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

Ultra-high-performance concrete lattice reinforcement structure and method thereof for reinforcing masonry arch bridge

An ultra-high-performance, structural reinforcement technology, applied in arch bridges, bridge reinforcement, bridges, etc., to achieve the effect of improving overall stiffness, reducing loads, ensuring feasibility and construction efficiency

Inactive Publication Date: 2018-08-28
SHANXI PROVINCIAL RES INST OF COMM
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an ultra-high-performance concrete lattice reinforcement structure and a method for reinforcing masonry arch bridges, which are used to solve the limitations and defects existing in existing masonry arch bridge reinforcement methods

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
  • Ultra-high-performance concrete lattice reinforcement structure and method thereof for reinforcing masonry arch bridge
  • Ultra-high-performance concrete lattice reinforcement structure and method thereof for reinforcing masonry arch bridge
  • Ultra-high-performance concrete lattice reinforcement structure and method thereof for reinforcing masonry arch bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The ultra-high-performance concrete provided in this embodiment has excellent mechanical properties, the compressive strength is generally higher than 150MPa, the tensile strength is 8MPa, high toughness, and good durability, so that the ultra-high-performance concrete structure can still be used in overloaded environments or earthquakes. It has more excellent structural reliability. Moreover, the ultra-high performance concrete provided by this embodiment can greatly increase the service life of the structure and reduce the maintenance cost of the structure. The self-weight of the ultra-high performance concrete structure is about 1 / 3 to 1 / 2 of the traditional concrete structure, which significantly reduces the dead load effect. Therefore, the ultra-high performance concrete lattice reinforcement structure provided in this embodiment can effectively improve the reinforcement effect of masonry arch bridges.

[0041] figure 1 It is a schematic structural diagram of an ...

Embodiment 2

[0048] This embodiment provides a construction method for reinforcing masonry arch bridges using the ultra-high performance concrete lattice reinforcement structure provided in Embodiment 1. For a specific description of the ultra-high performance concrete lattice reinforcement structure, please refer to Embodiment 1, which is not mentioned here Let me repeat.

[0049] The construction method for reinforcing the masonry arch bridge provided by this embodiment includes: using the anchor shotcrete method and / or partial repair method to repair the original main arch ring for the first time; demolishing the arch building above the original main arch ring; removing all Describe the loose, peeling surface of the original main arch ring; wash and clean the original main arch ring; set a shear connector and a steel mesh on the original main arch ring, and the shear connector is a planting bar or an anchor rod; According to the balanced and symmetrical pouring method, the vertical and ...

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
Widthaaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses an ultra-high-performance concrete lattice reinforcement structure and a method thereof for reinforcing a masonry arch bridge. The reinforcement structure comprises primary main arch rings, shear-resistant connectors and ultra-high-performance concrete longitudinal and transverse reinforcement strips. The original main arch rings are provided with the shear-resistant connectors, so that the ultra-high-performance concrete longitudinal and transverse reinforcement strips are integrated with the original main arch rings. The defects of low material strength, low bonding strength, poor durability and the like of ordinary concrete are compensated, so that reinforcement layers and the original main arch rings form an integrated part to jointly bear stress, and the application status of deviation between a reinforcement design calculation theory and the actual stress state is improved. The consumption amount of reinforcing materials is small, loads of the original main arch rings are reduced, and meanwhile ultra-high-performance concrete reinforcement layers share more live load effects. The long-term use performance and durability of a bridge are improved, the situations of cracking, damage, water seepage and other damage of concrete at the junctions of the reinforcement layers and the original main arch rings are avoided, and the lifetime cost of reinforcement of the masonry arch bridge is reduced.

Description

technical field [0001] The invention relates to the technical field of bridge reinforcement, in particular to an ultra-high-performance concrete lattice reinforcement structure and a method for reinforcing a masonry arch bridge. Background technique [0002] Most of the existing masonry arch bridges were built earlier, with lower load levels, and most of them have become dangerous old bridges. The existing masonry arch bridge reinforcement methods have certain limitations and defects. For example, the reinforced concrete composite arch ring reinforcement method increases the burden on components, and takes a long time for pouring and maintenance; the outsourcing steel plate reinforcement method consumes a large amount of steel and costs a lot. , poor corrosion resistance and fire resistance; changing the structural system method, the construction components have limitations for bridges with clearance requirements; the method of pasting carbon fiber cloth is poor in fire resi...

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): E01D22/00E01D4/00
CPCE01D22/00E01D4/00
Inventor 吴焱韩之江吴佳佳寇伟赵雷王琪王磊刘志华汪永强
Owner SHANXI PROVINCIAL RES INST OF COMM
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