Self-resetting supporting device with energy consumption rod

The self-resetting supporting device comprises an inner steel pipe component, an outer steel pipe component, a sliding component, a force transmission component, a prestress steel strand and the energy consumption bar. The inner steel pipe component comprises an inner steel pipe. The two ends of the inner steel pipe are provided with a first flange and a first connecting part used for being connected with an external structure correspondingly. The outer steel pipe component comprises an outer steel pipe, a first flange plate and a second flange plate, wherein the first flange plate and the second flange plate are sequentially arranged on the outer steel pipe in the axial direction of the outer steel pipe. The sliding component comprises a sliding steel pipe, an L-shaped steel plate, an outwards-extending plate and a third flange plate. The force transmission component comprises a first steel pipe, a second steel pipe and a plurality of force transmission pieces connected with the first steel pipe and the seco