Steel pipe concrete column of I-shaped FRP section

Abstract

The invention provides a steel pipe concrete column of an I-shaped fiber reinforce plastic (FRP) section and relates to a building member. The steel pipe concrete column consists of a rectangular, square or circular steel pipe, the I-shaped FRP section arranged in the steel pipe and concrete filled between the steep pipe and the I-shaped FRP section, wherein the steel pipe concrete column of the I-shaped FRP section is a coupled column consisting of three different materials of the FRP, the steel pipe and the concrete, namely the steel pipe concrete coupled column of the I-shaped FRP section; and the shape of the cross section of the steel pipe concrete column of the I-shaped FRP section has a rectangular structure, a square structure or a circular structure. Under the conditions of reasonable selection of steel ratio and distribution rate of the FRP, the cross section size of the column can be reduced; and a steel pipe framework can be temporarily supported during construction, so that the construction can be accelerated. The ductility of the column is improved because of the steel pipe so as to contribute to the aseismatic design of seismic areas. The characteristics of light weight and high strength of an FRP material is used to improve the bearing capacity of the column and increase the usable area.

Description

technical field [0001] The invention relates to a building component, in particular to an I-shaped FRP profile-steel pipe-concrete column. Background technique [0002] Because the frame structure has the advantages of flexible layout and large use space, it has received extensive attention from engineering. The frame column as the main component of the frame structure is generally an ordinary reinforced concrete column, that is, the steel cage is bundled first, then the formwork is supported, and finally the concrete is poured. The production of this traditional reinforced concrete column has long construction period, great difficulty, and The shortcoming of low efficiency, Chinese utility model patent No. 03248845.9 provides an improved "a reinforced concrete column", including reinforced concrete prefabricated components, steel bars, reinforced concrete columns are composed of multiple reinforced concrete cylindrical prefabricated components, longitudinal reinforcement po...

AI Technical Summary

Problems solved by technology

This kind of I-shaped FRP steel pipe concrete column solves the shortcomings of the existing square, rectangular or circular steel pipe concrete columns, fully utilizes the strength of the FRP material, has high bearing capacity, high rigidity, light weight, good plasticity, toughness, and resistance Good impact and fatigue resistance, good shock resistance, etc.

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