Multi-cavity concrete filled steel tube combined column with C-type steel and manufacturing method

Abstract

The invention discloses a multi-cavity concrete filled steel tube combined column with C-type steel and a manufacturing method .C-type steel is arranged on the two sides of a rectangular steel tube, concrete is poured into three cavities, and accordingly the multi-cavity concrete filled steel tube combined column with C-type steel is obtained .The combined column and a wall are identical in width, edges and corners are prevented from protruding out of an indoor column, and use area and attractiveness of the room can be improved .After the cavities on the two sides are filled with concrete, the cavities serve as edge constraint components of the whole concrete filled steel tube column, and bearing force and energy-dissipating capacity of the column can be improved; a column body is divided into three cavities, constraint capacity of the steel tube to concrete is improved, local buckling of a steel plate can be delayed or prevented, and bearing force and ductility of the components are improved.

Description

technical field [0001] The invention belongs to the field of CFST composite columns for multi-layer and high-rise buildings, and particularly relates to a multi-cavity CFST composite column with C-shaped steel and a manufacturing method. Background technique [0002] With the economic globalization and the improvement of urbanization level, the urban population density has gradually increased, resulting in the continuous emergence of a large number of high-rise buildings. This urgently requires new technologies to support the design and construction of high-rise and multi-storey buildings. [0003] Concrete filled steel tube utilizes the interaction between steel tube and concrete in the process of stress, that is, the restraint effect of steel tube on concrete makes concrete in a complex stress state, so that the strength of concrete can be improved, and its plasticity and toughness can be greatly improved. At the same time, after filling concrete inside the steel pipe, th...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the above-mentioned shortcomings, provide a multi-cavity concrete-filled steel pipe composite column with C-shaped steel and its manufacturing method, solve the problem of protruding edges and corners in the traditional column chamber, and improve the bearing capacity and ductility of the multi-cavity concrete-filled steel pipe composite column

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