CN204703079U - A kind of sound barrier - Google Patents

Abstract

The utility model discloses a sound barrier, which comprises a column, a sound-insulating board and an arc-shaped board. The column is I-shaped and connected to the foundation through anchor bolts. Both sides of the sound-insulating board are inserted into the column. The sound-insulating board The panel is a sandwich structure, the exterior is an ultra-high toughness concrete panel, and the middle is a layer of porous sound-absorbing material. The arc-shaped panel is located on the top and is connected to the column through embedded bolts. Adopting the technical scheme of the utility model, it not only has excellent sound insulation and noise reduction effects, but also has excellent durability, and solves the problems of corrosion and rust of steel plates and inconvenience caused by panel collision damage.

Description

a sound barrier

technical field

The utility model relates to the technical field of civil engineering, in particular to a sound barrier.

Background technique

The sound barrier is a sound insulation facility. In order to block the direct sound between the sound source and the receiver, a facility is inserted between the sound source and the receiver, so that the sound wave propagation has a significant additional attenuation, thereby weakening the receiver. Noise impact in the area. Sound barriers are mainly used outdoors. With the increasing noise pollution of road traffic, some countries have adopted various forms of barriers to reduce traffic noise. The disassembly and movement of the sound barrier is relatively convenient, and it has a certain sound insulation effect, so it is widely used.

At present, most of the sound barriers used in urban highway elevated roads are steel plates and sound-absorbing cotton. However, the steel plates have the problem of rust and corrosion during long-term use, and the glass plates of the barriers are often damaged and need to be replaced frequently. Operation and maintenance pose great difficulties.

Utility model content

The purpose of this utility model is to propose a sound barrier, which not only has excellent sound insulation and noise reduction effects, but also has excellent durability, and solves the problems of corrosion and rust of steel plates and inconvenience caused by panel collision damage.

For this purpose, the utility model adopts the following technical solutions:

A sound barrier, including a column, a sound insulation board and an arc plate, the column is I-shaped, connected to the foundation through anchor bolts, the two sides of the sound insulation board are inserted into the column, and the sound insulation board is a sandwich structure , the exterior is an ultra-high toughness concrete panel, the middle is a layer of porous sound-absorbing material, the arc-shaped plate is located on the top, and is connected to the column through embedded bolts.

The column is an ultra-high toughness concrete column.

The thickness of the ultra-high toughness concrete panel outside the sound insulation board is 1 cm to 2 cm, and the thickness of the porous sound-absorbing material layer in the middle of the sound insulation board is 4 cm to 8 cm.

The porous sound-absorbing material layer includes foam concrete, light soil mixed with air bubbles, sound-absorbing cotton and/or glass wool.

The thickness of the curved plate is 2 cm.

The curved panel is an ultra-high toughness concrete panel or an acrylic panel.

Adopting the technical solution of the utility model, first, the durability is good, and the ultra-high toughness concrete is ultra-high performance concrete, which has excellent durability and no rust problem; second, the sound insulation effect is good, with both reflection effect and sound-absorbing material, The sound insulation and noise reduction can reach more than 40 decibels; the third is that this scheme adopts thin-walled and lightweight structure, and its own weight is light. Compared with the previous heavy concrete noise screen, the load is greatly reduced, and it can be used in urban viaducts, expressways, etc.

Description of drawings

Fig. 1 is a schematic structural diagram of a sound barrier in a specific embodiment of the present invention.

Detailed ways

Fig. 1 is a schematic structural diagram of a sound barrier in a specific embodiment of the present invention. As shown in FIG. 1 , the sound barrier includes a column 1 , a sound insulation board 2 and a curved board 3 .

Among them, the column is I-shaped, which is a Super Toughness Concrete (STC) column, and the design slope can be made in the direction of the bridge and along the bridge according to the needs. The compressive strength of the super-high toughness concrete is above 110MPa. The folding strength is above 18MPa.

The column is connected to the foundation 4 through anchor bolts.

Columns are inserted on both sides of the sound insulation board. The sound insulation board is a sandwich structure. The outside is an ultra-high toughness concrete panel, and the middle is a porous sound-absorbing material layer. The thickness of the porous sound-absorbing material layer is 4 cm to 8 cm, and the porous sound-absorbing material layer includes foam concrete, light soil mixed with air bubbles, sound-absorbing cotton and/or glass wool.

The curved plate is located on the top and is connected to the column by embedded bolts. The thickness of the curved plate is 2 cm. The curved plate is an ultra-high toughness concrete panel or acrylic plate, which can prevent sound wave diffraction and increase the sound insulation effect.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, any person familiar with the technology can easily think of it within the technical scope disclosed in the utility model Changes or replacements should fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (5)

1. A sound barrier, characterized in that it includes a column, a sound insulation board and an arc plate, the column is I-shaped, connected to the foundation through anchor bolts, the two sides of the sound insulation board are inserted into the column, the The sound insulation board is a sandwich structure, the exterior is an ultra-high toughness concrete panel, and the middle is a layer of porous sound-absorbing material. The arc-shaped board is located on the top and is connected to the column through embedded bolts. 2. A sound barrier according to claim 1, characterized in that, the column is an ultra-high toughness concrete column. 3. A sound barrier according to claim 1, characterized in that, the thickness of the ultra-high toughness concrete panel outside the sound insulation board is 1 cm to 2 cm, and the thickness of the porous sound-absorbing material layer in the middle of the sound insulation board 4 cm to 8 cm. 4. A sound barrier according to claim 1, characterized in that the thickness of the arc-shaped plate is 2 cm. 5. A sound barrier according to claim 4, characterized in that, the arc-shaped panels are ultra-high toughness concrete panels or acrylic panels.