Self-recovery type energy dissipation support and energy dissipation method thereof

Abstract

The invention relates to a self-recovery type energy dissipation support. The support comprises a middle positioning plate and self-recovery units symmetrically arranged on the left side and the rightside of the middle positioning plate. Each self-recovery unit comprises a connecting joint, a supporting core component, an outer sleeve steel pipe, a sliding bearing plate, an energy dissipation steel bar, a supporting frame, a shape memory alloy bar and a limiting block. The inner end of the outer sleeve steel pipe is fixed with the middle positioning plate. The connecting joint, the supportingcore component, the sliding bearing plate, the energy dissipation steel bar, the supporting frame and the middle positioning plate are sequentially connected from outside to inside, the supporting core component, the sliding bearing plate, the energy dissipation steel bar and the supporting frame are located in the outer sleeve steel pipe, and the middle of the supporting core component penetrates through the outer end of the outer sleeve steel pipe. The limiting block for preventing the sliding bearing plate from sliding outwards is arranged on the inner wall of the outer sleeve steel pipe.The shape memory alloy bar is arranged between the outer end of the outer sleeve steel pipe and the sliding bearing plate. The invention further relates to an energy dissipation method of the self-recovery type energy dissipation support. The structure is simple, construction is convenient, and the support belongs to the field of building energy dissipation and shock absorption structures.

Description

technical field [0001] The invention relates to a building energy-dissipating and shock-absorbing structure, in particular to a self-restoring energy-dissipating support and an energy-dissipating method for the self-recovering energy-dissipating support. Background technique [0002] With the development of urbanization in our country, how to resist the damage and destruction of engineering structures caused by natural disasters has become a problem that engineers need to pay attention to and a key task in the engineering design process. [0003] At present, the earthquake resistance of building structures generally adopts increasing the damping of the structure and setting up isolation layers to dissipate the energy of the earthquake on the structure. The traditional buckling-resistant bracing members are mainly composed of internal core materials, external restraint Composed of sliding interface, it has both the functions of ordinary steel support and metal energy dissipat...

AI Technical Summary

Problems solved by technology

[0004] In fact, due to the large yield bearing capacity of the traditional buckling-constrained brace, when the earthquake force is small, the braced member cannot enter the buckling state in time, and cannot exert the energy dissipation capacity of the member

When the earthquake force is greater, the supporting member enters a buckling state, and the peripheral nodes connected to the member are severely damaged and the residual deformation is relatively large. It is difficult and costly to repair the main structure after the disaster, which is not conducive to post-disaster reconstruction work and production order recovery

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