Assembled staircase for subway air shafts and method for connecting corner platforms thereof

Abstract

The invention is applicable to the field of staircases of subway air shafts, and provides an assembled staircase for the subway air shafts and a method for connecting corner platforms thereof. The assembled staircase comprises a plurality of stair components. Each stair component comprises a section of stair section plate, the upper end corner platform and the lower end corner platform, wherein the stair section plate, the upper end corner platform and the lower end corner platform are integrated, and a reinforced concrete structure is manufactured and formed in a factory. Connecting steel bars protrude and extend from the side surfaces of the corner platforms, and the lower end corner platform of each upper stair component is fixedly connected with the upper end corner platform of the corresponding lower stair component by pouring concrete on a construction site. According to the assembled staircase for subway air shafts and the method for connecting the corner platforms thereof, thestair components are prefabricated in the factory, the material consumption is more accurate, the quality control is better, and the waste of materials and construction wastes in the construction siteare reduced. On-site construction intensity is reduced, time is shortened, on-site personnel allocation is reduced, safe production is facilitated, and personal safety and health of construction personnel are guaranteed.

Description

technical field [0001] The invention belongs to the field of staircases for subway air shafts, in particular to an assembled staircase for subway air shafts and a connection method between corner platforms. Background technique [0002] The subway air shaft is usually deep and has many stairs. Nowadays, the cast-in-place method is generally used in the subway air shaft to make the stairs of the subway air shaft. The cast-in-place method, as the name suggests, is that the construction workers first bind the steel bars of the stairs, then install the formwork, then pour the concrete, and then remove the formwork after the stair maintenance reaches the design strength. This method has the following advantages: [0003] 1. Construction personnel are familiar with the operation of cast-in-place construction methods and do not need more guidance. [0004] However, the disadvantages of traditional cast-in-place are also obvious: [0005] 1. There are many processes, such as bindi...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a connection method between an assembled staircase for a subway air shaft and its corner platform, which aims to solve the problem of many procedures in the existing technology of using the cast-in-place method to manufacture subway air shaft stairs. Long time, high labor costs, and problems that endanger the personal safety and health of workers

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