Steel-concrete composite structure pier suitable for high-intensity area and construction method of steel-concrete composite structure pier

The invention discloses a steel-concrete composite structure pier suitable for a high-intensity area and a construction method of the steel-concrete composite structure pier, and relates to the field of bridge construction. The structure pier comprises a pier supporting column, a reinforcement cage is arranged in the pier supporting column, the reinforcement cage comprises main reinforcements and stirrups, a cavity surrounded by the reinforcement cage is formed in the pier supporting column, steel plates are fixed to the inner side walls of the cavity, shear keys are fixed to the steel plates, and the shear keys are inserted into concrete and fixedly connected with the reinforcement cage. Through arrangement of the shear keys, the steel plates and the concrete interact, and the bearing capacity of the cross section of the pier is improved; the arrangement of the inner cavity provides space for the arrangement of the steel plates, the dead weight of the pier is reduced, and the structural response of the pier