Controller capable of controlling thickness of protecting layer of bar concrete cast-in-situ plate and thickness of bar concrete cast-in-situ plate

Abstract

The invention relates to a controller capable of accurately controlling the thickness of the hogging moment steel bar protecting layer of a steel bar concrete cast-in-situ plate and the thickness of the steel bar concrete cast-in-situ plate, which comprises three three-way stand bars and a vertical column, wherein the vertical column is connected with the three-way stand bars; the lower part of the vertical column is provided with an annular bracket; the annular bracket is articulated with the three-way stand bars; three surfaces of the upper part of the vertical column are square, and one surface of the upper part of the vertical column is circular; the upper part of the vertical column is provided with a cast-in-situ plate thickness control hole and an internal thread locking control hole vertically communicated with the cast-in-situ plate thickness control hole; a compensation rod and a locking extraction bolt screwed with the locking control hole are arranged in the internal thread locking control hole; a cast-in-situ plate thickness ruler marking bolt penetrating through the cast-in-situ plate thickness control hole is arranged on the vertical column, and two hogging moment steel bar locking claw rods are linked with the cast-in-situ plate thickness ruler marking bolt; and seal plugs are arranged in both sides of the cast-in-situ plate thickness control hole. The invention has wide application range and is particularly suitable for constructing various steel bar concrete cast-in-situ plates and large-volume steel bar concrete foundation bottom plates or some large-scale equipment foundations and high-thickness steel bar concrete cast-in-situ plates.

Description

Negative Moment Reinforcement Protective Layer Thickness and Slab Thickness Controller for Reinforced Concrete Cast-in-place Slabs technical field The invention relates to a thickness controller, in particular to a controller capable of accurately controlling the thickness of the protective layer of negative bending moment reinforcement of reinforced concrete cast-in-place slabs and the thickness of cast-in-place slabs. Background technique At present, the control of the protective layer of the upper reinforcement (negative moment reinforcement) of the reinforced concrete cast-in-place slab and the control of the thickness of the cast-in-place slab have always been a major problem that is difficult to solve in construction. According to the current construction measures are basically as follows: 1. Control of the upper layer of steel mesh 1. For the reinforced concrete cast-in-place slab, a steel bar stool is set between the upper reinforcement and the bottom of the cas...

AI Technical Summary

Problems solved by technology

It is mainly reflected in two aspects: first, the uneven thickness of the upper reinforcement protective layer on the floor is too small or too large

The result is: a. No matter which method is used, it is a waste of resources caused by one-time investment; b. The load of the building is increased; c. The impermeability of reinforced concrete is reduced

Images