Self-resetting prefabricated concrete beam-column joint device capable of replacing top-bottom frictional energy consuming device

Abstract

The invention discloses a self-resetting prefabricated concrete beam-column joint device capable of replacing a top-bottom frictional energy consuming device. The self-resetting prefabricated concretebeam-column joint device comprises a prefabricated concrete column, a prefabricated concrete beam and two frictional energy consuming devices. The prefabricated concrete beam is located on one side of the prefabricated concrete column, and the prefabricated concrete column and the prefabricated concrete beam are connected as a whole by the two frictional energy consuming devices. The two frictional energy consuming devices are separately arranged on the upper part and the lower part of the prefabricated concrete beam, each frictional energy consuming device comprises an outer friction end plate, two outer friction steel plates, two inner friction steel plates and an inner friction end plate. The outer friction end plate is connected to the prefabricated concrete column, the two outer friction steel plates reserved with third friction bolt holes are connected to the outer friction end plate, the two inner friction steel plates reserved with first friction bolt holes and first fixationbolt holes are fixed to the prefabricated concrete beam, and the two inner friction steel plates are connected together by the inner friction end plate. The self-resetting prefabricated concrete beam-column joint device can consume energy of the action of an earthquake, and eliminate or reduce residual deformation of a prefabricated reinforced concrete structure under the action of the earthquake.

Description

technical field [0001] The invention belongs to the field of civil engineering, and relates to a self-resetting prefabricated concrete beam-column node device that can replace top and bottom friction energy dissipators. 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 earth...

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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