Square steel pipe concrete and H-shaped steel beam nod connection structure

Abstract

The present invention relates to a structure for connecting the square steel tube concrete column with the node of the axle I-beam in the construction engineering technique field, comprising a square steel tube concrete column, an axle I-beam and a built-in steel plate. The position of the axle I-beam web plate on the wallboard of the square steel tube concrete column is arranged with a vertical groove with dimension same to the girder steel web plate and the groove is taken as the channel that the axle I-beam web plate passes through the wallboard of the square steel tube concrete column. The axle I-beam web plate runs through the wallboard of the square steel tube concrete column, the wing rim of the axle I-beam is directly welded on the external wall of the square steel tube concrete column. The placing mode of the build-in steel plate in the square steel tube concrete column is vertical and is parallel with the web plate of the axle I-beam, and the edge is accordant with the wing rim of the axle I-beam. The invention increases the whole shearing resistance and bending-resisting bearing ability of the node, and guarantees the coordinate operation of the square steel tube concrete column and the axle I-beam.

Description

technical field [0001] The invention relates to a structure in the technical field of construction engineering, in particular to a node connection structure between a square steel tube concrete column and an I-shaped steel beam. Background technique [0002] At present, my country's "Technical Regulations for Rectangular Concrete-filled Steel Tube Structures" (CECS159:2004) provides steel-beam connection nodes for square concrete-filled steel tube columns mainly by inner diaphragm type and outer diaphragm type. There are following deficiencies in the connection between the square concrete-filled steel pipe column and the steel beam in the prior art: [0003] (1) The mechanical properties of joints and the simplicity and economy of construction cannot be both. In practical applications, some types of joints have better mechanical properties, and the overall stiffness of the joints is also high, but the amount of materials used is large and the construction is complicated. ...

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Problems solved by technology

[0003] (1) The mechanical properties of joints and the simplicity and economy of construction cannot be both

In practical applications, some types of joints have better mechanical properties, and the overall stiffness of the joints is also high, but the amount of materials used is large and the construction is complicated

[0004] (2) Affect the appearance and use of buildings

The structure of the joints of the cast-in-place floor beams and slabs often conflicts with the appearance and use of the building, and makes the layout of the floor beams and slabs inflexible. For example, when the external diaphragm joints are applied to the side columns, the reinforcement ring will protrude from the building facade

On the other hand, it causes the unsightly appearance of the floor, which needs to be solved by decorating the ceiling.

[0005] (3) Inflexibility of node applications

The disadvantage of this kind of joint is: since the partition runs through the wall of the square steel tube concrete column, it is bound to cause the square steel tube concrete column to be cut off at the joint when welding the inner partition, and then welded with the partition in sections, resulting in an increase in welding workload ; In addition, due to the existence of internal partitions, it is difficult to pour concrete at the joints, and the existence of external partitions has caused unsightly construction

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