CN212247933U - An arched concrete fully enclosed sound barrier - Google Patents

Abstract

The utility model discloses an arched concrete fully enclosed sound barrier, which comprises an arched sound barrier concrete slab, the bottom of the concrete slab is connected to the foundation, the inner side of the concrete slab is provided with a plurality of arched concrete stiffening ribs, and the concrete stiffening ribs are along a line The directions are arranged at intervals, a plurality of through holes are respectively arranged on both sides of the concrete slab, a light-transmitting sound-insulating board is arranged at the through-hole, and an external sound-absorbing board is arranged on the inner side of the concrete slab below the position of the light-transmitting sound-insulating board. The fully enclosed sound barrier is composed of concrete slabs, concrete stiffeners and light-transmitting sound insulation boards to form a rib structure. The light-transmitting sound insulation boards are used for internal lighting and sound insulation of the fully enclosed sound barrier. The overall rigidity and stability of the concrete slab and the concrete stiffening rib concrete structure are high. High economy, low operation and maintenance costs in the later stage.

Description

An arched concrete fully enclosed sound barrier

technical field

The utility model relates to a sound barrier, in particular to an arched concrete fully enclosed sound barrier.

Background technique

As society pays more and more attention to the environment and requires higher and higher requirements for the environment, when railway lines pass through towns or ecologically sensitive areas, the location of the lines is often restricted. Conventional sound barriers involve non-enclosed vertical structures and metal fully enclosed structures. The former often fails due to the limited sound insulation effect, while the latter is due to the high cost, heavy operation and maintenance workload in the later period, difficult maintenance operations, and high operation and maintenance costs. influences the selection decision. In order to achieve flexible line selection, a fully enclosed sound barrier solution with good sound insulation, relatively economical, and low operation and maintenance costs is urgently needed.

Utility model content

The purpose of this utility model is: aiming at the problems existing in the prior art, to provide a kind of arched concrete fully enclosed sound barrier, to effectively solve the problems of low-cost noise control in towns or ecologically sensitive areas, and basically realize maintenance-free operation in the later stage, which is a good solution for railways. Line selection support.

In order to achieve the above purpose, the technical scheme adopted by the present utility model is:

An arched concrete fully enclosed sound barrier, comprising an arched sound barrier concrete slab, the bottom of the concrete slab is connected to the foundation, the inner side of the concrete slab is provided with a plurality of arched concrete stiffeners, the concrete stiffeners are along a line The concrete slabs are arranged at intervals in the direction of the road, a number of through holes are respectively provided on both sides of the concrete slab, light-transmitting sound-insulating boards are arranged at the through-holes, and external sound-absorbing boards are arranged on the inner side of the concrete slab below the position of the light-transmitting sound-insulating slabs. .

Wherein, the shape of the concrete stiffening rib is adapted to the shape of the concrete slab, and the concrete stiffening rib is transversely continuous.

By adopting the arched concrete fully enclosed sound barrier of the utility model, a rib structure is formed by the concrete slab, the concrete stiffening rib and the light-transmitting sound-insulating board, and the light-transmitting sound-insulating board is used for the fully enclosed sound barrier. Internal lighting and sound insulation of the sound barrier, the external sound-absorbing panels can reduce the noise of the train wheels and rails, thanks to the large overall rigidity and stability of the concrete slab and the concrete stiffening rib concrete structure, the sound barrier structure has outstanding performance. Compared with the existing metal fully enclosed structure, the main structure basically realizes maintenance-free in the whole life cycle, the light-transmitting sound insulation board and the external sound-absorbing board are easy to replace, the construction cost is low, and the whole life cycle The advantage of low cost; the sound barrier has novel structure, high economy, low operation and maintenance cost in the later stage, and has strong sound insulation, wind resistance and aerodynamic performance.

Preferably, the foundation is a foundation or a beam.

Preferably, the foundation inside the concrete slab is used to provide a track structure.

Preferably, the through holes are provided on the concrete slab between adjacent concrete stiffeners.

Preferably, the through hole is a rectangular hole, a circular hole or an oval hole.

Preferably, the concrete slab includes straight line segments on both sides of the line, and arc line segments connected to the top of the straight line segment, and the bottom of the straight line segment is connected to the foundation.

Preferably, the inner surface of the concrete slab other than the externally hung sound-absorbing panel is set as a chiseled surface.

With this structural arrangement, the inner surface of the concrete slab is chiseled and the externally hung sound-absorbing panel is arranged, and the two measures are comprehensively used to reduce the noise reverberation in the enclosed interior space, thereby bringing passengers a better ride experience.

Preferably, the top of the concrete slab is provided with ventilation and pressure relief holes.

Further preferably, the ventilation and pressure relief holes include several and are arranged at intervals along the line direction.

Preferably, the concrete slab includes a plurality of segments, which are arranged in sequence along the line direction, and a fracture is provided between adjacent segments, and the fracture is filled with elastic sound-insulating rubber.

With this structural arrangement, on the premise of meeting the internal space size requirements of train operation and ensuring the mechanical performance of the large-section structure, the sound barrier structure is provided with the transverse fracture to prevent the sound barrier structure from participating in the cooperative stress of the foundation. It can greatly reduce the overall rigidity requirements of the sound barrier structure, and significantly optimize its structural size, thereby reducing the weight of the structure and greatly reducing the project cost.

Further preferably, the ends of the concrete slab on both sides of the fracture are provided with the concrete stiffening ribs.

To sum up, due to the adoption of the above-mentioned technical solutions, the beneficial effects of the present utility model are:

1. The arched concrete fully enclosed sound barrier described in the present invention is composed of the concrete slab, the concrete stiffener and the light-transmitting sound-insulating board to form a rib structure. The closed sound barrier has internal lighting and sound insulation, and the external sound-absorbing panel can reduce the noise of the train wheels and rails. Thanks to the high overall rigidity and stability of the concrete slab and the concrete stiffening rib concrete structure, the sound barrier structure has Outstanding wind resistance, and compared with the existing metal fully enclosed structure, it has a main structure and basically realizes maintenance-free throughout the life cycle, the light-transmitting sound insulation board and the external sound-absorbing board are easy to replace, the construction cost is low, and the life cycle cost is low. Low advantage; the sound barrier has a novel structure, high economy, low operation and maintenance costs in the later stage, and has strong sound insulation, wind resistance and aerodynamic performance;

2. In the arched concrete fully enclosed sound barrier of the present invention, the inner surface of the concrete slab other than the externally hung sound-absorbing panel is set as a roughened surface, the inner surface of the concrete slab is Externally installed sound-absorbing panels, combined with two measures to reduce the noise reverberation in the enclosed interior space, bring passengers a better ride experience;

3. The arched concrete fully enclosed sound barrier described in the present utility model, on the premise that the internal space size requirements of train operation are met and the mechanical performance of the large-section structure is guaranteed, the sound barrier structure is provided with the transverse fractures , to prevent the sound barrier structure from participating in the synergistic force of the foundation, which can greatly reduce the overall stiffness requirement of the sound barrier structure, and significantly optimize its structural size, thereby reducing the weight of the structure and greatly reducing the project cost.

Description of drawings

Fig. 1 is the cross-sectional schematic diagram of the arched concrete fully enclosed sound barrier of the present invention;

Fig. 2 is the cross-sectional schematic diagram of the concrete column in Fig. 1;

Figure 3 is a schematic cross-sectional view of a concrete slab in Figure 1;

4 is a schematic side view of the arched concrete fully enclosed sound barrier of the present invention;

5 is a schematic top view of the arched concrete fully enclosed sound barrier of the present invention;

FIG. 6 is a schematic diagram of the fractured seam.

Icons: 1- Concrete stiffener, 2- Concrete slab, 3- Translucent soundproof board, 4- Ventilation and pressure relief hole, 5- Beam body, 6- External sound-absorbing board, 7- Railway building boundary, 8- Track structure, 9 - Broken seam.

Detailed ways

The present utility model will be described in detail below in conjunction with the accompanying drawings.

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

Example

As shown in Figures 1-6, an arched concrete fully enclosed sound barrier according to the present invention includes an arched sound barrier concrete slab 2 and a concrete stiffening rib 1 adapted to its shape.

The concrete slab 2 includes straight line segments on both sides of the line and an arc line segment connected to the top of the straight line segment. The bottom of the straight line segment is connected to a foundation, which is a foundation or a beam body 5, as shown in Figure 1. As shown in -3, the foundation described in this embodiment is the beam body 5 .

As shown in Figures 4 and 5, the concrete stiffeners 1 include several, each of which is continuous in the transverse direction. The concrete stiffeners 1 are connected to the inner side of the concrete slab 2. The concrete stiffeners 1 Set at intervals along the line direction.

As shown in FIGS. 1 , 3 and 4 , several through holes are respectively provided on both sides of the concrete slab 2 , and the through holes are rectangular holes, circular holes or oval holes. In this embodiment, the through holes are rectangular holes. A light-transmitting sound insulation board 3 is arranged at the through hole. As shown in FIG. 4 , the through hole is arranged on the concrete slab 2 between the adjacent concrete stiffeners 1 .

As shown in FIGS. 1 , 3 and 5 , the top of the concrete slab 2 is provided with ventilation and pressure relief holes 4 , and the ventilation and pressure relief holes 4 include several and are arranged at intervals along the line direction.

As shown in FIGS. 1 and 3 , the inside of the concrete slab 2 below the position of the light-transmitting sound-insulating board 3 is provided with an externally hung sound-absorbing board 6 , and the inner surface of the concrete slab 2 other than the externally-mounted sound-absorbing board 6 is as follows: Chiseled surface.

As shown in FIG. 1 , the beam body 5 on the inner side of the concrete slab 2 is used for setting the rail structure 8 , and the inner side of the concrete slab 2 and the upper side of the beam body 5 have a railway building boundary 7 .

As shown in Figs. 4-6, the concrete slab 2 includes a number of segments, which are arranged in sequence along the line direction. There are slits 9 between adjacent segments, and elastic sound-insulating rubber is filled in the slits 9. The concrete stiffeners 1 are provided on both ends of the concrete slab 2 on both sides of the fracture 9 .

Using the arched concrete fully enclosed sound barrier of the present utility model, a rib structure is formed by the concrete slab 2, the concrete stiffening rib 1 and the light-transmitting sound-insulating board 3, and the light-transmitting sound-insulating board 3 It is used for internal lighting and sound insulation of the fully enclosed sound barrier. The external sound-absorbing panel 6 can reduce the noise of train wheels and rails, thanks to the high overall rigidity and stability of the concrete structure of the concrete slab 2 and the concrete stiffener 1. , The sound barrier structure has outstanding wind resistance and aerodynamic performance, and compared with the existing metal fully enclosed structure, the main structure basically realizes maintenance-free throughout the life cycle, and the light-transmitting sound insulation board 3 and the external sound-absorbing board 6 are easy to The advantages of low replacement, low construction cost, and low life cycle cost; the inner surface of the concrete slab 2 is chiseled and the external sound-absorbing panel 6 is provided, which comprehensively relies on two measures to reduce the noise reverberation in the enclosed interior space, bringing more convenience to passengers. On the premise of meeting the internal space size requirements of train operation and ensuring the mechanical performance of the large-section structure, the sound barrier structure is provided with the transverse fracture 9 to prevent the sound barrier structure from participating in the cooperative stress of the foundation. Therefore, the overall stiffness requirement of the sound barrier structure can be greatly reduced, and its structural size can be significantly optimized, thereby reducing the weight of the structure and greatly reducing the engineering cost; the sound barrier structure is novel, economical, low in later operation and maintenance costs, and has a strong Sound insulation, wind resistance and aerodynamic performance.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (10)

1. The utility model provides a totally closed sound barrier of arch concrete, its characterized in that, includes arch sound barrier concrete slab (2), the bottom of concrete slab (2) is connected in the basis, the inboard of concrete slab (2) is equipped with a plurality of arch concrete stiffening rib (1), concrete stiffening rib (1) is along the road direction interval setting, the both sides of concrete slab (2) are equipped with a plurality of through-holes respectively, through-hole department sets up printing opacity acoustic celotex board (3), below printing opacity acoustic celotex board (3) position concrete slab (2) inboard is equipped with external acoustic baffle (6).

2. Arched concrete hermetically sealed sound barrier according to claim 1, characterized in that the foundation is a foundation or a beam (5).

3. Arched concrete sound barrier according to claim 1, characterized in that the foundation inside the concrete slab (2) is used for the arrangement of a track structure (8).

4. An arch concrete fully enclosed sound barrier according to claim 1, characterized in that said through holes are provided in said concrete slab (2) between adjacent concrete stiffeners (1).

5. The arch-shaped concrete totally enclosed sound barrier of claim 1, wherein said through holes are rectangular holes, circular holes or elliptical holes.

6. Totally enclosed arched concrete sound barrier according to claim 1, characterized in that the concrete slab (2) comprises straight sections on both sides of the line, the bottom of which is connected to the foundation, and an arc section connected to the top of the straight sections.

7. The arch-shaped concrete totally-enclosed sound barrier as claimed in claim 1, wherein the inner surface of the concrete slab (2) except for the external sound absorption plate (6) is a scabbed surface.

8. The arch-shaped concrete totally-enclosed sound barrier as claimed in claim 1, wherein the top of the concrete slab (2) is provided with air-permeable pressure relief holes (4).

9. The arch-shaped concrete totally-enclosed sound barrier according to any one of claims 1 to 8, characterized in that the concrete slab (2) comprises a plurality of segments which are arranged in sequence along the direction of a line, a broken joint (9) is arranged between adjacent segments, and elastic sound insulation rubber is filled in the broken joint (9).

10. The arch-shaped concrete totally enclosed sound barrier according to claim 9, characterized in that the concrete stiffeners (1) are arranged at the ends of the concrete plates (2) on both sides of the broken joint (9).

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