Damper suitable for step load and using method

Abstract

The invention relates to a damper suitable for a step load and a using method. The damper comprises a moving part and a fixed part, wherein the fixed part is fixedly mounted on a structural member; the moving part comprises a top steel plate, a hollow steel pipe, bent plates and a bottom sliding plate; the fixed part comprises a steel wall and a bottom steel plate; the steel wall is fixedly mounted on the bottom steel plate; the top steel plate covers the upper end of the steel wall; the top steel plate can move transversely or longitudinally relative to the fixed part; the upper surface of the top steel plate is connected with the structural member; the hollow steel pipe is positioned in the center in the steel wall and is mounted in the middle of the lower surface of the top steel plate; the bottom sliding plate is mounted at the lower end of the hollow steel pipe and is positioned in the center in the steel wall; and the bent plates are mounted on the peripheral side of the hollow steel pipe. The damper can have energy consumption effects in different directions according to the arrangement mode and the size of the bent plates, and is suitable for dynamic loads with different strengths; and the moving part and the fixed part are not fixedly connected, and the moving part can be replaced when being damaged or failed.

Description

technical field [0001] The invention relates to the field of structural control systems (damping systems), in particular to a damper suitable for step loads and a usage method. Background technique [0002] As infrastructure ages and construction costs increase, engineers are beginning to attempt to extend the life of structures to achieve greater sustainability. Structural components of infrastructure such as bridges, buildings, and piping systems are often subject to vibrations caused by dynamic loads such as earthquakes and wind. Such vibrations need to be effectively controlled to ensure the sustainability and serviceability of the infrastructure. Dynamic loads may lead to damage and destruction of structural components, which will have adverse effects on the structure. [0003] The traditional method of vibration reduction is to provide greater stiffness to the system during the design phase of the structure. However, considering material and cost issues, only a small...

AI Technical Summary

Problems solved by technology

However, most of these measures do not take into account the contraction and expansion of structures, especially bridges, and temperature loads that can cause fatigue in metal dampers and reduce their performance and service life

In addition, most dampers (passive dampers) are only suitable for earthquakes of a certain magnitude

However, when the seismic load intensity is too large or too small, the damper may fail, or it may not work properly because its stiffness is too large

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