JP6920875B2 - Sound insulation panel and sound insulation wall - Google Patents

Description

The present invention relates to a sound insulation panel installed on a road shoulder of an expressway, a side wall of a railway, etc. to block noise of a traveling automobile, a train, etc., and a sound insulation wall provided with the sound insulation panel between columns. It relates to the frame structure of the translucent panel installed in the sound insulation wall where the visibility such as sunlight, view, intersections and interchanges is to be secured.

This type of sound insulation panel and sound insulation wall is often installed on the shoulder of a highway or on the side wall of a railway, and when a load from a truck or the like falls and hits the sound insulation panel, a large impact load momentarily acts on the sound insulation panel. May be done. Further, when a high-speed moving body such as an automobile or a train travels, a traveling wind is generated, and the traveling wind may momentarily act as a large wind load on the sound insulation panel and the sound insulation wall.

When the sound insulation panel and the sound insulation wall are installed on the viaduct, such a momentary impact load or wind load acts to destroy the sound insulation panel and the sound insulation wall and scatter them, and the fragments directly hit the underpass. There is a risk of causing a secondary disaster to pedestrians and private houses in the vicinity. In particular, on highways in the city center, buildings and private houses are built in the vicinity, and there are roads under the overpass, which may lead to serious accidents.

Therefore, in order to solve these problems, Patent Document 1 has an object of providing durability against a wind load and reducing the risk of scattering due to destruction of the resin plate (sound insulation plate). As a fixed structure to the frame body 2, a sound insulation wall is disclosed in which the end portion of the sound insulation plate 1 is rotatable semi-free end support (rotary end support: pin joint) instead of the fixed end support (Patent Document 1). Claim 1, claims, paragraphs [0011] to [0019] of the specification, FIGS. 1, 2, etc. of the drawings).

In the sound insulation wall described in Patent Document 1, the flexible sound insulation plate 1 is deformed and bent to prevent stress concentration at the fixed end, and the sound insulation plate 1 itself may be destroyed by an impact load or the like and scattered. Can be reduced. However, in the sound insulation wall described in Patent Document 1, when an external force equal to or greater than the proof stress of the frame body 2 is applied, the sound insulation plate 1 may fall off from the sound insulation wall, or the frame body 2 may be deformed and the entire sound insulation panel may fall out from the support of the sound insulation wall. There was a problem that there was a risk of doing so. That is, in the sound insulation wall described in Patent Document 1, when the sound insulation wall is installed on the viaduct, the sound insulation plate 1 can be prevented from being destroyed or scattered in such a situation, but it is assumed that the sound insulation panel itself is prevented from falling off from the sound insulation wall. There was a problem that the sound insulation panel itself could not be prevented from falling.

Further, such a sound insulation wall is stretched along the road on the shoulder of the road and installed over a long distance in order to prevent noise from being transmitted to the railway, houses around the road, and the like. Therefore, there is a demand for a structure with good construction efficiency at the time of installation. In addition, among the sound insulation walls, the sound absorbing panel and the translucent panel parts are not standardized, and the upper and lower frames of the panel frame are not standardized, resulting in a large number of parts and manufacturing costs. There was also a problem that the price became high.

Japanese Unexamined Patent Publication No. 2002-332616

Therefore, the present invention has been devised in view of the above-mentioned problems, and an object of the present invention is to destroy the sound insulation panel or to insulate sound even when a large impact load or wind load is momentarily applied. It is an object of the present invention to provide a sound insulation panel and a sound insulation wall in which there is no possibility that the panel will fall together with the frame, construction efficiency is good, parts can be standardized, and manufacturing cost can be reduced.

The sound insulation panel according to the first invention is a sound insulation panel that blocks noise from a noise source, and includes a sound insulation plate made of a plate-shaped member and a rectangular frame into which the sound insulation plate is fitted. The frame is composed of a pair of upper and lower horizontal frames and a pair of left and right vertical frames. A plate-shaped reinforcing rib having a plate surface along the line is formed, and the frame body has, in addition to the pair of left and right vertical frames, an intermediate vertical frame connecting the upper frame and the lower frame of the horizontal frame. The intermediate vertical frame is characterized in that it is screwed to the horizontal frame through holes formed in the upper surface or the lower surface of the upper frame and the lower frame.

In the first invention, the sound insulation panel according to the second invention is a plate having a plate surface along the horizontal direction in the horizontal frame at the center position in the vertical direction on the outside of the noise source to reinforce the bending rigidity. It is characterized in that a shaped reinforcing rib is formed.

The sound insulation panel according to the third invention is characterized in that, in the first invention or the second invention, the horizontal frame has substantially the same shape as the upper frame and the lower frame.

The sound insulation panel according to the fourth invention is the invention of any one of the first to third inventions, wherein the sound insulation plate is a light-transmitting plate made of a translucent resin, glass, or a resin and a plate-like member of glass. It is characterized by being.

The sound insulation wall according to the fifth aspect of the present invention is a sound insulation wall including a plurality of columns erected on an installation surface at predetermined intervals and a plurality of sound insulation panels inserted between the columns. Any one of the sound insulation panels of the above is the sound insulation panel according to any one of claims 1 to 4 .

According to the first to fifth inventions, since the reinforcing ribs for reinforcing the bending rigidity are formed at the center position of the horizontal frame in the vertical direction on the noise source side, the sound insulating panel is repeatedly bent stress by an external force. Even if it acts, it can be countered and the durability is improved.

Further, according to the first to fifth inventions, a large impact that momentarily exceeds the design strength of the frame on the sound insulation panel due to the traveling of a high-speed moving body such as an automobile or a train, a gust of wind, the influence of a collision object, or the like. Even when a load or wind load is applied, the reinforcing ribs can yield and plastically deform such as buckling to absorb the impact load and the like. Therefore, there is less risk that the sound insulation panel will be destroyed or the sound insulation panel will fall together with the frame.
Further, according to the first to fifth inventions, there is no cross-sectional defect due to the hole for screwing on the side surface of the horizontal frame on which bending stress is applied by an external force, and cracks or the like due to repeated load are less likely to occur. Further, according to the first to fifth inventions, the external force acting on the intermediate vertical frame is easily transmitted to the horizontal frame, and the reinforcing ribs are provided when an impact load or a wind load exceeding the proof stress of the frame is applied. It can yield and absorb impact loads, etc., and prevent bending failure of the entire frame. Therefore, even if an impact load of an accident exceeding the design load or a wind load such as a gust acts, the sound insulation panel itself can be prevented from falling off from the support of the sound insulation wall and falling off to spread the damage.

In particular, according to the second invention, a plate-shaped reinforcing rib having a plate surface along the horizontal direction for reinforcing the bending rigidity is also formed at the center position in the vertical direction on the outside of the noise source of the horizontal frame. Therefore, the sound insulation panel can be made durable against repeated loads.

In particular, according to the third invention, since the upper frame and the lower frame have the same shape, the number of parts can be reduced and the manufacturing cost can be reduced. For example, when the installation surface is the upper surface of a concrete structure, or when it is used as the lowermost stage when stacking multiple sound insulation panels, the lower frame of the lowermost stage may be modified or modified so that there is no gap. It is not necessary to apply. Further, since the upper and lower frames of the horizontal frame are the same, the construction efficiency is good when the horizontal frame is installed over a long distance, and the installation cost of the sound insulation panel can be reduced.

It is a perspective view which shows the sound insulation wall which concerns on embodiment of this invention. It is a perspective view which shows the sound insulation panel which concerns on embodiment of this invention. It is a front view of the sound insulation panel of the same as above. It is a top view of the sound insulation panel of the same as above. It is the right side view of the sound insulation panel of the same above. It is an enlarged horizontal cross-sectional view which shows the vertical frame of the sound insulation panel of the same above in an enlarged manner. It is an enlarged vertical cross-sectional view which shows by omitting the light-transmitting plate in which the horizontal frame of the sound insulation panel of the same above is fitted. It is an enlarged horizontal cross-sectional view which shows the intermediate vertical frame of the sound insulation panel of the same above in an enlarged manner.

Hereinafter, the sound insulation panel and the sound insulation wall according to the embodiment of the present invention will be described in detail with reference to the drawings.

[Sound insulation wall]
First, the sound insulation wall according to the embodiment of the present invention will be described with reference to FIG. FIG. 1 is a perspective view showing a sound insulation wall according to an embodiment of the present invention. As shown in FIG. 1, the sound insulation wall W according to the present embodiment includes a plurality of columns C erected on the installation surface at predetermined intervals, and a plurality of sound insulation panels inserted between the columns C and C. It is composed of a translucent panel P, ..., P, etc. It should be noted that a sound insulation wall in which a translucent panel P is installed over the entire surface will be described as an example for the purpose of ensuring the visibility of sunlight, views, intersections, interchanges, etc. on the viaduct of the viaduct.

The support column C is made of H-shaped steel erected on the balustrade of the viaduct, which is a concrete structure, at a pitch of 3 m according to the width of the translucent panel P. Of course, the strut according to the present invention is not limited to H-shaped steel, but is a strip material having strength that can withstand wind pressure and collision load, such as channel steel, and having a groove for inserting the translucent panel P described later. If there is, it is not particularly limited. Further, although the illustrated support exemplifies a linear support, the support according to the present invention is not limited to a straight line, and is curved or bent inward in order to prevent sound from wrapping around from above. It goes without saying that it is okay to do so.

[Sound insulation panel]
Next, the sound insulation panel according to the embodiment of the present invention will be described with reference to FIGS. 2 to 8. FIG. 2 is a perspective view showing a translucent panel P which is a sound insulation panel according to an embodiment of the present invention, FIG. 3 is a front view of the translucent panel P, and FIG. 4 is a plan view of the translucent panel P. FIG. 5 is a right side view of the translucent panel P.

As shown in FIGS. 2 to 5, the translucent panel P includes three translucent translucent plates 1 which are sound insulation plates, and a rectangular frame 2 into which these translucent plates 1 are fitted. It has a function of blocking noise from high-speed traveling bodies such as automobiles and trains traveling on the viaduct, which is a noise source.

(Translucent plate)
The translucent plate 1 is a translucent plate having translucency for the purpose of ensuring sunshine, a view, and a line of sight. On the translucent plate 1 according to the present embodiment, two chemically strengthened glasses 10 each having a pair of front and back surfaces having a thickness of 4 mm, a height of 1415 mm, and a width of 907 mm, which are strengthened by chemically treating the surface, are pressure-bonded via a resin film 11. A chemically strengthened laminated glass having a thickness of 9.5 mm is used (see FIGS. 6 to 8).

Of course, the above-mentioned dimensions are an example, and are not particularly limited, and it goes without saying that the dimensions may be appropriate so that the light-transmitting plate does not fall off. Further, the translucent plate is not limited to the chemically strengthened laminated glass, and may be a translucent plate made of resin glass such as polycarbonate or acrylic resin. Further, the light-shielding plate according to the present invention does not necessarily have to have translucency as long as it can reflect noise.

(Frame body)
The frame body 2 is a horizontally long rectangular frame body made of alumite having a total width of 3000 mm and a total height of 1500 mm, in which an aluminum alloy is die-cast and a passivation film is formed on the surface by electrolytic treatment. The frame body 2 is composed of a pair of left and right vertical frames composed of a left frame 20 and a right frame 21, and an upper frame 22 and a lower frame 23 bridged over the upper and lower ends of the left frame 20 and the right frame 21. It is composed of a pair of upper and lower horizontal frames, and two intermediate vertical frames 24 and 24 inserted in the middle of the upper frame 22 and the lower frame 23. The three transmissive plates 1 described above are fitted between the vertical frame, the horizontal frame, and the intermediate vertical frame.

(Vertical frame)
FIG. 6 is an enlarged horizontal cross-sectional view showing an enlarged right frame 21 which is a vertical frame of the translucent panel P. Since the left frame 20 is symmetrical with the right frame, only the right frame 21 will be described and the description thereof will be omitted. As shown in FIG. 6, the right frame 21 is composed of a vertical frame main body 21a, a ridge 21b, a reinforcing member 21c, a back packing 21d, and the like, and has a length (height) of 1425 mm × width of 90 mm × depth of 90 mm. It is a frame made of alumite.

The vertical frame main body 21a is formed of a back surface portion 210 having a rectangular cross section, a groove portion 211 open to the outside, and the like. The ridge 21b is fastened to the groove 211 with a stainless steel tapping screw N1 at a position facing the back surface 210 with the light transmitting plate 1 interposed therebetween. After the light-transmitting plate 1 is installed on the vertical frame main body 21a, the ridge 21b is fastened with a tapping screw N1, and the gaps between the back surface 210 and the light-transmitting plate 1 and the ridge 21b and the light-transmitting plate 1 are silicon, respectively. It is sealed with a sealing material S1 made of resin. Of course, the sealing material S1 is not limited to the silicon resin, and may be a sealing material made of another resin, or may be sealed with a rubber or resin gasket such as chloroprene rubber.

Further, at the upper end of the groove portion 211, a reinforcing member 21c having a U-shaped cross section for reinforcing the groove portion 211 is fixed by a plurality of rivets L1. The hole 21e formed in the reinforcing member 21c is a hole for inserting a wire for preventing the translucent panel P from falling off from the support column C in the event of a collision or the like.

The back packing 21d is a rubber packing made of chloroprene rubber, and by interposing between the support column C and the vertical frame main body 21a, it functions as a slip stopper, a water stop, and a cushioning material.

(Horizontal frame)
FIG. 7 is an enlarged vertical cross-sectional view showing the translucent plate 1 in which the horizontal frame of the translucent panel P is fitted, omitting the middle part. The upper frame 22 and the lower frame 23 have the same standardized shape in which the aluminum alloy (alumite) portion, which is the main component, is common to the frames of other sound insulation panels other than the translucent panel. Therefore, the upper frame 22 will be mainly described, and the description of the lower frame 23 will be omitted. By making the aluminum alloy (alumite) portion, which is the main component of the upper frame 22 and the lower frame 23, the same shape, the number of components can be reduced and the manufacturing cost can be reduced.

As shown in FIG. 7, the upper frame 22 includes a horizontal frame main body 22a (23a), an inner reinforcing rib 22b (23b) for reinforcing the bending rigidity formed in the horizontal frame main body 22a (23a), and an outer side. It is a frame made of alumite having a length of 3000 mm, a width of 95 mm, and a height of 70 mm, which is composed of reinforcing ribs 22c (23c) and the like.

Further, a groove portion 220 (230) is formed in the horizontal frame main body 22a (23a), and the above-mentioned translucent plate 1 is inserted in the groove portion 220 (230). The gap between the light transmitting plate 1 and the groove 220 (230) is sealed with a sealing material S1 made of silicon resin.

The inner reinforcing ribs 22b (23b) and the outer reinforcing ribs 22c (23c) are located at just intermediate positions between the upper and lower ends of the horizontal frame main body 22a (23a), that is, from the upper and lower ends of the horizontal frame main body 22a (23a) having a height of 70 mm. It is formed so that the center position in the height direction of the plate surface along the horizontal direction of the reinforcing rib comes to the position of 35 mm. Therefore, the flexural rigidity of the horizontal frame, which is as long as 3010 mm in the lateral direction and has a substantially rectangular vertical cross section and is vulnerable to bending stress in the horizontal direction, is effectively increased by the inner reinforcing ribs 22b (23b) and the outer reinforcing ribs 22c (23c). Can be reinforced.

However, even if the reinforcing rib according to the present invention is not formed at the center position in the height direction, it is sufficient that the reinforcing rib is near an intermediate position that can effectively counter the bending stress acting on the horizontal frame. Needless to say.

The inside refers to the traveling path side of a high-speed traveling body such as an automobile or a train, which is the noise source side, and the outside refers to the opposite side. The reinforcing rib according to the present invention may be located inside or outside the horizontal frame from the viewpoint of countering repeated loads such as wind pressure, but considering the collision load and the like, the inside has a high risk of collision. It is preferable to be in. Further, considering that it can withstand a tornado-like gust and a larger collision load, it is preferable that it is located both inside and outside like the horizontal frame according to the present embodiment.

Since the reinforcing ribs are formed on both the inside and the outside like the horizontal frame according to the present embodiment, the wind pressure when a high-speed traveling body such as an automobile or a train travels inside the translucent panel P Even when repeated bending stress acts on the translucent panel P, it can be effectively countered, and as a result, the durability of the translucent panel P is improved.

Further, the inner reinforcing ribs 22b (23b) and the outer reinforcing ribs 22c (23c) are intermediate in which the horizontal frame main body 22a (23a) having a substantially rectangular vertical cross section is deformed by the bending stress in the horizontal direction and has the largest amount of deformation. It is formed at the position.

For this reason, the design strength of the frame 2 (horizontal frame: upper frame 22, lower frame 23) is momentarily exceeded by the sound insulation panel due to the traveling of a high-speed moving body such as an automobile or a train, a gust of wind, or the influence of a collision object. Even when a large impact load or wind load is applied, the inner reinforcing ribs 22b (23b) and the outer reinforcing ribs 22c (23c) yield and plastically deform such as buckling to absorb the impact load and the like. Therefore, there is less possibility that the entire translucent panel P is destroyed or the frame 2 is dropped together.

As shown in FIG. 7, a base packing BP made of foamed polyethylene resin is adhered to the lower surface of the lower frame 23 according to the present embodiment for the purpose of closing the vertical gap between the translucent panels P and stopping water. Has been done.

(Intermediate vertical frame)
FIG. 8 is an enlarged horizontal cross-sectional view showing an enlarged intermediate vertical frame 24 of the translucent panel P. As shown in FIG. 8, the intermediate vertical frame 24 is an alumite having a length of 1425 mm, a total width of 105 mm, and a depth of 86 mm, which is composed of a middle frame main body 24a having a convex horizontal cross section and a pair of left and right ridges 24b and 24c. It is a frame made of.

The inner frame main body 24a has a protruding portion 240 protruding inward from a rectangular frame having a flat horizontal cross section, and a pair of ridges 24b and 24c are made of stainless steel on both left and right sides of the protruding portion 240. It is fastened with a tapping screw N2. Then, the light transmitting plate 1 is inserted between the ridges 24b and 24c and the middle frame main body 24a.

As a procedure for mounting the light-transmitting plate 1, after the light-transmitting plate 1 is mounted on the middle frame main body 24a, the ridges 24b and 24c are fastened with tapping screws N2, and as shown in FIG. The gap between the light-transmitting plate 1 and the gaps between the ridges 24b and 24c and the light-transmitting plate 1 are each sealed with a sealing material S1 made of silicon resin.

Further, the intermediate vertical frame 24 is fixed to the horizontal frame by screwing a stainless steel tapping screw N3 into a spare hole drilled in advance on the upper surface or the lower surface of the upper frame 22 and the lower frame 23 to fix (screw) the intermediate vertical frame 24. (See Fig. 4 etc.).

Conventionally, such fixing of the intermediate vertical frame to the horizontal frame has been screwed to the side surface of the horizontal frame. However, even though it is screwed, the screwing hole is nothing but a cross-sectional defect of the horizontal frame, and cracks are formed from the screwing hole due to repeated horizontal loads such as wind pressure load. There was a problem that it would end up.

On the other hand, in the translucent panel P according to the present embodiment, as described above, the intermediate vertical frame is provided through the screwing holes formed in the upper surface or the lower surface of the horizontal frame (upper frame 22, lower frame 23). 24 is screwed and fixed. For this reason, there is no cross-sectional defect due to the holes for screwing on the side surface of the horizontal frame on which bending stress acts due to an external force such as wind pressure, and cracks or the like due to repeated load are less likely to occur.

Further, the structure is such that the external force acting on the intermediate vertical frame 24 is easily transmitted to the horizontal frame, and when an impact load or a wind load exceeding the proof stress of the frame body 2 is applied, the reinforcing ribs (inner reinforcing ribs 22b, 23b and the outer side) are applied. Reinforcing ribs 22c, 23c) yield and absorb impact loads and the like, and bending breakage of the entire frame body 2 can be prevented. Therefore, even if an impact load of an accident exceeding the design load or a wind load such as a gust acts, it is possible to prevent the translucent panel P itself from falling off from the support column C of the sound insulation wall W and falling off to spread the damage. can.

According to the translucent panel P and the sound insulation wall W according to the present embodiment described above, the reinforcing ribs 22b for reinforcing the bending rigidity are located at the center positions in the vertical direction inside the horizontal frame (upper frame 22, lower frame 23). Since 23 and 23b are formed, even when a repeated bending stress is applied to the translucent panel P (sound insulation panel) by an external force, it can be countered and the durability against the repeated stress is improved.

Further, according to the translucent panel P and the sound insulation wall W according to the present embodiment, the design strength of the frame is instantaneously applied to the translucent panel P due to the traveling of a high-speed moving object such as an automobile or a train or the influence of a collision object. Even when a large impact load or wind load that exceeds the impact is applied, the reinforcing ribs 22b, 23b (or 22c, 23c) can yield and plastically deform such as buckling to absorb the impact load and the like. Therefore, there is less possibility that the translucent panel P is destroyed or the translucent panel P is dropped together with the frame body 2.

Further, according to the translucent panel P and the sound insulation wall W according to the present embodiment, since the upper frame 22 and the lower frame of the horizontal frame have the same shape, the number of parts is reduced and the manufacturing cost is reduced. Can be done. For example, as illustrated as the sound insulation wall W according to the present embodiment, when the installation surface is the upper surface of a concrete structure such as a viaduct balustrade, or when it is used as the lowest stage when a plurality of sound insulation panels are stacked. , It is not necessary to make any accessories or modifications to the lower frame at the bottom so that there are no gaps. Further, since the upper and lower frames of the horizontal frame are the same, the construction efficiency is good when the horizontal frame is installed over a long distance, and the installation cost of the sound insulation panel can be reduced.

The sound insulation panel and the sound insulation wall according to the embodiment of the present invention have been described in detail above, but the above-mentioned or illustrated embodiment is merely an embodiment embodied in carrying out the present invention. , The technical scope of the present invention should not be construed in a limited manner by these.

In particular, as the sound insulation panel, a translucent panel having a translucent property that allows the other side of the panel to be seen through has been described as an example, but the present invention is also applied to a frame structure of a sound insulation panel in which a sound insulation plate capable of reflecting noise is fitted. Can be done. Of course, the present invention can also be suitably applied when some of the sound insulating walls are used as translucent panels.

W: Sound insulation wall C: Support P: Translucent panel (sound insulation panel)
1: Translucent plate (sound insulation plate)
10: Chemically tempered glass 11: Resin film 2: Frame body 20: Left frame (vertical frame)
21: Right frame (vertical frame)
21a: Vertical frame body 210: Back surface 211: Groove 21b: Pushing edge 21c: Reinforcing member 21d: Back packing 21e: Hole 22 (for inserting a fall-prevention wire) 22: Upper frame (horizontal frame)
23: Lower frame (horizontal frame)
220, 230: Grooves 22a, 23a: Horizontal frame main bodies 22b, 23b: Inner reinforcing ribs (reinforcing ribs)
22c, 23c: Outer reinforcing rib (reinforcing rib)
BP: Base packing 24: Intermediate vertical frame (middle frame)
24a: Middle frame body 240: Protruding portions 24b, 24c: Riding edge L1: Rivet N1, N2, N3: Tapping screw S1: Sealing material

Claims (5)

A sound insulation panel that blocks noise from noise sources.
A sound insulation plate made of a plate-shaped member and a rectangular frame in which the sound insulation plate is fitted are provided.
This frame consists of a pair of upper and lower horizontal frames and a pair of left and right vertical frames.
The pair of upper and lower horizontal frames are formed with plate-shaped reinforcing ribs having a plate surface along the horizontal direction for reinforcing bending rigidity at a central position in the vertical direction on the noise source side .
In addition to the pair of left and right vertical frames, the frame body has an intermediate vertical frame that connects the upper frame and the lower frame of the horizontal frame.
The intermediate vertical frame is a sound insulation panel characterized in that the intermediate vertical frame is screwed to the horizontal frame through holes formed in the upper surface or the lower surface of the upper frame and the lower frame. The horizontal frame is characterized in that a plate-shaped reinforcing rib having a plate surface along the horizontal direction for reinforcing bending rigidity is also formed at the center position in the vertical direction on the outside of the noise source. The sound insulation panel according to claim 1. The sound insulation panel according to claim 1 or 2, wherein the horizontal frame has substantially the same shape as the upper frame and the lower frame. The sound insulation panel according to any one of claims 1 to 3 , wherein the sound insulation plate is a translucent resin, glass, or a translucent plate made of resin and a plate-like member of glass. A sound insulation wall provided with a plurality of columns erected on an installation surface at predetermined intervals and a plurality of sound insulation panels inserted between these columns.
A sound insulation wall according to any one of claims 1 to 4 , wherein any one of the plurality of sound insulation panels is the sound insulation panel.

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