Spring type self-resetting beam column joint

Abstract

The invention discloses a spring type self-resetting beam column joint. The spring type self-resetting beam column joint comprises a steel frame column, a cantilever short beam, a connecting beam, an energy consumption damper, a connecting device and a restoring device. One end of the cantilever short beam is welded with the steel frame column, and the other end of the cantilever short beam is connected with the connecting beam through a connecting device; transverse stiffening rib plates and longitudinal stiffening rib plates are arranged on webs of the cantilever short beam and webs of the connecting beam, recovery devices are arranged between the transverse stiffening rib plates and the cantilever short beam, and energy dissipation dampers, the transverse stiffening rib plates, the longitudinal stiffening rib plates and the recovery devices are arranged on the front side and the rear side of the cantilever short beam and the front side and the rear side of the connecting beam. The energy dissipation dampers comprise upper connecting plates, lower connecting plates and mild steel energy dissipation steel sheets, via holes are formed in the inner sides of the upper connecting plates, a plurality of grooves are formed in the lower surfaces of the upper connecting plates and the upper surface of a transverse plate of the lower connecting plate, and the multiple mild steel energy dissipation steel sheets are inserted into the grooves. The steel structure is high in energy dissipation performance and self-resetting capacity, and connecting parts are convenient 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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