Self-centered prefabricated concrete beam-column joint device with top and bottom provided with friction energy dissipation devices
A prefabricated concrete, friction energy dissipator technology, applied in building components, earthquake resistance, building types, etc., can solve problems such as energy dissipation capacity and joint stiffness reduction, achieve small residual displacement, easy to repair and quickly put into use, reduce Effects of Economic Loss
Inactive Publication Date: 2018-09-14
SOUTHEAST UNIV
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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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[0036] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0037] Such as figure 1 As shown, in the self-centering precast concrete beam-column node device with friction energy dissipator on the top and the bottom of the present invention, the main component includes a precast concrete column 1, a precast concrete beam 2, and the connecting member includes a friction loss device with the same upper and lower structure of the node. Energy devices and prestressed tendons 11 that provide self-centering forces for nodes. Under earthquake action, the prestressed tendons 11 in the self-centering precast concrete beam-column joints can provide self-centering force to eliminate the residual deformation of the joints, and the friction energy dissipators arranged at the beam-column joints can consume a large amount of seismic energy, avoiding prefabricated The main structural components such as beams and col...
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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...
Claims
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Login to view more IPC IPC(8): E04B1/21E04B1/98E04H9/02
CPCE04B1/215E04H9/021
Inventor 黄林杰周臻田会文司怡刘濠仇健
Owner SOUTHEAST UNIV
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