Reinforced concrete hollow slab

Abstract

Disclosed is a reinforced-bar concrete hollow slab, which comprises a reinforced-bar concrete (1) and hollow members (2), the hollow members (2) are enclosed in the reinforced-bar concrete (1), the hollow members (2) are arranged alternatively, and cast-in-situ reinforced-bar concrete rib (3) is arranged between them, the hollow members (2) comprise an upper board (4), peripheral side panels (5), and a lower bottom (6), the upper board (4), the peripheral side panels (5), and the lower bottom (6) enclose a polyhedral hollow member, the invention is characterized in that at least a bottom rib recess (7) is arranged between the side panels (5) and the lower bottom (6), a reinforced structure (8) of the reinforced-bar concrete hollow slab is formed on the recess (7) position of the cast-in-situ concrete, a reversed T-shape rib is formed by the cast-in-situ reinforced bar concrete rib (3) together with the reinforced structure (8) on the corresponding sites, at least one of the vertical corners of the hollow member is configured to be a internal corner (9), the cast-in-situ reinforced bar concrete forms a cast-in-situ concrete reinforced structure (8) at the internal corner (9) position. The invention can be applied to cast-in-situ reinforced-bar concrete hollow slabs, storied building covers, house roofings, foundation slabs, and hollow bridges.

Description

(1) Technical field [0001] The invention relates to a reinforced concrete hollow slab. (2) Background technology [0002] At present, the cast-in-place reinforced concrete hollow slab 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 disclos...

AI Technical Summary

Problems solved by technology

However, after being applied to reinforced concrete hollow slabs, the cast-in-place concrete ribs formed between the cavity members are all rectangular cast-in-place concrete ribs, and their mechanical performance is not very reasonable. It is often necessary to increase the cross-sectional size of the cast-in-place concrete ribs. Increasing the amount of steel bars and concrete will increase the cost of reinforced concrete hollow slabs. At the same time, at the vertical corners of the cavity components, the stress on the floor is more complicated, the stress is more concentrated, and cracks are easy to occur, or even cracked and damaged. Therefore, a A new type of reinforced concrete hollow slab is urgently needed

Images