Great-width multi-hole lightweight core formwork and construction method thereof

Abstract

The invention discloses a great-width multi-hole lightweight core formwork which comprises a lightweight core formwork laid on a to-be-poured concrete hollow floor bottom formwork in advance, wherein pouring areas used for pouring concrete hollow floors are formed between the lightweight core formwork and the bottom formwork and between adjacent lightweight core formworks; a supporting piece used for supporting the lightweight core formwork is arranged between the lightweight core formwork and the bottom formwork; a notch used for enhancing the connection strength of concrete in the pouring areas is formed in the lightweight core formwork; and pouring holes which penetrate through the upper and lower surfaces of the lightweight core formwork and inject concrete into the pouring areas and vibrating holes for performing vibrating compaction on the concrete in the pouring areas are respectively formed in the lightweight core formwork. According to the invention, the problems thin concrete even cavities occur around the central holes of the lightweight core formwork after penetration holes are reserved in the middle of the great-width multi-hole lightweight core formwork and the like are solved, the construction quality is ensured, and the economic benefits are improved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a large-format multi-hole lightweight mandrel and a construction method thereof. Background technique [0002] The lightweight mandrel hollow floor is to embed the lightweight mandrel in the cast-in-place concrete hollow floor according to the design requirements, so as to save the amount of concrete and reduce the cost of the project. At the same time, it can increase the net height of the building and improve the use function. It has the advantages of heat preservation, heat insulation, and sound insulation, and the use of lightweight filling materials increases the span of the cast-in-place slab, reduces its own weight, and improves the reliability and shock resistance of the structure. [0003] Since the lightweight mandrel needs to be pre-embedded, it is difficult to ensure the compactness of the underlying concrete. In order to solve the cavity at the bottom ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems mentioned above, the present invention provides A large-format multi-hole lightweight mandrel and its construction method , to solve the problem that the concrete is thinner or even empty around the central hole of the lightweight mandrel after the through hole is left in the middle of the large-scale lightweight mandrel in advance, ensuring the construction quality and improving economic benefits

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