Construction process for using bridge girder erection machine to remove T-shaped cantilever continuous rigid frame box girders

A construction technology and bridge erecting machine technology, which is applied in building construction, building maintenance, construction, etc., can solve the problems that the T-shaped cantilever continuous rigid frame box girder cannot be transported away, so as to save water equipment, ensure normal shipping, save cost effect

Inactive Publication Date: 2013-08-14
GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG
View PDF5 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The height from the track to the bridge deck of the existing bridge erecting machine is generally 3.5 meters, whi...

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
  • Construction process for using bridge girder erection machine to remove T-shaped cantilever continuous rigid frame box girders
  • Construction process for using bridge girder erection machine to remove T-shaped cantilever continuous rigid frame box girders
  • Construction process for using bridge girder erection machine to remove T-shaped cantilever continuous rigid frame box girders

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0070] Figure 1-22 As shown, the present invention utilizes the bridge erecting machine to remove the T-structure cantilever continuous box girder construction technology, and the specific construction is as follows.

[0071] 1. Construction preparation

[0072] 1. Plan the site, designate the crushing area, and set up safe passages;

[0073] 2. For safe construction, do a good job of safety warnings, instructions and signs according to the requirements of double standards;

[0074] 3. River water is used for construction water;

[0075] 4. According to the power consumption of mechanical equipment, make preparations for power-on;

[0076] 5. Plan, prepare and try out construction machinery, construction materials and construction tools in advance;

[0077] 6. Conduct construction safety education for staff and provide detailed technical disclosure;

[0078] 7. Stack the bridge erecting machine and other components in order; conduct flaw detection tests on key stress-...

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 construction process for using bridge girder erection machines to remove T-shaped cantilever continuous rigid frame box girders. The process is characterized by including the steps of A, mounting the bridge girder erection machines; B, performing trial hanging by the bridge girder erection machine; C, drilling and cutting; D, removing girder sections; E, chiseling girder sections; F, transversely moving the bridge girder erection machine; and G, removing the bridge girder erection machines; wherein the removing equipment includes two 50m-span bridge girder erection machines, and girder turning is achieved by modifying hanging hooks of the bridge girder erection machines; the bridge girder erection machines are heightened by adding Berea groups and pouring concrete strip foundation below support legs of the bridge girder erection machines to realize that the removed girders are delivered out between two main trusses of the bridge girder erection machines through a bridge face. All girder section removing includes girder section prehanging, girder section cutting, girder section turning, girder section transferring, and girder section chiseling. The construction process is low in used equipment, short in construction period, and small in influence on the society, box girders are removed safely while cost is saved a lot and normal operation of channels or passages below a bridge is unaffected, and safe and environment-friendly T-shaped cantilever continuous rigid frame box girder removing is achieved.

Description

technical field [0001] The invention relates to a construction method for dismantling old bridge box girders, in particular to a construction technique for dismantling T-shaped cantilever continuous rigid frame box girders by using a bridge erecting machine. Background technique [0002] The box girder of the bridge is made by hanging baskets, which are prefabricated and assembled together; the width of the main bridge box girder roof is 11.5m on the left and 13.45m on the right; 4.8m changes in a quadratic parabola; the left width of the box girder bottom plate is 9.36m, and the right width is 11.16m; the width of the beam section from block 1 to block 11 is as follows: 1.8m, 2m, 2.4m, 2.4m, 2.4 m, 2.4m, 2.8m, 2.8m, 2.8m, 2.5m, 1.68m. The height of the box girder increases from 1.8m in the 11# block to 4.8m in the 1# according to the quadratic parabola. The thickness of the bridge deck pavement layer is 8cm. The thickness of the girder section of the box girder is relati...

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): E01D24/00
Inventor 张伟锋苏年就刘水周
Owner GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG
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