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Carbon fiber-reinforced plastic steel reinforced-steel tube concrete combination column

A technology of steel pipe concrete and reinforced plastics, which is applied in the direction of columns, pier columns, pillars, etc., can solve the problems that cannot be destroyed at the same time, the hoop ratio of the boundary volume is large, and it is difficult to realize, so as to achieve the effect of improving bearing capacity and ductility

Inactive Publication Date: 2008-08-06
SHENYANG JIANZHU UNIVERSITY
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Problems solved by technology

However, there are still the following main disadvantages: when the CFST core column is damaged under compression, the two parts of the CFST column and the reinforced concrete column on the outside may not be damaged at the same time, or the inside and outside cannot work together well
The proposal of this theory has indeed solved a major problem in the research and application of CFST core columns, but in some engineering applications, the boundary volume ratio is too large, making it difficult

Method used

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  • Carbon fiber-reinforced plastic steel reinforced-steel tube concrete combination column

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Embodiment Construction

[0016] The present invention will be described in detail below with reference to the drawings.

[0017] As shown in the figure, the carbon fiber reinforced plastic steel-concrete steel tube composite column of the present invention includes three parts: carbon fiber reinforced plastic fiber fabric 2, steel frame 1, and steel tube concrete core column. Among them, the concrete-filled steel tube core column includes a round steel tube and its inner and outer concrete. The steel frame 1 is located at the four corners of the steel tube concrete core column, the carbon fiber reinforced plastic fiber fabric 2 is located on the outside of the steel frame, and the carbon fiber reinforced plastic is integrated with the steel frame and the steel tube concrete core column by pasting. The steel frame can be an angle steel or welded by steel plates; the fiber fabric used in the carbon fiber reinforced plastic fiber fabric 2 can be unidirectional or bidirectional, and the angle between the fibe...

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Abstract

A carbon fiber reinforced plastic steel skeleton-steel tube concrete combination column relates to a building component form, which comprises carbon fiber reinforced plastic fabric, steel skeleton and steel tube concrete core columns, wherein the steel skeleton is located on the four corners of the steel tube concrete core columns, carbon fiber reinforced plastic fabric is adhered on the outer side of the steel skeleton, and carbon fiber reinforced plastic fabric, steel skeleton and steel tube concrete core column are integrated. A reinforcing method which is adopted by the invention after the steel tube concrete core column is damaged can well increase the loading and the ductility of the steel tube concrete core column compared with the reinforcing method of simply adopting angle steel.

Description

Technical field [0001] The invention relates to a form of building component, in particular to the structure of a carbon fiber reinforced plastic steel frame-steel tube concrete composite column. Background technique [0002] The concrete-filled steel tube core column refers to a structural member in which concrete-filled steel tube is arranged on the inner side of the reinforced concrete column. Because the steel tube provides a restraint on the concrete in the core area and produces a sleeve effect, this component can significantly increase the bearing capacity of the column and improve the overall seismic performance of the building. Its energy consumption capacity is significantly higher than that of general reinforced concrete. column. This kind of column has been used in many projects. In specific projects, it is often used in columns with high axial compression ratios at the bottom of high-rise buildings. The stress state is mainly small eccentric compression. However, the...

Claims

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Application Information

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IPC IPC(8): E04C3/30E04C3/36
Inventor 徐亚丰白首晏
Owner SHENYANG JIANZHU UNIVERSITY
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