Ultimate strength and ductility of state-of-the-art concrete-filled steel bridge piers in Japan

摘要: Briefly in this paper are described the difference local buckling modes between cross-sections of steel and composite (concrete-filled steel) columns, columns bridge piers buildings, structural details standard for piers, construction (bridge with columns), characteristics stiffness, ultimate strength ductility Japan. Reconstruction repair using reinforced concrete (RC) which collapsed or were damaged due to Hyogoken-Nanbu earthquake occurred on 17 January 1995, introduced. Future research needs also summarized developing more rational seismic design methods piers.