Anti-torsion energy dissipater with internal collision-friction-deformation three-stage energy dissipation

Abstract

The invention discloses an anti-torsion energy dissipater with internal collision-friction-deformation three-stage energy dissipation, which belongs to the technical field of civil engineering and mechanical engineering. The energy dissipater mainly comprises an outer steel cylinder, an inner steel cylinder, shape memory alloy partition plates, partition steel plates and steel flanges. The energy dissipater is characterized in that the inverse trapezoidal partition steel plates and the trapezoidal shape memory alloy partition plates which are radially and evenly arranged along outer and inner circumferences of the inner steel cylinder and the outer steel cylinder are mutually and staggeredly arranged; the upper flange and the lower flange are provided with steel sliding chutes which can be used for the outer steel cylinder and the inner steel cylinder to insert and slide; the energy dissipater is fixed at the position at which the torsion control needs to be performed through threaded holes on the flanges; and when the upper flange and the lower flange perform relative torsion movement, the partition steel plates and the shape memory alloy partition plates can perform energy dissipation in three modes of internal collision, mutual friction and the deformation of the shape memory alloy partition plates to jointly suppress the torsional vibration of a structure or a member in a plane. The energy dissipater has the advantages of strong anti-torsion energy dissipation ability, low maintenance cost, repeated use, self reset, simple structure and the like.

Description

technical field [0001] The invention belongs to the technical field of civil engineering and mechanical engineering, and relates to an internal collision-friction-deformation three-stage energy consumption and anti-torsion energy dissipator. Background technique [0002] Every violent earthquake will cause huge loss of life and property to human beings. The traditional anti-seismic design is to resist earthquake action by enhancing the stiffness of the building itself, that is, relying on the structure itself to store and consume seismic energy to meet the structural anti-seismic fortification standards. Under these conditions, the safety requirements are often not met, and the energy dissipation and shock absorption technology provides a reasonable and effective way for structures to resist earthquakes. The vibration reduction technology of passive energy dissipation dampers is relatively mature. However, as a passive control device, durability is a common problem in curre...

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Problems solved by technology

[0006] The invention provides an internal collision-friction-deformation three-stage energy consumption and anti-torsion energy dissipator, the purpose of which is to solve the problem of residual deformation, poor durability, only axial vibration reduction ability and limited energy dissipation ability of existing passive dampers And other issues

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