Self-reset energy dissipation device

Abstract

The invention discloses a self-reset energy dissipation device which comprises self-reset energy dissipation mechanisms symmetrically arranged on a structure frame. Each self-reset energy dissipationmechanism comprises a fixed pulley, a plurality of steel ropes, a friction energy dissipation component and a self-reset component. The two self-reset energy dissipation mechanisms bear interlayer displacement in opposite directions of the structure frame; under the effect of an earthquake, the friction energy dissipation component can not only bear most of horizontal shear force, but also effectively dissipate earthquake energy to achieve the energy dissipation and shock absorption effects. Under the counteractive force of the self-reset component, the friction energy dissipation component resets; prestress does not need to be applied, and therefore the operation process is simplified.

Description

technical field [0001] The invention belongs to the field of shock absorption of engineering structures and relates to a self-resetting energy consumer. Background technique [0002] In recent years, earthquake disasters have occurred frequently in our country. The traditional structure is difficult to meet the requirements of lateral stiffness, the residual deformation of the structure is large, the energy dissipation capacity is limited, it is difficult to protect its own safety, and the damage of non-structural components is serious. In view of this, various supports are attached to the structure for earthquake resistance. The traditional ordinary support can provide a large lateral stiffness for the structure, but it is prone to overall or local buckling under the reciprocating action of compression, resulting in its brittle fracture and finally seriously affecting the seismic performance of the overall structure, and the plastic deformation of the energy-dissipating sec...

AI Technical Summary

Problems solved by technology

[0004] The existing self-resetting supports mostly use shape memory alloy as the resetting material. The shape memory alloy has better resetting performance, but the resetting performance is affected by temperature, and the price is relatively expensive, which is unfavorable to the economy.

Moreover, the structure of self-resetting supports is complex, and most of them need to be prestressed. The process of applying prestress is too complicated, and the manufacturing precision is high. Not only is the construction inconvenient, but the repair cost is also high.

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