Cast-in-situ reinforced concrete slab

Abstract

Disclosed is a cast-in-situ reinforced-bar concrete slab, which comprises a reinforced-bar concrete (1) and polyhedral solid lightweight shuttering members (2), the shuttering members (2) are enclosed in the reinforced-bar concrete (1), and are arranged alternatively, a cast-in-situ reinforced-bar concrete rib (3) is arranged between them, characterized in that least one of the vertical corners of the shuttering members (2) is configured to be a vertical internal corner (4), a reinforcing structure (5) is formed on the at the internal corner (4) position through cast-in-situ concrete. The invention can be applied to cast-in-situ reinforced concrete or prestressed reinforcement concrete's storied-building roofings, house roofings, walls, foundation bedplates and bridges, especially for flat slabs.

Description

(1) Technical field [0001] The invention relates to a cast-in-place reinforced concrete slab. (2) Background technology [0002] At present, the cast-in-place reinforced concrete slab is a widely used floor structure, and the lightweight permanent tire mold filled therein has various hollow tubes and boxes, and the boxes are hollow or solid. For example, the patent No. ZL00203695.9 applied by Liang Jun, Shijiazhuang City, Hebei Province on February 23, 2000, is called the utility model patent of "combined concrete concealed rib floor cover", and a formwork member is disclosed in its specification sheet. It can be solid or hollow, and its shape can be made into rectangle, circle, polygon and other shapes according to design requirements. Another example is the patent No. ZL01206422.X invented and applied by Guiyang Ma Kejian et al., and the name is the utility model patent of "built-in formwork for fasting sandwich panels". The built-in formwork is solid, and the formwork is...

AI Technical Summary

Problems solved by technology

The above-mentioned solid cast-in-place concrete light-weight tire mold members are used in the cast-in-place concrete floor as both a formwork member and a prefabricated filling member, and have the advantages of simple structure, high strength, excellent deformation resistance, and vibration resistance. It is easy to manufacture and low in cost. However, at the vertical corners of this lightweight tire formwork member, the stress on the floor is relatively complicated, the stress is concentrated, and cracks are easy to occur, or even cracked and damaged. Therefore, a new type of tire mold is developed. Cast-in-place reinforced concrete slabs are in urgent need

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