Precise Positioning Method for Prefabricated Stairs

Abstract

The invention discloses a method for precise positioning of prefabricated stairs, which includes the following steps: S1, an auxiliary positioning device for prefabricated stairs; The positioning support on the pre-embedded steel plate, the positioning support is composed of an angle steel and an angle plate; S2, the corner position of the roughly prefabricated staircase on the staircase interface; S3, the pre-embedded steel plate is pre-embedded at the corner position; S4 , on each pre-embedded steel plate, accurately release the corner position of the stair installation, and place the angle steel of the positioning support corresponding to the corner position, and then fix the corner plate on the pre-embedded steel plate; S5, hoist the prefabricated staircase, place the precast staircase Hang above the positioning support so that the two opposite corners correspond to the angle steel of the positioning support, and lower the prefabricated stairs after corresponding.

Description

technical field [0001] The invention belongs to a prefabricated building assembly method, in particular to a precise positioning method for prefabricated stairs. Background technique [0002] Prefabricated stairs are prefabricated in the factory and then transported to the construction site for installation. Compared with traditional cast-in-place stairs, there is no need for supporting formwork and no need for watering and maintenance, which solves the cumbersome process and low construction efficiency of cast-in-place stairs The problem greatly shortens the construction period, so it is adopted by more and more projects. [0003] Generally speaking, the installation of prefabricated stairs is realized by the following steps: pouring the staircase interface and prefabricating the staircase - maintenance - setting mortar leveling layer at the staircase interface - hoisting the prefabricated staircase - correcting the prefabricated staircase - fixing the prefabricated stairca...

AI Technical Summary

Problems solved by technology

In the above construction process, there is insufficient precision when hoisting the prefabricated stairs, and it is difficult to ensure the accuracy of the plane position and elevation of the staircase installation

After hoisting in place, it is generally necessary to fine-tune with a crowbar, which is easy to damage the edges and corners of the stairs

The prefabricated stairs are generally fair-faced concrete, without decoration on it, once the edges and corners are damaged, it is not easy to repair and the color difference will affect the appearance

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