JP6978261B2 - Soundproof panel unit, soundproof panel unit construction method, soundproof wall repair method - Google Patents

Description

The present invention relates to a soundproof panel unit in which a plurality of steel soundproof panels in which vertical ribs are formed with both outer ends folded back and a support column and a panel are integrated are joined.

Conventionally, a soundproof panel in which a support and a panel are integrated is erected on a structural frame such as a ground covering along the edge of the viaduct and a balustrade foundation, and noise generated from the railroads and roads in the viaduct leaks to the surroundings. A soundproof wall consisting of a soundproof panel unit is known.

For example, in Patent Document 1, a precast concrete soundproof panel provided with a fixing portion fixed to the upper surface of a reinforced concrete structure and a panel portion standing up against the concrete structure is arranged on the upper surface by anchor bolts. A precast concrete soundproof wall configured by fixing it in a shape, characterized in that a waterproof material is interposed between the upper surface and the lower surface of the fixed portion along the installation direction, and a precast concrete soundproof wall thereof. The construction method is disclosed (see claims 1 and 4 of the scope of patent claims in Patent Document 1, paragraphs [0005] to [0023] of the specification, FIGS. 1 and 2 of the drawings).

However, since the precast concrete soundproof wall disclosed in Patent Document 1 and its construction method are heavy and difficult to install without a lifting machine such as a crane, they are installed in a narrow place. Not only was it not possible, but there was also the problem of increasing costs. Further, since the precast concrete soundproof wall disclosed in Patent Document 1 is a concrete soundproof wall, there is a possibility that the panel surface may peel off due to aged deterioration or the like, and there is a possibility that the peeled piece may fall. There was also.

Further, Patent Document 2 describes an FRP soundproof wall 1 having a soundproof portion 2 and a mounting portion 3 attached to a building frame 14 provided below the soundproof portion 2, wherein the soundproof portion 2 is at least a panel portion 4. The soundproof wall is disclosed in which the weight per unit area of the panel portion 4 is 5 kg / m ² or more and less than 10 kg / m ² (claim 1, claim 1 of the specification). Paragraphs [0016] to [0036], see FIGS. 1, 2, etc. in the drawings).

It is said that the soundproof wall described in Patent Document 2 can maximize the lightness while ensuring the necessary sound insulation performance and minimize the materials used, so that the manufacturing cost can be reduced. Further, since it is made of FRP, there is no problem of surface peeling unlike a soundproof panel made of concrete.

However, since the soundproof wall described in Patent Document 2 is made of FRP, a mold is usually required, and a special part such as an end length portion, a corner portion, a curved surface portion, and a slope portion that cannot be accommodated by a normal one unit. There was a problem that it was difficult to manufacture and construct. Further, since the soundproof wall described in Patent Document 2 is made of FRP, if a part of the soundproof wall is damaged due to a collision of a ballast or an accident, it is necessary to replace one unit of the soundproof wall in the vicinity thereof. There was also the problem of being uneconomical.

Japanese Unexamined Patent Publication No. 2000-144648 Japanese Unexamined Patent Publication No. 2013-204234

Therefore, the present invention has been devised in view of the above-mentioned problems, and an object thereof is that the end scale portion and the special portion can be easily manufactured and the repair when damaged is short. It is an object of the present invention to provide a soundproof panel unit, a method of constructing a soundproof panel unit, and a method of repairing a soundproof wall, which can be inexpensively performed.

The soundproof panel unit according to the first invention is a soundproof panel unit in which a plurality of steel soundproof panels having vertical ribs folded at both ends are joined, and the steel soundproof panel is provided on a structural frame. It consists of two types of panels, a fixed panel that is fixedly supported by the structural frame via a base plate that is fastened with anchor bolts, and an intermediate panel that is connected to at least one side end of the fixed panel. The fixing panel and the intermediate panel are dry-bonded to each other, and the intermediate panel is not fixed to the base plate .

The soundproof panel unit according to the second invention is characterized in that, in the first invention, at least a pair of the fixed panels are provided on the left and right sides, and at least one intermediate panel is provided between the pair of the fixed panels. do.

The soundproof panel unit according to the third invention is characterized in that, in the first invention or the second invention, the vertical ribs are formed so that the width becomes smaller toward the upper side.

In the soundproof panel unit according to the fourth invention, in any one of the first to third inventions, the vertical rib is folded back toward the noise source side of the structural frame, and the vertical rib of the intermediate panel is formed. The tip of the intermediate panel is characterized in that a fall-prevention rib is formed so as to be folded back toward the adjacent panel side of the intermediate panel.

In any one of the first to fourth inventions, the soundproof panel unit according to the fifth invention includes the base plate fastened by the anchor bolts provided on the structural frame as a separate member from the fixing panel, and the base plate. Is detachably joined to the vertical rib of the fixed panel.

The soundproof panel unit according to the sixth aspect of the invention is characterized in that, in the fifth aspect of the invention, the base plate is fastened to the anchor bolt via a holding metal fitting which is a member different from the base plate.

The soundproof panel unit according to the seventh aspect of the invention is characterized in that, in any one of the first to sixth inventions, the fixed panel and the intermediate panel are configured so that a soundproof material can be attached to the panel portion. do.

The construction method of the soundproof panel unit according to the eighth invention is a construction method of the soundproof panel unit for installing the soundproof panel unit according to any one of the first to seventh inventions on the structural frame, and is the construction method of the soundproof panel unit. Units are installed one after another in the construction section, and the soundproof panel unit that has already been installed and the remaining end length part of the construction section are measured on-site, and the intermediate panel is based on the measured length of the end length part. It is characterized in that the soundproof panel unit is installed on the end length portion by changing only the width of the above.

The method for repairing a soundproof wall according to a ninth invention is a method for repairing a soundproof wall provided with a soundproof panel unit according to any one of the first to seventh inventions, and is made of the damaged steel. It is characterized in that only the damaged steel soundproof panel is replaced by removing the dry joint between the steel soundproof panels while the steel soundproof panel excluding the soundproof panel is erected.

According to the first to ninth inventions, the steel soundproof panel is composed of two types of panels, a fixed panel and an intermediate panel, and the fixed panels and the fixed panel and the intermediate panel are bolted or riveted. Since they are separably joined by dry joining such as joining, it is easy to manufacture end scales and special parts simply by changing the width and shape of the steel intermediate panel. In addition, since it is a soundproof panel made of steel and each panel is configured to be separable by dry joining, repair in case of damage can be done by simply replacing the panel in that part, and maintenance is easy and if it is damaged. Repair can be done in a short time and at low cost.

Moreover, according to the first to ninth inventions, since the soundproof panel is made of steel, it is lighter than the soundproof panel made of concrete, is easy to install, and does not cause the problem of surface peeling. ..

In particular, according to the second invention, not only the soundproof panel can be installed without installing a support column, but also each panel is configured to be separable, so that the panel in that part can be repaired in case of damage. It only needs to be replaced, and it can be made cheaper in a short time. In addition, the length of the entire soundproof wall can be adjusted by simply changing the width and shape of the steel intermediate panel, and the adjustment is easy. Since it is a steel plate, it can be processed on-site.

In particular, according to the third invention, it is possible to reduce the folding back of the vertical ribs in the portion where the bending moment acting is small, and to achieve weight reduction of the member.

In particular, according to the fourth invention, it is possible to facilitate repair, adjustment, replacement and installation of the intermediate panel without installing an external scaffold, and to reliably prevent the intermediate panel from falling off to the outside of the bridge. ..

In particular, according to the fifth invention, the base plate is removable and the ribs are not formed on the base plate, so that the water accumulated at the feet of the panel can be easily drained and the durability can be improved.

In particular, according to the sixth invention, the weight can be further reduced by using the presser foot in the vicinity of the anchor where the stress is concentrated as a separate member.

In particular, according to the seventh invention, the soundproofing effect can be enhanced, and noise can be further reduced after the product is installed on site. Therefore, it is possible to improve the sound environment after installation.

In particular, according to the eighth invention, the end scale portion is actually measured in the field, and only the width of the intermediate panel is changed based on the actually measured length of the end scale portion, and the soundproof panel unit is attached to the end scale portion. Since it can be installed, it is easy to install and can be installed in a short time, and the installation cost can be reduced.

In particular, according to the ninth invention, while the steel soundproof panel excluding the damaged steel soundproof panel is erected, only the damaged steel soundproof panel is removed from the dry joint between the steel soundproof panels. Since it can be replaced, repair in case of damage can be done by simply replacing the panel of that part, maintenance is easy, repair in case of damage can be made cheaper in a short time, and running costs can be reduced. can.

It is an inside perspective view which shows the soundproof panel unit which concerns on embodiment of this invention. It is an exploded perspective view which shows the structure of the soundproof panel unit of the same above. It is an outside perspective view which shows the soundproof panel unit of the same above. It is an inside front view which shows the state which the punching metal is attached to the soundproof panel unit of the same above. It is a top view which shows the soundproof panel unit of FIG. FIG. 5 is a sectional view taken along line AA showing the soundproof panel unit of FIG. It is a figure which shows only the punching metal attached to the said soundproof panel unit, (a) is a front view, (b) is a plan view, (c) is a side view. It is a schematic diagram which shows the combination of the fixed panel and the intermediate panel of the soundproof panel unit of the same above. It is a schematic diagram which shows another embodiment of the combination of the soundproof panel unit of FIG. It is a perspective view which shows the attachment / detachment of the intermediate panel of the soundproof panel unit of the same above. It is an enlarged perspective view which shows the fall prevention rib of the intermediate panel of the soundproof panel unit of the same above. It is a perspective view which enlarges and shows the cross section of the rivet joint between the panels of the soundproof panel unit of the same above. It is a process explanatory drawing which shows the unit carry-in installation process of the construction method of the soundproof panel unit which concerns on embodiment of this invention. It is a process explanatory drawing which shows the holding metal fitting mounting process of the construction method of the soundproof panel unit of the same above. It is a process explanatory drawing which shows the bolt fastening process of the construction method of the soundproof panel unit of the same above, and the unit carry-in installation process of the next unit. It is a perspective view which shows the state which the construction method of the soundproof panel unit of the above is completed, and the soundproof wall is completed.

Hereinafter, the soundproof panel unit, the method of constructing the soundproof panel unit, and the method of repairing the soundproof wall according to the embodiment of the present invention will be described in detail with reference to the drawings.

First, the soundproof panel unit 1 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 7.

The soundproof panel unit 1 according to the present embodiment is installed as a balustrade provided along the edge of a bridge such as a railroad bridge or a road bridge, and constitutes a soundproof wall for preventing noise generated from a railroad or a road from leaking to the surroundings. It is something to do.

FIG. 1 is an inner perspective view showing a soundproof panel unit 1 according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing a configuration of the soundproof panel unit 1, and FIG. 3 shows a soundproof panel unit. It is an outside perspective view. As shown in FIGS. 1 to 3, the soundproof panel unit 1 according to the present embodiment is a soundproof panel unit in which three steel soundproof panels in which a support and a panel are integrated are joined, and is combined with a fixed panel 2. It is mainly composed of two types of panels of the intermediate panel 3.

Both the fixed panel 2 and the intermediate panel 3 are steel soundproof panels in which vertical ribs are formed by folding both outer ends of a steel plate made of a vertically long rectangular (rectangular) highly corrosion-resistant plated steel plate. Further, the fixed panel 2 and the intermediate panel 3 have vertical ribs formed at both ends on the outer side to form a U-shaped horizontal cross section, thereby ensuring bending rigidity in the panel and enabling the panel to be erected without a support. The construction period is shortened by omitting the process of burying the columns in the structural frame.

Moreover, by using a steel soundproof panel without columns, it is lighter than a concrete soundproof panel and easy to install. In addition, the problem of surface peeling can be solved. Furthermore, since it is a steel plate, it is easy to cut and weld, and it is easy to process it on site. The soundproof panel unit 1 (fixed panel 2 and intermediate panel 3) will be described in the form of a vertically long rectangle (rectangle), but the present invention is not limited to this, and the soundproof panel unit 1 (fixed panel 2 and the intermediate panel 3) may be a horizontally long rectangle (rectangle) or a square shape. Can be done.

(Fixed panel)
The fixed panel 2 is a panel arranged at the left and right ends of the soundproof panel unit 1 and fixedly supported by a structural frame such as a ground cover or a balustrade foundation, and the intermediate panel 3 is joined to the fixed panel 2 by being joined to the fixed panel 2. It is a fixedly supported panel. The fixing panel 2 is fixed to the structural skeleton by using the base plate 4 and the holding metal fitting 5, which will be described later, to bolt-join the anchors that are projected or embedded in the structural skeleton.

As shown in FIG. 2, the fixed panel 2 is composed of a vertically long rectangular (rectangular) panel main body 20, vertical ribs 21 and 22 having both ends of the panel main body 20 folded back inside the bridge, and the like. ing.

As shown in FIG. 2, the vertical ribs 21 and 22 are symmetrical reinforcing ribs that are folded back to improve the bending rigidity of the panel body 20, and are formed in a trapezoidal shape so that the width becomes smaller toward the upper side. Has been done. Further, the protruding ends of the vertical ribs 21 and 22 are formed with folded pieces 21a and 22a that are further folded back inside the panel main body 20.

When engaging the soundproof panel unit 1 with a panel unit adjacent to the panel unit 1, it is preferable to use a fixed panel 2'in which the protruding end of the vertical rib 22 is a folded piece 22a'folded outward. Further, the plate thickness of the fixed panel 2 can be 1.6 mm to 2.3 mm.
In addition, if the space between the vertical ribs 22 is sized to accommodate humans, it can also be used as a space for evacuation from work vehicles, etc. when installing soundproof panels, and a space for attaching communication incidental equipment, signs, etc. It can be used.

(Intermediate panel)
As shown in FIG. 2, the intermediate panel 3 is composed of a vertically long rectangular (rectangular) panel main body 30, vertical ribs 31 and 32 having both ends of the panel main body 30 folded inward of the bridge, and the like. ing.

Similar to the fixed panel 2, the vertical ribs 31 and 32 are also symmetrical reinforcing ribs that are folded back to improve the bending rigidity of the panel body 30, and are trapezoidal so that the width decreases toward the top. It is formed. Further, at the tip of the vertical ribs 31 and 32, fall prevention ribs 31a and 32a that are further folded back to the outside of the panel main body 30 are formed (see also FIG. 11). Further, the thickness of the intermediate panel 3 can be 1.6 mm to 2.3 mm. In addition, if the space between the vertical ribs 22 is sized to accommodate humans, it can also be used as a space for evacuation from work vehicles, etc. when installing soundproof panels, and a space for attaching communication incidental equipment, signs, etc. It can be used.

(Base plate)
As shown in FIG. 2, the base plate 4 is a member formed by bending a steel plate having a thickness of about 4.5 mm, which is made of a highly corrosion-resistant plated steel plate, into a box shape in which two surfaces, an upper surface and a front surface, are open. Two anchor holes 4a through which anchors are inserted are bored in the bottom plate of the base plate 4. Further, rubber is adhered to the bottom plate in order to adjust the land non-land and prevent current from flowing between the frame and the soundproof panel unit 1.

The side plate of the base plate 4 is formed with a notch 4b into which the punching metal 7 described later is inserted, and the back plate of the base plate 4 is formed with a folded piece 4c on which the punching metal 7 described later is placed. Further, the plate thickness of the base plate 4 can be 4.5 mm to 9 mm.

(Presser metal fittings)
The presser foot 5 is a rectangular steel plate with a thickness of about 12 mm that fits inside the base plate 4, and the area around the anchor where stress is concentrated is separated from the panel material (fixed panel 2 and intermediate panel 3). It is a member provided for this purpose. In this way, by making the pressing metal fitting 5 a separate member from the panel material, the panel material is made thin and the weight of the soundproof panel unit 1 as a whole is reduced. Further, the plate thickness of the presser fitting 5 can be 9 mm to 16 mm.

(Kasagi)
Kasagi 6 is a Kasagi made by bending a 2.3 mm thick highly corrosion-resistant plated steel plate into a U-shaped cross section. Have. As shown in FIG. 3, the soundproof panel unit 1 is installed by Kasagi 6 so that the upper ends of the fixed panels 2 and 2'and the intermediate panel 3 are aligned and the outer surface of the bridge is flush with each other.
Further, the plate thickness of the Kasagi 6 can be 1.6 mm to 2.3 mm.

(Soundproof material)
Next, as the soundproofing material which is an optional member of the soundproofing panel unit 1, the punching metal 7 and the sound absorbing material attached to the punching metal 7 will be described. In the first place, the above-mentioned soundproof panel unit 1 constitutes a single-layer sound insulation wall that insulates sound by increasing the transmission loss due to the weight of the steel plate alone even without the sound absorbing material. However, in the soundproof panel unit 1 according to the present embodiment, in order to enhance the soundproof effect and improve the sound environment after installation, the punching metal 7 can be fitted and a sound absorbing material can be added therein. It is a thing.

FIG. 4 is an inner front view showing a state in which the punching metal 7 is attached to the soundproof panel unit 1, FIG. 5 is a plan view thereof, and FIG. 6 is a sectional view taken along the line AA. 7A and 7B are views showing only the punching metal 7 mounted on the soundproof panel unit, where FIG. 7A is a front view, FIG. 7B is a plan view, and FIG. 7C is a side view.

As shown in FIG. 7A, the punching metal 7 has a large number of holes formed in a rectangular weather-resistant plated steel plate having a thickness of about 0.6 mm or a steel plate in which a resin is sandwiched between two steel plates. As shown in (b) and (c), the edges of the four sides are folded back to secure a space for mounting a sound absorbing material having a thickness of about 25 mm.

As the sound absorbing material, a foamed resin such as polyurethane foam foam or a fiber material such as glass wool is preferably used, and any material that absorbs sound by diffusely reflecting and attenuating the noise that has passed through the holes of the punching metal 7 is appropriately used. It is a thing.

The punching metal 7 is attached to the fixed panels 2, 2'and the intermediate panel 3, respectively, as shown in FIGS. 4 and 5, with a sound absorbing material (not shown) attached. As shown in FIG. 6, the punching metal 7 is fixed by inserting the punching metal 7 into the notch 4b of the base plate 4 described above, placing it on the folded piece 4c, and then fixing it with an L-shaped angle 70. Has been done. Reference numeral 71 is a rivet interference portion notch 71 for preventing rivet interference, which will be described later. Further, only the punching metal 7 or the steel plate may be attached as the sound insulating material. Further, both a sound absorbing material and a sound insulating material may be attached. As described above, it can be installed by various measures of soundproofing material such as sound absorbing material only, sound insulating material only, and adding sound absorbing material and sound insulating material.

Next, the arrangement of the fixed panel 2 and the intermediate panel 3 of the soundproof panel unit according to the present invention will be described with reference to FIGS. 8 and 9. FIG. 8 is a schematic diagram showing a combination of a fixed panel and an intermediate panel of the soundproof panel unit, and FIG. 9 is a schematic diagram showing another embodiment of the combination of the soundproof panel unit.

As described above, the fixed panel 2 is a panel that is fixedly supported by the structural frame, and the intermediate panel 3 is a panel that is fixedly supported by being joined to the fixed panel 2. Therefore, as shown in FIG. 8A, the basic form is that, of the three steel soundproof panels, both outer sides are fixed to the structural frame, and the intermediate panel 3 is in the middle.

However, as shown in FIG. 8B, the soundproof panel unit may be composed of four steel soundproof panels, and the middle two may be the above-mentioned intermediate panel 3. This is because the fixing panels 2 at both ends are fixedly supported to the structural frame, and one of the intermediate panels 3 can be fixed by the fixing panel 2 and integrated by the Kasagi 6.

Further, as shown in FIG. 8C, the soundproof panel unit is composed of five steel soundproof panels, of which both ends are fixed panels 2 and the fixed panel 2 is arranged in the center between them. It may be an intermediate panel 3. In short, the soundproof panel unit according to the present invention may have a structure in which the fixed panel 2 is fixedly supported by the structural frame and at least one side of the intermediate panel 3 is connected and supported by the fixed panel 2.

Assuming that the fixed panel 2 and the intermediate panel 3 of the soundproof panel unit 1 shown in FIG. 9A are arranged in a straight line at equal intervals with the same width, the soundproof panel unit is the end of the construction range of the soundproof wall. Then, as shown in FIG. 9B, the length can be adjusted by the width of the intermediate panel 3. In this case, since the fixed panel 2 has exactly the same configuration, the production line of the fixed panel 2 can be used as it is. Further, the intermediate panel can also be manufactured only by adjusting the width of the intermediate panel 3 (cut down in the illustrated form) to the intermediate panel 3'. Moreover, since it is a steel panel, cutting and welding for trimming are much easier than with FRP panels.

Further, even when the soundproof panel unit is installed in the curved surface portion as shown in FIG. 9 (c) or in the corner portion (right angle portion) as shown in FIG. 9 (d), the intermediate panel 3 ”or the intermediate panel It is possible to deal with various cases only by using the intermediate panel of 3 ^{# as} an accessory. Therefore, in the soundproof panel unit according to the present invention, it is easy to manufacture the end scale portion and the special portion.

<Joining fixed panel and intermediate panel>
Next, a method of joining the fixed panel 2 and the intermediate panel 3 will be described with reference to FIGS. 10 to 12. FIG. 10 is a perspective view showing attachment / detachment of the intermediate panel 3 of the soundproof panel unit 1. Further, FIG. 11 is an enlarged perspective view showing the fall prevention rib of the intermediate panel 3 of the soundproof panel unit 1, and FIG. 12 is an enlarged perspective view showing a cross section of the rivet joint between the panels of the soundproof panel unit. Is.

As shown in FIG. 10, the intermediate panel 3 is fitted between the fixed panel 2 and the fixed panel 2', and is riveted with rivets RB as shown in FIG. Of course, the joining of the intermediate panel 3 and the fixing panels 2 and 2'is not limited to the rivet joining, and may be joined by other dry joining such as bolt joining of bolts and nuts or clip fixing. In short, it does not have to be a joint that takes time to separate later in a wet joint such as welding.

Further, as shown in FIG. 11, the tip of the vertical ribs 31 and 32 of the intermediate panel 3 are formed with the fall prevention ribs 31a and 32a that are further folded back to the outside of the panel main body 30. Then, the fall prevention ribs 31a and 32a are brought into contact with the folding piece 22a of the vertical rib 22 of the fixed panel 2 and the folding piece 21a of the vertical rib 21 of the fixed panel 2', and the fall prevention ribs 31a and 32a are brought into contact with each other. The folded pieces 21a and 22a are riveted together with rivets RB.

Therefore, even if the rivet RB comes off, the intermediate panel 3 is hooked by the folding pieces 21a and 22a of the fixing panels 2 and 2'at the fall prevention ribs 31a and 32a, and is intermediate to the outside of the bridge. It is possible to prevent an accident in which the panel 3 falls off. Further, this can be said not only at the time of construction of the soundproof panel unit 1 but also at the time of repair such as replacing or repairing a part of the soundproof panel unit 1.

As described above, the soundproof panel unit 1 according to the present embodiment is composed of two types of panels, a fixed panel 2, 2'and an intermediate panel 3, and the joining of these panels is a dry joining such as rivet joining. Each is separably joined. Therefore, it is easy to manufacture the end length portion and the special portion only by changing the width and shape of the steel intermediate panel 3. Moreover, according to the soundproof panel unit 1 according to the present embodiment, since it is a steel soundproof panel, it is lighter than a concrete soundproof panel, is easy to install, and has a problem of surface peeling. Does not occur.

<Construction method of soundproof panel unit>
Next, the construction method of the soundproof panel unit according to the embodiment of the present invention will be described in detail with reference to FIGS. 13 to 16. The case where the above-mentioned soundproof panel unit 1 is installed on the ground covering C1 of a bridge, which is a structural frame made of reinforced concrete, will be described as an example.

FIG. 13 is a process explanatory view showing a unit carry-in / installation process of the construction method of the soundproof panel unit according to the embodiment of the present invention. As shown in FIG. 13, in the method of constructing the soundproof panel unit according to the present embodiment, first, the above-mentioned soundproof panel unit 1 is carried onto the ground cover C1 and is previously embedded in the ground cover C1 to be erected. Perform the unit carry-in installation process by inserting it into the bolt AB and installing it.

Specifically, as shown in FIG. 13, in the soundproof panel unit 1, the above-mentioned fixed panels 2 and 2'and the intermediate panel 3 are joined by rivets RB in advance at a factory or the like, and the cap tree 6 and the base plate 4 and the like are welded together. Join them with rivets, etc. and integrate them. Then, using a wire rope L or the like, the soundproof panel unit 1 integrated by a lifting machine such as a crane is lifted, the anchor bolt AB is inserted into the anchor hole 4a of the base plate 4, and the soundproof panel unit 1 is installed on the ground cover C1. ..

Of course, it goes without saying that the fixed panels 2 and 2'and the intermediate panel 3 may be manually brought in separately and assembled on site without using a lifting machine such as a crane. However, if a lifting machine such as a crane can be installed, it is preferable because the work efficiency is improved.

FIG. 14 is a process explanatory view showing a presser fitting mounting process of the construction method of the soundproof panel unit according to the present embodiment. As shown in FIG. 14, in the method of constructing the soundproof panel unit according to the present embodiment, next, the presser foot metal fitting mounting step of mounting the above-mentioned presser foot metal fitting 5 on the soundproof panel unit 1 installed in the previous step and bolting the presser metal fittings 5 to the soundproof panel unit 1 (See also FIG. 15).

Specifically, as shown in FIG. 14, the holding metal fitting 5 is placed on the base plate 4 of the soundproof panel unit 1 installed in the previous process, the nut is tightened with an impact wrench or the like, and the holding metal fitting is attached to the anchor bolt AB. The soundproof panel unit 1 is fixed to the ground cover C1 via the 5 (see also FIG. 15).

FIG. 15 is a process explanatory view showing a bolt fastening process and a unit carry-in / installation process of the next unit in the method of constructing the soundproof panel unit according to the present embodiment. As shown in FIG. 15, in the construction method of the soundproof panel unit according to the present embodiment, next, the next soundproof panel unit 1 is inserted into the anchor bolt AB next to the soundproof panel unit 1 fixed to the ground cover C1 and installed. Carry in and install the unit.

After that, each of the above-mentioned unit loading / installing process, presser fitting mounting process, and bolt fastening process is repeated, and the soundproof panel unit 1 is constructed one after another. In this way, the soundproof panel unit 1 is installed one after another in the construction section, and the already installed soundproof panel unit 1 and the remaining end length portion of the construction section are actually measured on-site, and the length of the actually measured end length portion is measured. Based on this, a soundproof panel unit 1'with only the width of the intermediate panel 3 changed is installed in the end length portion. Then, as shown in FIG. 16, the construction of the soundproof panel unit, that is, the construction of the soundproof wall is completed. FIG. 16 is a perspective view showing a state in which the construction method of the soundproof panel unit according to the present embodiment is completed and the soundproof wall is completed.

As described above, according to the construction method of the soundproof panel unit according to the present embodiment, the soundproof panel unit 1'can be installed after actually measuring the end length portion on site, so that the construction is easy and the installation can be performed in a short time. Is possible, and the installation cost can be reduced. In comparison, conventional FRP soundproof panels usually require a mold, and manufacture and construct special parts such as end scales, corners, curved surfaces, and slopes that cannot be accommodated by a normal unit. However, it was extremely difficult, and the special part was later made into a custom-made steel panel or concrete panel. Therefore, it is uneconomical in terms of cost and the construction period is long.

<Repair method for soundproof walls>
Next, the method of repairing the soundproof wall according to the embodiment of the present invention will be briefly described with reference to FIGS. 10, 12, and 16.

When a part of the soundproof wall is damaged due to an accident such as deterioration over time, ballast flying from a railroad track, or a vehicle collision from the state of the soundproof wall in which the soundproof panel units 1 are arranged side by side as shown in FIG. There is. In such a case, in the soundproof wall repair method according to the present embodiment, since the soundproof panel unit 1 is a steel soundproof panel, the repair is extremely easy. For example, if the ballast hits the ballast, it can be easily restored by hitting it with a hammer or the like, and the repair work can be completed simply by applying a rust preventive coating. However, with the conventional FRP soundproof panel, on-site repair work is almost impossible, and it is uneconomical because it is necessary to replace all one unit of the soundproof wall in the vicinity of the damaged part.

Further, even in the case of severe damage that cannot be repaired on site, as described above, the soundproof panel unit 1 is a dry type in which the fixing panel 2 and the intermediate panel 3 are joined as shown in FIG. Since it is joined by rivet joining or the like, it is easy to separate the fixed panel 2 and the intermediate panel 3. Therefore, for example, when only the intermediate panel 3 is damaged, as shown in FIG. 10, the rivet RB and the cap tree 6 shown in FIG. 12 can be cut and the intermediate panel 3 can be easily removed.

Even if the fixed panel 2 is damaged, the fixed panel 2 can be removed by releasing the connection between the intermediate panel 3 and the fixed panel 2 and releasing the connection between the adjacent fixed panels 2 and 2'. You can also. At this time, the rivet RB and the cap tree 6 can also be cut on the bridge. Therefore, it is not necessary to install scaffolding for repair, which is extremely economical.

Further, as described above, the fall prevention ribs 31a and 32a are brought into contact with the folding piece 22a of the vertical rib 22 of the fixed panel 2 and the folding piece 21a of the vertical rib 21 of the fixed panel 2'to prevent the falling. The ribs 31a and 32a and the folded pieces 21a and 22a are riveted with rivets RB. Therefore, it is possible to surely prevent the intermediate panel 3 from falling off to the outside of the bridge during repair.

As described above, according to the method for repairing the soundproof wall according to the present embodiment, when a part of the soundproof panel unit 1 is damaged, the repair is only required to replace the panel of the part, and the maintenance is easy and the damage is caused. Repair can be done in a short time and at low cost.

The soundproof panel unit, the method of constructing the soundproof panel unit, and the method of repairing the soundproof wall according to the embodiment of the present invention have been described in detail above. It is just an example of conversion. Therefore, the technical scope of the present invention should not be construed in a limited manner by the above-described embodiment and the illustrated embodiment.

In particular, although the concrete ground cover has been illustrated as an example of the structural frame, it is needless to say that it can be applied not only to concrete structures but also to steel bridges. In short, the present invention can be applied as long as it is a structural frame to which the soundproof panel unit can be fixed by an anchor or the like.

1,1': Soundproof panel unit 2,2': Fixed panel 20: Panel body 21 and 22: Vertical ribs 21a, 22a, 22a': Folded piece 23: Filler 3,3': Intermediate panel 30: Panel body 31 , 32: Vertical rib 31a, 32a: Fall prevention rib RB: Rivet 4: Base plate 4a: Anchor hole 4b: Notch 4c: Folded piece 40: Level meter body 5: Presser fitting 6: Kasagi 7: Punching metal (sound insulation material)
70: L-shaped angle 71: Notch in rivet interference part C1: Ground cover (structural frame)
AB: Anchor bolt

Claims (9)

It is a soundproof panel unit in which a plurality of steel soundproof panels having vertical ribs folded at both ends are joined.
The steel soundproof panel includes a fixed panel fixedly supported by the structural skeleton via a base plate fastened by anchor bolts provided on the structural skeleton, and an intermediate panel having at least one side end connected to the fixed panel. It consists of two types of panels,
The fixed panels and the fixed panel and the intermediate panel are dry-bonded to each other .
The intermediate panel is a soundproof panel unit characterized in that it is not fixed to the base plate. The soundproof panel unit according to claim 1, wherein at least a pair of the fixed panels are provided on the left and right sides, and at least one intermediate panel is provided between the pair of the fixed panels. The soundproof panel unit according to claim 1 or 2, wherein the vertical ribs are formed so that the width becomes smaller toward the upper side. The vertical rib is folded back toward the noise source side of the structural frame, and is also
The soundproof panel according to any one of claims 1 to 3, wherein a fall-prevention rib folded back toward the panel adjacent to the intermediate panel is formed at the tip of the vertical rib of the intermediate panel. unit. The claim is characterized in that a base plate fastened by anchor bolts provided on the structural frame is provided as a separate member from the fixing panel, and the base plate is detachably joined to the vertical ribs of the fixing panel. The soundproof panel unit according to any one of 1 to 4. The soundproof panel unit according to claim 5, wherein the base plate is fastened to the anchor bolts via a holding metal fitting which is a member different from the base plate. The soundproof panel unit according to any one of claims 1 to 6, wherein the fixed panel and the intermediate panel are configured so that a soundproof material can be attached to the panel portion. A method for constructing a soundproof panel unit in which the soundproof panel unit according to any one of claims 1 to 7 is installed in the structural frame.
The soundproof panel units are installed one after another in the construction section, and the already installed soundproof panel unit and the remaining end length portion of the construction section are measured on-site and based on the length of the actually measured end length portion. A method for constructing a soundproof panel unit, which comprises changing only the width of the intermediate panel and installing the soundproof panel unit on the end length portion. A method for repairing a soundproof wall provided with the soundproof panel unit according to any one of claims 1 to 7.
A soundproof wall characterized in that only the damaged steel soundproof panel is replaced by removing the dry joint between the steel soundproof panels while the steel soundproof panel excluding the damaged steel soundproof panel is erected. Repair method.

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