproof panel was fixed to the body. At the time of construction, since the soundproof wall body could be held by two people, no heavy equipment for lifting was required, and since it was possible to install it from the track side, a work vehicle for high places was also unnecessary.

[0032]

As described above, according to the soundproof wall panel of the present invention, the specific strength is higher than that of general metal such as concrete or iron, and the strength required for the soundproof wall is maintained. The weight can be significantly reduced, and as a result, heavy equipment for hoisting is not required at installation sites such as viaducts. Furthermore, for example, in the case of a railway viaduct, it is a structure that can be installed on the building frame from the track side, so there is no need to build a scaffold for work under the elevated structure or use an aerial work vehicle. .

Further, in the soundproof wall panel of the present invention, since the structure body has the attachment portion to the building body, it can be installed on the building body by itself, and columns and crosspieces can be separately provided. Compared with the required general-purpose soundproof wall, the labor and time required for installation can be reduced.

The effects of the present invention are summarized in Table 1 below.

[0035]

[Table 1]

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a soundproof wall panel according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line II-II of the soundproof wall panel of FIG.

FIG. 3 is a cross-sectional view of a soundproof wall panel according to another embodiment of the present invention.

FIG. 4 is a cross-sectional view of a soundproof panel according to yet another embodiment of the present invention.

FIG. 5 is a partially cutaway perspective view of a soundproof wall panel according to still another embodiment of the present invention.

FIG. 6 is a transverse cross-sectional view of the soundproof wall panel of FIG. 5, taken along line VI-VI.

FIG. 7 is a vertical cross-sectional view showing a mounting structure example of the soundproof wall panel shown in FIGS. 1 and 2.

FIG. 8 is a partially enlarged vertical sectional view of the mounting structure of FIG.

9 is a partial exploded perspective view showing a mounting method for completing the mounting structure of FIG. 7. FIG.

FIG. 10 is a partial vertical cross-sectional view showing a mounting structure example of the soundproof wall panel shown in FIGS. 5 and 6.

11 is an exploded perspective view showing a mounting method for completing the mounting structure of FIG.

[Explanation of symbols]

1, 11, 21, 31 Soundproof wall panels 2, 32 sound insulation 3, 33 Mounting part 4 core material 5,35 Fiber reinforced plastic skin material 6,34 foam 7, 12, 22 columns 8,36 ribs 9, 38 mounting holes 37 Metal core material in the mounting part 41, 52 Building frame 42 Rebar 43, 51 shaped steel 44, 53 shaped steel holes 45, 54 spacer 46, 55 volt 47, 57 nuts 48 metal plate 49,56 washers

Claims (14)

[Claims] 1. A soundproof part comprising a core material and fiber-reinforced plastic skin materials located on both sides of the core material,
A panel for a soundproof wall, characterized in that the soundproof part itself is provided with a mounting portion to a building frame. 2. The soundproof wall panel according to claim 1, wherein a core material in a mounting portion of the soundproofing portion to the building frame is metal. 3. The soundproof part is provided with a pillar body for reinforcing the soundproof part.
Soundproof wall panel described in. 4. The soundproof wall panel according to claim 3, wherein the mounting portion is provided on the pillar body. 5. The soundproof wall panel according to claim 3, wherein the pillar is made of metal. 6. The soundproofing according to claim 3, wherein at least a part of the pillar is embedded in the soundproofing part so that the soundproofing part and the pillar are joined together. Wall panel. 7. The soundproof wall according to claim 1, wherein ribs are provided inside the soundproofing section to connect skin materials located on both sides of the core material. Panel. 8. The soundproof wall panel according to claim 1, wherein at least the soundproof portion is integrally formed with a core material and a skin material. 9. The soundproof wall panel according to claim 3, wherein the soundproof part and the pillar are integrally formed. 10. The weight per unit area of the soundproof portion excluding the pillar and the mounting portion is in the range of 10 to 60 kg / m ² , and the weight of the sound insulating portion is in the range of 10 to 60 kg / m ² . Soundproof wall panel. 11. The soundproof wall according to claim 1, wherein the fiber-reinforced plastic forming the skin material is a flame-retardant resin as a matrix resin. panel. 12. A bolt is passed through a mounting hole provided in a mounting portion of the soundproof wall panel according to any one of claims 1 to 11 and a shaped steel hole previously embedded in a building frame,
A method for mounting a soundproof wall panel, comprising fixing the soundproof wall panel to a building frame with a nut. 13. The shaped steel is already buried when concrete is poured into a building frame,
The method for mounting the soundproof wall panel according to claim 12. 14. The method for mounting a soundproof wall panel according to claim 12, wherein the shaped steel is driven by punching after the construction of the building frame is completed.