Cast-in-situ concrete hollow board

Abstract

Disclosed is a cast-in-situ concrete hollow slab, which comprises a reinforced-bar concrete (1) and hollow blank members (2), the hollow blank members (2) are enclosed in the reinforced-bar concrete (1), the hollow tire body (2) is provided with a bracing strut (3), the outer wall (4) encloses the hollow tire body (2) formed with a cavity (5), cast-in-situ reinforced bar concrete ribs (6) formed by the reinforced-bar concrete (1) are disposed between the hollow tire bodies (2), characterized in that the hollow carcass (1) or / and bracing strut (2) is provided with a fixed or split anti-floating and positioning member (7). The invention can be applied to cast-in-situ reinforced concrete or prestressed reinforcement concrete's hollow storied-building roofings, house roofings, walls, foundation bedplates and bridges, especially for hollow flat slabs.

Description

(1) Technical field [0001] The invention relates to a cast-in-place concrete hollow slab. (2) Background technology [0002] 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 side walls and the lower bottom form a polyhedral cavity. Another example is that the patent No. is ZL00203695.9, and the name is called "combined concrete hidden rib floor slab" utility model patent, which discloses a formwork member in its specification, which can be solid or hollow, and its sh...

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 number is ZL01215092.4, and the utility model patent titled "Building Components" discloses a building component that is a polyhedron, which can be hollow or solid. 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. However, the positioning of this building component is inconvenient during construction and layout, and it is prone to misalignment, which affects the construction quality of the hollow floor and affects the construction efficiency. Therefore, a new type of existing Concrete hollow slabs are urgently needed

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