Damper Plate Replaceable Two-Stage Dissipative Sealed Node Damper

Abstract

The invention relates to a two-stage energy-dissipation sealing joint damper provided with a replaceable damping plate. The two-stage energy-dissipation sealing joint damper provided with the replaceable damping plate comprises a composite elastic body, a column end connecting plate and a beam end connecting plate, wherein the column end connecting plate and the beam end connecting plate are fixedly arranged at the two ends of the composite elastic body correspondingly; and the composite elastic body is in an arc shape, the column end connecting plate and the beam end connecting plate are both made of rectangular steel plates, and bolt mounting holes are formed in the peripheries of the rectangular steel plates of the column end connecting plate and the beam end connecting plate correspondingly. The two-stage energy-dissipation sealing joint damper has the characteristics of being dustproof, resistant to damp and corrosion and capable of being used in outdoor special environments. According to the two-stage energy-dissipation sealing joint damper, various energy dissipation forms are achieved; in the first stage, shearing energy-dissipation discs are broken for energy dissipation; in the second stage, after the shearing energy-dissipation discs are destroyed, memory alloy wire rings and memory alloy strips can be stretched or compressed for energy dissipation, so that the damper is prevented from losing the energy dissipation capacity; and after an earthquake, the shearing energy-dissipation discs can be replaced by opening a sealing cover plate, the two-stage energy-dissipation sealing joint damper can be used repeatedly and is low in maintenance cost, materials are unlikely to be wasted, and the two-stage energy-dissipation sealing joint damper accords with the economical, environment-friendly and sustainable building principle.

Description

technical field [0001] The invention belongs to the field of anti-seismic structures, and in particular relates to a replaceable two-stage energy-dissipating sealed node damper with a damping plate, which is applied to building nodes in special environments. technical background [0002] my country is located in an earthquake-prone area, and the losses caused by earthquake disasters are heavy. In the past ten years of earthquake damage investigation, it has been found that the frame building structure is prone to column end or node damage during strong earthquakes, that is, during earthquakes, The column ends of each story frame first yielded and appeared plastic hinges, forming a weak layer, resulting in the collapse of the structure. The traditional anti-seismic design method of joints is too passive, mainly relying on increasing the cross-sectional size of columns or increasing the reinforcement of beam-column joints, which is easy to cause waste of materials, and it is di...

AI Technical Summary

Problems solved by technology

However, after the earthquake, the damper will be completely damaged, which is a one-time energy consumption, which is easy to cause waste of materials, and does not conform to the principles of economy, environmental protection and sustainable use.

[0008] At present, domestic joint corner dampers mainly include steel-lead laminated joint dampers (such as authorized publication number 103790253A), angle-adjustable fan-shaped lead viscoelastic corner dampers (such as authorized publication number 105155719A) and other invention patents. These inventions use shear lead The rod is broken and deformed to dissipate the energy of earthquake response and wind vibration. After a major earthquake, the damper may be damaged, and it is impossible to achieve two-stage energy consumption.

In addition, the maintenance cost of replacing the damper after the earthquake is high, and it is easy to cause waste of materials

There are many restrictions on the use of diverse and complex building environments, and there is currently no damper plate that can be replaced in a variety of environments at home and abroad. Two-stage energy-dissipating sealed node damper

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