Steel plate concrete column and construction method

Abstract

The invention discloses a steel plate concrete column and a construction method, and the method is characterized in that a plastic skin aluminum core lead wire is built in on a steel bar before concrete is poured, unhardened concrete is heated by utilizing an electromagnetic inductive method, and when the concrete is hardened, the shrinkage of a steel plate is greater than that of the concrete, i.e., prestressing force is applied to a steel tube by the concrete. Before the concrete is poured, an inbuilt conducting tube is connected with an anode power supply, the steel bar is connected with a negative power source, the power source is switched on in the process of pouring the concrete, and free water in the concrete is discharged through different electric potential distributions formed in the concrete. The steel plate concrete column provided by the invetnion has the advantages of high intensity, light weight, good plasticity, shock resistance, fatigue resistance, and the like; and the construction method provided by the invention has the characteristics that templates are omitted, labor and materials are saved, the construction is convenient, no season restriction exists, and the like.

Description

technical field [0001] The invention relates to a steel plate concrete column and a construction method, which are suitable for the field of building construction. Background technique [0002] The steel plate concrete column makes the core concrete in a three-dimensional compression state by means of the hoop effect of the steel plate on the core concrete, so that the core concrete has higher compressive strength and compression deformation resistance. In engineering practice, the steel plate concrete column cannot be ideally applied, so that the steel pipe and concrete are often considered as a combined section in the design process, and the material of the steel plate concrete column cannot be fully utilized. There are two reasons why the steel plate concrete column cannot fully exert its capacity: 1. When the external temperature rises, because the linear expansion coefficient of steel is greater than the linear expansion coefficient of concrete, and the steel pipe is di...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a steel plate concrete column and its construction method. By using the electromagnetic induction heating method in the process of pouring concrete, the problem that the steel plate and concrete do not work together due to temperature is solved, and an electric field is formed during the concrete pouring process. The method of filtering water solves the problem of segregation of steel plates and concrete columns due to hydration

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