Opening formwork component for concrete filling

Abstract

The invention relates to an open formwork component used for concrete filling, which is characterized in that the formwork component is a U-shaped groove component; the open formwork component comprises a U-shaped groove (1), a prefabricated horizontal groove end plate (2) or a prefabricated horizontal groove medium plate (3); the ground paste embryos of the U-shaped groove (1) wraps the plate edges of the three sides of the prefabricated horizontal groove end plate (2) or the prefabricated horizontal groove medium plate (3); binding joints (4) for the embryos and the prefabricated plates arearranged between the plate edges of the three sides and the embryos of the U-shaped groove (1). The U-shaped groove (1), the prefabricated horizontal groove end plate (2) or the prefabricated horizontal groove medium plate (3) contains reinforcements (5); the U-shaped groove (1), the prefabricated horizontal groove end plate (2) or the prefabricated horizontal groove medium plate (3) contains reinforcements (5), and is provided with a soft and hard superimposed layer structure (21). The formwork component is applicable to hollow floor systems, roofs, foundation slabs, walls or hollow bridges made of cast-in-situ reinforced concrete or pre-stressed reinforced concrete, in particular applicable to hollow girderless floor systems.

Description

[0001] This application is a divisional application of an invention patent application with an application date of June 9, 2004, an application number of 200410155125.8, and a title of "an open formwork member for concrete filling". (1) Technical field [0002] The invention relates to an open formwork member for concrete filling. (2) Background technology [0003] At present, most of the buildings with brick-concrete structure and frame structure use prefabricated hollow-core slabs as floor slabs. This kind of floor slab has the advantages of fast construction speed and low cost, but because there is no firm connection between two adjacent prefabricated hollow-core slabs , Only cement mortar is used to fill the gaps, so not only the integrity is poor, which is not conducive to earthquake resistance, but also cracks and water seepage often occur in the gaps, causing great inconvenience and psychological pressure to the residents. In order to solve the above problems, many bu...

AI Technical Summary

Problems solved by technology

However, since the square opening formwork surrounded by the upper plate and the surrounding side plates in the floor slab is a one-time integral opening formwork, its production is troublesome and the cost is relatively high. A new type of open formwork member for concrete filling has been urgently needed

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