Steel framework and modified ECC concrete slab composite fully-enclosed sound barrier

A technology of concrete slabs and steel skeletons is applied in noise absorption devices, climate change adaptation, construction, etc., and can solve problems such as economic losses, unsatisfactory noise reduction effects, and inability to better adapt to curved shapes.

Pending Publication Date: 2019-02-01
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] First, the service life of metal sound-absorbing panels and transparent sound-insulating panels is only 15 to 20 years, which is seriously inconsistent with the design service life of the main structure of 100 years
[0004] Second, the cost of transparent panels is high, and the cost of metal sound-absorbing panels is also high. If you consider the number of times of maintenance and replacement during the entire 100-year service life, the cost will be even higher
[0005] Third, due to the fact th

Method used

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  • Steel framework and modified ECC concrete slab composite fully-enclosed sound barrier
  • Steel framework and modified ECC concrete slab composite fully-enclosed sound barrier
  • Steel framework and modified ECC concrete slab composite fully-enclosed sound barrier

Examples

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Example Embodiment

[0028] Embodiment: As shown in the figure, a fully enclosed sound barrier structure composed of a steel skeleton and a modified ECC concrete slab includes ring-shaped beams 1 spanning above the railway 4 and arranged at intervals along the longitudinal direction of the railway. The two sides of the railway 4 are provided with footnote embedded parts 5 , and the two ends of the beam 1 and the footnote embedded parts 5 are fixed by high-strength bolts 10 . A longitudinal beam 3 is arranged between the two adjacent beams 1, and an X-shaped support beam 9 is arranged in the unit cell formed by the cross beam 1 and the longitudinal beam 3, and the cross beam 1, the longitudinal beam 3 and the X-shaped support beam 9 Together they form a force-bearing skeleton. A cover plate 2 matching the radian of the outer surface of the beam 1 is provided on the force-bearing frame.

[0029] Wherein, the crossbeam 1 is spliced ​​by a plurality of I-beams along the length direction, and the part...

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Abstract

The invention discloses a steel framework and modified ECC concrete slab composite fully-enclosed sound barrier. The steel framework and modified ECC concrete slab composite fully-enclosed sound barrier is characterized by comprising annular cross beams stretching across a railway line and arranged in the longitudinal direction of the railway line in a spaced manner; longitudinal beams are arranged between the two adjacent cross beams; cover plates matched with the external surfaces of the cross beams in radian are arranged between the external surfaces of the two adjacent cross beams; the widths of the cover plates in the transverse direction of the railway line are 1-3 m; the thicknesses of the cover plates in the transverse direction of the railway line are 3-8 cm; and the cover platesare preformed by using a high tenacity fibre reinforced cement composite. The steel framework and modified ECC concrete slab composite fully-enclosed sound barrier has the characteristics of good sound insulation effect, good durability, good fire resistance, good aerodynamic performance and good economic efficiency.

Description

technical field [0001] The invention relates to a sound insulation barrier for railways, in particular to a fully enclosed sound barrier structure composed of a steel skeleton and a modified ECC concrete plate. Background technique [0002] Nowadays, there is no fully enclosed sound barrier on the railway, but the fully enclosed sound barrier in the field of highway, municipal and urban rail transit mostly adopts the structural form of "rectangular steel structure skeleton + metal sound-absorbing panel + transparent sound-insulating panel". Has the following defects: [0003] First, the service life of metal sound-absorbing panels and transparent sound-insulating panels is only 15 to 20 years, which is seriously inconsistent with the designed service life of the main structure of 100 years. [0004] Second, the cost of transparent panels is high, and the cost of metal sound-absorbing panels is also high. If the number of times of maintenance and replacement during the entir...

Claims

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Application Information

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IPC IPC(8): E01F8/00
CPCE01F8/0005Y02A30/30
Inventor 刘振标曾敏文望青严爱国王伟民马广陈正驰康小英周柳雯妮蔡德强马明史娣印涛
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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