Reinforced concrete hollow slab

Abstract

Disclosed is a reinforced-bar concrete hollow slab, which comprises a reinforced-bar concrete (1) and hollow shuttering members (2), the hollow shuttering member (2) are enclosed in the reinforced-bar concrete (1), the hollow shuttering members (2) are arranged alternatively, a cast-in-situ reinforced-bar concrete rib (3) is arranged between them, the hollow shuttering 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 shuttering member (2), the lower bottom (6) projects from at least one of the peripheral side panels (5) to form a cantilever slab (7), the floor of the lower bottom (6) is aligned with the floor of the cast-in-situ reinforced-bar hollow slab, characterized in that at least a stiffening rod (8) is arranged in the hollow shuttering member (2). As a result, the reinforced-bar concrete hollow slab has the advantages of good mechanic property, convenient construction work, and low construction cost. The invention can be applied to cast-in-situ reinforced-bar concrete hollow slabs, storied building covers, house roofings, walls, foundation bedplates 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, there is no reinforcing structure in this cavity formwork member, so the overall strength and rigidity of the cavity formwork member are relatively poor, and the phenomenon of damage to the cavity formwork member is prone to occur. In the cast-in-place reinforced concrete hollow slab, it cannot Participate well in the force bearing and transmission of reinforced concrete hollow slabs

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