Prefabricated stand column in-plant overturning method

Abstract

The invention provides a prefabricated stand column in-plant overturning method. The method comprises the steps that an overturning area is arranged, wherein the overturning area comprises a foundation pit, the foundation pit is defined by side walls on the four sides, the side walls can support a prefabricated stand column, and the interior of the foundation pit is filled with sandy soil; the prefabricated stand column is overturned to a horizontal state from a vertical state, wherein the prefabricated stand column is vertically hoisted and moved to the position above one side wall of the foundation pit, and one side of the bottom of the prefabricated stand column is aligned with the side wall; the prefabricated stand column is lowered, one side of the bottom of the prefabricated stand column is supported on the side wall, and the other side of the bottom of the prefabricated stand column is suspended above the sandy soil; the prefabricated stand column continues to be lowered, the bottom of the prefabricated stand column overturns towards the interior of the foundation pit due to single-side stress, and the other side of the bottom of the prefabricated stand column is located inthe sandy soil; and under the traction of a hoisting device, the prefabricated stand column continues to be overturned till the prefabricated stand column completely lies in the foundation pit, and overturning of the prefabricated stand column from the vertical state to the horizontal state is completed. According to the prefabricated stand column in-plant overturning method, the overturning areais simple in component and easy and convenient to operate, and the effect of protecting the appearance of the prefabricated stand column is achieved.

Description

technical field [0001] The invention relates to the construction field of prefabricated columns in the construction of prefabricated bridges, in particular to a method for inverting prefabricated columns in a factory. Background technique [0002] When the prefabricated components of pier columns are produced in the factory, in order to facilitate the production of steel cages and the installation of formwork, horizontal cages are generally used to enter the mold. The rear column rests vertically on the pouring pedestal. However, when the column is transported, due to the high height of the column, it cannot meet the conditions of road transportation. The column must be laid down and transported horizontally, resulting in the column needing to be turned over once in the factory, from the vertical position to the horizontal position. state. [0003] Due to the heavy weight of the column and the protection of the finished concrete product from damage during the overturning p...

AI Technical Summary

Problems solved by technology

However, when the column is transported, due to the high height of the column, it cannot meet the conditions of road transportation. The column must be laid down and transported horizontally, which leads to the need for the column to be turned over once in the factory, from the vertical position to the horizontal position. state

[0003] Due to the heavy weight of the column and the protection of the finished concrete product from damage during the overturning process, the overturning operation of the column is difficult. Therefore, it is necessary to design a method and device for overturning the column to ensure that the overturning of the column components is safe and reliable. protect the concrete

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