Cast-in-place concrete hollow cavity shuttering member

Abstract

A cavity die shell component for casting-in-place concrete includes a top plate, side walls and a bottom forming a polyhedron cavity shell component and the bottom extends from at least one side wall to form a cantilever slab characterizing in setting at leat longitudinal concave slot on one side wall at least, thus, the concrete forms a cast-in-place concrete pier, column or reinforcing rib between the cavity shell components so as to improve the floors mechanical performance tremendously.

Description

(1) Technical field [0001] The invention relates to a cavity formwork component for cast-in-place concrete. (2) Background technology [0002] 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 patent No. ZL00203695.9 applied by Liang Jun, Shijiazhuang City, Hebei Province on February 23, 2000, and the name is called "combined concrete hidden rib floor cover plate" utility model patent, wh...

AI Technical Summary

Problems solved by technology

However, after this cavity formwork component is applied to the hollow floor, the strength and stiffness of the hollow slab are relatively poor in the evacuated part of the cavity formwork component, and the ability to withstand concentrated loads is relatively low. Therefore, a A new type of cavity formwork member for cast-in-place concrete has been urgently needed

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