Two-stage unsupported construction method used for repairing damaged hydraulic concrete beams

A hydraulic concrete and disease technology, applied in water conservancy engineering, construction, marine engineering and other directions, can solve the problems of inability to carry out maintenance, difficult to implement, and unable to bear weight.
CN101550684AActive Publication Date: 2009-10-07南京瑞迪建设科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
南京瑞迪建设科技有限公司
Publication Date
2009-10-07

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Abstract

The invention relates to a two-stage unsupported construction method used for repairing damaged hydraulic concrete beams, belonging to the technical field of civil engineering. The construction method comprises the following steps: a node slot hole is manufactured at the lower part of a beam base body; the two sides of the node slot hole of the beam base body are respectively provided with a pulling rod steel bar; a node member is poured at the node slot hole position; concrete which is corroded and damaged at the bottom part of the beam base body is chiseled off; the steel bars which are corroded seriously at the bottom part of the beam base body are removed and loosened and laminated parts are eliminated; the two sides of the bottom part of the beam base body are respectively provided with additional steel bars; and a concrete protective layer with the concave-shaped section is poured at the bottom part of the beam base body and covers the additional steel bars, the pulling rod steel bar and the node member which are built into a whole body with the beam base body. The construction method bears construction period load applied to the beam body by damaged concrete beams and a pulling rod system, and saves external supports. After the construction is completed, the pulling rod steel bar becomes a main stressed bar of the concrete beam, thus realizing that one object has two purposes, solving the difficulties on repairing the hydrostructure, and also greatly saving the engineering cost.
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Description

technical field

[0001] The invention relates to a two-stage support-free construction method for repairing damaged concrete beams, which is especially suitable for repairing damaged hydraulic structures and belongs to the technical field of civil engineering. Background technique

[0002] According to the applicant's knowledge, the repair of structural damage caused by corrosion of steel bars in concrete has become a major engineering problem worldwide, and the corrosion and damage of hydraulic concrete buildings is particularly serious, such as existing wharves, sluices, tide gates, etc. Corrosion of steel bars in construction structures, cracking and exposed reinforcement in concrete protective layer, endangering engineering safety. At present, a large number of corroded and damaged hydraulic concrete structures are facing repair and disposal problems.

[0003] Practice has proved that the corrosion damage of beams in hydraulic concrete structures is mainly due to the cor...

Claims

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