A method for refurbishment and maintenance of pockmarked surface of prefabricated box girder formwork

Abstract

The invention discloses a refurbishment and maintenance method for the pockmarked surface of a prefabricated box girder formwork. A refurbishment plate is attached to the inner panel surface of the formwork. The refurbishment plates of the formwork are assembled in turn to completely cover the inner side of the formwork, and there are several welding holes spaced between the two plate surfaces. The top surface of the refurbished board is ground flush. The present invention uses the maintenance method of sticking board, and uses prefabricated boards to cover the inner surface of the template, so as to achieve the purpose of covering the inner surface of the template with pockmarks and other defects, so as to solve the problem of the pockmarked surface of the template, and not only can solve the template at one time This kind of problem also saves the labor and construction period required by the traditional method to deal with the pockmarked surface, avoids the problem of the secondary depression of the formwork, reduces the labor intensity of the workers, and ensures the construction quality of the prefabricated box girder.

Description

technical field [0001] The invention relates to the technical field of formwork maintenance, in particular to a repairing method for pockmarked surface of prefabricated box girder formwork. Background technique [0002] A large amount of formwork is required in the bridge construction process. Due to frequent use, steel structure formwork is often used in bridge construction. However, as the storage time of the prefabricated box girder formwork becomes longer, it is easy to be attacked by rainwater during storage, resulting in a large number of pockmarks on the surface of the prefabricated box girder formwork and dense pockmarks. Traditional maintenance is often carried out by grinding. Due to the large grinding area, rust will fly during grinding, which affects the health of maintenance personnel. Moreover, the grinding force is not easy to control, which is prone to secondary depressions and increases additional maintenance costs. Contents of the invention [0003] The ...

AI Technical Summary

Problems solved by technology

However, as the storage time of the prefabricated box girder formwork becomes longer, it is easy to be attacked by rainwater during storage, resulting in a large number of pockmarks on the surface of the prefabricated box girder formwork, and the pockmarked surface is relatively dense

Traditional maintenance is often carried out by grinding. Due to the large grinding area, rust will fly during grinding, which affects the health of maintenance personnel, and the grinding force is not easy to control, which is prone to secondary depressions and increases additional maintenance costs.

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