Controllable swing pillar system based on earthquake early warning system

The invention discloses a controllable swinging column system based on an earthquake early warning system, which comprises an opening control device based on an earthquake early warning signal, a bottom plate, an electromagnetic lock system, an ear plate system, a column end rotating shaft constraint device and a column, and is characterized in that the opening control device based on the earthquake early warning signal can receive the earthquake early warning signal through the Internet; and after the earthquake amplitude is judged to reach a certain degree, an early warning control signal is sent to the electromagnetic lock, the electromagnetic lock is started after receiving the signal, the electromagnetic force attracts the bolt to be pulled out of the inner steel bar, and the inner steel bar pops out of the column end rotating shaft under the action of the telescopic spring, so that the column end rotating shaft can freely rotate. Rigid connection can be achieved at ordinary times, a swing column system