Square concrete funnel formwork supporting structure and construction method

Abstract

The invention provides a square concrete funnel formwork supporting structure and a construction method. The square concrete funnel formwork supporting structure comprises an upper formwork, a lower formwork, an upper secondary ridge, a lower secondary ridge, opposite-pull screws, an upper main ridge and lower main ridges; each lower main ridge is composed of two trusses, each truss is of a plane frame structure formed by welding and connecting an upper chord member, a lower chord member and a web member, the upper chord members are steel pipes with the same specification as the upper main ridge, and the upper chord members are welded and connected between the two trusses through connecting rods; and when the formworks are supported, the multiple lower main ridges are arranged at the bottom of the lower formwork and the bottom of the lower secondary ridge side by side, the length direction of the lower main ridges is perpendicular to the inclined wall of a funnel, the upper chord members of every two adjacent lower main ridges are connected through a mountain-shaped clamp and connected with the upper main ridge through the opposite-pull screws, and supporting frames are erected at the bottoms of the lower main ridges. According to the square concrete funnel formwork supporting structure and the construction method, the rigidity of the lower formwork supporting structure on the inclined wall of the funnel is improved, the strength of the lower formwork is improved, the lower formwork is prevented from deforming, and the funnel concrete construction quality is guaranteed.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a square concrete funnel formwork support structure and a construction method. Background technique [0002] Common industrial buildings, such as silo systems and coal handling systems, are designed with reinforced concrete funnels. The cross section of the funnel is round and square. The general reinforced concrete funnel inclined slab has relatively dense steel bars, large slab thickness, and difficult formwork support. According to the conventional practice, the erection of the funnel inclined plate formwork includes the erection of the support frame, the erection of the main flute, the erection of the secondary flute, the installation of the formwork, the erection of the inclined support, the binding of steel bars, and the pouring of concrete. [0003] In the conventional technology, the lower main flute adopts the same scaffolding steel pipe as the upper main flute. H...

AI Technical Summary

Problems solved by technology

However, due to the special structure of the inclined wall of the funnel, the gravity of the lower formwork is much greater than that of the upper formwork. If the formwork support structure with the same rigidity as the upper main flute is adopted, the lower formwork will often be deformed due to insufficient support strength.

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