Ultra-large dual-layer steel plate concrete silo prestressed technology and structure of ultra-large dual-layer steel plate concrete silo

Abstract

The invention discloses an ultra-large dual-layer steel plate concrete silo prestressed technology and a structure of an ultra-large dual-layer steel plate concrete silo. The technology comprises the steps of firstly digging a foundation pit, hitting a pile foundation, making a foundation plate, mounting a silo assembly, and sealing the bottom of a silo; after the silo assembly and foundation water in the silo are prestressed for a certain time, pouring concrete into the silo assembly to form a dual-layer steel plate concrete silo wall and removing the water pressure after consolidation; prestressing the foundation in the silo for a certain time by the rest prestressed water filling body, removing the prestressed water, and finally performing secondary pouring on the foundation plate in the silo. The structure of the ultra-large dual-layer steel plate concrete silo comprises the foundation, a belt corridor, the silo assembly, a belt trestle, a central blanking drum, a rainshed and a bottom sealing film. The characteristics of strong pulling resistant performance of the steel plate and the strong crushing resistance of the concrete are utilized, so the soil is prestressed by the actual load of loaded materials; in the structure, a steel pipe support pouring concrete is adopted to replace a steel plate or concrete support, and a steel structure cone is used for replacing a reinforced concrete cone, so the problems that after the silo is put into use, the use of the foundation is influenced caused by unevenness and deformation due to unbalanced loading of the materials and the like are avoided.

Description

technical field [0001] The invention relates to the field of warehousing, in particular to a super-large double-layer steel plate concrete silo prestressing process and a matching ultra-large double-layer steel plate concrete silo structure. Background technique [0002] At present, the main structure of large silos mainly includes prestressed reinforced concrete structure and steel structure steel silo structure. [0003] The prestressed reinforced concrete structure silos all adopt integral pile foundations, which is difficult to construct on site, costs a lot for the foundation, consumes a lot of concrete, takes a long construction period, and overall costs are high. And after the materials are loaded in after completion, the bottom plate will be plagued by long-term internal stress caused by partial load. [0004] Steel structure steel silo structure silo: the wall of the steel silo structure is thin, the vertical force is poor, and it is easy to lose stability. When th...

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Problems solved by technology

[0003] The prestressed reinforced concrete structure silos all adopt integral pile foundation, which is difficult to construct on site, costs a lot for the foundation, consumes a lot of concrete, takes a long construction period, and overall costs are high

And after the materials are loaded in after completion, the bottom plate will be troubled by long-term internal stress brought by partial load

[0004] Steel structure steel silo structure silo: the wall of the steel silo structure is thin, the vertical force is poor, and it is easy to lose stability. When the silo stores cohesive materials, it is easy to form a wall, the vertical load increases sharply, and it is very easy to lose stability. rupture

Steel structure steel plate silo structure silos sometimes adopt the overall ring-shaped pile foundation, without pile foundation treatment inside, and the cost is reduced. The pressure from the ground will cause a large deformation, and the deformation will be uneven, which will cause the deformation of the bottom corridor and seriously affect the use.

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