Assembly-type variable-damping variable-stiffness viscoelastic damper and anti-seismic method thereof

Abstract

The invention discloses an assembly-type variable-damping variable-stiffness viscoelastic damper and an anti-seismic method thereof. The damper comprises two end viscoelastic damper bodies, the two end viscoelastic damper bodies are arranged coaxially, and a plurality of viscoelastic damper units are connected in series between the two end viscoelastic damper bodies in the axial direction of the two end viscoelastic damper bodies. Each end viscoelastic damper body comprises an end outer barrel and an end inner barrel. A viscoelastic material layer is arranged between the inner wall of each endouter barrel and the outer wall of the corresponding end inner barrel. Each viscoelastic damper unit comprises a unit outer barrel and a unit inner barrel. A viscoelastic material layer is arranged between the inner wall of each unit outer barrel and the outer wall of the corresponding unit inner barrel. Each end outer barrel and the corresponding unit outer barrel as well as the every two unit outer barrels are detachably connected to form a rigid outer barrel of the assembly-type variable-damping variable-stiffness viscoelastic damper. Each end inner barrel and the corresponding unit innerbarrel as well as the every two unit inner barrels are elastically connected through elastic connecting pieces.

Description

technical field [0001] The invention relates to a shock absorber, in particular to an assembled variable damping and variable stiffness viscoelastic shock absorber, which belongs to the technical field of energy consumption and shock absorption. Background technique [0002] Under the action of wind vibration and strong earthquake, the building structure must meet the requirements of comfort and "not falling down after a big earthquake". The building structure must have good energy consumption and deformation capacity, while traditional building structures rely on the structure itself to consume energy and provide deformation. , the ability is more limited. Setting shock absorbers to consume energy is an economical and feasible method to reduce the wind vibration and earthquake response of structures. [0003] The existing viscoelastic shock absorbers generally can only provide fixed stiffness and damping performance, and cannot be adjusted according to the required stiffne...

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Problems solved by technology

[0005] At the same time, the existing viscoelastic shock absorbers are relatively large in size, and the forming molds and high-temperature and high-pressure vulcanizing machines required in the manufacturing process need to be large in size, and the recycling rate of the viscoelastic shock absorber forming dies is low. It is easy to cause waste of resources, uneconomical processing and manufacturing, and complicated processing

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