Precise positioning and fixing device for embedded steel bars in cast-in-place bottom plate of fabricated channel side wall and construction method

Abstract

The invention relates to a precise positioning and fixing device for embedded steel bars in a cast-in-place bottom plate of a fabricated channel side wall. The precise positioning and fixing device comprises a lower-layer horizontal positioning and fixing frame, a middle-layer horizontal positioning and fixing frame, an upper-layer horizontal positioning and fixing verification sleeve plate and a plurality of vertical rods. The lower-layer horizontal positioning and fixing frame comprises two fixing frame long rods, a positioning toothed plate strip and a plurality of transverse rods; the middle-layer horizontal positioning and fixing frame and the lower-layer horizontal positioning and fixing frame are the same in structure; the vertical rods are arranged between the middle-layer horizontal positioning and fixing frame and the lower-layer horizontal positioning and fixing frame; and the upper-layer horizontal positioning and fixing verification sleeve plate is correspondingly arranged above the middle-layer horizontal positioning and fixing frame, and the top ends of the vertical rods exceed the upper-layer horizontal positioning and fixing verification sleeve plate. The invention further relates to a construction method of the precise positioning and fixing device for the embedded steel bars in the cast-in-place bottom plate of the fabricated channel side wall. The problems that in the construction process of cast-in-place bottom plate pre-embedded vertical steel bars, the positioning deviation is large, binding is loose, and fixing is not firm can be solved.

Description

technical field [0001] The invention relates to the technical field of water conservancy and building construction, in particular to a precision positioning and fixing device and construction method for pre-embedded steel bars in the cast-in-place bottom plate of the side wall of an assembled trench. Background technique [0002] The existing prefabricated trench adopts prefabricated and cast-in-place hybrid prefabricated structure and construction method. Reinforced concrete side walls are prefabricated in the factory and reinforced concrete for the cast-in-place floor is carried out at the construction site, and then prefabricated on the poured concrete floor. Assembly and installation of side walls, assembled into reinforced concrete trenches. [0003] During the construction of the prefabricated trench, there is a structural connection problem between the steel bars between the cast-in-place base plate and the fabricated side wall, which requires the installation of pre-...

AI Technical Summary

Problems solved by technology

[0011] In order to solve the problems that the pre-embedded vertical steel bars of the existing cast-in-place floor are prone to large positioning deviation, loose binding, weak fixation and easy deformation during the construction process, the present invention provides a cast-in-place floor for the side wall of the assembled trench Precise positioning and fixing device and construction method of pre-embedded steel bars

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