Cavity shuttering component

Abstract

The invention provides a cavity formwork shell component, comprising an upper plate (1), a circumferential side wall (2) and a lower bottom (3); the upper plate (1), the circumferential side wall (2) and the lower bottom (3) enclose a polyhedron cavity formwork shell component; the cavity formwork shell component is characterized in that at least a transverse corner of the lower part of the cavity formwork shell component is a female angle (4); the cavity formwork shell component is internally provided with at least a reinforced rib plate (5); all transverse corners of the lower part of the cavity formwork shell component are female angles (4) which are communicated as a female angle ring; the female angles (4) are vertically crossed or form meshes. The cavity formwork shell component is applicable for the hollow floor plates, floors, walls, foundation soleplates and hollow bridges of cast-in-situ reinforced concrete or pre-stress reinforced concrete.

Description

[0001] This application is a divisional application of the invention patent application with the filing date of September 9, 2003, the application number of 03159175.2, and the title of "A Cavity Formwork Component". (1) Technical field [0002] The present invention relates to a cavity formwork 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, and the upper plate, the surrounding side walls and the lower bottom form a polyhedral cavity. Another example is the p...

AI Technical Summary

Problems solved by technology

However, after being applied to the hollow floor, the cast-in-place concrete ribs formed between the cavity formwork members are all rectangular cast-in-place concrete ribs, and their mechanical performance is not very reasonable, so it is often necessary to increase the cross-sectional size of the cast-in-place concrete ribs , increase the amount of steel bars and concrete, and increase the cost of the floor. At the same time, there is no reinforcement structure in the cavity formwork member, so the overall strength and rigidity of the cavity formwork member are poor, and the cavity formwork member is prone to damage. Phenomenon, after being applied to the cast-in-place concrete hollow floor, it cannot participate in the force and transmission of the hollow floor

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