Manufacturing method of reinforcement cage of pouring pile with large diameter

Abstract

The invention discloses a manufacturing method of a reinforcement cage of a pouring pile with the large diameter, relating to the technical field of construction project. The invention aims at reducing the labor intensity while improving manufacturing accuracy and work efficiency. The method is characterized in that a manufacturing device consisting of a plurality of rolling bearing frame assemblies and transmission bearing frame assemblies is arranged according to a projection line of a central axis line of the reinforcement cage; openable ring mould assemblies are arranged on each transmission bearing frame assembly; inner walls of the ring mould assemblies are provided with a plurality of main reinforcement positioning grooves; main reinforcements of the reinforcement cage is lifted into the ring mould assemblies, the ring mould assemblies are driven through a low-speed drive gear to rotate so that each main reinforcement enters the main reinforcement positioning grooves and is fixedly welded with rectilinear hoops; and the ring mould assemblies are rotated and winded and reinforcing steel bars are rounded by using spot welding so as to realize mechanization manufacture of the reinforcement cage of the pouring pile with the large diameter. The method provided by the invention can realize high manufacturing accuracy and cage-making work efficiency of the reinforcement cage, can greatly reduce the labor intensity and reduce the worker amount of unit cage manufacture amount and is beneficial to quickening the project progress.

Description

technical field [0001] The invention relates to construction engineering technology, in particular to a technology for manufacturing a large-diameter cast-in-situ pile reinforcement cage used for large-scale and super-large bridge pile foundations. Background technique [0002] With the vigorous development of large and super large bridge construction in China, the design diameter of bored piles for main and auxiliary piers of large and super large bridges has been developed from about 2m to 3m ~ 4m. The design diameter of reinforcement) and reinforcement stirrup material is also increased from Φ25~Φ32 to Φ40~Φ50 (Φ50 is the largest diameter specification of rebar produced in China at present), and the weight of a single 12.5m long steel bar is also increased from 48kg~79kg To 123kg ~ 193kg. [0003] Traditional cast-in-place pile reinforcement cages are all made manually. Since the main reinforcement of a single-section reinforcement cage for large-diameter cast-in-place p...

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Problems solved by technology

[0003] Traditional cast-in-place pile reinforcement cages are all made manually. Since the main reinforcement of a single-section reinforcement cage for large-diameter cast-in-place piles has dozens of main reinforcements (for example, for a load-bearing cast-in-place pile with a diameter of Φ4200, the diameter of the reinforcement cage is usually 4m. This reinforcement cage The design quantity of the main reinforcement is generally 60-90), so a large amount of labor is required to carry the steel bars during production, which has the defects of high labor intensity, slow progress of the project, and low production efficiency. The spacing and positioning accuracy between the main reinforcement and the reinforcement stirrup are also poor, and the production quality is not high

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