Self-reset friction damping shock mount and damping bridge

Abstract

The invention discloses a self-reset friction damping shock mount and a damping bridge, and relates to the technical field of damping. The self-reset friction damping shock mount comprises a first mount plate, a second mount plate, a supporting face plate, a friction piece, a first damping piece and a second damping piece. The first mount plate is connected with the supporting face plate. The two ends of the friction piece are connected with the end, away from the first mount plate, of the supporting face plate and the second mount plate respectively. The friction piece can slide relative to the supporting face plate and the second mount plate for friction energy consumption and damping. The two ends of the first damping piece are connected with the friction piece and the supporting face plate respectively. The two ends of the second damping piece are connected with the friction piece and the second mount plate respectively. Damping and resetting of the two damping pieces are realized through damping hysteresis. The invention further provides the damping bridge. The self-reset friction damping shock mount and the damping bridge are simple in structure, horizontal energy consumption and reset capacity can be effectively improved, and the mechanical structure of the bridge is not influenced.

Description

technical field [0001] The invention relates to the technical field of shock absorption, in particular to a self-resetting friction damping shock absorbing support and a shock absorbing bridge. Background technique [0002] With the development of modern high-speed railways, the proportion of bridges in railway routes is getting higher and higher. When an earthquake disaster occurs, the bridge is the most vulnerable part; the use of bridge shock-absorbing and isolating bearing devices is a feasible method of shock absorption, and it is also a relatively mature and widely used anti-seismic technology. At present, the main anti-seismic bearing devices in China include anti-seismic basin rubber fixed bearing, lead core rubber bearing and friction pendulum type seismic isolation bearing, etc. [0003] The anti-seismic pot-type rubber fixed bearing has good damping properties, and can isolate the upper and lower seismic movements through shear deformation. It has the advantages ...

AI Technical Summary

Problems solved by technology

However, it will cause the change and uplift of the height of the beam body, which will affect the smoothness of the railway bridge track on the one hand and affect the safety of driving; on the other hand, it will generate additional internal stress and affect the overall mechanical structure of the bridge, especially in simply supported railway beams. It is not suitable to use on long-span continuous beams

At the same time, the spherical radius is large, the structure size is large, and the cost is high

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