Construction method for maintaining and locally reinforcing reinforced concrete structure

A technology of reinforced concrete and construction methods, applied in building maintenance, building construction, construction, etc., can solve problems such as concrete surface cracking, long construction period, and affecting normal production

Inactive Publication Date: 2012-12-19
BEIJING SHOUGANG CONSTR GROUP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] For the building structure under dynamic load in industrial buildings, as the service life increases, the reinforced concrete structures such as equipment foundation and track foundation will have problems such as concrete surface cracking and bolt loosening to varying degrees, which will affect normal production
If the reinforced concrete structure with problems is demolished and rebuilt, it will inevitably cause increased costs, and the construction period will be longer

Method used

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  • Construction method for maintaining and locally reinforcing reinforced concrete structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] (1) Remove the attachments 2, equipment and tracks on the reinforced concrete structure 1; then remove the loose concrete on the reinforced concrete structure 1 and the concrete around the loose equipment and track pre-embedded bolts 3.

[0019] (2) Carry out the measurement of the concrete surface elevation and axis of reinforced concrete structure 1.

[0020] (3) On the reinforced concrete structure 1, a reinforced steel plate 4 with the same size as the local reinforcement area of ​​the reinforced concrete structure 1 is added. On the reinforced concrete structure 1, without affecting the position of the attachment 2 equipment, track, etc., add 6 fixed steel plate bolts 6. The number of fixing plate bolts 6 is determined according to the size of the reinforcing steel plate 4 . Holes are drilled on the reinforced concrete structure 1, and the steel plate bolts 6 are fixed with the grouting material 5.

[0021] (4) Drill holes at the position where the reinforced ste...

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PUM

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Abstract

The invention relates to a construction method for maintaining and locally reinforcing a reinforced concrete structure and belongs to the technical field of construction maintenance. The construction method comprises the following steps of: chiseling a cracked concrete surface; additionally arranging a reinforcing steel plate in the size of a reinforcing area of the reinforced concrete structure on the reinforced concrete structure; additionally arranging a plurality of fixing bolts on a reinforced concrete reinforcing surface; confirming the quantity of the fixing bolts according to the size of the reinforcing steel plate; using the fixing bolts to temporarily fix the reinforcing steel plate; and filling grouting slurry in a gap between the reinforcing steel plate and the reinforced concrete structure. The construction method can meet the demands on maintenance and local reinforcement of the reinforced concrete structure. According to the construction method for maintaining, a use function of the reinforced concrete structure construction is achieved by adopting the local reinforcing construction while the original reinforced concrete structure construction is not removed. The construction method has the advantages of simplicity, short construction period, and the like.

Description

technical field [0001] The invention belongs to the technical field of building maintenance and provides a construction method for local maintenance and reinforcement of reinforced concrete structures. Background technique [0002] For the building structures under dynamic loads in industrial buildings, as the service life increases, the reinforced concrete structures such as equipment foundations and track foundations will have problems such as concrete surface cracking and bolt loosening to varying degrees, which will affect normal production. If the reinforced concrete structure in question is demolished and rebuilt, it will inevitably result in increased costs, and the construction period will be longer. [0003] In order to solve the above problems, a maintenance method was developed in which the loose and cracked concrete on the surface of the reinforced concrete structure was partially chiseled off, and the surface was reinforced with steel plates to reinforce the rei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02
Inventor 李静王计增谢木才刘永东陈国云邵连丽
Owner BEIJING SHOUGANG CONSTR GROUP
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