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

Assembly type prestressed highway tunnel crash barrier

A technology for anti-collision guardrails and road tunnels, which is applied in the direction of roads, roads, road safety devices, etc., and can solve problems such as difficult replacement, poor durability of seams, dislocation of the top surface of guardrail assembly, etc., to achieve easy replacement, good protection, and reduce The effect of casualties and economic losses

Inactive Publication Date: 2019-09-20
SHENYANG JIANZHU UNIVERSITY
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing guardrail prefabricated assembly method also has problems such as misalignment of the top surface of the guardrail assembly, poor durability of the seams, and difficulty in 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
  • Assembly type prestressed highway tunnel crash barrier
  • Assembly type prestressed highway tunnel crash barrier
  • Assembly type prestressed highway tunnel crash barrier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] Embodiment: An assembled prestressed highway tunnel anti-collision barrier, including highway foundation 1, anti-collision barrier 2, anti-collision roller 3, prestressed rigging 4, bottom sleeve 5, connecting bolt 6, roller fixing part 7, Concrete pouring belt 8, expansion bolt 9;

[0035] The anti-collision guardrail 2 is composed of a prefabricated guardrail main body 2-1, a horizontally stressed steel bar 2-2, a vertically stressed steel bar 2-3, a transversely stressed shear steel bar 2-4, a bottom mounting tenon 2-5, an outer Stretching steel cage 2-6, drum installation platform 2-7, cableway 2-8 consists of eight parts;

[0036] The prefabricated guardrail main body 2-1 is internally arranged with horizontally stressed steel bars 2-2, vertically stressed steel bars 2-3 and transversely stressed shear steel bars 2-4; At the bottom, the horizontal stress reinforcement 2-2 and the vertical stress reinforcement 2-3 are installed at the bottom with tenons 2-5 to form...

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 provides an assembly type prestressed highway tunnel crash barrier and belongs to the technical field of highway tunnel safety protection. Transverse and longitudinal stressed steel bars and crash barrier shear reinforcements are arranged in the crash barrier and extend out of the bottom of a crash barrier body to form an external extension reinforcement cage. When the crash barrier is connected with a highway foundation, the reinforcement cage reserved at the bottom end of the crash barrier is inserted into a pouring groove reserved in the highway foundation and then high-strength concrete is poured. Bottom sleeves are mounted at the junction between the crash barrier and the highway foundation, and the bottom sleeves, the crash barrier and the highway foundation are connected together through connecting bolts. Prestressed riggings are arranged in the crash barrier. Anti-collision rollers are arranged on the right surface of the crash barrier. The assembly type prestressed highway tunnel crash barrier has the beneficial effects that the assembly type prestressed highway tunnel crash barrier is good in anti-collision performance, good in stress performance, convenient to mount, easy to replace and quick and convenient to install; when a vehicle collides with the surface of the crash barrier, the anti-collision rollers on the outer surface of the crash barrier and the prestressed riggings arranged in the crash barrier body are combined to bear force to achieve the good buffering effect on the collided vehicle.

Description

technical field [0001] The invention belongs to the technical field of road tunnel safety protection, in particular to an assembled prestressed road tunnel anti-collision guardrail. Background technique [0002] At present, tunnel anti-collision guardrails mainly include concrete guardrails, steel guardrails and combined guardrails, among which concrete guardrails and combined guardrails are mainly constructed by on-site pouring. Using the traditional prefabricated guardrail assembly technology, it is easy to cause the height and horizontal direction of the guardrail to be wrong during the assembly process, so the effect is not ideal, and the appearance of the guardrail is uneven; moreover, there is a long-term flooding phenomenon at the splicing position of the guardrail and the main beam, which greatly Reduced structural durability. Moreover, whether it is cast-in-place guardrails or conventional prefabricated assembled guardrails, the technology currently used is relativ...

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): E01F15/08
CPCE01F15/08E01F15/083E01F15/088
Inventor 张延年朱鑫泉
Owner SHENYANG JIANZHU UNIVERSITY
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