Steel tube concrete column-plate hinged joint node

Abstract

The invention relates to a civil engineering structure, in particular to a concrete filled steel tubular column-plate hinged joint, which comprises a concrete filled steel tubular column and a concrete floor, wherein the concrete filled steel tubular column and the concrete floor are connected through a hinge support, the concrete filled steel tubular column and the plate hinge point are suitablefor the building which is not provided with bearing walls and beams, and is only provided with vertically bearing concrete filled steel tubular column, as a vertical bearing part, the section area ofthe concrete filled steel tubular column-plate hinge point is reduced by more than a half compared with the steel reinforcement concrete column, improves the joint anti-deformation ability, ensures that the joint has a stronger deformation ability than that of frame-shear wall. When the joint is under powerful earthquake destroying, the concrete filled steel tubular column moves along with the concrete floor and the upper column and the lower column of the concrete filled steel tubular column slide relatively to each other, the concrete floor shall not tilt, thereby avoiding building collapses.

Description

Technical field: [0001] The invention relates to civil engineering structures, in particular to a steel pipe concrete column-slab hinge joint. Background technique: [0002] With the improvement of residents' living standards, people put forward higher requirements for the individuation of house layout. There are too many load-bearing components in ordinary houses, such as columns, walls, and beams. The layout of the design makes the residence quickly lag behind the development of the society and does not have the conditions for sustainable development. In the case of reducing too many columns and beams, the slab-column structure system is widely used now. The slab-column structure system has no criss-cross ribs and beams; it makes the construction easier and reduces the decoration work of the floor. Compared with the beam-column frame structure, the beamless floor system can significantly reduce the floor height under the same clear height requirements, thereby reducing th...

AI Technical Summary

Problems solved by technology

[0004] The slab-column joints under the conventional design generally use reinforced concrete columns. In recent years, due to the excellent vertical bearing capacity of the steel tube concrete columns, they have gradually been applied in the slab-column system. In addition to the load, it also needs to bear horizontal loads such as earthquakes, and the design of its nodes is mainly based on the design of rigid nodes; under the joint action of horizontal and vertical loads, such nodes must transmit bending moments and shear forces caused by unbalanced bending moments , its punching capacity is therefore affected to a certain extent by

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