Yield-adjustable X-brace energy dissipation device

Abstract

The invention discloses a yield-adjustable X-brace energy dissipation device. Core energy dissipation component sets of the energy dissipation device comprise four energy dissipation steel plate bars and are divided into a first-stage energy dissipation component set and a second-stage energy dissipation component set. The two ends of each energy dissipation steel plate bar are hinged to lug plates fixed to a top plate or bottom plate. In the second-stage energy dissipation component set, the lug plate connected with one end of each energy dissipation steel plate bar is provided with a horizontal strip-shaped groove, and one end of each energy dissipation steel plate bar can slide in the corresponding horizontal strip-shaped groove through a pin. When relative displacement of the upper bottom plate and the lower bottom plate is not large, the first-stage energy dissipation steel plate bars work firstly; when the relative displacement increases and reaches preset target displacement, the pins of the second-stage energy dissipation steel plate bars are in a pressing state, tensile deformation starts to be generated, and energy dissipation is yielded. The displacement in which the second-stage energy dissipation steel plate bars start yield energy dissipation is controlled through control over the lengths of the sliding grooves. The requirements for energy dissipation and shock absorbing of engineering structures in small earthquakes and large earthquakes are met at the same time, and earthquake energy is dissipated in stages.

Description

technical field [0001] The invention relates to an engineering structure damping device, in particular to a yield-adjustable cross-bracing energy dissipator, which belongs to the engineering structure energy dissipation damping and vibration control technology. Background technique [0002] The energy dissipation and shock absorption technology of engineering structures is to install energy dissipation devices in certain parts of the building, through which the energy dissipation devices generate hysteretic deformation to dissipate or absorb the energy input by the earthquake into the structure, so as to reduce the seismic response of the main structure, thereby avoiding The structure is damaged or collapsed to achieve the purpose of shock absorption control. Supported energy dissipator is a common energy dissipating device. The energy dissipating member yields in its entire section when it is under tension and compression in the plane, so as to achieve the purpose of dissip...

AI Technical Summary

Problems solved by technology

Most of the currently known energy dissipators have a single structural shape and energy dissipation form, which cannot meet the shock absorption requirements of small earthquakes and large earthquakes at the same time

Many energy dissipators only function under large earthquakes, and are in an elastic state during small earthquakes. The seismic energy is dissipated by the main structure, causing a certain degree of damage

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