Hollow cavity member

Abstract

A cavity component includes a cavity mould shell (1) and a base plate (2) which are connected to a whole, at least two cavity mould shells are arranged interphasely on the base plate (2), whose side faces are constructed with the base plate (2) to at least one cast-in-situ construction secondary rib mould cavity (3), other side faces of the cavity mould shells (1) are constructed to side template of wall or beam or cast-in-situ construction secondary rib, characterized in that chamfering edges (5) are arranged on at least one side around upper of the cavity mould shell (1), at least one chamfering edges (5) are arranged in the cast-in-situ construction secondary rib mould cavity (3). The cavity component is adapted to use for hollow bridge, wall body, basic slab, room cover and hollow building cover of various of reinforced concrete cast-in-situ or prestressed reinforced concrete, especially use for the hollow building cover without beam.

Description

[0001] This application is a divisional application of the invention patent application with the filing date of June 26, 2003, the application number of 03149389.0, and the title of "A Cavity Member". (1) Technical field [0002] The present invention relates to a cavity member. (2) Background technology [0003] 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 s...

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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