The invention discloses a
pier energy-dissipating and crushing-preventing structure internally provided with energy dissipating
steel plates and viscous-elastic material
layers. The structure is characterized in that the four sides of a
vulnerability area, namely, a bottom section, of a dry-joint section-assembled
pier are each provided with two ultra-
high performance concrete (UHPC) slabs, the viscous-elastic material
layers are arranged between the bottom section of the
pier and the UHPC slabs, the UHPC slabs and the bottom section are combined into a whole in the mode that prestress is applied through finish-rolled twisted steel, a
pipe is reserved between every two corresponding UHPC slabs, and the energy dissipating
steel plates are placed in the pipes. According to the pier energy-dissipating and crushing-preventing structure, it is prevented that the internal bottom section is crushed under exciting of the earthquake action through the UHPC slabs, and the energy dissipating
steel plates in the pipes are prevented from being corroded through the compact performance of the UHPC structure; meanwhile, buckling damage to the energy dissipating steel plates can be prevented through UHPC in the peripheries of the pipes, and the energy dissipating steel plates and the viscous-elastic material
layers are used for improving the energy dissipating capacity of the dry-joint section-assembled pier under exciting of the earthquake action. By means of the pier energy-dissipating and crushing-preventing structure, it can be guaranteed that the pier has good energy dissipating capacity under exciting of the earthquake action, the bottom section is prevented from being seriously crushed, and the pier is rapidly repaired.