Combined reinforced joint for connection of steel beam and wide concrete filled steel tubular column

Abstract

The invention discloses a combined reinforced joint for connection of a steel beam and a wide concrete filled steel tubular column. The combined reinforced joint comprises a wide steel pipe concrete column, steel beams, outer flitch plates, a locally-through transverse partition plate, a connecting plate and vertical inserting plates; the short edge of the wide steel pipe concrete column is connected with the steel beams, and upper flanges, lower flanges and web plates of the steel beams are connected with the column wall of the short edge of the wide steel pipe concrete column after passing through the two outer flitch plates, the local-through transverse partition plate and the connecting plate; when the wide steel pipe concrete column is located in the middle of a building plane, the two sides of one end of the long edge of the wide steel pipe concrete column are connected with the two steel beams through the vertical inserting plates correspondingly, and the vertical inserting plates are connected with the outer flitch plates and the locally-through transverse partition plate correspondingly. The invention provides a construction method for simultaneously rigidly connecting the wide steel pipe concrete column with the steel beams in a strong axis direction and a weak axis direction. The rigidity and strength of the joint and the joint connecting area can be guaranteed, plastic hinges appear on the steel beams, the ductility coefficient of the joint reaches 5.5 or above, and the design target of strong joints and weak components can be achieved.

Description

technical field [0001] The invention relates to a combined reinforced joint used for connecting steel beams and wide concrete-filled steel tube columns, which can be widely used in the rigid connection between H-shaped steel beams and wide steel-filled concrete columns in multi-story steel structures. Background technique [0002] In the multi-story steel structure, the steel beams are mostly H-shaped steel beams, and the steel columns are mostly rectangular steel tube concrete columns. The rigid connection of steel beams and steel columns is the most basic measure to provide the overall rigidity and seismic performance of the structure. At present, the commonly used rigid joint is to set a transverse diaphragm at the position corresponding to the beam flange of the steel column, and the internal force of the steel beam flange is transmitted to the steel column through the diaphragm, thus forming a rigid joint. There are two types of diaphragms: inner diaphragm and through ...

AI Technical Summary

Problems solved by technology

Partially through diaphragms need to be inserted when the weak axis is connected, which will form a partially closed area and cannot be poured with concrete; the externally attached plate connection node is easy to protrude at the lower flange, which affects the appearance of the building and the installation of the window frame at the lower part of the beam

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