Bidirectional torsional lead shear damper

Abstract

The invention relates to a bidirectional torsional lead shear damper, and belongs to the technical field of seismic resistance and wind resistance of civil engineering. The bidirectional torsional lead shear damper is mainly characterized in that: a metal material such as lead or a high damping solid material is filled among sleeved steel hollow cylinders and is used as a damping layer; a large amount of lead is embedded into a hollow part between two layers of cylinders; the upper and lower ends of the steel hollow cylinders are fixed together with a bearing plate through bolts; a hollow part between an inner steel hollow cylinder and an outer steel hollow cylinder is a spiral part which forms opposite spiral angles; the inner and outer steel hollow cylinders can be reversely rotated in opposite directions, namely can generate relatively-torsional deformation according to loads along the axial directions of the steel hollow cylinders, so that a lead damping layer which is embedded into the hollow part between the inner and outer steel hollow cylinders is sheared; and hollow constraint steel is designed according to opposite angles, so that the relatively-torsional deformation degree of the damper under the action of axial loads can be amplified, and input vibration energy can be dissipated effectively.

Description

technical field [0001] The invention relates to a two-way torsional lead shear damper, which belongs to the technical field of anti-seismic and wind resistance of civil engineering. Background technique [0002] Energy dissipation and shock absorption technology is an effective structure control technology, which consumes the input energy of earthquake or wind vibration by installing energy dissipation and shock absorption devices at appropriate parts of the structure, so as to reduce the dynamic load of structures such as earthquakes and strong winds. The dynamic response under the action can achieve the purpose of protecting the building structure. Lead damper is a common energy-dissipating and shock-absorbing device, because lead has good plastic deformation ability, its yield displacement is small, and its yield energy dissipation capacity is strong. However, traditional lead dampers generally use relative translational displacement to cause plastic deformation of le...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a two-way torsional lead shear damper, which solves the problem of lead sealing caused by excessive pressure in the cylinder caused by extrusion in the traditional lead damper utilizing relative translational displacement, and reduces the Energy consumption performance, through the present invention, the transformation from relative translational displacement to relative rotational displacement is realized so that lead undergoes plastic deformation to consume energy

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