Cast-in-situ cavity floor adopting steel net cages with ribs

Abstract

The invention provides a cast-in-situ cavity floor adopting steel net cages with ribs. The cast-in-situ cavity floor consists of main beams, rib beams, upper flange slabs, lower flange slabs, pillar and beam structural platforms and the steel net cages with ribs, wherein the pillar and beam structural platforms are concealed platforms, or visual platforms or conical platforms; steel net bodies of the steel net cages with the ribs are poured in concrete of the lower flange slabs in situ; the steel net cages with the ribs consist of cage nets, cage end nets and support nets; the cage nets, the cage end nets and the support nets are all made from pure metal materials; the steel net bodies comprise steel plate expansion net holes, V-shaped ribs and turning connecting plates; the expansion net holes in the two sides of the turning connecting plates are not in the same direction; the support nets are steel net bodies or steel rib net bodies; and the bottoms of the steel net cages with the ribs are organically combined with concrete mortar into the lower flange sheets of the cast-in-situ cavity floor. The cast-in-situ cavity floor is poured by utilizing the steel net cages with the ribs, the steel net cages with the ribs are directly poured in the concrete on the edges of cavities, and defects existing in the existing hollow floor technology are effectively overcome.

Description

technical field [0001] The invention relates to a technology of a cast-in-place reinforced concrete cavity floor, in particular to a technology of a cavity floor cast-in-place with a ribbed steel mesh. Background technique [0002] At present, in the field of cast-in-place reinforced concrete hollow floor technology, a fully sealed filling body component is usually used to form a hollow floor, such as the ZL98231113.3 concrete thin-walled cylinder component declared by the inventor, which is made into a sealed cylindrical filling body. In order to realize the cast-in-place hollow floor, a tubular hollow filling body is provided, which solves the technical problem of non-centering hole formation in the cast-in-place hollow floor. However, due to the sealed tubular hollow filling body, there are defects such as difficult fixing, high buoyancy, high density and heavy weight, inconvenient production, transportation and on-site construction, low evacuation rate, and inability to ...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is a cavity floor that is cast-in-place with ribbed steel mesh, fully utilizes the film effect and surface tension of cast-in-place concrete, and casts on the outer edge of the ribbed steel mesh and the end mesh. Concrete penetrates into the inner surface of the steel mesh body, forming a convex cement mortar pile group to hold the steel mesh body together to resist cracking and noise reduction; the development and production efficiency is high, the composite with concrete is good, and isolation and fixation are eliminated, and anti-corrosion is eliminated. cracked steel wire mesh, improve quality, reduce construction auxiliary costs, convenient transportation and construction, no buoyancy, inhibit the generation of building cracks, meet design requirements, ensure project quality, and solve the problem of the entire ribbed steel mesh. The support nets are all pure mesh metal materials, which are beneficial to the realization of building energy-saving integration and the multi-functional ribbed steel mesh hollowing necessary for the floor; the ribbed steel mesh hollowing is used to realize the new technology of cast-in-place cavity floors, using The unsealed ribbed steel mesh can replace the existing fully sealed hollow filling body or polystyrene foam solid filling body, and the steel mesh filling body supported by various plates will be transformed and upgraded to optimize the existing cast-in-place cavity building The hole-forming technology of the cover overcomes the defect that any filling body in the hole-forming technology of the existing cavity floor cannot work together with the floor to bear the force

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