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Steel-concrete combined section of cable-stayed bridge and ultra-large area grouting construction method of steel-concrete combined section

A technology with super large area and construction method, applied in cable-stayed bridges, bridges, bridge materials, etc., can solve the problems of low construction efficiency, poor grouting effect, complex structure, etc., and achieve the effect of ensuring grouting quality

Pending Publication Date: 2022-07-22
CCCC SHEC SECOND ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the structure of this method is relatively complex, the construction efficiency is low, and the grouting effect is not good when the top surface of the tower has no slope

Method used

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  • Steel-concrete combined section of cable-stayed bridge and ultra-large area grouting construction method of steel-concrete combined section
  • Steel-concrete combined section of cable-stayed bridge and ultra-large area grouting construction method of steel-concrete combined section

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Experimental program
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Effect test

Embodiment 1

[0037] Embodiment 1: In order to solve the construction method of super large area grouting in the steel-concrete joint section of the cable-stayed bridge in the prior art, the construction process is relatively complicated, the construction efficiency is low, and the grouting effect is not good when the top surface of the tower has no slope. technical problem. The present embodiment provides a super-large area grouting construction method for a steel-concrete joint section of a cable-stayed bridge, comprising the following steps:

[0038] Step 1) Chisel slot 1;

[0039] Step 2) Setting the partition wall 2;

[0040] Step 3) Set the pad 3;

[0041] Step 4) install the first segment steel tower;

[0042] Step 5) Grout the bearing plate 4.

[0043] The super-large-area grouting construction method for the steel-concrete joint section of the cable-stayed bridge provided by the present invention is that the tower base concrete is reserved around the top surface of the tower ba...

Embodiment 2

[0044] Embodiment 2: On the basis of Embodiment 1, this embodiment provides a super-large area grouting construction method for the steel-concrete joint section of a cable-stayed bridge. Step 1) The specific process of chiseling the slot 1 is as follows: The tower base is poured to the top surface of the grouting layer 5. After pouring, the top surface of the tower base can be formed into a plane, which has a wide range of applications and does not require high flatness on the top surface of the tower base. Leave 25-35cm thick concrete of the tower base, and cut off the rest of the top surface of the tower base by chiseling to form a notch 1 with a depth of 5-10cm.

[0045] The chisel slot 1 is to pour the tower base to the top surface of the grouting layer 5 during the construction of the tower base, and then chisel the overcast concrete by chiseling to form a slot 1 with a depth of 5cm. In order to ensure the top of the tower base Surface flatness and grouting quality, durin...

Embodiment 3

[0046] Embodiment 3: On the basis of Embodiment 1, the present embodiment provides a super-large area grouting construction method for the steel-concrete joint section of a cable-stayed bridge. Step 2) The process of setting the partition wall 2 is as follows: The notch 1 is divided into a plurality of grouting areas of equal area by the partition wall 2.

[0047] The present invention is aimed at the grouting area greater than 270m 2 , In order to avoid the problem of insufficient grouting in the super-large grouting area, the super-large grouting area is divided into equal areas by setting partition 2, and then grouting is performed. Only a small area needs to be grouted each time, which can not only ensure the grouting quality, but also improve the grouting efficiency.

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Abstract

The invention provides a cable-stayed bridge steel-concrete combined section and an ultra-large area grouting construction method thereof. The method comprises the steps of notch chiseling, partition wall arrangement, cushion block arrangement, first section steel tower installation and bearing plate grouting. Wherein the notch chiseling is realized by pouring the tower base to the top surface of a grouting layer in the construction process of the tower base, then reserving tower base concrete with the width of 30cm on the periphery of the top surface of the tower base, and chiseling over-poured concrete with the width of 5cm in a chiseling manner, region segmentation is performed by arranging a partition wall, and a cushion block is arranged to support the first section of steel tower; grouting is achieved by directly conducting grouting from the opening position of the pressure bearing plate. The concrete around the tower base is used as the fence, so that a template does not need to be erected, the pollution to the inclined plane of the tower base during grouting is avoided, and the grouting quality is improved; the partition wall adopts the grouting material and the rubber strip, so that the leakproofness is enhanced; by means of the construction method, guarantee is provided for high-quality and high-efficiency construction of super-large-area grouting of the steel-concrete combined section of the cable-stayed bridge.

Description

[0001] This application is a divisional application for an invention patent titled "A Super-Large Area Grouting Construction Method for a Steel-Concrete Joint Section of a Cable-Stayed Bridge"; the application number of the parent application is: CN202010434452.6; the application date of the parent application is : 2020-05-21. technical field [0002] The invention relates to the technical field of building construction, in particular to a steel-concrete combined section of a cable-stayed bridge and a super-large area grouting construction method. Background technique [0003] The construction of large-area cement slurry layer after grouting of the bearing plate is a very important construction process in the construction of the steel-concrete joint section of the main tower of the cable-stayed bridge. Generally, the top surface of the tower has a slope. After the bearing plate is installed and positioned, The holes on the bearing plate are blocked with wooden wedges, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D11/04E01D19/14E01D21/00E01D101/30E01D101/24
CPCE01D21/00E01D11/04E01D19/14E01D2101/24E01D2101/30
Inventor 张其玉周畅田欣刘彦军阳斯成邬洪卫张凯张哲
Owner CCCC SHEC SECOND ENG