Method for controlling concrete elevation by steel bar with hooked end

Abstract

The invention discloses a method for controlling concrete elevation by a steel bar with a hooked end. The method comprises a steel bar support frame and a steel bar hook, wherein the steel bar support frame is welded into an L shape by two steel bars of the same specification; and the steel bar hook is bent to 135 degrees, and is welded with the steel bar support frame. The method comprises the following concrete implementation steps that 1, the two ends of the steel bar support frame are welded with an upper row auxiliary steel bar and a lower row steel bar and are separately arranged in the structure in a way of forming a distance being 1.5m; 2, the bottom end of the steel bar hook is welded with the steel bar support frame, and the length of a part, above the upper row auxiliary steel bar, of the bent end of the steel bar hook, is equal to the thickness of a protection layer; 3, concrete is cast; and 4, the bent end of the steel bar hook is used as an elevation control point of the concrete, and concrete leveling is performed. The method provided by the invention effectively solves the problem of upper part hogging bending steel bar subsidence due to manual treading or concrete casting in the construction process of a large-size concrete floor is effectively solved; the thickness of the steel bar protection layer is ensured; the floor surface elevation is effectively controlled; the manufacturing of components is simple; and the installation is simple.

Description

technical field [0001] The invention relates to a method for controlling the elevation of concrete with a hook steel bar. Background technique [0002] In the process of building construction, the elevation control of reinforced concrete structures often relies on 50 lines, and the upper row of steel bars often sinks due to trampling or concrete pouring. Reduced, greatly reducing the load-carrying capacity of the structure. In order to avoid this situation, measure steel bars are used in the current construction process, that is, common horse stool bars or steel brackets in engineering, which are arranged between the lower steel bar and the upper negative bending steel bar to support the negative moment bar. This approach solves the problem of steel bar sinking to a certain extent, but it is difficult to control the elevation when pouring concrete on the bottom slab, and it cannot solve the problem of anti-skid on the upper steel bar surface. Contents of the invention ...

AI Technical Summary

Problems solved by technology

This approach solves the sinking problem of steel bars to a certain extent, but it is difficult to control the elevation when pouring concrete on the bottom slab, and it cannot solve the problem of anti-skid on the upper steel bar surface

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