Cast-in-situ concrete hollow slab

Abstract

The invention relates to a cast-in-place concrete hollow slab, which comprises a reinforced concrete (1) and a formwork component (2) which is contained by the reinforced concrete (1). The formwork components (2) comprises a top plate (3), a peripheral side wall (4), wherein, at least one of the top plate (3) and the peripheral side wall (4) is provided with a soft layer (5); cast-in-place reinforced concrete grids (6) formed by the reinforced concrete (1) are arranged among the formwork components (2). The invention is characterized in that the top plate (3) and the peripheral side wall (4) surrounds each other to form the formwork components; the soft layer (5) is superposed at the outer surface layers of the top plate (3) and the peripheral side wall (4); the top plate (3) or the peripheral side wall (4) is a hard layer; the outer surface of the soft layer (5) is provided with a reinforced layer (9) to prevent the soft layer from being damaged. The invention is applicable to the hollow floors, roofs, wall bodies, foundation slabs and open-web bridges of cast-in-place reinforced concrete or prestressed reinforced concrete.

Description

[0001] This application is a divisional application of an invention patent application with an application date of November 10, 2005, an application number of 200510119895.1, 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, the cast-in-situ concrete hollow floor is a widely used floor structure. The soft permanent tire mold filled therein has 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, the upper plate, the surrounding side walls, and the lower bottom form a polyhedral cavity, and the upper plate, t...

AI Technical Summary

Problems solved by technology

However, after this type of formwork component is applied to the floor, it needs to occupy a certain space when the pipeline is embedded in the floor, thus greatly increasing the thickness of the floor and reducing the economic performance of the floor.

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