Unlock instant, AI-driven research and patent intelligence for your innovation.

I-steel combined bridge structure for rail transit with accessory structure

A rail transit and bridge structure technology, applied in the direction of bridges, bridge parts, bridge materials, etc., can solve the problems of inconvenient construction and maintenance, unreliable force, poor durability, etc., to achieve convenient construction, convenient construction and maintenance, and spanning ability strong effect

Pending Publication Date: 2020-01-03
BEIJING GENERAL MUNICIPAL ENG DESIGN & RES INST
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an I-steel composite bridge structure for rail transit with an auxiliary structure, the purpose of which is to solve the problems of high cost, bulky body, inconvenient construction and maintenance, unreliable force bearing and poor durability of the existing U-shaped steel-concrete composite beams. question

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
  • I-steel combined bridge structure for rail transit with accessory structure
  • I-steel combined bridge structure for rail transit with accessory structure
  • I-steel combined bridge structure for rail transit with accessory structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] In a light rail project, the elevated section is about 9km long, and the length of the standard section in the section is about 6.9km. The beams of the standard section of the interval adopt I-beam composite bridges, with spans of 25m, 30m, and 32m, beam heights of 1.8m, and bridge deck widths of 9.4m. The standard beam is prefabricated in separate boxes in the prefabricated beam field. It is a double-box double-chamber cross-section. The width of a single beam is 4.15m. The top plate of the single-piece I-shaped steel plate beam is 0.4m wide and 20mm thick; the bottom plate is 0.7m wide and 32mm thick; the web is 1.398m high and 14mm thick; the I-shaped steel plate beam is provided with a horizontal connection every 4m-6m, and the thickness is 14mm. The thickness of the cantilever end of the bridge deck is 200mm, the thickness of the root is 350mm, and the thickness of the wet joint is 200mm.

[0066] The prefabricated column has a hollow rectangular section with a se...

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 discloses an I-steel combined bridge structure for rail transit with an accessory structure. The I-steel combined bridge structure comprises a bridge pier, a steel plate beam, a shear connecting piece, a lateral association, two reinforced concrete bridge deck plates arranged side by side on a bridge, the bottom of the reinforced concrete bridge panels are fixedly supported through aplurality of vertical steel plate beams, the bottom of the steel plate beam is fixed on the bridge pier, the steel plate beam is an I-shaped broken surface, the steel plate beam comprises steel platebeam top plates and steel plate beam bottom plates which are upper and lower parallel and vertical steel plate beam web plates which are mutually connected and fixed, the steel plate beam web platesare connected and fixed through a transversely arranged transverse contact, the side surfaces of the steel plate beam web plates are welded to vertical stiffening ribs I, and the steel plate beam topplates are fixedly connected with the reinforced concrete bridge panels through the shear connecting piece; and longitudinal baffles are symmetrically arranged on the upper surfaces of the reinforcedconcrete bridge panels on the two sides of the bridge, and longitudinal evacuation platforms are arranged in the middle of the two adjacent reinforced concrete bridge panels. The I-steel combined bridge structure has the advantages of high bearing capacity, simple structure, light weight, economy, construction and maintenance convenience.

Description

technical field [0001] The invention belongs to the technical field of urban rail transit elevated bridges, in particular to an I-beam composite bridge structure for rail transit with auxiliary structures. Background technique [0002] The existing rail transit composite beams are mainly U-shaped steel-concrete composite beams. This beam type has the characteristics of concrete compression, steel beam tension, strong spanning capacity, high bearing capacity, prefabrication, and overall transportation. Large and heavy, the overall hoisting is inconvenient, and the box-shaped closed section greatly increases the difficulty of later maintenance. [0003] The heavy weight of auxiliary structures is one of the main problems of track bridges at present. The slab and the evacuation platform are the main auxiliary components of the track bridge. The conventional slab is mainly a reinforced concrete component, and its own weight increases the upper load of the main beam and increase...

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): E01D2/02E01D19/00E01D19/12E01D19/10E01D101/30E01D101/26
CPCE01D2/02E01D19/00E01D19/103E01D19/125E01D2101/26E01D2101/30
Inventor 李盼到许欣刘一平马利君聂长文胡松松张哲南陈功徐艳玲彭博阳
Owner BEIJING GENERAL MUNICIPAL ENG DESIGN & RES INST
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com