Base plate for prestressed tensioning of concrete anchor block of segmented bent cap and using method of base plate

A concrete anchor block and prestressing technology, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., to achieve the effect of simple demolition process, improving construction efficiency and avoiding local damage

Pending Publication Date: 2022-05-27
SHANGHAI NO 4 CONSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a backing plate for prestressed tensioning of the concrete anchor block of the segmented cover beam and its use method, so as to solve the problem of how to carry out prestressed tension without destroying the concrete anchor block. question

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  • Base plate for prestressed tensioning of concrete anchor block of segmented bent cap and using method of base plate
  • Base plate for prestressed tensioning of concrete anchor block of segmented bent cap and using method of base plate
  • Base plate for prestressed tensioning of concrete anchor block of segmented bent cap and using method of base plate

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Embodiment Construction

[0034] The present invention will be described in detail below with reference to the accompanying drawings: The advantages and features of the present invention will be more clearly understood from the following description. It should be noted that, the accompanying drawings are all in a very simplified form and in inaccurate scales, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the present invention.

[0035] Please refer to Figure 1 to Figure 3 , the embodiment of the present invention provides a concrete anchor block prestressed tensioned backing plate 100 of a segmented cover beam, including:

[0036] The bottom plate 110 is provided with a central through hole 111 in its center.

[0037] The top plate 120 is disposed in parallel with the bottom plate 110 , the center of the top plate 120 is provided with a central through hole, and the connection line between the central through hole 111 of the bottom plate 110 and the c...

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Abstract

The invention discloses a base plate for prestressed tension of a concrete anchor block of a segmented cover beam and a using method of the base plate. The top plate is arranged in parallel with the bottom plate at intervals, a central through hole is formed in the center of the top plate, and the connecting line of the central through hole of the bottom plate and the central through hole of the top plate forms an axis; the stiffening plates are evenly distributed and perpendicularly connected between the bottom plate and the top plate, the stiffening plates are close to the axis and do not make contact with one another, a notch is formed in each stiffening plate, and the notches are formed in the direction of the bottom plate and the axis. When prestress tension is applied to the concrete anchor block of the segmented bent cap, the acting area of force is increased through the base plate, stable supporting can be provided for the concrete anchor block, counter force is provided for the jack, and the safety performance of prestress application of the jack is guaranteed. And meanwhile, the base plate is easy and convenient to install and dismantle, and the construction efficiency of deformed steel bar tensioning is effectively improved.

Description

technical field [0001] The invention relates to the technical field of bridge construction engineering, in particular to a backing plate for prestressed tensioning of concrete anchor blocks of segmented beams and a method for using the same. Background technique [0002] At present, the cover beams generally have the characteristics of large size and heavy weight in the construction technology of bridges with large width. Transported to the site for overall splicing in the air. Among them, after the adjacent segmented cover beam components are hoisted in place and the splicing surfaces are matched, the segmented prefabricated cover beam components need to be prestressed and tensioned through concrete anchor blocks, specifically: the concrete anchor blocks are pierced on the segmented blocks. On the threaded steel of the prefabricated cover beam member, the jack is tightened on the concrete anchor block for prestress tensioning, and the jack head is tightened on the concrete...

Claims

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Application Information

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IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 张云妹郑晏华李申杰张锡霖吴昊延周振海于猛李晨辉周君姚艳曹佳雯
Owner SHANGHAI NO 4 CONSTR
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