A curved steel plate node damper with replaceable damping plate

Abstract

The invention relates to an arc-shaped steel plate node damper with a replaceable damping plate. The arc-shaped steel plate node damper comprises a composite elastic body, pillar end upper portion connecting parts, pillar end lower portion connecting parts and beam end connecting parts, wherein the pillar end upper portion connecting parts, the pillar end lower portion connecting parts and the beam end connecting parts are arranged at the two ends of the composite elastic body correspondingly. The composite elastic body is an arc-shaped device, the pillar end upper portion connecting parts, the pillar end lower portion connecting parts and the beam end connecting parts are rectangular steel plates, beam end fixing bolt ports are formed in the periphery of each beam end connecting steel plate, and pillar end fixing plate bolt ports are formed in the peripheries of the pillar end upper portion connecting steel plates and the pillar end lower portion connecting steel plates correspondingly. According to the arc-shaped steel plate node damper with the replaceable damping plate, the problems that after an earthquake, an existing damper is completely damaged and used at a time, maintenance cost is high, and materials are easy to waste are solved; after the earthquake, a cutting energy-consumption disc can be replaced, repeated using is achieved, maintenance cost is low, and the materials are not prone to being wasted; and the arc-shaped steel plate node damper can be directly installed at a beam pillar node, operating is easy, the application range is wide, and the damper is simple in structure, small in size and low in cost and does not occupy excessive service spaces.

Description

technical field [0001] The invention provides a shock-absorbing and energy-consuming device that can be recycled for building nodes, and in particular relates to an arc-shaped steel plate node damper with a replaceable damping plate, which is applied to the field of anti-seismic structures. [0002] technical background [0003] Our country is located in an earthquake-prone area, and the losses caused by earthquake disasters are very heavy. In the past ten years of earthquake damage investigation, it has been found that the frame building structure is prone to damage at the column ends and joints during strong earthquakes, that is, during an earthquake, the frame column ends first yield and appear plastic hinges, resulting in the collapse of the structure. The traditional joint seismic design method is too passive, mainly relying on increasing the section size of the column or increasing the reinforcement of the beam-column joint, which is easy to cause waste of materials, an...

AI Technical Summary

Problems solved by technology

These all-metal dampers have the advantages of strong damping capacity and good fatigue resistance. However, the previous all-metal dampers mostly relied on shearing lead cores or relying on friction to consume node energy. After a large earthquake, the dampers are prone to damage, and the dampers cannot be replaced. , the damper is for one-time use, and the energy consumption effect is small during the subsequent aftershocks, so it is impossible to guarantee that the node position will not be damaged, and the maintenance cost of replacing the damper after the earthquake is high, which is easy to cause waste of materials, which is not in line with economical, environmentally friendly and sustainable buildings. in principle

At present, there is no arc-shaped steel plate node damper with replaceable damping plate at home and abroad.

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