Cast-in-place concrete hollow core slab

Abstract

The present invention relates to a cast-in-situ concrete hollow plate. It includes reinforced concrete and form members. Said form members are contained in the reinforced concrete, and are alternatively arranged, and between them a cast-in-situ reinforced concrete rib is set, its upper portion is cast-in-situ reinforced concrete upper plate and its lower portion is cast-in-situ reinforced concrete lower plate. Said form member includes upper plate and peripheral side wall, said upper plate and peripheral side wall are connected together and formed into an open basin-shaped member. It is characterized by that on the upper plate of said basin-shaped member a top window is cut, and said top window can be used for making the concrete construction operation in the lower cavity of said upper plate, and at least one peripheral side wall is a metal plate. Said form member can be used for in-situ casting reinforced concrete or prestressed reinforced concrete hollow floor, roof, wall body, foundation bedplate and open-web bridge, etc.

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-core slabs as cast-in-place concrete hollow-core slabs. This cast-in-place concrete hollow-core slab 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 is the integrity poor, which is not conducive to earthquake resistance, but also cracks and water seepage often occur, causing great inconvenience and psychological pressure to the residents. In order to solve the above problems, many buildings adopt the method of cast-in-place concrete floor (hollow, solid). Although the cast-in-place concrete floor has solved the problems of earthquake resistance and cracking, a large number of formwork must be used during construction, which ...

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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