Cast-in-situs concrete hollow board

Abstract

A hollow plate of cast-in-situ concrete is composed of reinforced concrete(1), mold-shell member(2), cast-in-situ reinforced concrete rib(3), cast-in-situ reinforced concrete top plate(4), cast-in-situ reinforced concrete bottom plate(5), top plate(6), peripheral side walls(7), scuttle(10), and flexible blind flange(9). Said mold shell member is arranged in said reinforced concrete, which is set spaced between said cast-in-situ reinforced concrete ribs(3) with cast-in-situ reinforced concrete top plate(4) and cast-in-situ reinforced concrete bottom plate(5), top plate(6) and peripheral side walls(7) are enclosed into an open basin-shaped member, whose top plate(6) is arranged with said scuttle, said flexible blind flange(9) is matched with said scuttle, said flexible blind flange(9) can be telescopic closed or used to open scuttle. It can be used for various hollow and beamless building roofs of cast-in-situ reinforced concrete or pre-stressed reinforced concrete, basic baseboard, wall and bridges.

Description

(1) Technical field [0001] The invention relates to a cast-in-place concrete hollow slab. (2) Background technology [0002] At present, most buildings with brick-concrete structure and frame structure use prefabricated hollow slabs as cast-in-place concrete hollow slabs. This kind of cast-in-place concrete hollow slabs has the advantages of fast construction speed and low cost. There is no firm connection between the boards, and only cement mortar is used to fill the gaps. Therefore, not only the integrity is poor, which is not conducive to earthquake resistance, but also cracks in the gaps and water seepage often occur, causing great inconvenience and psychological pressure to the residents. In order to solve the above problems, many buildings have adopted the method of cast-in-place concrete floor slabs (hollow, solid). Although the cast-in-place concrete floor slab solves the problems of earthquake resistance and cracking, a large number of templates are used during con...

AI Technical Summary

Problems solved by technology

However, the lower floor of this cast-in-place concrete hollow slab is a prefabricated thin plate, and there are joints between them, so the integrity is poor. The construction is inconvenient, the cast-in-place concrete is not dense, and problems such as honeycomb pits are prone to occur. Therefore, it is urgently needed to develop a new type of cast-in-place concrete hollow slab.

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