Cavity member for hollow concrete slab

Abstract

A hollow component used for hollow reinforced concrete consists of a substrate, at least one vertical reinforced concrete wall on the said substrate. At least two downward closed over-linked boxes are arranged on the substrate too and spaced each other to form lateral mould cavities. Some lateral connecting mould cavities are formed on the vertical wall to connect with the said lateral mould cavities on the substrate. Some suspended edges are formed on the outside of the substrate and / or the over-linked boxes. It has good mechanical performance and simple structure, saves materials, costs low, and can be constructed easily. It can be used for hollow board of reinforced concrete cast in site or pre-stressed concrete, roof, substrate, wall or hollow bridge beam.

Description

(1) Technical field [0001] The invention relates to a cavity component for a concrete hollow slab. (2) Background technology [0002] The floor slab is assembled with ribbed reinforced concrete prefabricated components, which can withstand two-way loads, does not require on-site formwork, and is low in cost, easy to hoist and transport. The prefabricated component with ribs comprises a concrete bottom plate and at least one concrete vertical vertical plate. The concrete vertical vertical plate stands on the concrete bottom plate and is connected with the concrete bottom plate as a whole. Usually the length of the concrete vertical vertical slab of this prefabricated component is the same as the length of the concrete bottom slab. When this prefabricated component is assembled to form a floor slab bearing two-way loads, the cast-in-place concrete cannot pass through the vertical slab and cannot form a connected vertical vertical slab with the concrete. At the same time, in t...

AI Technical Summary

Problems solved by technology

Usually the length of the concrete vertical vertical slab of this prefabricated component is the same as the length of the concrete bottom slab. When this prefabricated component is assembled to form a floor slab bearing two-way loads, the cast-in-place concrete cannot pass through the vertical slab and cannot form a connected vertical vertical slab with the concrete. At the same time, in the direction perpendicular to the vertical slab, various pipeline layouts need to be drilled and threaded on site, which not only wastes concrete materials, but also wastes man-hours. Moreover, after the cast-in-place concrete, the assembled floor is solid , Concrete consumes a lot of material, and the weight of the floor slab is heavy, so it is not suitable for large-span pouring. Therefore, it is urgently needed to develop a new type of cavity component for concrete hollow slabs.

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