Joint of concrete-filled steel-tubular column and steel beam and architectural structure system

Abstract

The invention discloses a joint of a concrete-filled steel-tubular column and a steel beam. The steel beam is connected with a steel tube of the concrete-filled steel-tubular column at the joint, inner ring plates are arranged on the positions, corresponding to an upper flange and a lower flange of the steel beam, in the concrete-filled steel-tubular column respectively, the inner ring plates are fixedly connected to the inner wall of the steel tube of the concrete-filled steel-tubular column, and a plurality of steel bars are arranged on the inner ring plates in the direction of the steel beam. The invention further discloses an architectural structure system which comprises the joint of the concrete-filled steel-tubular column and the steel beam. Due to the fact that the multiple steel bars are arranged on the inner ring plates in the direction of the steel beam, the steel beam is clear in force transmission, high in integrality and good in ductility, joint quality is improved, mechanical bite force of the steel tube and the concrete is increased, and the problem of poor cooperativity of the steel tube of the concrete-filled steel-tubular column with the big diameter and the concrete is solved. The architectural structure system is safe and stable.

Description

technical field [0001] The invention relates to the technical field of structural engineering, in particular to a connection node between a steel pipe concrete column and a steel beam and a building structure system. Background technique [0002] Concrete filled steel tubes are favored due to their advantages such as high strength, good ductility, fatigue resistance, impact resistance, and easy construction, and are increasingly used in high-rise buildings. However, the research on the joints of large-diameter concrete-filled steel tube columns is not mature, and the joint connection form and structure of large-diameter concrete-filled steel tube columns and beams directly affect the stability and safety of building structures, and also affect the amount of steel used and economical efficiency of building structures . [0003] At present, the existing joint forms are mainly outer-ring joints, inner-ring joints, and through-core joints, etc., but for large-diameter CFST colu...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a connection node between concrete filled steel pipe columns and steel beams with clear force transmission, simple structure and good ductility, so as to improve the connection quality of the nodes and increase the synergy between large-diameter steel pipes and concrete, thereby overcoming Insufficiency of existing joints between concrete filled steel tube columns and steel beams

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