An energy-dissipating self-resetting steel structure beam-column joint connection device

Abstract

An energy-consuming self-resetting steel structure beam-column node connection device, the device comprises a steel frame column and a short cantilever beam formed by being just connected to one side of the steel frame column, and a connecting beam spliced ​​on the other end of the short cantilever beam, the The flanges and web splices of the connecting beam and the short cantilever beam are connected by energy-consuming connection components, and a U-shaped steel damper is also arranged inside the splicing of the flanges of the connecting beam and the short cantilever beam; A set of anchoring plates are respectively arranged at laterally symmetrical positions, and the upper and lower sides of the steel frame column and the anchoring plate are connected by prestressed steel bars arranged in the horizontal direction. The U-shaped steel damper of the present invention consumes energy at the splicing of the cantilever short beam and the connecting beam, ensuring that the main body of the beam and column remains elastic and not damaged; and the structure is simple, most of which are connected by bolts, the modularity is high, it is easy to disassemble, replace and repair, and the construction is convenient , in line with the development trend of the construction industry; at the same time, prestressed steel bars can provide self-recovery force and have an ideal self-resetting effect.

Description

technical field [0001] The invention relates to the technical field of energy dissipation and shock absorption of building structures, in particular to an energy dissipation self-resetting steel structure beam-column joint connection device. Background technique [0002] In recent years, scholars at home and abroad have successively proposed a new type of energy-consuming self-resetting structure to solve the problem of collapse of buildings due to excessive residual deformation after the earthquake, so that the building has a recovery function and can be restored to normal use after the earthquake. It has received great attention and in-depth research from the international earthquake engineering community. [0003] The steel structure has the advantages of high strength, good seismic performance, and short construction period, and is widely used in various buildings; the beam-column joint is a key component in the steel structure, which ensures the cooperative work of the ...

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Problems solved by technology

[0003] The steel structure has the advantages of high strength, good seismic performance, and short construction period, and is widely used in various buildings; the beam-column joint is a key component in the steel structure, which ensures the cooperative work of the beam-column and makes the structure form However, the traditional beam-column joints of steel structures rely on the plastic deformation of the components themselves to dissipate energy, have poor self-resetting ability, and are prone to plastic deformation in earthquakes and are difficult to repair.

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