Multi-cavity concrete-filled steel pipe combination column with stiffening ribs and manufacturing method

Abstract

The invention discloses a multi-cavity concrete-filled steel pipe combination column with stiffening ribs and a manufacturing method. The multi-cavity concrete-filled steel pipe combination column is characterized in that two stiffening plates are arranged between two side plates, and sealed steel plates are arranged in opening positions of the two side plates, thereby forming the multi-cavity concrete-filled steel pipe combination column with the stiffening ribs. The multi-cavity concrete-filled steel pipe combination column with the stiffening ribs, disclosed by the invention, has the same width with a wall, protruding of corner angles of indoor columns is avoided, and the using area and the attractiveness of a room can be enlarged; cavities arranged at two sides can be used as edge constraint components of the whole concrete-filled steel pipe column after the cavities are fully filled with concrete, so that the bearing capacity and the energy dissipating capacity of the multi-cavity concrete-filled steel pipe combination column can be increased; a rectangular steel pipe is divided into three small cavities by the stiffening plates, so that the constraint capacity of the steel pipe on concrete is increased; meanwhile, local buckling of the steel plate can be delayed or prevented, and the bearing capacity and the ductility of the components are increased.

Description

technical field [0001] The invention belongs to the field of steel pipe concrete composite columns of multi-storey and high-rise buildings, and in particular relates to a multi-cavity steel pipe concrete composite column with stiffening ribs and a manufacturing method thereof. Background technique [0002] With the economic globalization and the improvement of urbanization level, the urban population density is gradually increasing, which makes a large number of high-rise buildings emerge continuously. There is an urgent need for new technologies to support the design and construction of high-rise and multi-storey buildings. [0003] Concrete filled steel tube utilizes the interaction between the steel tube and concrete in the process of stress, that is, the restraint of the steel tube on the concrete makes the concrete in a complex stress state, so that the strength of the concrete is improved, and the plasticity and toughness are greatly improved. At the same time, after ...

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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 stiffening ribs 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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