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Reinforcing method for reinforcing structure with cracks in bridge piers

A technology for strengthening structures and cracks, applied in bridge reinforcement, bridges, bridge construction, etc., can solve problems such as easy spalling of concrete, spalling of protective layer, and reduction of bridge bearing capacity, so as to reduce the tendency of cracks to spread in depth and reduce aggravated damage Possibility, the effect of reducing the possibility of falling off

Active Publication Date: 2021-07-30
中铁二十四局集团江苏工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the pier is exposed in the air, or due to the design of the pier itself, the concrete on the pier is prone to peeling off, exposed ribs, cracks, etc. Some cracks continue to expand under the action of loads or external physical and chemical factors. As a result, the carbonization of the concrete, the peeling of the protective layer, and the formation of a mechanical discontinuity inside the bridge greatly reduce the bearing capacity of the bridge.
[0004] If it is not repaired in time, it will gradually increase on the basis of the original cracks until the road and bridge are damaged. At this time, it needs to be renovated again, causing additional economic expenditure and wasting money. Therefore, there is an urgent need for a structure that can reinforce cracks in bridge piers

Method used

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  • Reinforcing method for reinforcing structure with cracks in bridge piers
  • Reinforcing method for reinforcing structure with cracks in bridge piers
  • Reinforcing method for reinforcing structure with cracks in bridge piers

Examples

Experimental program
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Effect test

Embodiment

[0048] refer to figure 1 , a reinforcement structure for bridge pier cracks, which includes a positioning piece 3 and a fixing piece 4 relatively arranged on the side wall of the crack 2, the positioning piece 3 and the fixing piece 4 form a positioning group 5, and there are Several positioning groups 5, the side wall of the pier 1 is provided with a sealing plate 7 for sealing the crack 2, the side wall of the sealing plate 7 is provided with a partition plate 70 inserted into the crack 2, the sealing plate 7 and the partition plate 70 Steel plates are preferably used, and the partition plate 70 is located between adjacent positioning groups 5. The partition plate 70 cuts the space in the crack 2 into multiple regions 701, and the side wall of the sealing plate 7 and the top of the crack 2 are provided with a barrier. Broken plate 702; the crack 2 is separated by the partition plate 70, and each area 701 is filled successively, so that the filler can fill the crack 2, reduce...

Embodiment 2

[0067] A method for strengthening bridge pier cracks, the specific construction method is:

[0068] (1) First, the worker cleans the crack 2 of the pier 1, removes the loose residues in the crack 2, and corrects the crack 2 into a regular shape, preferably V-shaped, so as to facilitate the later cutting of the shape of the partition plate 70, and then On the opposite side walls of the crack 2, two opposite positioning grooves 20 are drilled. According to the shape of the crack 2, the partition plate 70 and the blocking plate 702 are cut and welded on the sealing plate 7, and the wooden stopper 700 is inserted into the in the third opening 78;

[0069] (2) Install the positioning plate 30 and the fixing plate 40 in the positioning groove 20 respectively, the steel wire rope 6 connects the two opposite positioning plates 30 and the fixing plate 40, the worker holds the sealing plate 7 close to the crack 2, and separates the separating plate 70 and the blocking plate 702 are ins...

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Abstract

The invention discloses a bridge pier crack reinforcement structure and a reinforcement method thereof, which relates to the field of bridge maintenance and aims to solve the technical problems in the prior art that the bridge pier cracks are not repaired in time, which may easily cause the bridge to be repaired and increase expenses, including setting The positioning piece and the fixing piece on the side wall of the crack, the positioning piece and the fixing piece are arranged opposite to each other and form a positioning group, and several positioning groups are arranged in the crack and along its length direction, the positioning piece and the fixing piece are connected by wire ropes, and the side of the pier The wall is provided with a sealing plate for sealing the crack, and the side wall of the sealing plate is provided with several partition plates inserted into the crack, and the partition plate is located between adjacent positioning groups, and the side wall of the sealing plate is located There is a blocking plate on the top, and several grouting ports for injecting filler are evenly distributed on the side wall of the sealing plate. The grouting port is located on one side of the positioning group, and a sealing plug is provided on the grouting port; Carry out repair and reinforcement, reduce the possibility of repairing the bridge, and reduce expenditure.

Description

technical field [0001] The invention relates to the field of bridge maintenance, more specifically, it relates to a method for reinforcing structures for cracks in bridge piers. Background technique [0002] Bridges generally refer to structures erected on rivers, lakes and seas to allow vehicles and pedestrians to pass smoothly. In order to adapt to the modern high-speed development of the transportation industry, bridges are also extended to buildings that cross mountain streams, poor geology or meet other transportation needs to make traffic more convenient. A bridge is generally composed of a superstructure, a substructure, a support and ancillary structures. The superstructure is also called a bridge span structure, which is the main structure for crossing obstacles; the substructure includes abutments, piers and foundations; Or the force transmission device installed at the supporting place of the bridge abutment; the auxiliary structures refer to the bridge head boar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D22/00E01D19/02
CPCE01D19/02E01D22/00
Inventor 谢以顺赵永强任桂林黄景懿王康
Owner 中铁二十四局集团江苏工程有限公司