Separated transition pier structure for full rigid frame system bridge and construction method

The invention discloses a separated transition pier structure for a full rigid frame system bridge and a construction method.The transition pier is of a reinforced concrete structure and connected between a main beam and a bearing platform, the transition pier comprises two pier column assemblies oppositely arranged in the bridge direction, and the two pier column assemblies are fixedly connected with the main beam; the prestressed ducts are arranged on the two pier column assemblies, and the prestressed stranded wires penetrate through the prestressed ducts and are tensioned, so that the prestressed transition pier is formed. According to the separated transition bridge pier structure, on the premise that the vertical rigidity is guaranteed, the rigidity of the transition bridge pier in the bridge direction is reduced, the stress of the transition bridge pier in a full rigid frame system is improved, and the application range of the rigid frame system is widened; according to the construction method for temp