Asymmetric U-shaped belt corrugated perforated steel plate damper

Abstract

The invention relates to an asymmetric U-shaped belt corrugated perforated steel plate damper, and belongs to the technical field of civil engineering energy dissipation and shock absorption. The metal damper comprises two U-shaped energy dissipation parts which are horizontally and oppositely arranged, two perforated steel plates, an upper cover plate, and a lower cover plate. According to the asymmetric U-shaped belt corrugated perforated steel plate damper, based on the design concepts that multiple safety mechanisms are adopted, energy consumption elements can be replaced, the shear bearing capacity is improved, out-of-plane buckling is restrained, and multiple shear energy consumption mechanisms work cooperatively, the limitation of a traditional metal damper is broken through. The asymmetric design of the U-shaped energy dissipation parts is combined with the perforated steel plates to form the multiple safety mechanisms, so that the problem that the damper is not prone to generating plastic energy dissipation and needs to consume energy of a main body structure in a small vibration is solved. Therefore, the perforated steel plates can yield at multiple positions, the damperis stable in energy consumption performance, the shear capacity is improved, only energy consumption components need to be replaced after a vibration to recover the function, and economic benefits areobvious. The asymmetric U-shaped belt corrugated perforated steel plate damper develops towards the assembling direction, replacement is easy and convenient, arrangement modes are various, and the number of the energy consumption components can be flexibly increased or decreased according to actual conditions.

Description

technical field [0001] The patent relates to an asymmetric U-shaped steel plate damper with corrugated openings, which can be used to control the seismic response of the structure, thereby improving the seismic performance of the main structure, and belongs to the technical field of energy dissipation and shock absorption in civil engineering. Background technique [0002] Earthquake is a natural disaster, which is sudden and destructive. The occurrence of a strong earthquake may cause huge economic losses and casualties. my country is an earthquake-prone country, and most of the first-tier cities are in the earthquake zone. However, with the acceleration of my country's development, the urban population and facilities have become more and more concentrated, resulting in more and more high-rise buildings, and the traditional anti-seismic strategies are no longer applicable. [0003] The traditional anti-seismic strategy is to achieve the function of resisting earthquake act...

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Problems solved by technology

[0005] The present invention proposes an asymmetrical U-shaped steel plate damper with corrugated openings, aiming to solve the problems of concentrated yield points in the existing metal damper structure system, plastic energy consumption that cannot occur in small earthquakes, overall damage in large earthquakes, and the need for integral dampers after earthquakes. Problems such as replacement and single energy consumption mechanism

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