Quick-mounting type concrete stair and mounting method thereof

Abstract

The invention discloses a quick-mounting type concrete stair and a mounting method of the quick-mounting type concrete stair. The quick-mounting type concrete stair comprises a prefabricated flight, a cast-in-place upper layer stair platform, a cast-in-place lower layer stair platform, a cast-in-place upper layer stair beam and a cast-in-place lower layer stair beam, wherein at least two flight pre-buried elements are respectively pre-buried on the vertical surfaces of the connecting ends of the prefabricated flight, the cast-in-place upper layer stair platform and the cast-in-place lower layer stair platform, the flight pre-buried elements are buried in the vertical surfaces on the two ends of the prefabricated flight, a lifting element is pre-buried on the prefabricated flight, L-shaped lapping openings lapped with the prefabricated flight are preserved on the upper corners of the cast-in-place upper layer stair beam and the cast-in-place lower layer stair beam, at least two stair beam pre-buried elements are pre-buried on an upper table top close to the lapping openings, the positions of the stair beam pre-buried elements and the flight pre-buried elements are one-to-one correspondent to each other, and the flight pre-buried elements and the stair beam pre-buried elements are welded and fixed by angle iron. With the adoption of the quick-mounting type concrete stair disclosed by the invention, the technical defects of complex construction technique of firstly binding reinforcing steel bars and pouring concrete and long time of the concrete stair, and the necessity of prefabricating of all flights, platform plates and stair beams in the traditional concrete prefabricated stair are overcome.

Description

technical field [0001] The invention relates to a building component and an installation method thereof, in particular to a concrete prefabricated staircase and an installation method thereof. Background technique [0002] Stairs are one of the very important structural components in residential building structures. Generally, stairs are constructed of cast-in-place concrete. Since the stairs are inclined and irregular building structural components, during the cast-in-place construction, it brings great inconvenience to the stair formwork support and concrete pouring, resulting in a large deviation of the structure size, and the completion effect of the concrete cannot be guaranteed. In addition, the cast-in-place staircase uses pre-embedded stair steel bars in the main structure. After the concrete pouring of the main structure is completed, the pre-embedded steel bars are removed, and then the stair structure is constructed. The stair structure is not constructed at the s...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a quick-installed concrete staircase and its installation method, which solves the technical defects of complex construction technology and long construction time in the existing concrete staircases of binding steel bars first and then pouring concrete, and solves the problems in traditional concrete prefabricated staircases. The technical defect that all the ladder sections, platform slabs and ladder beams need to be prefabricated and the installation process is cumbersome

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