A beam-column joint of equal-strength energy-dissipating steel structure

Abstract

The invention discloses a beam-column node of an equal-strength energy-dissipating steel structure, which comprises a vertically arranged H-shaped steel column and an H-shaped steel beam connected to its side. The H-shaped steel column consists of a web of the H-shaped steel column and a vertical The H-shaped steel column flank plates connected to its two ends constitute the main frame of the H-shaped steel column, and two stiffener plates are distributed parallel up and down along the two sides of the web of the H-shaped steel column; the H-shaped steel beam is composed of H-shaped The steel beam web and the H-shaped steel beam side panels vertically connected to its two ends constitute the H-shaped steel beam main frame, and the H-shaped steel beam main frame is connected to the side wall of one of the H-shaped steel column side panels . This kind of joint form can move the plastic hinge outward to make it have good ductile failure characteristics while maintaining the bearing capacity without obvious reduction, which can effectively avoid brittle failure in the joint area, and is especially suitable for the reinforcement and reconstruction of post-earthquake structures.

Description

technical field [0001] The invention relates to a beam-column joint of a steel structure, in particular to a beam-column joint which is applied in the technical field of structural engineering and is especially suitable for multi-high-rise steel structures. Background technique [0002] With the large population of modern cities and the rapid development of the economy, the steel structure has many advantages such as light weight, high strength, good seismic performance, large building space, convenient construction, environmental protection and good comprehensive economic indicators. It has been widely used in steel structure engineering and has become one of the commonly used structural forms of building structures (especially multi-high-rise building structures). As the key part of the steel frame, the beam-column joint connection connects the beam and the column as a whole, which can effectively transmit external loads such as gravity and wind load; under the action of a...

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Problems solved by technology

However, these joints are not ideal joint forms: reinforced joints need to increase the column section in order to meet the "strong column and weak beam", which will inevitably cause uneconomical; weakened joints have the disadvantage that the strength of the beam section cannot be fully utilized and are likely to cause beam weakening. Local stability problems of the flange and web, while the reduction of bearing capacity will increase the lateral deformation of the structure

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