The invention belongs to the field of
bridge engineering, and particularly relates to a prestressed segment assembled
pier with SMA energy-consuming reinforcing steel bars at the bottom and an assembling method. The structure comprises a bearing platform, prestressed steel bars,
reinforced concrete segments, SMA energy-consuming steel bars, steel base plates, rubber pads,
steel bar connectors and anchoring devices, wherein a
reinforced concrete bottom section is connected with a bearing platform in the
pier, a layer of rubber pad with double functions of
energy consumption and protection is placed between the bottom section and the bearing platform, and the upper side and the lower side of the rubber pad are each provided with a steel base plate. Longitudinal bars in the bottom section are connected with SMA energy dissipation steel bars through
steel bar connectors, the SMA energy dissipation steel bars are located in a reserved PVC pipeline; then the PVC pipeline sequentially and downwards penetrates through a steel base plate, a rubber pad, the steel base plate and a hole channel reserved in a bearing platform from a
plastic hinge area of the bottom section; and finally the
tail ends of the SMA energy dissipation steel bars are anchored to an anchoring device in the bearing platform. The structure has the advantages of being high in energy dissipation capacity, high in self-resetting capacity, small in residual displacement, small in
pier bottom concrete damage and the like, and is suitable for being popularized and used in medium and
high intensity areas.