Assembly type soft steel-friction composite displacement type damper and assembly method thereof

Abstract

The invention relates to an assembly type soft steel-friction composite displacement type damper and an assembly method thereof. The assembly type soft steel-friction composite displacement type damper comprises a T-shaped top plate and a T-shaped bottom plate, and the top plate and the bottom plate are arranged in an up-down opposite mode; the top plate and the bottom plate both comprise flange plates horizontally arranged and webs vertically arranged on and connected with the middle parts of the flange plates, and the web of the top plate is connected with the web of the bottom plate throughtwo connecting pieces distributed in the transverse direction side by side; the connecting pieces comprise two rigid slabs symmetrically arranged on the front sides and the rear sides of the webs, friction plates are arranged between the upper ends and the lower ends of the rigid slabs and the webs, and the two rigid slabs, the webs and the friction plates are tightly locked by high-strength bolts in a penetrating mode; a plurality of soft steel rods are arranged on the outer sides of the friction plates, and the soft steel rods fixedly penetrate through the two rigid slabs and the webs in the longitudinal direction. According to the assembly type soft steel-friction composite displacement type damper and the assembly method thereof, the structure design is simple and reasonable, two energy consumption mechanisms of friction energy consumption and soft steel energy consumption are effectively combined, the energy consumption performance is good, the construction is convenient, replacement after an earthquake is simple, and the practicability is high.

Description

[0001] Technical field: [0002] The invention relates to an assembled mild steel-friction composite displacement damper and an assembly method thereof. [0003] Background technique: [0004] The energy dissipation principle of the mild steel damper is to use the excellent plastic deformation ability and good hysteresis performance of mild steel to achieve the purpose of energy dissipation and shock absorption. Under the earthquake, the mild steel damper first enters the elastic-plastic state with the increase of the lateral deformation of the building structure, dissipates the seismic energy, and makes the dynamic response of the structure attenuate rapidly, thereby effectively reducing the possibility and degree of damage to the building structure . The mild steel damper has stable performance and good fatigue performance, but there are certain problems: 1) The mild steel damper is connected to the structure, and after entering the plastic state, a certain residual deformat...

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Problems solved by technology

The mild steel damper has stable performance and good fatigue performance, but there are certain problems: 1) The mild steel damper is connected to the structure, and after entering the plastic state, a certain residual deformation occurs, and the replacement after the earthquake is complicated; 2) The mild steel damper is shaken Afterwards, it is often necessary to replace them all, which is easy to cause waste; 3) Most of the existing mild steel dampers are welded connections, and under the action of reciprocating earthquakes, mild steel is prone to damage due to stress concentration; 4) The energy consumption mechanism is single; 5) After a major earthquake, there will be a series of strong aftershocks. How to quickly restore the seismic capacity and function of structures and components is also a problem that needs special attention in the design of mild steel dampers in the future.

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