A Multiple Energy Dissipation Adaptive Collision Type Tuned Mass Damper

Abstract

The invention relates to a multiple-consumption self-adaptive collision type tuned massed damper. The damper comprises a peripheral protection unit, a vertical vibration unit, a collision gap self-coordination unit and a suspension tuned massed damping unit, wherein the vertical vibration unit is fixedly arranged at the upper end of the peripheral protection unit; the collision gap self-coordination unit is arranged in an accommodating cavity, and the upper portion of the collision gap self-coordination unit is provided with a collision cavity; and the suspension tuned massed damping unit comprises an outer massed ball, an inner massed ball and a plurality of collision energy consumption heads, a spherical cavity is formed in the center of the outer massed ball, the outer massed ball is arranged in the collision cavity, and the upper end of the outer massed ball is connected to the vertical vibration unit through a connecting component; and the inner massed ball is suspended in the spherical cavity of the outer massed ball through elastic components. The multiple-consumption self-adaptive collision type tuned massed damper has the characteristics of multiple collision nonlinear energy consumption and excitation strength adaption, a high-rise building structure dynamic response suppression effect under an earthquake and wind load effect is remarkable, and the multiple-consumption adaptive collision type tuned massed damper is applicable to structures with limited spaces, is remarkable in vibration suppression effect and good in economic and social benefit.

Description

technical field [0001] The invention belongs to the field of vibration control of civil engineering structures, and in particular relates to a multi-energy-consuming self-adaptive collision-type tuned mass damper. Background technique [0002] With the rapid development of social economy, the size of building structures is increasing day by day, extending from high-rise buildings to super high-rise buildings. At the same time, threats to tall buildings such as seismic action and wind loads are increasing day by day. In recent years, in the previous major earthquakes and wind disasters, accidents of structural collapse and damage occurred frequently, and the economic losses were incalculable. Therefore, the development and application of structural vibration reduction technology is an inevitable trend. [0003] Passive control technology has the characteristics of maturity, high cost performance, high reliability and easy maintenance, and is widely used in structural vibrat...

AI Technical Summary

Problems solved by technology

Among them, the collision damper and the suspended mass pendulum damper are two common vibration reduction control devices, and many obvious defects have been found in practice tests: 1) The mass of the collision damper itself is too large, which has an adverse effect on the main structure; 2 ) There is a noise pollution problem during the collision process; 3) The single tuning function of the suspended mass pendulum damper lacks an energy dissipation mechanism; 4) The single tuning device has extremely high requirements on the accuracy of the control frequency, and the vibration reduction frequency band is narrow

[0004] Patent CN206681188U discloses a suspended tuned mass damper, including a suspension tube and a damper body, the upper end of the suspension tube is hinged on the main structure of the building, the lower end of the suspension tube is connected to the damper body, and the main structure of the building is fixed The limit sleeve, the damper body is placed in the limit sleeve, the damper body is spherical, and the upper end of the suspension tube is fixed on the top of the damper body, the damper body is provided with a damper inner cavity, and the damper inner cavity is set There are several energy-dissipating particles for energy dissipation, but the damper cannot perform multiple collision nonlinear energy dissipation, and has limited suppression effect on the dynamic response of high-rise building structures under earthquake and wind loads

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