Semi-active anti-overturning device applied to seismic isolation building with large height-width ratio

The invention discloses a semi-active anti-overturning device applied to a seismic isolation building with a large height-width ratio. The semi-active anti-overturning device comprises an overturning sensor and a semi-active anti-pulling assembly. The overturning sensor is used for being arranged between the bottom layer of the shock insulation layer and the top layer of the shock insulation layer and adapting to the shock insulation support so as to detect whether the vertical displacement of the shock insulation layer exceeds the safety limit value or not. The semi-active anti-pulling assembly is used for being arranged between the bottom layer of the shock insulation layer and the top layer of the shock insulation layer and can be switched between an anti-pulling and non-pushing-resisting state and a free telescopic state. When the vertical displacement measured by the overturning sensor exceeds a safety limit value, the semi-active anti-pulling assembly is switched into an anti-pulling and non-anti-pushin