Hollow member

Abstract

The invention discloses a hollow member comprising an upper plate (1), a surrounding side wall (2) and a lower bottom (3), wherein a polyhedral hollow member is surrounded by the upper plate (1), the surrounding side wall (2) and the lower bottom (3), and reinforcements (5) are arranged in the upper plate (1), the surrounding side wall (2) and the lower bottom (3). The hollow member is characterized by being provided with reinforcing members (4) which are prefabricated reinforcing ribs or reinforcing ribbed plates; and the prefabricated reinforcing ribs or reinforcing ribbed plates are superimposed and fixed on wet ground paste of the hollow member and are hardened into a whole. The hollow member is made by a method as follows: the mixing of cement mortar: a layer of cement mortar, a layer of fiber gridding cloth (or steel wire net) and a layer of sandwich open hollow member of the cement mortar are made in a mould, wherein the sandwich open hollow member is surrounded by the upper plate (1) and the surrounding side wall (2); before hardening and condensation, the prefabricated reinforcing ribs (4) or the prefabricated reinforcing ribbed plates (4) are connected with the open hollow member; the reinforcements (5) of the fiber gridding cloth or a steel wire net extend out of the surrounding side wall (2) on an opening; the lower bottom (3) of the cement mortar of the steel wire net is made in the mould of the lower bottom; the open edge of the open hollow member not condensed or hardened is connected with the lower bottom (3); meanwhile, the reinforcements (5) of the extended fiber gridding cloth or the steel wire net are anchored in the lower bottom (3); and after being condensed and hardened, the open hollow member is maintained to a specified age.

Description

[0001] This application is a divisional application of the invention patent application with the filing date of October 21, 2003, the application number of 2003101011664, 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, the cast-in-place concrete hollow floor 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, the upper plate, the surrounding side walls, and the lower bottom form a polyhedral cavity, and the upper plate, the surrounding side walls...

AI Technical Summary

Problems solved by technology

However, there is no reinforcing structure in the cavity formwork member, so the overall strength and rigidity of the cavity formwork member are relatively poor, and the cavity formwork member is prone to damage. After being applied to the cast-in-place concrete hollow floor, it is also Unable to take part in the force bearing and transmission of cast-in-situ concrete hollow floor

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