Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 that the performance of the metal sound-absorbing panels decreases over time and the gaps between the panels are too large, the noise reduction effect of the existing fully enclosed sound barriers is not ideal, and it cannot adapt to the curved shape well.
[0006] Fourth, the cost of transparent sound insulation panels is high, the sound insulation performance is poor, and its fire resistance is poor, flammable, and cases of fire and combustion of sound barriers often occur, causing major economic losses

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Experimental program
Comparison scheme
Effect test

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Widthaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com