Cast-in-situ concrete hollow slab

Abstract

The invention relates to a cast-in-situ concrete hollow floor slab, which comprises reinforced concrete (1) and cavity die casing components (2), the cavity die casing components (2) are included in the reinforced concrete (1), cast-in-situ reinforced concrete ribs (3) are adopted between the cavity die casing components (2), the cavity die casing components (2) comprise upper plates (4), peripheral side walls (5) and lower plates (6), the upper plates (4), the peripheral side walls (5) and the lower plates (6) are enclosed into the closed cavity die casing components (2), the invention is characterized in that the upper plates (4), the peripheral side walls (5) and the lower plates (6) of the cavity die casing components (2) are composed of components (7), each component (7) is composed of at least a prefabricated plate (8) and at least a cast-in-situ plate (9) of the bond prefabricated plate (8), the upper surfaces of the upper plates (4) are included in the cast-in-situ concrete hollow floor slab or the lower surfaces of the lower plates (6) are included in the cast-in-situ concrete hollow floor slab or the upper surfaces of the upper plates (4) and the lower surfaces of the lower plates (6) are included in the cast-in-situ concrete hollow floor slab, and pre-stressed tendons (33) are included in the cast-in-situ concrete hollow floor slab. Thereby, the invention is suitable for the use of various cast-in-situ reinforced concrete or pre-stressed reinforced concrete hollow floor slabs, roof covers, wall bodies, foundation bottom plates and hollow bridges, in particular suitable for the use of hollow beamless floor slabs.

Description

[0001] This application is a divisional application of an invention patent application with an application date of June 6, 2005, an application number of 200510074455.9, and a title of "a cast-in-place concrete hollow slab". (1) Technical field [0002] The invention relates to a cast-in-place concrete hollow slab. (2) Background technology [0003] At present, most of the buildings with brick-concrete structure and frame structure use prefabricated hollow-core slabs as floor slabs. This kind of floor slab has the advantages of fast construction speed and low cost, but because there is no firm connection between two adjacent prefabricated hollow-core slabs , Only cement mortar is used to fill the gaps, so not only the integrity is poor, which is not conducive to earthquake resistance, but also cracks and water seepage often occur in the gaps, causing great inconvenience and psychological pressure to the residents. In order to solve the above problems, many buildings have ado...

AI Technical Summary

Problems solved by technology

However, when the formwork components in this floor slab are produced, it is inconvenient to make, the production efficiency is low, it is not convenient for assembly line production, the production cost is high, and the construction cost of the corresponding cast-in-place concrete hollow slab is high. Therefore, a new type of in-situ concrete is developed. Concrete hollow slabs are urgently needed

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