The invention discloses a prefabricated fabricated
pier suitable for a moderate-strong earthquake area and a construction method of the prefabricated fabricated
pier. The prefabricated fabricated piercomprises a bearing platform, a
pier body, a steel reinforcing cage, a cover beam and prestressed steel bars. The bearing platform is fixed on the top surface of a
pile foundation. The steel reinforcing cage is arranged in the pier body. The bottom of the steel reinforcing cage is fixedly connected with the bearing platform. The top of the pier body is fixedly connected with the cover beam. The four prestressed steel bars are distributed in a rectangular shape. One ends of the prestressed steel bars are located in the bearing platform, and the other ends of the prestressed steel bars are located at the top of the cover beam. The steel reinforcing cage comprises a bearing platform steel reinforcing cage and a pier body steel reinforcing cage. The pier body steel reinforcing cage comprisesan energy dissipation
steel bar, a longitudinal bar and a
stirrup. The pier body comprises common concrete, a bottom UHPC sleeve, a transition UHPC sleeve, a steel plate and a prefabricated segment. According to the prefabricated fabricated pier suitable for the moderate-strong earthquake area and the construction method of the prefabricated fabricated pier, the technical scheme of combination ofthe UHPC sleeves and the common concrete, combination of consolidation and assembling and combination of part of the unbounded energy dissipation
steel bar and the steel plate is adopted, and the prefabricated fabricated pier has the advantages of low damage under the earthquake action,
high energy dissipation ability, uniform local
stress distribution and the like, and can be applied to bridges in the moderate-strong earthquake area.