Concrete stand column repairing reinforcing method

Abstract

The invention discloses a concrete stand column repairing reinforcing method. The method comprises the following steps that a component at the top of a stand column is supported; concrete at the defected portion of the stand column is chiseled out to the surface of a main rib; a reinforcing steel bar is implanted into the portion where the concrete is chiseled out; according to the longitudinal size of the chiseled portion, a steel hoop cylinder is manufactured and installed; the portion between the steel hoop cylinder and the concrete chiseled surface is filled with IV-type cement-based slurry; when the filled slurry reaches the design strength, prestress is applied to the filled portion. By adopting the method, structure repairing reinforcing can be performed on the concrete stand column, so that the structure performance of the stand column is greatly enhanced, meanwhile, the existing whole structural engineering is not affected, repeated construction caused by completely disassembling the stand column is avoided, the engineering efficiency can be improved, and the engineering cost is saved.

Description

Technical field [0001] The invention relates to concrete structure repairing technology, in particular to a method for repairing and strengthening concrete columns. Background technique [0002] A concrete column is a column structure made of reinforced concrete materials. It is the most basic load-bearing component in various engineering structures such as houses, bridges, and hydraulics. It is often used as pillars, bridge piers, foundation columns, towers and trusses for floors. 的压杆. During the construction of concrete columns, due to the lack of strict control of the construction process, the following quality defects may sometimes occur in the structural columns: For example, the column top concrete is crushed and damaged; there is a layer of mud and sand under the column cap, the main reinforcement is severely corroded, and some of the main reinforcement The bending is not anchored into the beam body or the roof, and there is no stirrup in the upper section of the column; t...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for repairing and strengthening the concrete column, aiming at the problem of how to repair and reinforce the structure of the column when the above-mentioned quality defects occur in the concrete column. The structural performance of the column is greatly enhanced without affecting the existing overall structural engineering, avoiding repeated construction after the column is completely removed, which can improve engineering efficiency and save engineering costs

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