A steel pipe friction composite damper

Abstract

The invention discloses a steel pipe friction composite damper. The steel pipe friction composite damper comprises two damping components. The two damping components are of the same structure. Each damping component comprises a connecting plate, a rubber block, an outer steel pipe, an inner steel pipe, an outer steel pipe friction material, an inner steel pipe friction material, a first flange plate I, more than one bolt I, more than one bolt II, a concrete cavity, a through hole I, a through hole II, a cavity, a flange pate II. The damper is arranged in a construction structure, under actionof an earthquake, deformation between floors of a building enables relative dislocation of the inner steel pipe and the outer steel pipe in the damper to occur, through friction energy dissipation andrubber compression and deformation between the inner and outer steel pipes, the aim of dissipating earthquake energy is achieved. Under action of the earthquake, working performance can be adjusted automatically based on inter-floor deformation of the structure. The structure is simple, the force mechanism is clear, and energy dissipation performance is high. Application in multi-story buildingsand high-rise buildings is achieved, application in village house engineering is achieved, and therefore application range is wide.

Description

technical field [0001] The invention relates to a steel pipe friction composite damper, which belongs to the technical field of building energy dissipation and shock absorption. Background technique [0002] Earthquake is a very serious natural disaster. During the earthquake, the surface buildings will move sideways and twist and deform. When the earthquake is relatively strong, they may even collapse, causing huge economic losses and casualties. In order to reduce earthquake disasters in buildings, energy dissipation technology has received extensive attention. [0003] According to the mechanism of energy consumption, the damper is divided into two categories: velocity-dependent type and displacement-dependent type. Among them, the speed-related damper has high cost and poor durability, which leads to its low cost performance; among the displacement dampers, the mild steel damper has stable performance and is less affected by environmental factors, but has higher require...

AI Technical Summary

Problems solved by technology

Among them, the speed-related damper has high cost and poor durability, which leads to its low cost performance; among the displacement dampers, the mild steel damper has stable performance and is less affected by environmental factors, but has higher requirements for machining and welding. This kind of damper is mostly made of steel with low yield point, which has high requirements on materials, and it is often replaced due to excessive plastic deformation after earthquakes, and it cannot be recycled, which is not conducive to energy saving and environmental protection

[0004] Due to the frequent occurrence of domestic earthquakes in recent years, the survey of earthquake damage found that houses in villages and towns were most damaged, and the lack of anti-seismic fortification capacity of houses in villages and towns was the ultimate reason. The high cost of mature energy-consuming products was not conducive to the widespread application of houses in villages and towns. Therefore, the development of low-cost dampers that can be applied to residential buildings in villages and towns has become a key issue in improving the seismic fortification capacity of residential buildings in villages and towns.

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