Cast-in-situ reinforced concrete or prestressed reinforced concrete hollow slab

Abstract

The invention discloses a field casting reinforced concrete or prestressed reinforced concrete hollow slab which comprises a reinforced concrete, a hollow matrix (1) and supporting legs (2). The hollow matrix (1) is enwrapped and contained in the field casting reinforced concrete. The hollow matrix (1) is formed by the enclosing of external walls (3) and is provided with a cavity (4). The hollow slab is characterized in that: at least one external wall (3) is the external wall of a laminated layer, a precast layer (5) in which is arranged in the internal layer of the external walls (3), the external layers of the external walls (3) are field coated layers (6), reinforcers (10) are arranged in the precast layer (5) or / and the field coated layers (6) of the external walls (3), upper external walls (3) are the external walls of the laminated layers and bottom external walls (3) are provided with the supporting legs (2), thereby being applicable to the field casting reinforced concrete or the prestressed reinforced concrete hollow slabs, floors, roofs, walls, foundation base plates and bridges and being particularly applicable to hollow girderless floors.

Description

[0001] This application is a divisional application of an invention patent application with an application date of September 2, 2004, an application number of 200410155278.2, and a title of "a hollow matrix for filling cast-in-place concrete". (1) Technical field [0002] The invention relates to a hollow slab of cast-in-place reinforced concrete or prestressed reinforced concrete. (2) Background technology [0003] At present, the cast-in-place concrete hollow floor is a widely used floor structure. The lightweight permanent tire molds filled in it include various hollow tubes and boxes, and the boxes are hollow or solid. For example, the patent No. ZL99249798.1, which the applicant applied for on November 29, 1999, is a utility model patent named "fiber-reinforced thin-walled member for reinforced concrete filling", which discloses a thin-walled formwork member, including an upper plate, The surrounding side walls, the lower bottom, and the upper plate, the surrounding sid...

AI Technical Summary

Problems solved by technology

But when this kind of hollow carcass is applied to the floor construction, the hollow carcass cannot be accurately arranged in the middle layer of the floor, which affects the construction quality of the floor

For this reason, the patent No. is ZL01215092.4, and the name is "building component" utility model patent. The disclosed building component is a polyhedron, which can be hollow or solid. In order to ensure that this building component is applied to the floor It is arranged in the middle layer of the floor, and the outer wall of the polyhedron is provided with protruding legs, so that when the floor is poured, the legs can ensure that the hollow multi-faceted main cavity is just at the middle layer of the floor. , so as to better solve the above problems, but the production of this kind of building components is inconvenient, the production efficiency is low, it is not convenient for assembly line production, and the corresponding cost is high

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