Fabricated single-slope type bridge anti-collision guardrail

An anti-collision guardrail and assembled technology, which is applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of poor energy absorption and buffering effect, general guidance, large impact force, etc.

Active Publication Date: 2021-05-28
CENT SOUTH UNIV
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rigid guardrails are widely used in traditional bridge structures, and single-slope concrete guardrails are one of the main representatives. However, this kind of guardrail is strong enough, but its guiding performance is average, and its energy absorption and buffering effect is poor.
And because of its high rigidity, there is almost no deformation in the collision with the vehicle. When the speed of the vehicle is too high or the collision angle is too large, a large impact force will be generated, which poses a great threat to the safety of the occupants. The additional bending moment also brings damage to the bridge structure
In addition, because the concrete rigid guardrail is mostly formed by integral pouring on the bridge cantilever, there is great inconvenience in later maintenance and replacement

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
  • Fabricated single-slope type bridge anti-collision guardrail
  • Fabricated single-slope type bridge anti-collision guardrail
  • Fabricated single-slope type bridge anti-collision guardrail

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] Such as Figure 1 to Figure 3 As shown, the prefabricated single-slope bridge anti-collision guardrail of this embodiment is installed on the cantilever edge 1 provided on the edge of the bridge road surface, and includes a buffer block 2 and at least one guardrail segment 3 arranged longitudinally along the bridge. The guardrail segment 3 The side facing the road surface of the bridge is provided with a buffer groove 31 along the longitudinal direction of the bridge, that is, the buffer groove 31 opens toward the collision surface inside the bridge, covering most of the area where the two contact when the vehicle hits the guardrail. The buffer block 2 is embedded in the In the buffer tank 31, and can move relative to the buffer tank 31 along the bridge longitudinal direction.

[0026] Since the buffer block 2 and the guardrail segment 3 are fit together, the overall strength of the bridge guardrail is reduced very little, ensuring its blocking effect. And the sliding ...

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 assembly type single-slope bridge anti-collision guardrail which is installed on a cantilever edge arranged on the edge of a bridge road surface and comprises a buffer block and at least one guardrail profile arranged in the longitudinal direction of a bridge, and a buffer groove formed in the longitudinal direction of the bridge is formed in the side face, facing the bridge road surface, of the guardrail profile. The buffer block is embedded in the buffer groove and can move relative to the buffer groove in the longitudinal direction of the bridge. The assembled single-slope type bridge anti-collision guardrail has the advantages of being simple, practical, high in guidance quality, good in buffering and energy absorbing effect, high in protection performance on passengers and a bridge and the like.

Description

technical field [0001] The invention relates to the technical field of guardrail structures, in particular to an assembled single-slope bridge anti-collision guardrail. Background technique [0002] In recent years, accidents of vehicles colliding with guardrails have occurred frequently, and the scientific anti-collision design of guardrails has attracted more and more attention. Rigid guardrails are widely used in traditional bridge structures, and single-slope concrete guardrails are one of the main representatives. However, this kind of guardrail is strong enough, but its guiding ability is average, and its energy absorption and buffering effect is poor. And because of its high rigidity, there is almost no deformation in the collision with the vehicle. When the speed of the vehicle is too high or the collision angle is too large, a large impact force will be generated, which poses a great threat to the safety of the occupants. The additional bending moment also brings d...

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): E01D19/10E01F15/08E01F15/00
CPCE01D19/103E01F15/083E01F15/00
Inventor 宋旭明潘鹏宇程丽娟荣亚威唐冕
Owner CENT SOUTH UNIV
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