Concrete stairs with hoisting seats and connecting pieces

Abstract

The invention relates to a flight of concrete stairs with hoisting seats and connecting pieces. The flight of concrete stairs comprises stairs and a stair landing, wherein the stairs are composed of side plates and stair plates; the stair plates are of steel bar mesh concrete structures; the side plates are of steel bar truss concrete structures; steel bar meshes in the stair plates and steel bar trusses in the side plates are welded into a body; threaded connection pipes are pre-buried in the stairs and the side plates; profile steel is arranged in the pre-buried parts; the hoisting seats are further arranged in the side plates. The flight of concrete stairs is good in integral stress performance, high in strength, good in shock resistance, convenient to hoist and connect and high in construction speed, and is suitable for standardization large-scale production and quick modularization construction.

Description

technical field [0001] The invention relates to the field of construction, in particular to a staircase of a building. Background technique [0002] Concrete stairs are often used in construction, and existing concrete stairs are generally manufactured by cast-in-place or prefabricated methods. In the process of building construction, especially in the process of rapid modular construction of high-rise buildings, the existing concrete stairs have the following disadvantages: (1) The overall mechanical structure of the concrete stairs is poor, and the earthquake resistance is poor; (2) The steps and steps The connection method is complicated, and the connection is easily damaged. Some of them are connected by cast-in-place connection. This kind of cast-in-place connection has slow construction speed and low construction efficiency, and is not suitable for factory production. Problems such as damage and falling off, difficult alignment of connections, and easy loosening of em...

AI Technical Summary

Problems solved by technology

In the process of building construction, especially in the process of rapid modular construction of high-rise buildings, the existing concrete stairs have the following disadvantages: (1) The overall mechanical structure of the concrete stairs is poor, and the earthquake resistance is poor; (2) The steps and steps The connection method is complicated, and the connection is easily damaged. Some of them are connected by cast-in-place connection. This kind of cast-in-place connection has slow construction speed and low construction efficiency, and is not suitable for factory production. Problems such as damage and falling off, difficult alignment of connections, and easy loosening of embedded parts; (3) The structure of concrete stairs is not suitable for large-scale factory production, it is not convenient for transportation and hoisting, and it cannot be quickly modularized.

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