Cavity component

Abstract

Disclosed is a hollow member which comprises a hollow form (1) and a bottom slab (2), the hollow formwork (1) and the bottom slab (2) are connected into an integrity, at least two hollow forms (1) on the bottom board (2) are arranged alternatively, their side surfaces and the structural bottom boards (2) constitute at least one secandary rib molding chamber (3) of cast-in-situ structure, the other outer side surfaces (4) of the hollow form (1) constitute the side casting plates of the outer main ribs or beams or walls, the inner rib's lateral surfaces or / and other side surfaces (4) are intersecting perpendicularly to the structural bottom board (2). The invention can be applied to various cast-in-situ reinforced-bar concrete or prestressed reinforced-bar concrete hollow building roofings,house roofings, foundation slabs, walls or hollow bridges.

Description

[0001] This application is a divisional application of the invention patent application with the filing date of June 2, 2003, the application number of 03137269.4, 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 so...

AI Technical Summary

Problems solved by technology

However, after this kind of cavity component is applied to the hollow floor, due to the wall of the cavity formwork and the structural bottom plate, it is easy to be damaged in the process of handling and construction, especially when it is hit or collided by various heavy objects and falling objects. Not enough, the impact resistance is poor, and there are often damaged holes, which lead to the destruction of the cavity component, which brings inconvenience to the construction, increases the cost, and affects the construction period. Therefore, it is urgent to develop a new type of cavity component.

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