High-speed railway bridge wind blocking structure

A technology for high-speed railways and bridges, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of wind-shielding structure height, opening ratio, wind-shielding effect columns and connection safety that cannot meet the operation requirements of high-speed railways, and achieve Good durability, strong applicability, and convenient maintenance

Active Publication Date: 2015-03-04
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-speed railway trains are fast, have light axle loads, and have much greater aerodynamic force than normal-speed railway trains. Crosswind effects

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
  • High-speed railway bridge wind blocking structure
  • High-speed railway bridge wind blocking structure
  • High-speed railway bridge wind blocking structure

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043] The present invention will be described in detail below in conjunction with specific embodiments.

[0044] The present invention proposes a brand-new bridge windshield structure form. Under the premise of meeting the safety of the bridge structure and the windshield structure, by setting the windshield structure to change the crosswind effect on the car body, the safe operation of the train is improved. The critical wind speed increases the stability of train operations and reduces operational failures, thereby providing a favorable guarantee for trains to pass safely on bridges in wind areas.

[0045] The involved high-speed railway bridge windshield structure is suitable for box girder and combined T-beam bridge structures. It is installed on the windward side of the bridge girder and includes a column 1, a bent column 2 and a wind deflector 5.

[0046] The upright column 1 and the bent upright column 2 are both H-shaped steel (sections are divided into three types: H250×250...

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

No PUM Login to view more

Abstract

The invention relates to a high-speed railway bridge wind blocking structure. An existing common-speed railway bridge wind prevention measure cannot meet the wind prevention requirement of a strong wind area high-speed railway bridge. The high-speed railway bridge wind blocking structure comprises vertical columns, a bent vertical column and a wind blocking plate, the vertical columns and the bent vertical column are vertically and fixedly spliced, the upper portion of the bent vertical column is vertical, the lower portion of the bent vertical column is bent towards a central line of a bridge body, the vertical portion of the upper portion of the bent vertical column is fixed at a flange of the bridge body, the bottom end is fixed to a box beam web or T-shaped beam horseshoe, the wind blocking plate is fixed between the longitudinally adjacent vertical columns, and a wind blocking plate hole is formed in the wind blocking plate. Safety of a bridge structure and the wind blocking structure is met, cross air acting on a train body is changed by the wind blocking structure, the critical wind speed of train safety operation is improved, train operation stability is improved, and operation faults are decreased.

Description

technical field [0001] The invention belongs to the technical field of high-speed railway wind protection, and in particular relates to a high-speed railway bridge wind protection structure. Background technique [0002] my country's Xinjiang railway wind area has high wind speed, long wind season, strong seasonality, and fast change speed. The sudden strong wind is very destructive. Among them, the hundred-mile wind area and the thirty-mile wind area are one of the most severe railway wind disasters in my country and even in the world. Over the years, there have been many accidents in which trains were blown over by strong winds, which brought huge economic losses and serious social impacts to railway transportation and production. [0003] Existing studies are mostly conducted on low-speed vehicles, and there are relatively few studies on medium and high-speed trains. There are existing windproof measures for normal-speed railway bridges, which adopt a separate bridge t...

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): E01D19/00E01D19/10
CPCE01D19/00E01F7/025
Inventor 赵会东何涛徐永利吴少海张鹏俞萍王昌鹏
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap