Cast-in-situ concrete hollow slab

Abstract

A cast-in-place concrete hollow slab comprises a cast-in-place concrete (54) and core modules (55); the core modules (55) are wrapped in the cast-in-place concrete (54), the core modules (55) consist of a basin-shaped element (1) and a precast floor plate (15), and the basin-shaped element (1) consists of a basin floor plate (4) and a basin side wall (5), the basin side wall (5) is provided with a vertical groove (2), the basin-shaped element (1) is also provided with a raising edge (3), the core modules (55) are mutually and closely leaned against or alternately arranged, cast-in-place concrete ribs (52) are arranged between the core modules, and the cast-in-place concrete forms a cast-in-place concrete bar (53) at the groove (2) part. The hollow slab is characterized in that the basin-shaped element (1) is arranged on the precast floor plate (15), a hole tube (27) is arranged at the middle of the basin-shaped element (1) and a cast-in-place concrete frusta or pole (56) is formed on the hole tube (27) part of the cast-in-place concrete. The hollow slab is applicable to the cast-in-place reinforcing steel bar concrete or prestressed reinforcing steel bar concrete hollow floor cover, roof, wall, foundation slab and bridge, in particular to the use of the hollow floor cover.

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, and the lightweight permanent tire mold filled in it includes hollow tubes and cavity formwork components. 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 application number applied by the applicant on November 23, 2001 is 01140106.0, the publication number is CN1356442, and the name is called "a kind of cavity structure formwork for cast-in-place reinforced concrete floor slab" pa...

AI Technical Summary

Problems solved by technology

However, when making this type of cavity mold shell, the overall molding is troublesome, labor-intensive and time-consuming, and the cost is high.

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