Concrete filled steel tubular column with wolf tooth core column

Abstract

The concrete-filled steel tube column comprises an outer steel tube, the wolf tooth core column located in the outer steel tube and concrete filled in the outer steel tube, the wolf tooth core column comprises a solid steel column and ribbed steel bars, the internally-arranged wolf tooth core column longitudinally penetrates through a column body, and the center of the wolf tooth core column coincides with the center of the outer steel tube; wherein the wolf tooth core column is connected with the ribbed steel bars. The solid steel columns and the ribbed steel bars connected with the solid steel columns are collectively called wolf tooth core columns. The ribbed steel bars are evenly distributed on the periphery of the built-in steel column in the mode of being perpendicular to the built-in steel column to form a wolf tooth-shaped core column. The core column is located in the center of the steel pipe and at least tightly connected with the eight ribbed steel bars with certain lengths, and the core column and the outer steel pipe form a whole after concrete is poured. The structural design is improved, the constraint performance of core concrete is improved, the bearing capacity of the column is improved, the plastic deformation of the column is reduced, the section size and material consumption of the concrete-filled steel tube column are reduced, and the column is economical and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a concrete-filled steel tube column with a wolf-tooth core column. Background technique [0002] With the rapid development of my country's economy, the number of high-rise buildings is increasing day by day, so the requirements for the bearing capacity and seismic ductility of structural columns are also getting higher and higher. In order to meet the corresponding needs, the cross-sectional size of the structural load-bearing columns is also getting larger and larger, resulting in an increase in the self-weight of the structure and limited space for use. [0003] However, with the continuous emergence of super high-rise buildings, the cross-sectional dimensions of structural foundations and bottom / middle-story columns are still relatively large, resulting in a large amount of concrete and thick steel pipes, which is not conducive to the development of concrete ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a steel pipe concrete column with a spiked core column in order to solve the problems in the prior art that the load-bearing column of the building structure has a large cross-sectional size, the self-weight of the structure increases, and the use of space is limited. By improving the structural design, Improve the confinement performance of core concrete, improve the bearing capacity and seismic ductility of CFST columns

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