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 at least a small hole for escaping air during concrete casting is arranged on the bottom outer wall (4) of the hollow carcassa (2). The invention can be applied to cast-in-situs reinforced concrete or prestressed reinforcement concrete's hollow boards, storied building covers, 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 the patent No. ZL00203695.9 applied by Liang Jun, Shijiazhuang City, Hebei Province on February 23, 2000, and the name is called "combined concrete hidden rib floor cover plate" utility model patent, which discloses a fo...

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, Chen Shaojun of Foshan City, Guangdong Province applied for the patent number ZL01215092.4 on February 2, 2001, and the utility model patent named "building component". The building component is a polyhedron, which can be hollow or solid. Yes, in order to ensure that this kind of building component is arranged in the middle layer of the floor when it is applied to the floor, a raised support foot is provided on the outer wall of the polyhedron, so that when the floor is poured, the support foot can ensure the hollow multi-sided The cavity of the main body is just located in the middle layer of the floor, thus better solving the above problems, but this kind of floor is easy to form air pockets or water accumulation at the bottom of the building components, which affects the compactness of the concrete structure in the floor, so , the development of a new type of cast-in-place concrete hollow slab is urgently needed

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