Detachable U-shaped corrugated belt double-layer inclined-slit steel plate damper

Abstract

The invention relates to a detachable U-shaped corrugated belt double-layer inclined-slit steel plate damper, and belongs to the technical field of civil engineering energy dissipation and shock absorption. The metal damper is composed of a plurality of U-shaped energy dissipation parts, double-layer inclined-slit steel plates, an upper cover plate and a lower cover plate. The metal damper is based on the design concepts that multidirectional energy dissipation is achieved, energy dissipation parts are detachable, the shear bearing capacity is improved, out-of-plane buckling is restrained, multiple shear energy dissipation mechanisms work cooperatively, and a double-insurance mechanism is adopted, and the limitation of a traditional metal damper is broken through. U-shaped energy dissipation units are connected in parallel, so that the multidirectional energy dissipation of the damper is effectively realized. Through a reasonable design, the damper can achieve multi-position yield, theenergy dissipation performance is stable, and the shear bearing capacity is greatly improved. The U-shaped energy dissipation parts and the double-layer inclined-slit steel plates dissipate energy together to form the double-insurance mechanism. After an earthquake, the normal use function can be recovered only by replacing the energy dissipation parts. The metal damper develops towards the assembling direction, is easy and convenient to replace and obvious in economic benefit, can be effectively combined with a support, and provides lateral force for the support.

Description

technical field [0001] This patent relates to a detachable U-shaped corrugated belt double-layer steel plate damper with oblique seams, 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 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. [0003] The tradition...

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Problems solved by technology

[0007] The invention proposes a detachable U-shaped corrugated belt double-layer steel plate damper with oblique seams, which aims to solve the existing metal damper structure system with single energy consumption direction, concentrated yield points, small earthquakes that cannot cause plastic energy consumption, and large shocks. The overall damage of the earthquake, the need for overall replacement after the earthquake, the single energy consumption mechanism, and insufficient out-of-plane stability

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