JPH11280029A - Panel and mounting method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panel having high construction property of mounting work and a sound absorbing member itself having a simple and inexpensive structure and facilitating the mounting work. SOLUTION: Members for mounting 102, 103 are provided at the center of both right and left end parts on a top face of a rectangular plane type sound absorbing panel 101. The member for mounting 103 is rotatably and temporarily fixed. After the member for mounting 102 is engaged with an H steel 201, the member for mounting 103 is rotated to engage it with H steel 202. Then, bolt holes 112 to 114 are tightened in the H steels 201, 202 by tightening bolts to fix them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a sound absorbing panel on a lower surface of an elevated road structure, etc.
And its mounting method.

[0002]

2. Description of the Related Art There is known a technology for reducing noise by making a lower surface of an elevated road or the like sound absorbing.
NIKKEI CONSTRUCTION 1997.12.12 p.66-71). This technology is for suppressing the generation of noise when a road is located below an elevated road, in which the traveling sound of vehicles on the elevated road is reflected on the lower surface of the elevated road.

[0003] An elevated road such as an expressway may have a total extension distance of several tens of kilometers or more. Therefore, the above technologies include (1) a simple structure, high reliability, and low cost. (Part 2) Construction is as simple as possible. Is required.

Generally, to make the lower surface of an elevated road sound absorbing, a sound absorbing member such as a sound absorbing panel is attached to the lower surface of the elevated road. In order to attach the sound absorbing member to the lower surface of the elevated road, it is common to attach the sound absorbing member with bolts to beams made of H-shaped steel installed at predetermined intervals below the elevated road. The sound absorbing member has dimensions and weight that can be handled by humans,
Mounting a large number of sound absorbing members with bolts on the underside of an elevated road can be a tedious task.

[0005] For example, an operation in which an operator adjusts the position of a bolt hole while supporting a sound absorbing member from below, and manually presses the sound absorbing member from below so that the sound absorbing member does not move when tightening a bolt is performed at a high place. This is an operation, and such an operation must be performed for each sound absorbing member one by one, resulting in extremely low workability. When the sound absorbing member is attached with a bolt from below, the bolt may be loosened by vibration and the bolt may fall.

Techniques for solving such a problem include:
Conventionally, for example, the one described in JP-A-9-165722 is known. This publication describes that in a structure in which a sound absorbing member is attached to a lower surface of a viaduct, a rotating member is provided at an end of the sound absorbing member, and the sound absorbing cylinder is rotated to rotate the sound absorbing cylinder on the lower surface of the elevated road. This is a technique for fixing to beams.

In the technique described in this publication, the sound absorbing member is pressed down to a predetermined position from below, and in this state, the rotating member is rotated outward from the sound absorbing member, and the outwardly projecting portion is used. The sound absorbing member and a part of the beam are engaged so that the sound absorbing member does not fall from the lower surface of the elevated road.

[0008]

In recent years, communication lines such as optical fiber cables have been provided inside elevated roads such as expressways, and spaces for maintenance have been provided in the elevated roads. . In such a structure, the space between the upper surface of the sound absorbing member attached to the lower surface of the elevated road and the lower surface of the elevated road is required to be the floor of the maintenance space.

This makes the sound absorbing member also function as a floor of the maintenance space, and (1) simplifies the structure of the elevated road, and reduces parts costs and construction costs. (2) Make the maintenance space as large as possible in a limited volume. This is to satisfy such requirements. (3) A structure is obtained in which the fixed portion is loosened due to vibration and the sound absorbing member, its constituent members, parts for attaching the sound absorbing member, and the like do not drop. In order for the sound absorbing member to function as a floor of a maintenance space, it is required that humans can walk around and work thereon, and have durability enough to withstand the weight of equipment and materials required for maintenance.

In the technique described in Japanese Patent Application Laid-Open No. 9-165722, the sound absorbing member has a structure supported by a rotating member. Therefore, when the sound absorbing member functions as a floor of a maintenance space, there is a problem in durability. Occurs.
This is the weight of the sound absorbing member when functioning as a floor,
This is because the total weight of the weight of the person, the weight of the equipment and materials for maintenance, and the weight of the material becomes a structure supported by the rotating member.

In the technique described in Japanese Patent Application Laid-Open No. 9-165722, when the sound absorbing member is engaged with the beam below the elevated road by the rotating member, the sound absorbing member is caught by the beam. It is necessary to fix the sound absorbing member to the beam with a special spring. Such a structure is not preferable in terms of an increase in the number of parts, complicated work, and reduced reliability.

An object of the present invention is to provide a configuration which solves the problems of the prior art as described above. That is,
The sound absorbing member arranged on the underside of the elevated road: (1) High workability. (2) The structure of the sound absorbing member itself is as simple as possible. (3) There is high reliability when the sound absorbing member functions as a floor of a maintenance space provided in an elevated road. It is an object of the present invention to provide a mounting structure and a mounting method of a sound absorbing panel which can obtain such effects.

[0013]

In order to solve the above-mentioned problems, a panel according to the present invention is a panel attached to a beam fixed to a structure, and an upper surface of the panel has:
A mounting member for engaging at least two of the beams, one of the mounting members being rotatable to engage the beam, a bolt hole for bolting a panel to the beam,
The gist is that it is provided.

According to a second aspect of the present invention, there is provided a panel attached to a beam fixed to a structure, wherein the panel is fixed to the beam on its upper surface with bolts, and both ends of the upper surface of the panel. The gist of the present invention is to provide at least two attachment members each having an engagement projection that overlaps with a part of the beam.

A panel mounting method according to a third aspect of the present invention is a method of mounting a panel on a beam fixed to a structure, wherein at least two mounting members provided at both ends of an upper surface of the panel. In a state where one of them is rotated, the attaching member is engaged with a part of a beam, and the panel is suspended between at least two beams. The gist of the present invention is to include a step of adjusting the mounting position by moving the panel and a step of fixing the panel to the beam.

In the third aspect of the present invention, the engagement between the mounting member and the beam may be released by fixing the panel to the beam with bolts from above.

[0017]

FIG. 1 shows an example of an embodiment of the present invention. FIG. 1 shows a sound absorbing member 101 having a rectangular flat plate-shaped sound absorbing member, and a sound absorbing panel mounting member 1 mounted at the center of both left and right ends of the upper surface of the sound absorbing panel 101.
02 and 103 are shown.

The sound absorbing panel 101 has a rectangular metal box 110, the lower surface 109 of which is a punching metal having a large number of sound absorbing holes, and the inside thereof is filled with glass wool. Sound absorbing panel 101 shown here
Has dimensions of, for example, 2000 mm × 650 mm ×
It is 100 mm and weighs 27 kg.

What is important in the structure shown in FIG. 1 is the mounting members 102 and 10 mounted on the sound absorbing panel 101.
3. The attachment members 102 and 103 have shapes as shown in FIG. In the drawing, reference numeral 206 denotes an auxiliary engagement hole, reference numeral 207 denotes an engagement projection, and reference numeral 208 denotes a mounting portion. The mounting portion is provided with mounting holes 104 and 105 and the like. The state shown in FIG. 1 shows a state before mounting the sound absorbing panel. In the state shown in FIG. 1, one mounting member 102 is
And 105 are fixed to the sound absorbing panel 101 by riveting or bolting.

The other mounting member 103 is temporarily fixed to the sound absorbing panel 101 in a state where bolts are loosened only at the mounting holes 106. In this state, the mounting member 103 is
06 is rotatable around the axis.

Further, holes for loosening bolts are provided in a portion 108 of the sound absorbing panel 101, and the bolts can be tightened by aligning the mounting holes 105 of the mounting member 103 with the holes 108. It has a structure. The sound absorbing panel 101 has 112, 11
Holes for bolting indicated by 3, 114, 115 are provided. A nut is welded to the other side of each bolt mounting hole so that the bolt can be screwed.

The procedure for attaching the sound absorbing panel 101 to the underside of an elevated road will be described below. First, a sound absorbing panel in the state of FIG. 1 is prepared. In this state, the mounting member 103 is rotated inward by about 90 ° with respect to the mounting member 102.

Then, as shown by reference numeral 205 in FIG. 2A, a portion of the H-shaped steel 201 fixed to the lower surface 300 of the elevated road is engaged with the mounting member 102 which is fixed to the sound absorbing panel 101 in advance. The part 207 is engaged. Further, the rotatable mounting member 103 is rotated while the position of the sound absorbing panel 101 is held horizontally, and the lower surface 3 is rotated.
The mounting member 103 is engaged with a part of the other H-shaped steel 202 fixed at 00.

Then, holes 105 and 1 for bolt attachment are provided.
08, and is bolted to the mounting member 103 to fix the mounting member 103 to the sound absorbing panel 101. Also, tighten the bolt at the portion 106 shown loosely. The construction so far can be performed by two workers, one person below the sound absorbing panel and one person above the sound absorbing panel.

In the state shown in FIG.
01, the mounting member 102 is engaged, and further, the H-shaped steel 202 is engaged with the mounting member 103. In this state, the sound absorbing panel 101 is fixed to the two H-shaped steels 201 and 202 by the mounting members 102 and 103.
It is in a state of hanging.

In this state, the mounting members 102, 1
Since 03 is only hooked on a part of the H-shaped steel, the sound absorbing panel 101 can be moved in the longitudinal direction of the H-shaped steels 201 and 202.

In this state, the sound absorbing panel 1
01 is secured with sufficient strength for a person to walk on. Naturally, the upper surface side 11 of the sound absorbing panel 101
0 is required to have sufficient strength to function as a floor.

In a general construction, first, a plurality of sound absorbing panels are temporarily fixed as shown in FIG. Thereafter, while finely adjusting the positions of the sound absorbing panels one by one, bolt holes (bolt holes for directly tightening bolts into the H-section steel) of each panel as shown by 112 to 114 in FIG.
, And the sound absorbing panel is fixed to the H-section steel with bolts. By performing the bolting, the sound-absorbing panel 101 has two H-shaped steels 201 and 20.
It is finally stopped at 2. This bolting can be easily performed by one worker. This is because the sound absorbing panel 101 has already been temporarily fixed by the mounting members 102 and 103.

FIG. 2B shows an enlarged view of the fixing portion of the sound absorbing panel 101 to the H-shaped steels 201 and 202 after the permanent fastening. As shown in FIG. 2 (B), when the fixing bolts 203 and 204 are tightened,
The mounting members 102 and 103 rise relatively to the H-shaped steels 201 and 202 from the temporarily fixed state in FIG. However, the two are only separated from each other in the vertical direction, and the overlapping state is maintained. Therefore, when the fixing bolts 203 and 204 are loosened, the fittings are again engaged with the H-shaped steel. Therefore, even if the bolts for final fixing are removed, the sound absorbing panel is temporarily fixed by being hooked on the H-shaped steel by the mounting member, so that danger at the time of replacing the sound absorbing panel can be largely prevented. Further, even if the bolt is loosened due to vibration or the like, since the mounting member is engaged with the H-shaped steel, the sound absorbing panel can be held by the H-shaped steel.

In the structure shown in FIG. 2B, the sound absorbing panel can be firmly processed with bolts for H-section steel. This can increase the reliability of the sound absorbing panel as a floor. By passing a wire through the engagement auxiliary hole 206 shown in FIG. 2 (B) and further fixing the wire to a member on the elevated road side, it is possible to prevent the sound absorbing panel from being dropped in case of an accident.

Although an example in which a flat sound-absorbing panel is used has been described above, the back side (the inside of the elevated road) functions as a floor, and the front side (exposed surface) has a camo-shaped or appropriate shape. A sound absorbing panel having an uneven shape can also be used. Further, the present invention can be used not only when the sound absorbing panel is mounted horizontally but also when the sound absorbing panel is mounted slightly obliquely. Further, two or more mounting members may be provided at one end of the sound absorbing panel, and a rubber member for vibration absorption or the like may be adhered to one longitudinal side surface of the sound absorbing panel.
It is effective for absorbing vibration on elevated roads.

[0032]

As described above, according to the present invention, in a structure in which a sound absorbing panel is mounted on the lower surface of an elevated road, (1) high workability can be obtained. (2) The structure of the sound absorbing member itself can be made as simple as possible, and the cost can be reduced. (3) High reliability can be obtained when the sound absorbing member functions as a floor of a maintenance space provided in an elevated road. Such an effect can be obtained. (4) Since the bolt for mounting the sound absorbing member can be configured to be mounted from above, it is possible to prevent the bolt from dropping due to vibration. Further, it is possible to realize a structure in which the sound absorbing member does not drop even if the bolt comes off. Further, in the above description, an example in which the sound absorbing member is disposed on the lower surface of the elevated road has been described. However, the present invention can also be used for fixing various panels to the lower surface of other structures.

[Brief description of the drawings]

FIG. 1 is a view showing the appearance of one embodiment of a sound absorbing panel of the present invention.

FIG. 2 is a view showing a state of attachment of the sound absorbing panel of the present invention.

FIG. 3 is a view showing a mounting member for mounting the sound absorbing panel of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 101 Sound absorption panel 102,103 Mounting member 104,105 Riveted or bolted part 106 Loosely bolted part 107 Direction of rotation of mounting member 103 108 Bolt mounting hole 109 Lower surface of sound absorbing panel 110 Sound absorbing panel Upper surface 112,113 Hole for bolt installation 201,202 H-section steel 203,204 Nut 206 Hole for passing wire

Claims (4)

[Claims] Claims: 1. A panel mounted on a beam fixed to a structure, comprising, on an upper surface of the panel, a mounting member for engaging at least two of the beams, one of which is rotated. A panel comprising: a mounting member engageable with a beam; and a bolt hole for bolting the panel to the beam. 2. A panel attached to a beam fixed to a structure, said panel being bolted to a beam at an upper surface thereof, and a part of said beam being provided at both ends of an upper surface of the panel. And a panel provided with at least two attachment members having an engagement projection overlapping therewith. 3. A method of mounting a panel on a beam fixed to a structure, wherein one of at least two mounting members provided at both ends of an upper surface of the panel is rotated. Engaging the mounting member with a portion of the beam,
A step of suspending the panel between the beams, a step of moving the panel in an extending direction of the beam, and adjusting a mounting position, and a step of fixing the panel to the beam. How to mount the panel. 4. The method according to claim 3, wherein the panel is fixed to the beam with bolts from above.
A method for mounting a panel, wherein an engagement state between a mounting member and a beam is released.