JPS6389707A - Sound insulating wall structure - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a sound insulating wall structure.

(Conventional technology) Conventionally, sound insulation walls have been used to insulate and dampen the noise emitted by railways and automobiles, especially high-speed railways and high-speed automobiles, and these sound insulation walls are installed along railways and roads at specified intervals on the sides. A plurality of precast panels with a rectangular cross-section were stacked and installed between pillars erected at intervals. However, such sound insulation walls do not provide good sound insulation and soundproofing effects, so a panel consisting of a frame, a lightweight concrete layer, and a waterproof layer is attached to the pillars, and the flexibility of the waterproof layer absorbs sound. A device that enhances the sound insulation effect is proposed in Japanese Utility Model Publication No. 57-61133.

(Problems to be Solved by the Invention) In the above-mentioned prior art, the entire surface of the sound insulation wall is covered with a panel, so the view of railway passengers and vehicle drivers is blocked by the sound insulation wall, creating an isolation window. Not only is this undesirable, but it also has the problem of making the panel complicated and expensive.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a sound insulating wall structure that allows for good visibility of the scenery and provides good sound insulation effects with a simple structure.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a plurality of panels mounted between a plurality of supports with opening intervals serving as viewing windows, and a cross-sectional shape of the panels formed with at least one pair of inclined surfaces. The sound energy reflected from the opposing inclined surfaces of adjacent panels is configured to cancel each other out and attenuate before passing through the viewing window.

(Function) According to the present invention, the scenery can be viewed through the viewing window formed between the panels, and the sound energy reflected on the opposing inclined surfaces of the adjacent panels is attenuated while canceling each other out.

(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

In Figs. 1 to 4, reference numeral 1 denotes pillars erected at predetermined intervals along the side of railways and roads, and a plurality of pre-main 11 strike panels 2 are connected to suitable bolts, nuts, etc. (not shown). They are mounted in a plurality of stages using fixing means to provide viewing windows 3 with intervals between the openings. The panel 2 has a chevron-shaped cross-section having a pair of inclined surfaces 4, 4, and the damping space 5 between adjacent panels 2.2 has a trapezoidal cross-section. In this case, the panels 2 may be arranged so that the viewing windows 3 are formed linearly along the railway or road as shown in Figure 2, or the viewing windows 3 may be formed alternately as shown in Figure 3. It may be arranged so that

The cross-sectional shape of the panel 2 may be a mountain shape having at least one pair of inclined surfaces 4.4 on the railway or road side, or a cross-sectional shape in which a rectangular portion is integrated with a triangular portion as shown in Fig. 5; It may be a diamond shape as shown in FIG. 6, or a trapezoid shape as shown in FIG. 7. Further, the panel may be formed of an appropriate concrete such as porous concrete, and an appropriate material such as PC or RC precast concrete may be selected.

As described above, in the present embodiment, the plurality of viewing windows 3 opened between the plurality of panels 2 allows railway passengers, vehicle drivers, etc. to pass through the sound insulation wall section while viewing the wind head through the viewing windows 3. Therefore, it is possible to maintain a good mood without creating a feeling of isolation, and the sound energy is distributed between the adjacent panels 2 on the inclined surfaces 4.
4, the sound waves pass through the opening of the viewing window 3 while being mutually canceled out and attenuated by reflection, interference, and scattering effects, resulting in good soundproofing and sound insulation effects. In this case mutually adjacent panels 2
．． The attenuation space 5 formed by the opposing inclined surfaces 4, 4 of 2 forms an air layer with a trapezoidal cross section that gradually narrows in the direction of sound propagation. The width Y, the horizontal width X, the vertical width Y' of the observation window, and the inclination angle θ of the inclined surface 4 can be freely changed in design according to the frequency of the noise. For example, when compared with a conventional sound insulation wall installed,
It is considered that a good attenuation effect can be obtained in a high frequency range of 0H2 or higher.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, a sound absorbing material may be pasted on the surface of the panel, and although the panel is shown as being made of concrete, the material may be appropriately selected, such as synthetic resin or #1.

[Effects of the Invention] The present invention includes mounting a plurality of panels between a plurality of columns with opening intervals that serve as viewing windows, and making the cross-sectional shape of the panels into a chevron shape having at least a pair of inclined surfaces. Since the sound energy reflected on the facing inclined surface cancels each other and is attenuated, it passes through the viewing window, so that the ff1m can be clearly seen and a good soundproofing effect can be obtained with a simple structure. A sound insulating wall structure can be provided.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the present invention, FIG.
4 is a sectional view of the main part, and FIGS. 5, 6, and 7 are sectional views of the main part showing other embodiments. 1... Strut 2... Panel 3... Peephole 4... Sloped surface maintenance permit Applicant: Japan Samicon Co., Ltd. Agent Patent attorney Ushiki
Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] A plurality of panels are mounted between a plurality of columns with opening intervals serving as viewing windows, the cross-sectional shape of the panels is a chevron having at least a pair of inclined surfaces, and adjacent panels are arranged to face each other. A sound insulating wall structure characterized in that the sound energy reflected on the inclined surface cancels each other out and is attenuated before passing through the viewing window.