Cavity member

Abstract

Disclosed is a cavity component, which comprises a cavity shuttering (1), and a base plate (2). The cavity shuttering (1) is integrated on the base plate (2), on the base plate (2), at least two cavity shuttering (1) are alternately arranged. One side face of the cavity shuttering (1) and the base plate (2) compose at least one on-site casting structure secondary rib die cavity (3), while the other outer side faces compose the side die plate of on-site casting structure main rib, beam or wall. And at least one side around the top of the cavity shuttering (1) is arranged with a chamfer angle (5). After the floor structure is applied with the cavity component, an on-site casting concrete reinforced rib can be formed on the chamfer angle (5), as a result, the stress concentration can be eliminated effectively, cracks can be prevented, and the floor can bear concentrated loads. The invention has the advantages of simple structure, high strength, easily making, low costs and so on, is suitable for hollow floor, roof, soleplate, wall and empty bridge with on-site casting reinforced concrete or prestressed reinforced concrete.

Description

(1) Technical field [0001] The present invention relates to a cavity member. (2) Background technology [0002] At present, most buildings with brick-concrete structure and reinforced concrete structure use prefabricated hollow slabs as floor slabs, which have the advantages of fast construction speed and low cost. However, because there is no firm connection between two adjacent prefabricated hollow slabs, only cement mortar is used to fill the joints, so the integrity is poor, which is not conducive to earthquake resistance, and cracks and water seepage often occur in the gaps. In order to solve the above problems, many buildings adopt the method of cast-in-place concrete floor slabs (solid and hollow). Although the problems of earthquake resistance and cracking have been solved, a large number of templates are used during construction, which not only increases the cost, but also slows down the construction speed and prolongs the construction period. deadline. Applicatio...

AI Technical Summary

Problems solved by technology

But after this cavity component is applied to the floor, at the corner of the cast-in-place concrete rib between the cast-in-place concrete upper plate on the cavity formwork top and the cavity formwork, the stress of the floor is more complicated, and the stress is relatively large. Concentrated, prone to cracks, even cracking damage

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