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

Deviation correcting and resetting method for longitudinal deviation of beam bodies of beam bridge

A reset method and offset technology, applied in the direction of bridge, bridge maintenance, bridge reinforcement, etc., can solve the problem of little research on the treatment method, and achieve the effect of simple structure, small thrust, and small construction impact.

Inactive Publication Date: 2014-05-28
武汉中交试验检测加固工程有限责任公司
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the longitudinal deviation of the beam body is rare, and there are few researches on the treatment methods. Therefore, there are no effective correction measures, which makes the correction and reset of the longitudinal deviation of the beam bridge body a blank in the research

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
  • Deviation correcting and resetting method for longitudinal deviation of beam bodies of beam bridge
  • Deviation correcting and resetting method for longitudinal deviation of beam bodies of beam bridge
  • Deviation correcting and resetting method for longitudinal deviation of beam bodies of beam bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The method for rectifying and resetting after the longitudinal deviation of the girder and bridge body of the present invention, the steps are:

[0031] 1) Eliminate the horizontal and longitudinal components of the offset beam:

[0032] Since there may be many factors for the deviation of the beam body, and even some reasons have not been recognized, so the elimination here is just to eliminate as much as possible, not necessarily to eliminate them all. The existing analysis found that the root cause of the longitudinal sliding of the upper structure is that the steel plate on the support is not in a horizontal state, so the elimination method is: weld wedge-shaped steel plates under the steel plates at the bottom of all offset beams in the offset joint, and the bottom of the offset beams The overall lower surface formed by the steel plate and the wedge-shaped steel plate is horizontal, so that the steel plate on the support can be restored to a horizontal state, so as...

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 a deviation correcting and resetting method for longitudinal deviation of beam bodies of a beam bridge. The method comprises the steps that 1) horizontal longitudinal component force on the deviated beam bodies is eliminated; 2) all beam bodies of a deviated unit are temporarily fixed and bound to form a pushed whole, and meanwhile the beam bodies of bridge spans with deviation towards the same side of the deviated unit are temporarily fixed and bound to form a stress whole; 3) jacking devices are arranged at the tops of all piers corresponding to the deviated unit, and the jacking devices jack the corresponding beam bodies; 4) a temporary sliding support is arranged in a clearance formed through jacking in the step 3); 5) a reaction frame and a deviation correcting jack are arranged between the deviated beam body of the span, closest to the stress whole, in the deviated unit and a pier top cover beam, the deviated beam body of the span is pushed through the deviation correcting jack, and then the whole deviated unit is pushed; 6) after deviation correction is carried out on the deviated unit in place, finally the deviated beam bodies are rehabilitated. The force transmission problem of large deviation correcting force is solved, meanwhile, deviation correcting thrust is reduced exponentially, construction is convenient, the construction period is short, and cost is low.

Description

technical field [0001] The invention relates to beam bridge maintenance technology, in particular to a method for rectifying and resetting after the longitudinal deviation of a beam bridge body, and belongs to the technical field of bridge maintenance and reinforcement construction. Background technique [0002] Among the existing bridge structures, there are girder bridges, arch bridges, cable-stayed bridges, suspension bridges and composite structure bridges, among which girder bridges are the most common. During the construction and operation of girder bridges, the girder body of the superstructure of the originally correctly positioned concrete girder bridge has longitudinal deviation. Since the beam body is usually connected by several spans to form a joint, the longitudinal deviation must be due to the longitudinal deviation of all the span beams of the joint, which is referred to as the deviation joint. This phenomenon generally has the following reasons: [0003] 1...

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
Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00
Inventor 潘正华阳先全颜昌清程卫军童其强张昶王浩张文明盛焰正何航
Owner 武汉中交试验检测加固工程有限责任公司
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