Shuttering member

Abstract

A formwork member, comprising an upper plate (1), surrounding side walls (2) and a lower bottom plate (3), wherein the upper plate (1), the surrounding side walls (2) and the lower bottom plate (3) form a hollow body, It is characterized in that at least one base layer of the upper plate (1), the surrounding side walls (2) or the lower base plate (3) is laminated with at least one laminated layer (4), the laminated layer (4) is laminated with the base layer as a whole, and the lower At least one prestressed tendon (5) is clamped in the base plate (3), and the surrounding side walls (2) are connected with the lower base plate (3). It is suitable for hollow floors, roofs, walls, foundation slabs and hollow bridges of cast-in-place reinforced concrete or prestressed reinforced concrete, especially for hollow beamless floors.

Description

[0001] This application is a divisional application of an invention patent application with the filing date of October 1, 2003, the application number of 200310100986.1, and the title of "a formwork component". (1) Technical field [0002] The present invention relates to a formwork member. (2) Background technology [0003] At present, the cast-in-place concrete hollow floor is a widely used floor structure, and the lightweight permanent tire mold filled in it includes hollow tubes and cavity formwork components. 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 that the application number applied ...

AI Technical Summary

Problems solved by technology

However, it is inconvenient to manufacture such formwork components, the production efficiency is low, it is not convenient for assembly line production, and the corresponding cost is high. The damage rate of the shell components is high, and it is inconvenient to carry and construct, which increases the construction cost. In addition, if the bottom surface of the formwork components is flush with the bottom surface of the cast-in-place concrete ribs and exposed to the ceiling, it is easy to cause damage during long-term use. Cracks affect the appearance quality of floor ceilings, therefore, it is urgent to develop a new formwork component

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