JPH09177029A - Steel-made wall handrail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent rainwater, etc., penetrated from a sound absorbing hole from being stayed in the inner part by providing a drainage gutter in the lower part between a steel-made front plate raised on the front side with a floor system fixing plate between and having a plurality of sound absorbing holes penetrating to inner and outer surfaces and a steel-made rear plate raised on the rear side. SOLUTION: A drainage gutter 17 is provided in the lower part between a steel-made front plate 7 raised on the front side with a floor system fixing plate 6 between and having a plurality of sound absorbing holes 15 penetrating to the inner and outer surfaces and a steel-made rear plate 8 raised on the rear side. Thus, rainwater penetrated between the front plate 7 and the rear plate 8 through the sound absorbing holes 15 of the front plate 7 is drained from the water guide part 18 of the drainage butter 17 to the outside through a drain pipe 20. Thus, the rainwater penetrated from the sound absorbing holes can be prevented from being stayed in the inner part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel wall balustrade installed on a bridge, particularly a road bridge such as an elevated road, and capable of absorbing noise generated by running of a vehicle.

[0002]

2. Description of the Related Art Road bridges are installed on road bridges to prevent vehicles such as automobiles from jumping out of the road.
2. Description of the Related Art A noise barrier is installed to prevent noise generated by running of a vehicle from leaking out of a road.

The source of noise due to the running of a vehicle is mainly the friction noise between pavement and tires. In addition to the noise of the car engine and the noise of cutting off the wind of the vehicle body, the noise is generated 50 meters above the road surface.
It is recognized as being at a low position of about cm (magazine "Road" September 1995, p. 31).

[0004] However, most of the soundproofing walls are installed on wall balustrades installed to prevent vehicle departure. Since the wall railing is usually made of concrete, the sound insulation effect can be sufficiently recognized, but there is no sound absorption effect,
The emitted noise is repeatedly reflected on the left and right walls. In order to prevent the noise from leaking out of the road, a high soundproof wall is installed or a curved surface is forcibly applied to the soundproof wall.

However, as described above, since the source of noise due to the running of the vehicle is at a low position, it is very preferable to be able to absorb the noise at that position.

As a method of absorbing the noise caused by the running of the vehicle at a low position, it is conceivable to first install a soundproofing wall in front of the height of the wall. In this method, the width of the road is increased by the thickness of the soundproofing wall. And it is not realistic, causing a huge increase in construction costs.

Therefore, the present inventor has previously described in Japanese Patent Application No.
In No. 8557, between a steel front plate provided with a plurality of sound absorbing holes penetrating the inner and outer surfaces raised to the front side with a floor slab fixed plate interposed therebetween and a steel rear plate raised to the rear side. A steel wall with a steel wall incorporating soundproofing material and a floor slab fixing plate sandwiched between the steel wall railing and the floor slab fixing plate. Tire bearings and running water section below the front of the steel wall consisting of a front panel and a steel rear panel fitted with a soundproofing material with irregularities on the surface that raises and reflects sound at an angle on the inner surface. A steel wall balustrade characterized by comprising a steel drain gutter comprising:

[0008] The noise at the low position generated by the running of the vehicle is absorbed by the sound-absorbing holes of the front panel, is absorbed by the soundproofing material, and is blocked by the noise. Leakage on the road is reduced. In addition, it is economical because it is not necessary to install a sound barrier on the railing as in the past, and furthermore, since the sound barrier is not installed inside the railing, the road width is effectively used. be able to. In addition, the dead load on the floor slab can be reduced because the rail is hollow and sandwiches the floor slab fixing plate.

[0009]

However, since the steel wall balustrade is provided with a sound absorbing hole in the front plate, rainwater or the like penetrates through the hole, and the rainwater stays inside. In addition, when a vehicle collides, the front plate is made of steel, so it is rigid, and there is a gap between the front plate and the rear plate. The present invention seeks to solve these problems by providing a steel wall railing as described below.

[0010]

First, a steel front plate having a plurality of sound-absorbing holes penetrating through the inner and outer surfaces rising to the front side with a floor slab fixing plate interposed therebetween, and a rear side. In addition, a soundproofing material was incorporated between the steel plate and the steel rear panel, and a drain gutter was formed as a steel wall rail comprising a steel wall disposed below the front panel and the rear panel.

[0011] Next, a steel front plate provided with a plurality of sound absorbing holes penetrating the inner and outer surfaces raised to the front side sandwiching the floor slab fixing plate, and a steel rear plate raised to the rear side. A steel wall comprising a U-shaped reinforcing member with a longitudinal direction supporting the inner surface of the front plate and both ends attached to the inner surface of the rear plate via a damper member. The column was taken.

The soundproofing is provided between the front plate provided with a plurality of sound absorbing holes penetrating the inner and outer surfaces raised to the front side sandwiching the floor slab fixing plate and the steel rear plate raised to the rear side. In addition, the longitudinal direction supports the inner surface of the front plate, and both ends are attached to the inner surface of the rear plate via damper members, and the drain gutter is installed on the front plate and the rear plate. A steel wall railing consisting of steel walls arranged below and between them.

Further, a steel wall rail having a steel drainage groove including a tire bearing portion and a running water portion is provided below the front surface.

Further, in the steel wall section as described above, the soundproofing material is provided with a sound absorbing hole provided on the inner surface of the front plate, and the rear plate is provided with irregularities for reflecting sound at an angle to the inner surface. Was formed on the surface and attached to the steel wall railing.

Still further, in the steel wall railing in which the above-mentioned drainage grooves are arranged, the steel wall railing has a drainage hole formed from a drainage gutter to the outside or a flowing portion of the steel drainage groove.

[0016]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a state in which a steel wall rail according to the present invention is installed, FIG. 2 is an exploded longitudinal sectional view of the steel wall rail, and FIG. 3 is a longitudinal section of the steel wall. FIG. 4 is a partial perspective view, FIG. 5 is a horizontal cross-sectional view illustrating the configuration of a reinforcing member provided inside the steel wall, and FIG. 6 is a longitudinal section of a main part showing a mounting portion of the reinforcing member. FIG.

The steel wall rail 1 has a steel wall 2 and a steel drain 3
Consists of

The steel wall 2 comprises a floor slab fixing plate 6, a front plate 7, a rear plate 8, and a top plate 10, and each part is formed as follows.

The rear plate 8 has an appropriate length in the direction of road travel, and has a soundproofing material 11 attached to the inner surface of the rear plate 8 with an adhesive. It is fixed to the rear side by welding or the like. Reference numeral 19 denotes a front receiving plate for facilitating the startup by attaching a front plate 7 described later to the front surface of the floor slab fixing plate 6 and is fixed to the front side of the floor slab fixing plate 6 by welding or the like. 9 is a reinforcing plate.

The front plate 7 has an appropriate length in the direction of road travel, has a soundproofing material 14 attached to an inner surface thereof, and is provided with a plurality of sound absorbing holes 15 and 16 penetrating the inner and outer surfaces. 1
Reference numeral 0 denotes a top plate that closes up when it rises to the front of the floor slab fixing plate 6.

The soundproof material 11 has a surface 12 on which unevenness is formed. The unevenness is caused by the sound
The sound absorbed from the sound absorption holes 16 of the
3 is reflected. Note that the soundproofing material is not separately attached to the rear plate 8 and the front plate 7 as the soundproofing materials 11 and 14, but the rear plate 8 can be set up with the floor slab fixing plate 6 interposed therebetween.
And it only needs to be installed between the front plate 7 and
For example, the space may be filled only between the rear plate 8 and the front plate 7 or may be merely attached to the rear plate 8. The soundproofing material is preferably a resin foam because of its excellent sound absorbing or insulating effect. For example, urethane foam can be used.

A drain gutter 17 is arranged below the rear plate 8 and the front plate 7. The drain gutter 17 is held on the inner surface of the rear plate 8 below, for example, where the soundproofing materials 11 and 14 are not attached, and is positioned so as to cover the lower space 27, and rainwater or the like entered by the inclined water guide 18 is provided. However, it has a function of draining water through a drain hole, for example, a drain pipe 20. The drainage from the drainage gutter 17 may be performed from the side by inclining the drainage gutter only in one longitudinal direction without necessarily relying on the drainage hole.

A reinforcing member 21 is provided between the rear plate 8 and the front plate 7 so as to cope with a collision of a vehicle. The reinforcing member 21 is formed of a U-shaped pipe material, a longitudinal portion 22 supports the inner surface of the front plate 7 with the soundproofing material 14 interposed therebetween, and an end of the mounting portion 23 is formed on the inner surface of the rear plate 8. It is attached to and arranged on the rear face plate 8 via the fixed damper member 24.

The steel drain groove 3 is formed by a flowing water portion 28 having a substantially channel shape, a water guiding portion 33, a guard portion 29 having a substantially clan shape, and has a space portion 30. If necessary, a drain hole communicating with a drain hole formed in the front plate 7 of the steel wall is formed on the back side of the flowing water portion 28. In this embodiment, the drainage pipe 20 communicates.

The components thus formed are integrated as follows.

The rear plate 8 in which the floor slab fixing plate 6 and the front receiving plate 19 are integrated is fixed to the floor slab 4 with the floor slab fixing plate 6 using the anchor bolts 25, and the rear plate 8 is fixed to the mounting bolts 26.
Fix the back with. Next, the front plate 7 is connected to the front receiving plate 19.
Then, the back surface of the water flow part 28 of the steel drain groove 3 is overlapped, and these are integrated using the combination bolt 31, and then the guard part 29 of the steel drain groove is assembled to the water flow part 28.

In the case of a steel wall railing in which a steel drainage groove is not integrated, the front wall 7 may be overlaid on the front receiving plate 19 and assembled using a combination bolt to form a steel wall. Further, the steel drainage groove may be one in which the flowing water portion 28 and the guard portion 29 are integrated.

Thus, a steel wall rail according to the present invention is formed.

[0030]

Since the present invention has been made as described above,
It has the following effects.

According to the first to eighth aspects, the low-level noise generated by the running of the vehicle is absorbed by the sound-absorbing hole of the front plate, is absorbed by the soundproofing material, and is shielded, so that the noise leaks out of the road or on the road. Decreases. In addition, it is economical because it is not necessary to install a sound barrier on the railing as in the past, and furthermore, since the sound barrier is not installed inside the railing, the road width is effectively used. be able to. In addition, the dead load on the floor slab can be reduced because the steel wall height has a hollow space between the floor slab fixing plates.

[0032] Claims 1, 3, 4, and 6
In, the rainwater and the like that has entered between the front plate and the rear plate from the sound absorption hole of the front plate is discharged to the outside by a drain gutter arranged below between the front plate and the rear plate. It is possible to prevent rainwater from staying in between.

[0033] Claims 2, 3, 5, 5 and 6
In the above, even if a vehicle collides with the steel wall railing, the reinforcing member attached to the rear plate via the damper member supports the front plate, so that the impact is soft and the damage to the steel wall is reduced. be able to.

In the fourth, fifth and sixth aspects of the present invention, the bolts used to integrate the steel wall can be covered by integrating the steel drainage grooves, thereby deteriorating the aesthetic appearance. Nor.

According to a seventh aspect of the present invention, the low-level noise generated by the running of the vehicle is absorbed through the sound-absorbing holes of the front plate and is absorbed or blocked by the soundproofing material attached to the inner surface of the rear plate, but is not absorbed. The noise is reflected on the soundproofing material attached to the inner surface of the front plate at different angles due to the unevenness formed on the soundproofing material, and this reflection is repeated. Noise can be attenuated by repeating this reflection.

According to the present invention, the rainwater introduced into the drain gutter can be discharged to the steel drain as it is.
It is not necessary to discharge drainage to the road surface.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a state in which a steel wall rail according to the present invention is installed.

FIG. 2 is an exploded vertical cross-sectional view of the steel railing.

FIG. 3 is a longitudinal sectional view of a steel wall.

FIG. 4 is a partial perspective view of a steel wall.

FIG. 5 is a horizontal sectional view illustrating a configuration of a reinforcing member provided inside a steel wall.

FIG. 6 is a vertical sectional view of a main part showing a mounting portion of the reinforcing member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Steel wall rail 2 Steel wall 3 Steel drain groove 4 Floor slab 6 Floor slab fixing plate 7 Front plate 8 Rear plate 9 Reinforcement plate 10 Top plate 11 Soundproof material 13 Space part 14 Soundproof material 15 Sound absorption hole 16 Sound absorption hole 17 Drain gutter 20 Drain pipe 21 Reinforcement member 24 Damper member 28 Flowing part 29 Guard part 30 Space part

Claims (8)

[Claims] 1. A steel front plate having a plurality of sound-absorbing holes penetrating the inner and outer surfaces rising to the front side with a floor slab fixing plate interposed therebetween, and a steel rear plate rising to the rear side. A steel wall balustrade comprising a steel wall with soundproofing material interposed therebetween and a drain gutter disposed below the front panel and the rear panel. 2. A steel front plate having a plurality of sound-absorbing holes penetrating the inner and outer surfaces raised to the front side with a floor slab fixing plate interposed therebetween and a steel rear plate raised to the rear side. A soundproofing material is incorporated in between, and a U-shaped reinforcing member is formed of a steel wall with the longitudinal direction supporting the inner surface of the front plate and both ends attached to the inner surface of the rear plate via a damper member. A steel wall railing. 3. A steel front plate having a plurality of sound-absorbing holes penetrating the inner and outer surfaces raised to the front side with the floor slab fixing plate interposed therebetween and a steel rear plate raised to the rear side. A soundproofing material is incorporated in between, and a U-shaped reinforcing member is installed with the longitudinal direction supporting the inner surface of the front plate, both ends are attached to the inner surface of the rear plate via damper members, and a drain gutter is provided on the front plate. A steel wall railing comprising a steel wall disposed below between the rear wall and the rear panel. 4. A steel front plate having a plurality of sound-absorbing holes penetrating the inner and outer surfaces raised to the front side sandwiching a floor slab fixing plate and a steel rear plate raised to the rear side. It is characterized by including a steel drainage groove consisting of a tire bearing part and a running water part under the front of a steel wall with a drainage gutter installed below the front panel and the rear panel, with a soundproof material incorporated between them. Steel wall railing. 5. A steel front plate having a plurality of sound-absorbing holes penetrating the inner and outer surfaces raised to the front side sandwiching the floor slab fixing plate and a steel rear plate raised to the rear side. A steel wall with a U-shaped reinforcing member installed in the longitudinal direction supporting the inner surface of the front plate, and both ends attached to the inner surface of the rear plate via a damper member while incorporating soundproofing material therebetween. A steel wall balustrade comprising a steel drainage groove including a tire bearing portion and a running water portion below a front surface. 6. A steel front plate provided with a plurality of sound absorbing holes penetrating the inner and outer surfaces raised to the front side with a floor slab fixing plate interposed therebetween, and a steel rear plate raised to the rear side. A soundproofing material is incorporated in between, and a U-shaped reinforcing member is provided with the longitudinal direction supporting the inner surface of the front plate, both ends attached to the inner surface of the rear plate via a damper member, and a drain gutter is provided. A steel wall balustrade comprising a steel drainage groove formed of a tire bearing portion and a running water portion below a front surface of a steel wall disposed below a front plate and a rear plate. 7. The soundproofing material incorporated between the front plate and the rear plate is provided with sound absorbing holes provided on the inner surface of the front plate, and the rear plate has irregularities on the surface to reflect sound at an angle to the inner surface. The steel wall balustrade according to claim 1, wherein the steel wall balustrade is formed and attached. 8. A steel-made steel according to claim 1, wherein a drainage hole is formed from the drainage gutter to the outside or a flowing portion of the steel drainage ditch. Wall railing.