JP2019007193A - Sound-proof wall component and sound-proof wall structure - Google Patents

Abstract

To provide a sound-proof wall component and a sound-proof wall structure in which the number of components is small, which do not require much construction labor when applied at site, and have no risk of falling of fastening bolts and the like.SOLUTION: Provided are: a sound-proof wall component which consists of a wall body with sound-proof panels or sound-proof plates and a base member with a flange, and is characterized by mechanically fastening the wall body with the flange of the base member; and a sound-proof wall structure using the same. As for mechanical fastening means, bolt tightening is applied, and the base member is preferably an integrally molded product by ductile casting.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a soundproof wall constituting member and a soundproof wall structure, and more particularly to a soundproof wall constituting member and a soundproof wall structure suitable for railways.

  As the speed of railways, including the Shinkansen, increases, it is necessary to improve the soundproof performance of new soundproof walls and existing soundproof walls from the viewpoint of noise prevention.

As described in Patent Document 1, the conventional soundproof wall structure is composed of a soundproof panel and a support such as H-shaped steel, so there are many components, and it takes a lot of work at the laying site. There was a risk of member dropping due to deterioration such as loosening of fixing bolts between components due to repeated loads such as.
In addition, the load acting on the soundproof panel acts intensively on a structure such as a viaduct protruding portion through the support column, and thus there is a possibility that the fastening portion may be damaged.

  In order to improve these drawbacks, the technique disclosed in Patent Document 2 includes a wall body made of a soundproof panel or a soundproof plate, left and right vertical members, and a base member. A sound barrier with integrated members has been proposed.

  This integrated soundproof wall has a structure in which the soundproof panel and the support are integrated, so that the number of components handled at the time of site installation is reduced, and compared with the soundproof wall described in Patent Document 1, it is a certain amount of labor. There is an advantage that the construction cost is reduced, but the integration of the soundproof wall makes the structural unit of the soundproof wall an enormous L-shaped unit, so that it can be transported, installed and fixed at the construction site. For example, in the case of the Tokaido Shinkansen or the like, there is a drawback that it takes a long time to lay in a site where the construction time per day can be secured only about 3 and a half hours.

JP 2007-255098 A Japanese Patent Laying-Open No. 2015-014052

  In the structure of the soundproof panel and the support made of H-shaped steel or the like disclosed in Patent Document 1, the number of components of the soundproof wall is increased, and it takes time and labor for construction at the site. In addition, the maintenance of the bolts for fixing the structural members of the soundproof wall and the bolts for fixing the support columns is excessive, and there is a risk of the members falling due to deterioration of the bolts and the like.

  Further, the wind pressure load received by the soundproof panel is not a reasonable structure as a soundproof wall structure because the load acts on the structure intensively through the support column.

  In addition, in the integrated soundproof wall disclosed in Patent Document 2, the number of structural members of the soundproof wall is reduced, but the unit member is L-shaped and large, and the transport efficiency to the worksite deteriorates. In addition, it is necessary to perform positioning with high accuracy by using a crane having a larger capacity than before, and the laying efficiency has not increased as expected.

  Further, in the technique described in Patent Document 2, the base member 14 is formed by joining a bottom plate 21 made of a steel plate, a pair of left and right side plates 24 and 25, a rear plate 22 and a top plate 23 by fillet welding. However, it requires a lot of manufac- turing, and from the viewpoint of strength, it is necessary to place protective concrete after laying.

  The present invention proposes a soundproof wall structure that can improve the drawbacks of these conventional techniques. As the soundproof wall structure, the soundproof wall may be referred to as a panel-shaped soundproof wall body (hereinafter referred to as “wall body”). ) And the base member that fixes this to the track base, improving the transportability of the components to the laying site and improving the workability at the site, the time required to manufacture and lay the soundproof wall This greatly reduces labor.

The specific configuration of the present invention is as described below.
(1) A soundproof wall constituting member comprising a wall body having a soundproof panel or a soundproof plate and a base member having a flange, wherein the wall body and the flange of the base member are mechanically fastened.

(2) The soundproof wall constituting member according to (1), wherein the mechanical fastening is fastening with a bolt.

(3) The soundproof wall constituting member according to any one of (1) and (2), wherein the mechanical fastening is performed on a track side of the soundproof wall.

(4) The soundproof wall constituting member according to any one of (1) to (3), wherein the base member and the flange are integrally formed of ductile cast iron.

(5) The soundproof wall constituting member according to any one of (1) to (4), wherein the flange fixes the lower portion of the wall body on two or more surfaces that are not parallel to each other.

(6) The said flange is formed in the square shape from which the direction of a fastening surface is not mutually parallel toward the upper direction from the upper surface of a base member, It is described in any one of said (1)-(5) characterized by the above-mentioned. Soundproof wall constituent member.

(7) The soundproof wall constituting member according to (6), wherein the flange includes two sets arranged in an L shape, a total of four square flanges.

(8) The upper end portion of each flange has an R-shaped or tapered guide surface for facilitating fitting with respect to the fitting portion of the lower end portion of the wall body. The soundproof wall constituting member according to any one of (1) to (7).

(9) The lower part close to the base member of the flange serves as an abutment and fastening surface capable of positioning the wall body, according to any one of (1) to (8), Soundproof wall constituent member.

(10) A soundproof wall structure in which the soundproof wall constituting member according to any one of (1) to (9) is continuously disposed substantially parallel to a railroad track.

(11) The soundproof wall structure according to (10), wherein each of the soundproof wall constituting members is fixed to an elevated protruding portion.

(12) The soundproof wall structure according to (10), wherein each base member is anchored to an elevated protruding portion.

(13) The soundproof wall structure according to (10), wherein each soundproof wall constituting member is fixed to the embankment.

(14) The soundproof wall structure according to any one of (10) to (13), wherein adjacent soundproof wall constituting members are fixed to each other.

  Since each of the soundproof wall structures according to the present invention comprises a flat plate-like base member having a flange and a wall body, the number of constituent members is as in the conventional product in which the H-shaped steel support and the soundproof panel are separated. In addition, since the structure is not slightly inferior in transport efficiency due to the L-shaped large structure in which the soundproof panel and the support are integrated, it is easy and efficient to transport the components to the laying site. This can be done, and construction work at the site can be greatly reduced. As a result, the construction cost can be reduced and the time required for construction can be greatly shortened.

  Further, by making the base member an integrated structure made of ductile cast iron, the steel plate members such as the bottom plate, the side plate, the top plate and the rear plate adopted by the base member of the soundproof wall constituting member disclosed in Patent Document 2 are welded. Compared with manufacturing, the production efficiency is significantly improved and a base member having high strength can be obtained.

  In addition, the fixing bolts between the column and the panel are eliminated, so inspection after construction is reduced, that is, maintenance can be saved, and bolts that fasten the base member and wall body are also installed on the track side of the soundproof wall. As a result, it is possible to eliminate the fear of bolts and other members falling outside the track facility due to deterioration.

  Furthermore, by fastening the wall body and the base member on two or more surfaces that extend upward from the ground surface and are not parallel to each other, against load loads from all directions due to strong winds or wind pressure when passing through the train, etc. However, sufficient strength (drag) can be exhibited.

  In addition, when laying, the shape and inclination of the upper end of the square flange for fastening the wall extending upward from the base member is devised to provide a guide surface for fitting, so that the square flange and the wall By facilitating the fitting with the lower part and using the lower part of the square flange as the abutting and fastening surface for wall body positioning, the wall body fitting process is facilitated, and the work speed can be increased.

  Furthermore, since it is a flat structure without a support | pillar, it is excellent in aesthetics, and by using a highly corrosion-resistant plated steel plate for the steel material to be used, it is prevented that it deteriorates by aging.

  In addition, the load acting on the structure from the soundproof wall can be transmitted evenly to the structure via the base of the structural member integrated with the soundproof wall, reducing the load on the structure. Is possible.

FIG. 1 is a perspective view showing an embodiment of a soundproof wall structure according to the present invention. FIG. 2 is an enlarged perspective view showing one embodiment of a fastening portion between the base member and the wall body in the soundproof wall according to the present invention. FIG. 3 is a perspective view showing the engagement relationship between the square flange of the base member according to the present invention and the wall body. FIG. 4 is a perspective view showing an embodiment of a square flange in the base member according to the present invention. FIG. 5 is a perspective view showing another embodiment of the angular flange in the base member according to the present invention.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 illustrates a case where the soundproof wall is viewed from an oblique direction on the track side. In the following description, the surface of the soundproof wall viewed from the track side is referred to as “front”, and the front and rear sides are closer to the track. Is the front side, and the side far from the orbit is the rear side.

  The soundproof wall structure shown in FIG. 1 is installed at a protruding portion of an elevated railway, and a plurality of soundproof wall constituent members are continuously arranged substantially parallel to the railroad track, and a plurality of soundproof walls. The wall constituent members are formed by being connected by a trunk edge.

  Each soundproof wall constituting member has a width of 500 mm and a height of 3400 mm, for example. Each sound barrier member is appropriately selected in the range of 300 mm to 1000 mm in width and 1500 to 4000 mm in height. At the time of construction, it is preferable that the width is the same (for example, 500 mm) and the product has a variety of heights (for example, heights of 2200, 2700, 3100, and 3400 mm).

  As shown in detail in FIG. 1, the soundproof wall constituting member laid on the site is composed of a base member 1 and a wall body 2 provided with a soundproof panel (soundproof body).

  Although not shown, a known gap plugging material may be attached to the connecting portion between the unit soundproof wall constituent members. The soundproof wall structure is installed in a desired range by sequentially fixing such soundproof wall constituent members to the elevated protruding portion.

  The base member 1 and the wall body 2 are main components of the soundproof wall structure, and at least these members are integrally fastened at the laying site.

  The wall body 2 may be made of a soundproof panel or may be made of a soundproof board such as a concrete board.

  For example, as the wall body 2 made of a soundproof panel, a plurality of reflecting plates made of steel plates are provided in a rectangular parallelepiped housing made of steel plates, and a sound absorbing material such as glass wool is filled between the reflecting plates. It is preferable at the point which is excellent in the soundproofing effect.

  As shown in FIGS. 2 and 3, the base member 1 is integrally formed with ductile cast iron in this embodiment. In the illustrated example, the track base is between the reinforcing ribs 12. There are a total of 6 holes 16 for fixing by anchor bolts embedded in 2 rows and 3 columns, and square flanges 13 and 14 for fastening the lower end of the soundproof panel 2 are provided behind the upper surface. Projected.

  By fixing the base member 1 to an anchor bolt (not shown) provided at the protruding portion of the elevated member, the soundproof wall constituting member 2 can be fixed to the elevated member via the base member 1.

In addition, adjacent soundproof wall structural members are fixed by appropriate methods, such as bolting and a trunk edge.
Also, depending on the structure of the gap plugging material, it can be attached in advance to one of the left and right of the soundproof wall constituting member, and the soundproof performance is filled by filling the gap between the joint portions of the adjacent soundproof wall constituting members. Has the effect of increasing

  As shown in FIG. 2, the base member 1 may be provided with reinforcing ribs and openings as appropriate in consideration of strength, rigidity, and weight reduction. Even if it is a complicated shape like the example shown in the figure, since the base member 1 is made of ductile cast iron, it can be easily manufactured once the prototype is manufactured.

  On the other hand, the frame body 21 and the soundproof panel (soundproof body) 22 constituting the wall body 2 may be fixed by, for example, rivets.

On the upper surface of the base member 1, square flanges 13 and 14 for fastening the lower portion of the wall body 2 are erected.
The square flange 13 is in contact with the fastening part parallel to the track of the lower part of the frame body 21 of the wall 2, and the square flange 14 is in contact with the fastening part orthogonal to the track of the lower part of the frame body 21. The base member 1 and the wall body 2 are fastened.
By making the fastening surfaces of the square flanges 13 and 14 into two non-parallel surfaces represented by the two orthogonal surfaces described above, it is possible to efficiently withstand pressure from any direction.

In the example shown in FIG. 2, only the square flanges 13 and 14 that are L-shaped and the bolt fastening surfaces are orthogonal to each other are shown on the left rear side of the base member 1. In FIG. 5, the square flanges 13 and 14 are arranged symmetrically, and a total of four square flanges are arranged in two sets.
By fastening the lower ends of the wall body 2 with a pair of left and right square flanges 13 and 14, the fastening force by each of the square flanges 13 and 14 is fastened on a plane perpendicular to the horizontal direction. Regardless of the orientation, the base member 1 and the wall 2 can be firmly fastened.

In addition, if an R shape or a taper shape is given to the upper end portion of the square flange with respect to the fitting portion opening at the lower end portion of the wall body, the wall to the upper end portion of the flange at the time of construction at the laying site Since the fitting of the lower end of the body is facilitated, the efficiency of the workplace is improved, such as saving construction time.
As R shape 131,141, as shown in FIG. 5, it is possible to make the top part of the square flanges 13 and 14 into the gentle curved surface which goes to the inner side of the fitting part of the wall body 2 lower part.
On the other hand, as a taper shape, the upper end side of each square flange 13 and 14 is considered to cut the square flange top part toward the inner side of the fitting part of the wall body 2 lower part.

  Further, in addition to the R shape or the taper shape, if the fastening surface itself is a contact and fastening surface 132, 142 between the flange and the wall body fitting portion, the wall body fitting operation to the square flange at the laying site Is more preferable because automatic positioning is possible.

  By adopting the soundproof wall structural member according to the present invention and the soundproof wall structure using the soundproof wall structural member, it is easy and efficient to transport to the laying site, and the labor of laying can be greatly reduced. Even if a bolt or the like is detached, it is possible to construct a soundproof wall that does not drop to the outside of the soundproof wall in a short time, and there is a great industrial utility value.

DESCRIPTION OF SYMBOLS 1 Base member 11 Anchor fastening part 12 Reinforcement rib 13, 14 Square flange 131, 141 R-shaped guide surface 132, 142 Contact and fastening surface 15 Fastening bolt hole 16 Anchor bolt hole 2 Wall body 21 Frame member 22 Soundproof panel ( Soundproof body)

Claims (14)

  A soundproof wall constituting member comprising a wall body having a soundproof panel or a soundproof plate and a base member having a flange, wherein the wall body and the flange of the base member are mechanically fastened.   The soundproof wall constituting member according to claim 1, wherein the mechanical fastening is fastening by a bolt.   The soundproof wall constituting member according to claim 1, wherein the mechanical fastening is performed on a track side of the soundproof wall.   The soundproof wall constituting member according to any one of claims 1 to 3, wherein the base member and the flange are integrally formed of ductile cast iron.   The soundproof wall constituting member according to any one of claims 1 to 4, wherein the flange fixes the lower part of the wall body on two or more surfaces that are not parallel to each other.   The soundproof wall configuration according to any one of claims 1 to 5, wherein the flange is formed in a square shape in which the directions of the fastening surfaces are not parallel to each other from the upper surface of the base member upward. Element.   The soundproof wall constituting member according to claim 6, wherein the flange is composed of a total of four square flanges, two sets arranged in an L shape.   The upper end portion of each flange has an R-shaped or tapered guide surface for facilitating fitting with respect to the fitting portion at the lower end portion of the wall body. The soundproof wall structural member of any one of -7.   The soundproof wall configuration according to any one of claims 1 to 8, wherein a lower portion of the flange adjacent to the base member serves as a contact and fastening surface capable of positioning the wall body. Element.   A soundproof wall structure in which the soundproof wall constituting member according to any one of claims 1 to 9 is continuously arranged substantially parallel to a railroad track.   The soundproof wall structure according to claim 10, wherein each soundproof wall constituting member is fixed to an overhanging protruding portion.   The soundproof wall structure according to claim 11, wherein each base member is anchored to an elevated protruding portion.   Each soundproof wall structural member is being fixed to embankment, The soundproof wall structure of Claim 10 characterized by the above-mentioned.   The soundproof wall structure according to any one of claims 10 to 13, wherein adjacent soundproof wall constituting members are fixed to each other.

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