A spring-type self-resetting beam-column joint

Abstract

The invention discloses a spring-type self-resetting beam-column node, which comprises a steel frame column, a cantilever short beam, a connecting beam, an energy dissipation damper, a connecting device and a recovery device; one end of the cantilever short beam is welded to the steel frame column, and the cantilever short beam The other end of the beam is connected to the connecting beam through a connecting device; transverse stiffening ribs and longitudinal stiffening ribs are arranged on the web of the cantilever short beam and the connecting beam, and a recovery device is arranged between the transverse stiffening rib and the cantilever short beam. The front and rear sides of the short beam and connecting beam are equipped with energy dissipation dampers, transverse stiffeners, longitudinal stiffeners and recovery devices; the energy dissipation dampers include upper connecting plates, lower connecting plates and mild steel energy dissipating steel sheets, The inside of the upper connecting plate is provided with through holes, the lower surface of the upper connecting plate and the upper surface of the transverse plate of the lower connecting plate are provided with a number of grooves, and a number of mild steel energy-dissipating steel sheets are inserted in the grooves. The steel structure of the invention has strong energy dissipation performance and strong self-resetting ability, and the connecting parts are easy to disassemble and repair.

Description

technical field [0001] The invention relates to the technical field of energy dissipation and shock absorption of building structures, in particular to a spring-type self-resetting beam-column node. Background technique [0002] Several major earthquakes over the years have shown that human beings are still facing the full threat of earthquakes. Scholars at home and abroad have successively proposed new self-resetting structures to solve the problems of excessive residual deformation and high repair costs of buildings after earthquakes, so that buildings have self-resetting structures. The reset function can restore normal use after an earthquake. [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 traditi...

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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 steel beam-column joints have weak energy dissipation capacity and poor self-resetting ability, and are prone to irreparable damage in earthquakes

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