Load shedding sound barrier unit and sound barrier thereof

A sound barrier and sound absorption screen technology, applied in construction, noise absorption devices, etc., can solve problems such as concrete cracking, sound barrier bolt loosening, and safety hazards.

Pending Publication Date: 2022-07-15
CHINA SHIPPING ENVIRONMENT SCI & TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem of serious safety hazards such as bolt loosening and partial concrete cracking in the sound barrier after long-term high wind load, the first aspect of the present invention provides a load-reducing sound barrier unit

Method used

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  • Load shedding sound barrier unit and sound barrier thereof
  • Load shedding sound barrier unit and sound barrier thereof
  • Load shedding sound barrier unit and sound barrier thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like Figure 1-4As shown in the figure, a load shedding sound barrier unit of this embodiment includes a load shedding sound absorbing screen body, and the load shedding sound absorbing screen body includes an upper screen body 2 arranged in sequence from top to bottom along the vertical direction, a load shedding sound absorbing screen body, and a load reducing sound absorbing screen body. Unit structure 3 and lower screen body 4. The load reducing unit structure 3 includes a left screen body 5 , a right screen body 6 and a load reducing structure 7 located between the left screen body 5 and the right screen body 6 . The load reducing structure 7 includes a runner 8 and an outer cylinder 10 . The runner 8 includes a rotating shaft 9 and three impellers 11. The two ends of the rotating shaft 9 are respectively connected with the left screen body 5 and the right screen body 6 of the same height at both ends and can be freely rotated. 11 is evenly arranged on the outer ...

Embodiment 2

[0052] A load shedding sound barrier unit of this embodiment is different from Embodiment 1 in the size of the load shedding unit structure 3 and the material of the sound barrier screen body.

[0053] In this embodiment, the height of the sound barrier unit is 3 meters and the length is 2 meters, and a load reducing unit structure with an outer cylinder diameter of 400 mm and a length of 1.5 meters is used.

[0054] The load shedding sound barrier unit may be a non-metallic sound barrier unit. The upper screen body 2, the lower screen body 4, the left screen body 5 and the right screen body 6 are all composed of a sound absorption panel 14, a sound insulation backboard 15 and an internal sound absorption layer 16, and the overall thickness is 80mm-120mm.

[0055] The sound-absorbing panel 14 adopts a glass fiber reinforced plastic perforated plate, the plate thickness is 3.5 mm, the aperture is 4-5 mm, and the opening rate is about 15%. The sound insulation back plate 15 is ...

Embodiment 3

[0061] like Figure 5 As shown, a load shedding sound barrier according to an embodiment of the present invention includes several load shedding sound barrier units 1 of Embodiment 1 and several H-shaped steel uprights 17 . A plurality of the load shedding sound barrier units 1 are connected to each other through the H-shaped steel uprights 17 to form the load shedding sound barrier. The H-shaped steel uprights 17 are arranged at equal distances from each other. After the H-shaped steel uprights 17 are fixed, the load-reducing sound barrier unit 1 is inserted between the H-shaped steel uprights 17 and placed on the upright support plate 18. to be fixed.

[0062] The height of the load shedding sound barrier should make the sensitive building in the sound shadow area to achieve good insertion loss, or set according to the acoustic design requirements of the noise reduction target of the sensitive building; 17 is a span) is 1.5m ~ 2.5m, and the screen thickness of the load she...

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Abstract

The invention provides a load shedding sound barrier unit and a sound barrier thereof. The load shedding sound absorption screen body comprises at least one load shedding unit structure arranged in the vertical direction, and an upper screen body and a lower screen body which are adjacent to the load shedding unit structure. The load shedding unit structure comprises a left screen body, a right screen body and a load shedding structure located between the left screen body and the right screen body. The load shedding structure comprises a rotating wheel and an outer cylinder. The rotating wheel comprises a rotating shaft and at least three impellers, the two ends of the rotating shaft are connected with the left screen body and the right screen body respectively and can rotate freely, and the impellers are evenly arranged on the rotating shaft in a surrounding mode. The outer cylinder is fixed to the upper screen body and the lower screen body which are adjacent to the outer cylinder, each screen body is provided with an arc-shaped attaching face matched with the outer cylinder, and the gap between the outer end of the impeller and the inner side of the outer cylinder is not larger than 2 mm. The connecting surfaces of the upper and lower adjacent screen bodies are bent arc-shaped binding surfaces; the diameter of the outer cylinder is at least 200 mm, and the outer cylinder is provided with an end air opening and a surface air opening. After wind pressure acts on the two-end tuyeres and the surface tuyeres, the impeller is pushed to rotate around the rotating shaft, the pressure is converted, and the wind load is effectively reduced.

Description

technical field [0001] The invention relates to a load reducing sound barrier unit and a sound barrier thereof, belonging to the technical field of urban traffic noise elimination and reduction. Background technique [0002] With the acceleration of urbanization, public transportation facilities such as urban expressways and rail transit have developed rapidly. While promoting economic development and improving people's living standards, traffic noise pollution has become increasingly prominent. Traffic noise has become the main pollution source of sensitive houses on both sides. Solving the problem of environmental noise pollution is an inevitable requirement for building an ecologically civilized society and building a socialist harmonious society. Building sound barriers is an important technical means to control traffic noise pollution. [0003] The sound barrier is an acoustic baffle that stands between the noise source and the sound receiving point, separating the soun...

Claims

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Application Information

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IPC IPC(8): E01F8/00
CPCE01F8/0017E01F8/0023
Inventor 吕璇骆炳晨褚国红
Owner CHINA SHIPPING ENVIRONMENT SCI & TECH SHANGHAI CO LTD
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