Seismic Prefabricated Staircase Structure

Abstract

The invention discloses an anti-seismic prefabricated stair structure, which comprises a lower platform, a stair section, an upper platform and a reinforcement structure used for support in the stair; The turning points between the upper platforms are provided with a number of filling cavities with angles not greater than 90°. Corresponding to the filling cavities, a spring steel plate for shear resistance is provided in the stairs, and a spring steel plate for positioning and limiting the spring steel plate is provided corresponding to the spring steel plate. A fixing mechanism with a fixed position, and elastic fillers are also filled in the filling cavity. In the anti-seismic prefabricated staircase structure of the present invention, flexible filling is provided between the steps of the staircase, and at the same time, a frame structure with a shock-absorbing function is arranged inside to increase the shear resistance of the staircase to a certain extent.

Description

technical field [0001] The invention relates to the technical field of building components, in particular to an anti-seismic prefabricated staircase structure. Background technique [0002] Stairs are the main means of transportation connecting floors. The basic function of stairs is to go up and down floors safely. In addition, high-rise and super high-rise buildings are the main direction of modern building development. On the premise of ensuring quality, improving construction efficiency is an important indicator of modern construction technology. Existing stairs are mainly divided into wooden stairs, steel stairs and cast-in-place concrete stairs. Wooden stairs are not fireproof, so the scope of application is limited. Steel stairs are fast in construction, but have poor sound insulation effects, while cast-in-place concrete stairs have good overall rigidity, The sound insulation effect is good, and it is suitable for buildings with special requirements and high earthqu...

AI Technical Summary

Problems solved by technology

Existing stairs are mainly divided into wooden stairs, steel stairs and cast-in-place concrete stairs. Wooden stairs are not fireproof, so the scope of application is limited. Steel stairs are fast in construction, but have poor sound insulation effects, while cast-in-place concrete stairs have good overall rigidity, The sound insulation effect is good, and it is suitable for buildings with special requirements and high earthquake resistance requirements, but there are weaknesses that cannot be ignored, such as cumbersome formwork support and heavy wet work. Therefore, prefabricated stairs have become the development direction of stairs in the construction industry

[0003] Conventional prefabricated stairs have the defect that the strength of the stair slab is relatively poor. When there is vibration between the stair sections during an earthquake, due to the rigid fit between the reinforcement room and the floor slab, the shear resistance and reset ability are relatively weak, resulting in insufficient internal strength of the stairs.

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