Hollow floor slab and mounting method thereof

Abstract

The invention provides a hollow floor slab and an installation method thereof, belonging to the field of building structures. It solves the problem of poor stability and safety of existing hollow floor slabs. The hollow floor slab includes top steel bars, square inner formwork, bottom steel bars and bottom formwork. The inner formwork is provided with grouting holes, and also includes brackets. The brackets include upper rack rods and lower rack rods. The lower rack rods are bent to form spiral positioning rods. The middle part of the positioning rod forms a connecting rod, and also includes two supporting rods whose one end is connected with the two ends of the lower rod. The other end of the supporting rod is bent to connect with the two ends of the upper rod. The positioning rod is bent to form a positioning groove, and it also includes a metal tube. The metal tube includes two positioning tubes and a support tube. The top steel bar is fixed on the upper frame rod, and the connecting rod is fixed on the lower frame rod. A thread rolling hole is arranged, and an iron wire is pierced in the metal pipe, and the two ends of the iron wire in the metal pipe pass through the bottom end of the positioning pipe. This floor has high stability and good safety.

Description

Technical field [0001] The invention belongs to the technical field of building structures, and relates to a hollow floor slab and an installation method thereof. Background technique [0002] At present, the cast-in-place concrete floor slabs in construction projects, especially the large-span slabs of large public buildings, are more and more widely used in the design of filling hollow floor slabs. In the construction of the hollow floor slab, due to the thin floor thickness, the difficult concrete vibrating and the easy floating of the inner mold, it is easy to cause the quality defects such as holes, cracks and honeycomb pitted surface of the casted floor, which not only did not reduce the weight of the floor. The role of the steel, on the contrary, caused a hidden quality risk. At the same time, in the process of using the cast-in-place hollow floor technology, especially in the anti-floating process of the inner mold, the iron wire is used to pass through the bottom mold to...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the problems are as follows: 1. After the formwork is removed, a large number of iron wires and screws are exposed outside the cement floor. Even if the exposed iron wires are cut off, the ends still exist, and they

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