Novel shear type buckling-free energy dissipation support

Abstract

The invention provides a novel shear type buckling-free energy dissipation support. Two inner sleeve supporting core components with a certain gap are arranged in a shear-resistant steel sheet, one end of each supporting core component is connected with an external shear-resistant steel sheet through a plurality of slotted energy dissipation steel plates, and the other end of each supporting corecomponent is connected with an internal shear-resistant steel sheet. When earthquake occurs, the supporting core components at two ends generate relative displacement, therefore, an energy dissipationsteel plate group connected with the supporting core components generate a relative displacement relative to the shear-resistant steel sheet. Evenly-distributed energy dissipation joints exist between the energy dissipation steel plates, the energy dissipation steel plates with the joints deform under the action of external force, when deformation reaches a certain degree, steel bars yield and are damaged, and therefore the purpose of consuming earthquake energy is achieved through repeated deformation of the steel bars under the action of repeated loads. According to the damper, the rigidityand the energy dissipation capacity of the damper are adjusted by changing the number, the thickness, the length and the slotting width of the energy dissipation steel plates, and therefore structural vibration can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of structural engineering, in particular to a shear type non-buckling energy dissipation damper. Background technique [0002] Structural energy dissipation and shock absorption technology is to install an energy dissipation device in the structure, and absorb the energy input by the earthquake through the energy dissipation device, so as to avoid structural damage or collapse. Metal energy dissipation devices dissipate energy through plastic deformation, and mild steel dampers are widely used due to their low yield strength, stable hysteresis performance, and good low-cycle fatigue performance. According to the different energy dissipation mechanisms of mild steel dampers, they can generally be divided into four types: axial yield energy dissipation, such as anti-buckling energy dissipation supports; bending yield energy dissipation, such as X-shaped and triangular steel plate dampers; shear yield energy di...

AI Technical Summary

Problems solved by technology

The conventional shear plate damper prevents buckling under working conditions by welding stiffeners on the shear plate, but the welding process will affect the stability of the shear plate performance and low cycle fatigue resistance

In addition, when the traditional shear-type energy-dissipating support is required to withstand large external forces, the support size will be large, and processing, transportation and installation are very difficult. It is not easy to replace the shearing piece later, the maintenance cost is high, and it is not convenient for secondary use.

Images