Assembly type prefabricated combined stair component

Abstract

The invention discloses an assembly type prefabricated combined stair component. The assembly type prefabricated combined stair component comprises high-precision disassembly-free formworks, a combined forming steel bar product, n-shaped steel, L-shaped steel and connecting screws, wherein a plurality of sets of high-precision disassembly-free formworks form a bottom supporting plate, a side sealing face and stair treads of a stair; the n-shaped steel and the hair pulling face of the high-precision disassembly-free formwork below the n-shaped steel are fixed through the connecting screws; theopening side of the n-shaped steel is connected with the bottom of the internal combined forming steel bar product; the high-precision disassembly-free formworks at the stair treads are not mounted and serve as feeding ports; the bottom supporting plate, the side sealing face and the stair treads are connected and combined to form a cavity; and concrete is poured into the cavity and solidified into the stair. The assembly type prefabricated combined stair component is ingenious in concept and compact and reasonable in structure, the combined forming steel bar product and the sealing face are both prefabricated in a factory, the combined component is a hollow component, the weight is low, hoisting and transporting are facilitated, the cost is reduced, the workload is reduced through the design of the disassembly-free formworks, and the flatness requirement of the stair is met.

Description

technical field [0001] The invention relates to the field of assembled concrete buildings, in particular to an assembled prefabricated composite staircase component. Background technique [0002] With the development of the prefabricated building industry, prefabricated stairs are an important horizontal force-bearing component in prefabricated buildings, and their applications are becoming more and more extensive. Most of the prefabricated stairs used in prefabricated buildings are "solid" components, which are heavy and require the use of lifting equipment such as large-tonnage tower cranes. The transportation and lifting are difficult and costly. In addition, the connection between the prefabricated stairs and the stair platform is connected by bolts, which requires high quality construction workers. In traditional cast-in-place buildings, the stairs are bound with steel bars on site, and are poured with wooden formwork, steel formwork, and aluminum formwork. The constru...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an assembled prefabricated combined staircase component, which solves the problems of heavy weight of prefabricated staircases in the prior art, difficulties in hoisting and transportation, and high technical requirements for construction personnel

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