Barrel type tension and compression damper

Abstract

The invention belongs to the field of building structure vibration control and particularly relates to a barrel type tension and compression damper. The barrel type tension and compression damper comprises an upper plate, a lower plate, screw holes A, screw holes B, outer arc-shaped energy-consumption steel plates, end plates, locking nuts, a coordination connection reinforcing steel bar, a circular soft steel energy-consumption inner cylinder, inner arc-shaped energy-consumption steel plates, a foamed aluminum energy-consumption material and an elastic adhesive filling material. The barrel type tension and compression damper is a structured formed by the upper plate, the lower plate, the outer arc-shaped energy-consumption steel plates and the end plates in an enclosed manner, the inner arc-shaped energy-consumption steel plates are arranged inside the formed structure in a left-right symmetry manner, the bending radius of the inner arc-shaped energy-consumption steel plates graduallydecreases from the middle to two sides, and the circular soft steel energy-consumption inner cylinder is arranged between the innermost arc-shaped energy-consumption steel plates. The barrel type tension and compression damper can increase the overall rigidity of a building structure when being used in a normal state and can reduce the seismic response of the building structure during an earthquake.

Description

technical field [0001] The invention belongs to the field of vibration control of building structures, in particular to a barrel-type tension-compression damper. Background technique [0002] Metallic yielding dampers are various forms of damping energy dissipators made of mild steel or other soft metal materials. Metals have good hysteretic properties after yielding, and some metals have elastic-plastic hysteretic deformation energy dissipation, including mild steel dampers, lead dampers, and shape memory alloys (SMA) dampers. The mechanism of its vibration control on the structure is to dissipate part of the energy of the structure vibration through the yield hysteresis energy consumption of the metal, so as to reduce the structural response. The mild steel damper is to make full use of the soft steel after entering the plastic stage Good hysteresis characteristics. In 1972, American scholars such as Kelly and Skinner first began to study the use of this property of mild...

AI Technical Summary

Problems solved by technology

After theoretical analysis and experimental research by many scholars at home and abroad, it is confirmed that the mild steel damper has stable hysteresis characteristics, good low-cycle fatigue performance, long-term reliability and is not affected by the environment and temperature. It is a very good damper. Promising energy consumers, all-metal dampers have the advantages of large recoverable deformation, strong damping capacity, durability, corrosion resistance, fatigue resistance, wide operating temperature range and low maintenance costs, and are transmitted to building structures due to earthquakes and other reasons The external energy of the structure is the source of the vibration of the structure, so the energy dissipation properties of the damper will be the key to reducing the vibration response of the structure. Anti-buckling effect, resulting in a significant reduction in energy dissipation capacity

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