PC stairs

Abstract

The invention discloses PC stairs. The PC stairs comprise a PC stair body, a wall body, a first supporting frame, a second supporting frame and a fixing base; as the first supporting frame, the secondsupporting frame and the PC stair body are arranged, the safety is improved; the first supporting frame and the second supporting frame are rapidly fixed to the PC stair body by using mounting plates, mounting screw holes and bolts so that the stairs are convenient to adjust and assemble; as a reserved threaded rod and a connecting box are arranged on the surface of the wall body, the integral device and the wall body are rapidly erected, the reserved threaded rod is fixed to the interior of the connecting box by using a fixing plate and a fixing nut so that the operation is made convenient for a user; as a stair inserting hole in one end of the PC stair body is connected with a bolt, the PC stair body is connected with the wall body through the connecting box so that the detaching and assembling are also made convenient while the stability is improved; and as a first telescopic frame, a second telescopic frame, an oil tank and a small oil cylinder are arranged, the integral device has an effect of adjusting the height.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a PC staircase. Background technique [0002] In construction engineering, the construction of traditional temporary buildings is carried out at the same time as the working floor. The stair support needs to be assembled on site, and the steel bars are bound and welded on site. The entire construction period is long. There is a height difference between the concrete pouring of the stairs and the concrete operation of the working floor, and the construction operation is difficult. Large, with many interspersed processes and cross operations, it is difficult to control the construction waste generated by on-site assembly, it is difficult to guarantee the quality of concrete molding, and the amount of later repairs is large. [0003] Traditional PC stairs are often supported on the cast-in-place concrete components of the main structure, and the construction of the connection...

AI Technical Summary

Problems solved by technology

[0002] In construction engineering, the construction of traditional temporary buildings is carried out at the same time as the working floor. The stair support needs to be assembled on site, and the steel bars are bound and welded on site. The entire construction period is long. There is a height difference between the concrete pouring of the stairs and the concrete operation of the working floor, and the construction operation is difficult. Large, with many interspersed processes and cross operations, it is difficult to control the construction waste generated by on-site assembly, it is difficult to guarantee the quality of concrete molding, and the amount of later repairs is large

[0003] Traditional PC stairs are often supported on the cast-in-place concrete components of the main structure, and the construction of the connection nodes at the stair supports is often complicated. When the cast-in-place concrete of the supports has not been cured, the stairs as important vertical passages will not be able to Installation and use greatly reduce the construction efficiency. At the same time, once it is solidified and formed, it is difficult to dismantle and use it in other places. Therefore, this invention proposes a PC mouthpiece to solve the existing problems.

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