Disc-shaped memory alloy damper

Abstract

The invention discloses a disc-shaped memory alloy damper. The disc-shaped memory alloy damper comprises a wood column and a wood beam connected with the wood column and is characterized in that a base is connected to a corner where the wood column is connected with the wood beam, a rotary disc which can rotate along the base is arranged in the base, and the base is fixed on the inner side of the wood column through a vertical connecting steel plate and a wood column hoop; the rotary disc is respectively connected with the vertical connecting steel plate and the wood beam through an L-shaped fixing steel plate, the rotary disc is connected with the bottom surface of the wood beam through a rigid tie bar, a super-elasticity shape memory alloy wire is arranged at the gap between the base and the rotary disc, and the rotary disc is driven to move in a reciprocating manner through the vertical reciprocating movement of the rigid tie bar to allow the super-elasticity shape memory alloy wire to be repeatedly stretched and reset to bear the internal force the wood column and the wood beam. The disc-shaped memory alloy damper has the advantages that a node reinforcing manner is used to limit interlayer sidesway, the energy consumption and self-resetting ability of the structure under earthquake action are increased evidently, building inclination and collapse caused by the dynamic response generated by vibration, and secondary rectification and reinforcement of a building after the earthquake is avoided.

Description

technical field [0001] The invention relates to the field of anti-shock control and disaster prevention and mitigation of ancient wooden structures and modern wooden structures. Specifically, it is a disk shape memory alloy damper, which meets the needs of traditional wooden ancient buildings and modern wooden structures for earthquake resistance and disaster reduction. Background technique [0002] Chinese ancient wooden structures have a long history and spread all over the country, containing valuable traditional construction skills and architectural culture. Existing ancient buildings include the Forbidden City in Beijing, the Wooden Pagoda in Ying County, Shanxi, the Chengde Mountain Resort, and the Dule Temple in Ji County. The beam-to-column connection of wooden structures in ancient buildings is mainly mortise and tenon joints, that is, the beam ends are made into mortise and tenon joints, and the column ends are made into mortise and tenon joints. The mortise and t...

AI Technical Summary

Problems solved by technology

At present, dampers based on viscoelastic materials, viscous fluids, mild steel and other materials are mostly developed and applied, but dampers made of such materials still have many disadvantages, such as easy aging of viscoelastic materials, viscous damping The re-maintenance cost of the damper is high, and the plastic residual deformation of the mild steel damper is large, etc.

In addition, the use of friction dampers for reinforcement is also a common type, which has good and reliable energy dissipation capacity, and the energy dissipation performance is less affected by the load size, loading frequency and number of loading cycles, but the friction energy dissipation of friction dampers There is a large residual deformation after that, and it cannot self-reset

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