Angle-adjustable fan-shaped lead viscoelastic corner damper

Abstract

The invention relates to a building component used for node angle displacement limitation and shock absorption, in particular to an angle-adjustable fan-shaped lead viscoelastic corner damper, and belongs to the field of structure engineering. The angle-adjustable fan-shaped lead viscoelastic corner damper mainly solves the problem that the existing fan-shaped lead viscoelastic corner damper component is only limited to be used at a 90-degree angle beam post node position and is difficult to adapt to the modern building structure form diversification. The angle-adjustable fan-shaped lead viscoelastic corner damper comprises a composite elastic body and two connecting plates, wherein the composite elastic body consists of elastic bodies, shearing steel plates, a cylindrical lead core and angle regulating steel plates; the elastic bodies and the shearing steel plates are alternately laminated; the cylindrical lead core transversely passes through the shearing steel plates and the elastic bodies; the shearing steel plates arranged at the outer side are connected with the angle regulating steel plates through screw bolts; and each elastic body, each shearing steel plate and each angle regulating steel plate are all in a fan shape concentric with the composite elastic body. The angle of the damper can be regulated into four different values, and the angle-adjustable fan-shaped lead viscoelastic corner damper is applicable to building structures with various angles.

Description

technical field [0001] The invention relates to a building component for limiting angular displacement of nodes and shock absorption, in particular to an angle-adjustable fan-shaped lead viscoelastic corner damper, which belongs to the field of structural engineering. Background technique [0002] The traditional anti-seismic structure relies on the resistance of the structure itself. By increasing the cross-section of the column and increasing the reinforcement of the beam-column joints to improve the seismic performance of the structural columns and beam-column joints, this not only causes more material consumption, but also makes the Building self-weight increases, and the loss outweighs the gain. The existing lead viscoelastic damper, which can be used for strengthening beam-column joints, is a composite damper, which uses the plastic deformation of lead after shearing or extrusion yielding and the shear hysteretic deformation of viscoelastic materials to consume can. ...

AI Technical Summary

Problems solved by technology

[0004] The existing fan-shaped lead viscoelastic corner damper components (such as the authorized announcement numbers are CN101736828B and CN101713226B) have fully utilized the energy dissipation effect of the viscoelastic damper under the action of small deformation and the yield displacement of the lead shear and extrusion type damper The advantages of small size and large limit restoring force make it perform well when applied to earthquake response control and wind vibration response control, but it is limited to use at beam-column joints at 90° angles, and the building structure forms are diverse in socialist modernization construction Under the background of globalization and complexity, a single 90° fan-shaped corner damper cannot meet the installation at large-angle beam-column joints or steel structure joints, and the production of multi-angle corner dampers has higher requirements for production technology and costs also more expensive

There is no corresponding fan-shaped corner damper that can be adjusted at home and abroad

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