Novel production process of prefabricated pier column

Abstract

The invention relates to a novel production process of a prefabricated pier column. The novel production process of the prefabricated pier column comprises the following steps: step 1, a formwork is designed and machined; step 2, the formwork is cleaned; step 3, a bottom formwork is mounted; step 4, a reinforcement cage is hoisted into the formwork; step 5, a side formwork is installed; step 6, concrete is poured; step 7, formwork removal and maintenance are conducted; step 8, the pier column is hoisted away; step 9, storing and inspecting are conducted; and step 10, roughening and leaving the factory are conducted. According to the invention, horizontal pouring is adopted for prefabricated pier column concrete pouring, a series of working procedures such as formwork overturning frame installation, overturning hanging bracket installation, formwork overturning, hoisting the formwork to a pouring table to be fixed, operation platform installation, component overturning and the like are omitted, and limitation of the height / length of a prefabricated pier column, the hoisting height of hoisting equipment and a component overturning mechanism is not needed; and therefore, the pouring speed is increased, time and labor are saved, and the prefabricating efficiency is improved. Horizontal pouring is adopted for prefabricated pier column concrete pouring, and therefore, climbing operation of workers is not needed, operation safety is guaranteed, and production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of civil construction, and in particular relates to a novel production process of prefabricated pier columns. Background technique [0002] With the promotion of prefabricated bridge technology, bridge piers began to adopt the technology of factory prefabrication and on-site installation. The traditional prefabrication of pier columns adopts vertical prefabrication. The process includes the installation of formwork turning frame, bottom formwork installation, steel cage hoisting and loading into the mold, side and top formwork installation, turning hanger installation, formwork turning, formwork hoisting to the pouring platform and fixing, Operation platform installation, concrete pouring, formwork removal, maintenance, piers hoisting and storage. However, there are some problems in the process of vertical prefabricated piers: 1. When the height of the prefabricated piers is too high, due to the limitation ...

AI Technical Summary

Problems solved by technology

However, there are some problems in the process of vertical prefabricated piers: 1. When the height of the prefabricated piers is too high, due to the limitation of the height of the lifting machinery, the pier formwork cannot be turned over and the subsequent operation process, resulting in the failure of prefabricated piers Production; 2. During the prefabrication process using the vertical prefabrication production process, the pier columns and formwork need to be turned over, the work process is cumbersome, and the pouring of concrete requires workers to climb heights, resulting in high safety risks and low production efficiency

[0003] Although some patents in the prior art have proposed relevant solutions, they have not solved the technical problems proposed by this patent.

For example, publication number: CN109176843A, patent title: a horizontal pier-column-cover-beam integrated prefabricated mold and its construction method. The problem solved is that the traditional pier-column and cover-beam cast-in-place have long construction period, poor safety and difficult construction quality. The technical problem of guaranteeing and environmental protection pressure is high. Although this technical problem is similar to the above-mentioned technical problem to be solved in this patent application, the integrated prefabricated mold of horizontal pier column cover and beam and its construction method proposed in this way are used in the integrated prefabricated pier column cover. During the beam construction process, the main realization is that the formwork structure of the cover beam, the formwork structure of the circular pier column and the mold chassis are welded into a whole to ensure the verticality and accuracy requirements between the pier column and the cover beam; and the formwork structure of the cover beam The relative position with the formwork structure of the pier column is positioned through the positioning sleeve, which ensures the accuracy of the overall structural size of the pier column cover beam

And the publication number: CN107165052A, patent title: a horizontal assembly system for prefabricated bridge pier templates of prefabricated bridges, it is proposed that the assembly of large bridge steel tower segments is time-consuming and laborious, and the assembly equipment is inconvenient to operate, thus affecting the tower section. Due to the problem of metal contact ratio requirements, a horizontal assembly system for prefabricated bridge pier formwork for prefabricated bridges was invented. Although the concept of "horizontal assembly" was proposed, the technical solution is to set multiple load-carrying bridge formwork on the horizontal track The lifting and assembling trolley can adjust the height of the bridge formwork on the corresponding trolley by lifting and assembling the trolley, so as to effectively improve the butt joint fit of each bridge formwork joint, and it does not solve the technical problems raised by this patent

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