Self-centered prefabricated concrete beam-column joint device with top and bottom provided with friction energy dissipation devices

Abstract

The invention discloses a self-centered prefabricated concrete beam-column joint device with the top and bottom provided with friction energy dissipation devices. The self-centered prefabricated concrete beam-column joint device comprises a prefabricated concrete column, a prefabricated concrete beam located on one side of the prefabricated concrete column, and the two friction energy dissipationdevices enabling the prefabricated concrete column and the prefabricated concrete beam to be connected integrally. The two friction energy dissipation devices are arranged on the upper portion and thelower portion of the prefabricated concrete beam correspondingly, each friction energy dissipation device comprises two outer friction fixing plates, outer friction connecting plates integrally connected with the two outer friction fixing plates, two outer friction steel plates connected to the outer friction connecting plate on the upper portion, two inner friction steel plates provided with first friction bolt holes in a reserving mode, and two inner friction end plates enabling the two inner friction steel plates to be connected integrally. The two inner friction steel plates are symmetrically arranged and poured on the two side faces of the prefabricated concrete beam, the two outer friction steel plates are arranged on the outer sides of the inner friction steel platescorrespodningly, and the inner friction steel plates, the outer friction steel plates and the prefabricated concrete beam are connected integrally through friction-type high-strength bolts.

Description

technical field [0001] The invention belongs to the field of civil engineering, and relates to a self-centering prefabricated concrete beam-column node device with a friction energy dissipator on the top and bottom. Background technique [0002] Earthquakes bring extremely serious disasters to human beings. The traditional seismic design adopts the ductility design method, that is, under the action of an earthquake, some structural components yield and fail in advance, but the overall function will not be lost, and most of the seismic energy is dissipated by the plastic deformation of the components after yielding, so as to achieve The purpose of ensuring the safety of the main structure. Although this traditional design method based on bearing capacity has certain reliability in avoiding building damage and even collapse causing casualties, it cannot effectively control the economic damage caused by earthquakes in moderate or strong earthquakes. After most major earthquak...

AI Technical Summary

Problems solved by technology

At present, the auxiliary energy-dissipating components (such as yield angle steel and low-carbon steel energy-dissipating tendons) used at the beam-column joints of this type of structure significantly reduce the energy dissipation capacity and joint stiffness after yielding under repeated reciprocating cyclic loads.

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