Concrete column and production method thereof

Abstract

The invention belongs to the technical field of engineering, and especially relates to a concrete column and a production method thereof. The structure of the provided concrete column comprises an FRPpipe, ultrahigh performance concrete and ordinary performance concrete; the factory prefabricated FRP pipe replaces a steel bar as a reinforcing material, and also serves as a template to form a hollow cylinder, the ultrahigh performance concrete is poured to the bottom of the hollow cylinder, the ordinary performance concrete is poured into the remaining part of the hollow cylinder, and the height of the ultrahigh performance concrete is 1.5-3 times the external diameter of the hollow cylinder. The invention also provides the production method of the concrete column. The lateral restrainingforce of the hollow cylinder formed by the FRP pipe is increased, the internal concrete is effectively restrained to form a three-direction stress state, so the compressive strength of the concrete isimproved; and the technical defect of insufficient concrete strength, protective layer shedding, stirrup breaking and longitudinal steel bar flexing and other safety risks of conventional reinforcedconcrete column in earthquake and other extreme damages is overcome.

Description

technical field [0001] The invention belongs to the technical fields of civil engineering, construction engineering and road and bridge engineering, and in particular relates to a concrete column and a preparation method thereof. Background technique [0002] Reinforced concrete structures have been widely used in engineering fields such as tunnels, bridges, and civil buildings, and have become the most common building materials in our lives. Among them, the concrete column is the most critical part of the load-bearing system of the structure, and its safety performance affects the overall performance of the entire structure. Architectural designers need to ensure that the column does not undergo brittle failure and does not have too much deformation and displacement under extreme working conditions. [0003] Under earthquake action, the main reason for the failure of traditional reinforced concrete columns is the insufficient lateral restraint capacity of reinforced concre...

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Problems solved by technology

[0005] In view of this, the present invention provides a concrete column and a preparation method thereof, which are used to solve the problems in the prior art that traditional reinforced concrete columns are prone to insufficient concrete strength, shedding of the protective layer, broken stirrups and Longitudinal reinforcement buckling and other conditions, there is a technical defect of greater personal safety risk

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