JP4005389B2 - Soundproof wall mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a soundproof wall mounting structure that is continuously provided along a highway and the like, and in particular, a soundproof wall mounting structure capable of quickly and cost-effectively performing a soundproof wall restoration work in which a column is prevented from dropping due to a rear-end collision or the like. About.
[0002]
[Prior art]
Some of the sound barriers installed along the expressway are designed to prevent the fall of the struts that have been struck down due to a rear-end collision, etc., to fall under the overpass and cause a double disaster.
FIG. 4 shows a conventional soundproof wall mounting structure with this fall prevention, in which 1 is a highway bulkhead (rail), F is on the roadway side (noise generation side), and B is on the anti-roadway side is there. Reference numerals 2a and 2b denote anchor bolts planted on the road partition wall 1, and 3 denotes a support post to which the base plate 4 is fixed by the anchor bolts 2a and 2b, and the main body is formed of H-shaped steel. Shaped flanges 3a and 3a are erected toward the roadway side F and the anti-roadway side B.
Further, 5 is a hole opened at the lower end of the web 3b of the support column. For example, a single wire rope 6 is provided in the holes 5, 5. By inserting them one after another and fixing both ends, even if the support column 3 falls down from the road partition wall 1 due to a rear-end collision of the vehicle, the wire rope 6 supports it and prevents it from falling under the overhead. It is designed to prevent a disaster from developing.
[0003]
Next, 7 is a cover for protecting the wire rope 6 and is called a lower panel. As shown in the figure, the lower panel 7 is formed by using a single thin steel plate and is bent so as to have a rectangular cross-section that is composed of a roadway side plate 7a, an upper plate 7b, and an anti-roadway side plate 7c and has an open lower surface. The length of the wire rope 6 between the support columns is approximately the length of the support column so that the entire length of the wire rope 6 is accommodated in the interior. Reference numeral 8 denotes support portions disposed at both ends of the lower panel 7, which are grounded to the base plate 4 to stabilize the lower panel 7.
Reference numeral 9 denotes a sound absorbing plate. The sound absorbing plate 9 is inserted between the upper ends of the columns 3 and 3 between the grooves formed by the flanges 3a and 3a of both columns, and the lower surface thereof is attached to the upper surface plate 7b of the lower panel 7. It is in a wearing state by placing it. Since the sound absorbing plate 9 is low in length, for example, it is configured to obtain a good soundproofing effect by stacking in three or four steps.
[0004]
[Problems to be solved by the invention]
When it is necessary to replace a specific support 3 or wire rope 6 due to an accident or the like, first, the wire rope 6 that has been passed through in order to prevent a crash is inserted into one span span 5, 5, 5. .., And after replacing or repairing broken columns, sound absorbing plates, side walls, etc., new wire ropes 6 must be inserted again into the holes 5 of the columns one after another.
However, the conventional lower panel 7 covering the wire rope 6 is formed by integrally bending so as to have a rectangular cross section using one thin steel plate as described above. It is impossible to work by hand. Therefore, the lower panel 7 must be removed, but since the sound absorbing plate 9 is further mounted on the lower panel 7, the sound absorbing plate 9 must first be removed.
After that, it is possible to remove the lower panel 7 and expose the wire rope 7. However, since this lower panel 7 is provided between all the columns, it is removed for one span (for example, 100 m). As a result, a large amount of work is required, and thus, there is a problem that recovery work after the accident takes a lot of manpower, cost, and time.
[0005]
The present invention has been made to solve such conventional problems, and the object of the present invention is to attach and detach the wire rope used to prevent the column from dropping in the event of a rear-end collision with the soundproof wall of the highway. It is an object of the present invention to provide a soundproof wall mounting structure that makes it easy to perform restoration work quickly and at low cost.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problem, the soundproof wall mounting structure according to claim 1 of the present invention is a soundproof wall provided with a sound absorbing plate mounted between columns that are erected at a predetermined interval, and the soundproof wall is preliminarily provided. For each predetermined span, the support rope drop prevention wire ropes are passed through the lower parts of the support pillars arranged in the span to fix both ends, and the sound absorbing plate is arranged to conceal the upper surface and both side faces of the wire rope. In the soundproof wall mounting structure that is placed on or close to the upper surface of the cover, the cover covers the upper portion along the wire rope and the same wire as the upper surface portion on which the sound absorbing plate is disposed. A lower panel composed of a side surface covering the other side of the rope and an opening that opens one side of the wire rope, and fixed to the column side member, and a blindfold panel in which the opening of the lower panel is closed openably Characterized in that it consists of a.
[0007]
The soundproof wall mounting structure according to claim 2, wherein the opening portion of the lower panel fixes the upper edge of the upper surface of the lower panel via a trunk edge member that is laid between the columns. It is characterized by being supported by.
[0008]
The soundproof wall mounting structure according to claim 3, wherein at least the cover panel of the cover has a length of a column interval and is independently separated between columns. It is characterized by being formed.
[0009]
Operation and effect of the invention
In the soundproof wall mounting structure according to the first aspect of the present invention, in the highway or the like, for example, the columns for mounting the sound absorbing plate on the road partition wall are erected at intervals of 2 m, for example, in a long distance section to prevent the fall. Assuming that one span for grouping the struts to perform 100 m is 100 m, one wire rope is inserted into 51 struts. Further, since the wire rope is exposed on the road partition between the columns, the entire length of 100 m is concealed by a cover, and a sound absorbing wall is formed by stacking sound absorbing plates on the upper surface of the cover. It is.
The cover is composed of a lower panel and a blind panel. When the blind panel is opened, the inner structure of the lower panel can be seen from the opening, and the fall prevention wire rope and the wire rope penetrate therethrough. The lower part of the column is exposed. Therefore, in the restoration work after the accident, first, the blindfold panel is opened over the entire length of the wire rope, and the wire ropes are successively pulled out from all the column penetrating portions through this opening.
When this wire rope is lost, the struts at any position are in an independent state, so that only the part damaged by the accident can be removed. That is, the damaged sound absorbing plate is first removed, and then the damaged support column is removed. By doing so, the upper part of the partition wall is opened, and if there is a damaged part in the column mounting part such as the partition wall or anchor bolt, repair is made. After that, a complete soundproof wall can be regenerated by attaching the removed struts, attaching a sound absorbing plate, penetrating the wire ropes through all the struts and fixing both ends.
[0010]
As described above, in the soundproof wall mounting structure according to the first aspect of the present invention, even if the wire rope is passed through all the struts for preventing the fall, Since the wire rope can be removed through the opening without removing the support column and the lower panel, an excellent effect that the restoration work can be performed quickly and at low cost can be obtained.
[0011]
In the soundproof wall mounting structure according to claim 2, the upper surface edge forming the opening of the lower panel is supported via the trunk edge member that is laid between the columns, so that it is opened over the entire length between the columns. Can stably support the upper sound absorbing plate.
Therefore, in the soundproof wall mounting structure according to claim 2, the opening provided over the entire length in order to efficiently perform the restoration work has sufficient strength even if the sound absorbing plates are stacked on the upper part. Therefore, even if the blind panels are opened with the sound absorbing plates stacked, the safety work can be performed.
[0012]
In the soundproof wall mounting structure according to claim 3, since the blindfold panel can be separated at every support interval, the soundproof wall provided at a long distance can be opened arbitrarily, and the shorter one from the location where the accident occurred. By opening the wire rope to the fixed side of the wire rope, it is possible to remove the fixed one and pull out the wire rope up to the place where the accident occurred and replace the support column.
Therefore, in the soundproof wall mounting structure according to the third aspect, since the blindfold panel can be separated at every column interval, an effect that the restoration work can be performed more efficiently is obtained.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a soundproof wall mounting structure of the present invention will be described in detail with reference to the drawings. The same components as those in the conventional example described with reference to FIG.
FIG. 1 is an explanatory view showing a soundproof wall mounting structure according to the present embodiment, and FIG. 2 is an explanatory view showing a state in which a blindfold panel is opened.
In the figure, 1 is a partition wall provided along the edge of the expressway, where F is the roadway side (noise generation side) and B is the anti-roadway side. Reference numerals 2a and 2b denote anchor bolts planted on the road partition wall 1. The anchor bolt 2a is located on the roadway side and the anchor bolt 2b is located on the opposite roadway side.
Reference numeral 3 denotes a support, and the main body is formed of an H-shaped steel, and the base plate 4 is fixed by the anchor bolts 2a and 2b with the flanges 3a and 3a of the H-shaped steel facing the roadway side F and the anti-roadway side B. Is erected on the road partition wall 1.
Reference numeral 5 denotes a hole formed between the lower end of the web 3b of the support column (H-shaped steel) and the base plate 4, and allows a terminal portion (eye, thimble, wire clip, etc.) of the wire rope 6 described later to be easily inserted. It has a size.
The wire rope 6 is designed to prevent any of the pillars from standing upright at intervals of 2 meters, for example, against a soundproof wall length of several hundred meters to several kilometers. For example, one span is set to 100 m to prevent the dropping of the corresponding struts together, and has a length of 100 m + α, and both ends are fixed metal fittings or eye processed.
[0014]
Next, reference numeral 10 denotes a cover which covers the upper side of the wire rope 6 and the upper surface portion 10a on which the sound absorbing plate 9 is disposed and the other side of the wire rope 6 (on the opposite side B). ) And a substantially lower L-shaped lower panel 10A comprising an opening 10c that opens one side of the wire rope 6 (the roadway side F), and the opening 10c of the lower panel 10A can be freely opened and closed. It consists of a closed blindfold panel 10B. The blindfold panel 10B is formed in a substantially L shape with a size that also conceals the roadway side anchor bolt 2a.
[0015]
Further, 11 is a horizontal rib as a column side member that fixes both ends of the lower panel 10A to the column side, and 12 is a column side member that supports the upper edge 10d of the opening 10c of the lower panel 10A over the entire length. It is the trunk edge. The body edge 12 is formed in the shape of an angle member, and both end portions thereof are fixed to the roadway side flanges 3a of the adjacent struts, whereby an upper edge 10d of the opening of the lower panel 10A is formed on a side 12a which is vertical. Are fastened and fixed with bolts 13. Reference numeral 18 denotes an L-shaped bracket for fixing the lower side of the lower panel 10A on the side opposite to the roadway.
Further, an upper side 10e of the blindfold panel 10B is fastened and fixed by a tapping screw 14 to a side 12b that is horizontal to the body edge 12 so as to be opened and closed. The lower side 10f is also fastened and fixed by a tapping screw 14 to an L-shaped mounting bracket 15 fixed to the roadway side anchor bolt 2a.
[0016]
Reference numeral 9 denotes a sound absorbing plate. The sound absorbing plate 9 is inserted between the upper ends of the columns 3 and 3 between the grooves formed by the flanges 3a and 3a of both columns, and the lower surface thereof is attached to the upper surface plate 7b of the lower panel 7. It is in a wearing state by placing it. Since the sound absorbing plate 9 has a low length, it is stacked in, for example, four stages to ensure a total height of 2 m and obtain a good soundproofing effect. Reference numeral 19 denotes a wire rope that prevents the sound absorbing plate 9 from falling, and is fixed to the upper end of the sound absorbing plate while inserting an eyebolt or the like fixed to the side surface of the sound absorbing plate.
[0017]
Next, the operation of this embodiment will be described.
The soundproof wall mounting structure of the present embodiment is as shown in FIG. 1. For example, by setting the interval between the columns to 2 m, 51 columns 3 are erected for each span of 100 m, and the holes 5, 5,. ..., one wire rope 6 is passed through one after another and both ends are fixed.
And when there is an accident and the support | pillar 3 in the span is fallen, first, the blindfold panel 10B is opened over the span full length. This blindfold panel 10B can be easily opened by simply removing the tapping screw 14. In this state, the opening 10c of the lower panel 10A appears over the entire span. Since the lower panel 10A supports both ends with the horizontal ribs 11 and the trunk edge 12 supports the upper edge 10d of the opening over the entire length, it is not necessary to remove the sound absorbing plate 9.
[0018]
When the blindfold panel 10B is opened, the inner structure of the lower panel can be seen from the opening 10c, and the wire rope 6 for preventing the fall and the lower part of the column through which the wire rope 6 passes are exposed. Therefore, in the recovery work after the accident, the wire ropes 6 are pulled out from all the strut penetrations one after another through this opening.
When the wire rope 6 is eliminated, the column 3 at any position becomes independent, so that only the portion damaged by the accident can be removed. That is, first, the damaged sound absorbing plate 9 is removed, and then the damaged column 3 is removed. By doing so, the upper part of the road partition wall 1 is in an open state, and if there is a damaged part in the pillar mounting part such as the road partition wall 1 or the anchor bolts 2a and 2b, repair is made. After that, the removed part of the column is attached, the sound absorbing plate is mounted, the wire rope 6 is again passed through all the columns through the opening 10c, and both ends are fixed, thereby reproducing the complete sound barrier. Can do.
[0019]
As described above, in the soundproof wall mounting structure of the road according to the present embodiment, even if the wire rope 6 is passed through all the columns 3, 3,. Since the wire rope 6 can be removed through the opening 10c without removing all the sound absorbing plates 9, the struts 3 and the lower panel 10A, an excellent effect that the restoration work can be performed quickly and at low cost is obtained.
[0020]
The embodiment of the present invention has been described with reference to the drawings. However, the specific configuration is not limited to the above-described embodiment, and the present invention can be applied even if there is a design change without departing from the gist of the invention. included.
For example, the shape and fixing method of the lower panel 10A and the blindfold panel 10B can be arbitrarily set.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a soundproof wall mounting structure according to an embodiment of the present invention.
FIG. 2 is an explanatory view showing a state in which the blindfold panel of the embodiment is opened.
FIG. 3 is a front view showing a soundproof wall with a blindfold panel of the embodiment opened.
FIG. 4 is an explanatory view showing a conventional soundproof wall mounting structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Road partition wall 3 Support | pillar 5 Hole which lets a wire rope penetrate the support | pillar 6 Wire rope 9 Sound absorption board 10 Cover 10A Lower panel (cover)
10B Blindfold panel (cover)
10a Upper surface portion 10b of the lower panel Side surface portion 10c of the lower panel Opening portion 10d of the lower panel Opening edge 11 of the lower panel Horizontal rib (fixing both ends of the cover)
12 Body edge (attaching the upper edge of the cover's opening edge and blindfold panel)
15 L-shaped mounting bracket (attaching the bottom side of the blindfold panel)

Claims (3)

A sound barrier provided by mounting sound absorbing plates between struts erected at a predetermined interval, and a strut fall prevention wire between lower portions of the struts arranged in the span for each predetermined span of the sound barrier. In the soundproof wall mounting structure formed by penetrating the rope and fixing both ends, and the sound absorbing plate is placed on or close to the upper surface of the cover arranged to conceal the upper surface and both side surfaces of the wire rope,
The cover covers the upper side along the wire rope and opens the upper surface portion on which the sound absorbing plate is disposed, the side surface portion covering the other side surface of the wire rope, and one side surface side of the wire rope. A soundproof wall mounting structure comprising: a lower panel formed of an opening that is fixed to a column-side member; and a blind panel that closes the opening of the lower panel so as to be openable and closable. 2. The soundproof wall mounting structure according to claim 1, wherein the opening portion of the lower panel is supported by fixing the upper edge of the lower panel via a trunk edge member that is laid between the columns. The soundproof wall mounting structure according to claim 1 or 2, wherein at least the cover panel of the cover has a length of a support space and is formed to be independently separable between the support columns.

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