Concrete-filled steel tube column and manufacturing method thereof

Abstract

The invention discloses a concrete-filled steel tube column, and further provides a manufacturing method of the concrete-filled steel tube column. The concrete-filled steel tube column comprises a steel tube and a plastic tube, the plastic tube is arranged in the steel tube, the outer peripheral surface of the plastic tube is connected to the inner peripheral surface of the steel tube in an abutting mode, and the plastic tube is filled with sea sand concrete. The manufacturing method includes the following steps that step 1, the plastic tube is embedded into the steel tube; and step 2, the seasand concrete is poured into the plastic tube. Compared with the prior art, the concrete-filled steel tube column has the beneficial effects that the plastic tube in the concrete-filled steel tube column blocks the contact between the sea sand concrete and the steel tube, thereby preventing the steel tube from being corroded by the sea sand concrete, sea sand can be combined with the steel tube to effectively solve the problem of lack of river sand in coastal areas and solve the problem of corrosion resistance of the concrete-filled steel tube column in a marine environment, an acid environment and a chloride ion environment, it is conducive to saving current resources, and sea sand resources which are not utilized in large quantities yet are explored.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a steel pipe concrete column and a manufacturing method thereof. Background technique [0002] Steel tube concrete columns and other steel-concrete structures can be used in many engineering fields, industrial buildings, civil buildings, military buildings, etc., and can be used in factory workshops, transmission towers, offshore oil exploration platforms, cross-sea bridges and other structures. [0003] For ordinary concrete-filled steel pipe components, sea sand is difficult to use directly, because the chloride ions in sea sand will corrode the steel pipe, affecting the durability of the component, and it will aggravate corrosion in humid and acidic environments, and even cause some accidents. This situation limits the utilization of sea sand. In addition, although stainless steel tubular concrete has better corrosion resistance, stainless steel is more expensive t...

AI Technical Summary

Problems solved by technology

[0003] For ordinary concrete-filled steel pipe components, sea sand is difficult to use directly, because the chloride ions in sea sand will corrode the steel pipe and affect the durability of the component. It will also aggravate corrosion in humid and acidic environments, and even cause some accidents. This situation limits the use of sea sand

In addition, although stainless steel pipe concrete has better corrosion resistance, stainless steel is more expensive than ordinary carbon steel, and it is difficult to apply it in complex acidic environments and marine environments.

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