Multi-yield-point metallic shear dampers for multi-hazard and multi-performance objectives

Abstract

The invention relates to the field of building technology, in particular to a multi-yield-point metal shear damper for multi-hazard and multi-performance targets, including a first energy dissipation part and a second energy dissipation part, and the first energy dissipation part is sleeved on the second energy dissipation part. The outer side of the energy-consuming part, and between the first energy-consuming part and the second energy-consuming part, there is a fixing part and a stopper assembly, the first energy-consuming part and the second energy-consuming part are fixedly connected by the fixing part, and the stopper assembly includes a first A stopper and a second stopper matched with the first stopper, the first stopper is connected to one of the first energy-consuming part and the second energy-consuming part, the second stopper is connected to the other, and the second stopper is used for In contact with the first block and push the first block to move in the direction of shear force. When the structure encounters different types and levels of disasters, the present invention can provide multi-level energy dissipation and shock absorption capabilities according to the structural deformation state, meet the multi-performance target requirements of building structures under multiple disasters, improve the structure's seismic performance, and adapt to the structural requirements. Rigidity, bearing capacity and energy dissipation capacity.

Description

technical field [0001] The invention relates to the field of construction technology, in particular to a multi-yield point metal shear damper for multi-hazard and multi-performance targets. Background technique [0002] Metal shear dampers are a common form of damper found in shock absorbing structures. The working principle of the current metal shear damper in the prior art is to use the mild steel as the shear energy dissipation plate, and take advantage of its characteristics of low yield strength and good ductility. Under the action of earthquake, the damper enters yield earlier than the main structure. , so that the cumulative plastic deformation of the mild steel after yielding can be used to achieve the effect of dissipating seismic energy. [0003] Under the multi-load coupling action of wind load and earthquake load, the building structure has multi-performance target design requirements under different disaster levels. Therefore, the damper in the shock-absorbing ...

AI Technical Summary

Problems solved by technology

However, prior art metal shear dampers are stiffer before yielding and significantly less stiff after yielding

Unable to meet the multi-performance target requirements of building structures under multi-hazard conditions

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