Novel constructional column

The invention discloses a novel constructional column which comprises a concrete constructional column arranged between an upper floor slab and a current floor slab, and constructional column longitudinal bars are arranged in the concrete constructional column. Sleeves are pre-embedded in the positions, at the concrete constructional columns, of the upper floor and the current floor, the upper ends of constructional column longitudinal bars upwards and continuously penetrate through the sleeves of the upper floor to the position above the upper floor, and the lower ends of the constructional column longitudinal bars are connected with the upper ends of constructional column longitudinal bars, continuously penetrating through the sleeves of the current floor, of the next floor. The floor slab comprises a beamless floor slab and a beam slab type floor slab. According to the novel constructional column provided by the invention, the connection between the constructional column and the floor slab is more stable,