Method for secondary pouring of staircase columns through formwork supporting

Abstract

The invention relates to a method for secondary pouring of staircase columns through formwork supporting. The method for pouring of the staircase columns comprises the steps that according to the constructed sizes of the staircase columns and a shear wall, column formworks are manufactured, the supporting heights of the column formworks exceed the construction height of a structural layer, and the column formworks extend to the bottoms of beams and plates of an upper-layer resting platform of the structural construction layer to be subjected to formwork distribution; and then, according to the storey height, the arrangement of column formworks of the next construction section is conducted, supporting upper openings of the column formworks of the previous construction section serve as the basis of next formwork supporting, formwork supporting is advanced sequentially, and the sides, close to staircases, of the column formworks are arranged continuously from bottom to top. The overall appearance quality of concrete of the staircases is improved, the checking link is reduced, meanwhile, the labor intensity of workers is reduced, the construction speed is increased, and the technical problems that the staircase columns are difficult to reinforce, and displacement is liable to occur are solved effectively.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a method for supporting formwork for secondary pouring of stairwell columns. Background technique [0002] The pouring of stairwell columns is a commonly used technology in the field of construction, and it is also very critical. With the development of the construction industry, the application of this technology is also increasing. [0003] But, there is following defective in the pouring method of present stairwell column: [0004] 1. The quality of the stairwell column often has the quality problem of misalignment, which reduces the overall quality of the concrete in the stairwell; [0005] 2. The process of repairing and correcting the column feet is required for each pouring, which increases the inspection process and greatly increases the labor intensity of workers; [0006] 3. The traditional construction technology will cause overflow during concrete pouring, wast...

AI Technical Summary

Problems solved by technology

[0004] 1. The quality of the stairwell column often has the quality problem of misalignment, which reduces the overall quality of the concrete in the stairwell;

[0005] 2. The process of repairing and correcting the column feet is required for each pouring, which increases the inspection process and greatly increases the labor intensity of workers;

[0006] 3. The traditional construction technology will cause overflow during concrete pouring, waste materials and increase cleaning work, which reduces the construction speed;

[0007] 4. After the formwork is removed, it is necessary to manually repair or chisel the concrete column foot in the stairwell, which increases the labor cost;

[0008] 5. The installation of formwork is complicated and the operation is cumbersome, which leads to technical problems that it is difficult to reinforce the columns in the stairwell and easy to shift;

[0009] 6. The performance of cement mortar and concrete is poor, such as weak adhesion, no energy saving and environmental protection effect, poor heat preservation effect, poor durability and poor stability

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