ABSTRACT
Steel bridge piers of high seismic performance and economical advantage are required in Japan especially after the Hyogo-ken Nambu Earthquake. Presented in this paper are a design concept and a numerical calculation on a newly developing multi-column pier system with high seismic performance for elevated bridges using plural standardized steel tubes for structural purpose. Fundamental behavior and adoptability of the multi pier system and its design concept are verified through FEM analysis.
