Circular steel tube concrete column and beam node connecting structure

Abstract

The invention discloses a circular steel tube concrete column and beam node connecting structure, which is characterized in that: the connecting structure comprises a node fastener, a bolt, a circular steel tube concrete column and a beam; the node fastener is composed of two sections of fastening rings and a joint, and the joint is in sleeve type and horizontally H-shaped type, the circular steel tube concrete column penetrates in the fastening rings and is fastened by the bolt, and the beam is connected by the joint on the fastener; the field installation is convenient without welding and the construction is rapid; the fastener is composed of two sections and is connected by the bolt after being fixed, and the circular steel tube concrete column is fixed by tightening force of the fastener; the circular steel tube concrete column is inserted in the sleeve type joint and is fixedly connected with the sleeve type joint by the bolt, and a concrete beam steel bar and a steel girder are welded with the horizontally H-shaped type joint; besides welding of the concrete beam steel bar and the horizontally H-shaped type joint, in the whole process, welding and complex distributed steel do not need, the construction is simple and rapid.

Description

technical field [0001] The invention relates to the joint connection of columns and beams in construction engineering, and specifically refers to the connection of circular steel pipe concrete columns and steel pipe concrete beams, steel beams and concrete beams. Background technique [0002] Due to its excellent mechanical properties, steel pipe concrete is widely used in construction projects. Compared with the square concrete-filled steel tube, the steel tube wall of the circular steel tube concrete has a better restraint effect on the core concrete, and is more suitable for the application of the pressure-bearing column. However, the surface of the round steel pipe is arc-shaped, which is inconvenient to weld, and the joint connection processing is more complicated. The effective connection of nodes is the basic guarantee of structural security. [0003] At present, the joint connection between circular steel pipe concrete columns and beams is mainly realized by settin...

AI Technical Summary

Problems solved by technology

[0004] (1) The structure of the joint is complicated, and the construction on site is inconvenient

For example, the installation of reinforcing rings and corbels requires a lot of welding work on site, and the steel plates and steel bars through the core will cause the concrete pouring inside the steel pipe to be difficult, and the opening and installation are inconvenient

[0005] (2) Economic and mechanical properties cannot be combined

For example, the external reinforcement ring type joint has good mechanical properties and high overall rigidity, but the construction is complicated and the material consumption is large

The anchor plate joint has a simple structure, convenient construction, and saves materials, but the overall stiffness of the joint is small, so it can only be applied to the situation where the internal force is not large

[0006] (3) Opening or slotting has a weakening effect on the steel pipe wall, and it is easy to cause stress concentration

At the same time, the hole is easy to cause stress concentration

[0007] (4) The appearance and space of the building are not flexible

For example, when the ring beam joint is used for the side column, it will highlight the facade of the building and affect the appearance

For the joints with corbels, if the bearing capacity is large, the section of the corbels will be increased, which will lead to inconsistency with the structural layout

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