Anti-floating structure for cast-in-place concrete gbf hollow floor slab and method thereof

Abstract

The invention discloses an anti-floating structure and a method thereof during construction of cast-in-situ concrete GBF hollow slabs. The anti-floating structure and method include installing a formwork on a formwork support; arranging GBF thin-walled pipes, punching holes in the formwork according to the vertical and horizontal intervals according to the position of the GBF thin-walled pipes; binding and installing the GBF thin-walled pipes with steel bars; installing PVC sleeves Pipes, hook bolts, and steel backing plates. Tighten the hook bolts and formwork brackets, and compress the steel backing plates and anti-floating steel bars through nuts. After various inspections and acceptances, the concrete is poured in place. Congeal; remove the steel backing plate and hook bolts, and fill the bolt holes with mortar. Adopting the structure and construction method of the present invention can effectively solve the problem of floating of GBF thin-walled pipes during cast-in-place concrete. After the formwork is removed, there is no need for post-processing of exposed wire heads, which saves a lot of wires and avoids easy Rust phenomenon occurs.

Description

[0001] technical field [0002] The invention relates to an anti-floating structure and method used during the construction of cast-in-situ concrete GBF hollow floor slab structures, and belongs to the technical field of building construction. Background technique [0003] In recent years, cast-in-situ concrete GBF hollow-core slabs have appeared in multi-storey and high-rise buildings with large spaces in China, which is a floor slab composed of hidden beams and non-core-pulling hollow-core slabs; the hidden beams are as thick as the floors, thereby increasing the space The use of height reduces the self-weight of the structure. Without prestressing, the structure can meet the requirements of large bays and large spans, and achieve the purpose of reducing costs. It is especially suitable for public buildings with large bays. [0004] During the construction of this kind of cast-in-place concrete GBF hollow floor structure, due to the flow of concrete, the GBF thin-walled tu...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is the problem of floating up of the GBF thin-walled pipe during the construction process of the cast-in-situ concrete GBF hollow floor structure, and the traditional construction consumes a lot of labor and auxiliary materials such as iron wire

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