Bridge pile foundation on-site-binding reinforcement cage deviation control formwork and construction method thereof

Abstract

The invention belongs to a bridge pile foundation on-site-binding reinforcement cage deviation control formwork and a construction method thereof. The bridge pile foundation on-site-binding reinforcement cage deviation control formwork includes a fixed plate panel, a fixed plate supporting frame, a fixed reinforcement cage positioning plate, a mobile reinforcement cage positioning plate, a reinforcement cage positioning arc plate and a reinforcement sleeve assembly. The construction method includes the steps that the bottom of the on-site-binding reinforcement cage in a column is fixed by thefixed reinforcement cage positioning plate and reinforcement sleeves, the top of the on-site-binding reinforcement cage in the column is fixed by the mobile reinforcement cage positioning plate and the reinforcement cage positioning arc plate and reinforcement sleeves, and construction of various column bodies with different diameters is completed by changing the diameters of the mobile reinforcement cage positioning plate and the reinforcement cage positioning arc plate, and the positions of the reinforcement sleeves corresponding to the diameter of the variable diameter reinforcement cage. The bridge pile foundation on-site-binding reinforcement cage deviation control formwork can effectively control, correct and is suitable for the deviation of the on-site-binding reinforcement cage ofpile foundations with different diameters and has the advantages of simple structure, high construction speed, good quality, low production and use cost, less time and labor, and wide applicability.

Description

technical field [0001] The invention belongs to a bridge pile foundation existing binding steel cage deviation control formwork and a construction method thereof. Background technique [0002] The displacement problem of the steel cage of the pile foundation (including bridge piers and columns) is a quality problem often encountered in the construction of the pile foundation, especially the displacement problem of the reinforced cage currently bound in the pile foundation formwork is more serious. In particular, the deflection problem of bridge piers, columns whose diameter is continuously shrinking from the bottom to the top and the width of the bottom and the top is narrow, and the variable-diameter reinforcement cages in the columns are also more serious. [0003] If the deviation of the reinforcement cage of the pile foundation is light, the thickness of the protective layer of the pile foundation reinforcement will be insufficient, and if it is serious, the phenomenon o...

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Problems solved by technology

[0003] If the deviation of the reinforcement cage of the pile foundation is light, the thickness of the protective layer of the pile foundation reinforcement will be insufficient, and if it is severe, the phenomenon of exposed reinforcement will appear, which will seriously affect the internal quality of the pile foundation

The corrosion of reinforced steel bars caused by the deviation of steel cages and exposed bars is often encountered in the maintenance and reinforcement construction of some bridge pile foundations, and some are quite serious. Since pile foundations are mostly underground or high-altitude projects, it is difficult and time-consuming to deal with them. Labor-intensive and expensive

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