Viscous-plastic energy-dissipation damping support

Abstract

A viscous-plastic energy-dissipation damping support belongs to the technical field of energy dissipation and damping of a building structure and comprises a first pre-bending steel plate strip and a second pre-bending steel plate strip which are same in shape and are up-and-down wave-shaped along the length direction, the wave trough of the first pre-bending steel plate strip and the wave crest of the second pre-bending steel plate strip are connected with each other, sleeves are sheathed outside the first pre-bending steel plate strip and the second pre-bending steel plate strip along the length directions of the first pre-bending steel plate strip and the second pre-bending steel plate strip, support blocks are arranged between the sleeves and the pre-bending steel plate strips, and viscoelastic bodies are filled between the sleeves and the pre-bending steel plate strips and between the two pre-bending steel plate strips; when the support is stretched and compressed, the viscoelastic bodies deform to consume the earthquake energy of an input structure; when the support deforms greatly, the pre-bending steel plate strips yield, also can consume the earthquake energy and are symmetrical; and when the pre-bending steel plate strips are pressed, the lateral forces counteract, the demands on the rigidity of the sleeves are alleviated; and the support sufficiently utilizes the energy consumption capability of the viscoelastic bodies, thus being strong in energy consumption capability and having certain compression resistant rigidity.

Description

technical field [0001] The invention relates to a building structure component, in particular to a viscoplastic energy-dissipating shock-absorbing support. Background technique [0002] Structural energy dissipation refers to adding dampers to the building structure to consume the seismic energy input into the building structure, thereby reducing the seismic response of the structure. These dampers are classified into displacement-dependent dampers, velocity-dependent dampers, and displacement-velocity-dependent composite dampers. Displacement type dampers, including friction dampers and mild steel dampers, these dampers dissipate seismic energy through friction or yield hysteresis. Velocity-type energy-dissipating dampers, including viscoelastic dampers and viscous liquid dampers, dissipate energy through the deformation of viscoelastic materials or the flow of viscous liquids. [0003] Displacement-velocity-dependent dampers, also known as hybrid dampers, combine the cha...

AI Technical Summary

Problems solved by technology

Its disadvantages: (1) When the support is under tension, the viscoelasticity has a small shear deformation, and the energy dissipation capacity is relatively poor; (2) When the core is bent under compression, the core will bend the casing, and the casing needs to be bent. Larger bending stiffness; (3) When the core is bent, the casing will slightly swing in the direction out of the plane of the frame, which will affect the reliability of the support; (4) When the core is compressed, there will be a large gap between the stiffener and the core. Large friction, affecting the reliability of the support

Images