Asymmetric U-shaped corrugated double-layer inclined-seam steel plate damper

Abstract

The invention relates to an asymmetric U-shaped corrugated double-layer inclined-seam steel plate damper, and belongs to the technical field of civil engineering energy dissipation and shock absorption. The metal damper is composed of two U-shaped energy dissipation pieces which are horizontally and oppositely arranged, two double-layer inclined-seam steel plates, an upper cover plate and a lowercover plate. Based on the design concepts that multiple safety mechanisms are adopted, energy dissipation elements can be replaced, the shear bearing capacity is improved, out-of-plane buckling is restrained, and multiple shear energy dissipation mechanisms work cooperatively, the limitation of a traditional metal damper is broken through. The combination of the asymmetric design of the U-shaped energy dissipation pieces and the inclined-seam steel plates form a multiple safety mechanism, and the problem that the damper is not prone to generating plastic energy dissipation during small earthquakes is solved. The inclined-seam steel plates yield at multiple positions, the damper is stable in energy dissipation performance, the shear bearing capacity is improved, only energy dissipation parts need to be replaced after the earthquake to recover the function, and economic benefits are obvious. The metal damper develops towards the fabricating direction, replacement is easy and convenient,arrangement modes are various, and the number of the energy dissipation parts can be flexibly increased or decreased according to actual conditions.

Description

technical field [0001] The patent relates to an asymmetrical U-shaped damper with corrugated double-layer steel plates with inclined seams, which can be used to control the seismic response of a structure and improve the seismic performance of a 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 strong earthquakes 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. With the acceleration of the development of our country, the urban population and facilities are becoming more and more concentrated, resulting in more and more high-rise buildings, the traditional anti-seismic strategy is no longer applicable, and the research of new energy dissipation dampers is imperative. The traditional anti-seismic ...

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Problems solved by technology

[0005] The present invention proposes an asymmetrical U-shaped steel damper with twisted double-layered slanted seams, which aims to solve the problems of concentrated yield points, inability to consume plastic energy in small earthquakes, overall damage in large earthquakes, and shocks in existing metal damper structural systems. Afterwards, it needs to be replaced as a whole, and the energy consumption mechanism is single, etc.

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