A method for quickly strengthening concrete columns

Abstract

The invention discloses a method for reinforcing a concrete column rapidly. The method for reinforcing the concrete column rapidly comprises the steps that small channel steel and big channel steel which are matched with the concrete column in sectional dimension and used for reinforcement are manufactured, and bolt holes are reserved in flanges of the small channel steel and the big channel steel correspondingly; a bonding and anchoring area of the concrete column is polished and cleaned to be flat; the small channel steel is installed in the design position, corresponding through bolt holes are drilled in the surface of the bonding and anchoring area of the concrete column, and the through bolt holes are cleaned; the bonding and anchoring area is sleeved with the small channel steel after a building structural adhesive is smeared on the bonding and anchoring area, and the flange of the small channel steel is tightly attached to the bonding and anchoring area; the building structural adhesive is smeared on a second bonding and anchoring area of the small channel steel, the second bonding and anchoring area is sleeved with the big channel steel open in the opposite direction, and the flange of the big channel steel is tightly attached to the second bonding and anchoring area; the adhesive is injected into the through bolt holes, and opposite through bolts are embedded in the through bolt holes; and nuts of the opposite through bolts are screwed, so that the small channel steel, the big channel steel and the concrete column are fixed together. According to the method for reinforcing the concrete column rapidly, the construction steps are simple, and the construction period is short; the bearing capacity, the lateral stiffness and the seismic ductility of the column can be greatly improved; and the overall performance of the column is good, and the reliability is high.

Description

technical field [0001] The invention relates to a reinforcement method, in particular to a method for rapidly reinforcing concrete columns. Background technique [0002] A large number of reinforced concrete columns in industrial and civil buildings have problems such as insufficient bearing capacity and other problems affecting safety and use functions due to design and construction defects or aging, damage and disasters in the long-term use process. Reinforcement is urgently needed . For example, in civil buildings, due to the reconstruction of building structures, the addition of machines in industrial plants and the overloading of bridge structures, the bearing capacity of the original structure is insufficient, and it is urgent to greatly increase the bearing capacity of reinforced concrete columns through reinforcement methods. [0003] At present, in the actual reinforcement of reinforced concrete columns, the most widely used reinforcement methods are enlarging cros...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a rapid reinforcement method that can significantly improve the bearing capacity and ductility of concrete columns in view of the defects existing in the existing reinforcement methods, and solve the problem of increasing the cross-section of the original structure caused by the reinforcement of the enlarged cross-section existing in the prior art. It is relatively large, which has a great impact on the self-weight of the structure, and the site needs formwork, and the maintenance period is long, so it cannot be put into use quickly; it also solves the problem of limited ductility improvement of the columns reinforced by outsourcing angle steel, and the problem of many construction components; at the same time, it solves the problem of The problem of limited increase in the bearing capacity of viscose fiber reinforced composite materials after reinforcement; and the problem of high technical requirements for external prestressed reinforcement method and the difficulty of anchoring treatment

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