Friction pendulum support capable of controlling state switching of shear pin based on speed

The utility model relates to the technical field of bridge supports, in particular to a friction pendulum support based on speed control shear pin state switching, which comprises an upper support plate, a limit ring fixedly mounted at the bottom of the upper support plate, and a lower support plate fixedly mounted in the limit ring. A middle support plate with the top face making contact with the bottom wall of the upper support plate is placed on the top of the lower support plate, the lower support plate is placed on the bottom plate, the limiting ring is fixedly connected with the upper support plate through a shear pin, and a speed controller with one end fixedly connected with the bottom plate is fixedly installed on the lower support plate. When an earthquake occurs, the speed controller rapidly locks the plane sliding pair located between the lower support plate and the bottom plate, horizontal force is transmitted to the shear pin, when the horizontal force is larger than designed horizontal force, t