Cavity member for hollow slab

Abstract

Disclosed is a cavity component, which comprises a cavity shuttering (1) and a base plate (2). The cavity shuttering (1) is integrated with the base plate (2), on which at least two cavity shutterings (1) is arranged with intervals. One side face of the cavity shuttering (1) and the base plate (2) compose at least one inner rib die cavity (3) with on-site casting structure, other side faces of the cavity shuttering (1) compose on-site casting structure outer rib or side die plate of beam or wall. Said cavity shuttering (1) has corrugated walls, as a result, the cavity shuttering increases contact surfaces with the on-site casting concrete when being applied to on-site casting concrete hollow floor, they are firmly fixed to each other. The invention has the advantages of easy making, low costs and so on. It is suitable for floor, roof, soleplate, wall or empty bridge, especially for mushroom floor.

Description

(1) Technical field [0001] The present invention relates to a cavity member for a hollow plate. (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. de...

AI Technical Summary

Problems solved by technology

However, after this kind of cavity component is applied to the hollow floor, the cavity formwork and the cast-in-place concrete are embedded with each other, and the void phenomenon often occurs due to the shrinkage of the cast-in-place concrete after setting and hardening. The solidity is not strong, and the more important thing is that the integrity of the cavity components is not good, and it is easy to be shelled and separated during transportation, installation, and construction. Therefore, it is urgent to develop a new type of cavity components for hollow slabs.

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