Cyclic loading tests on RC bridge column specimens using deformed bars and round bars respectively were conducted and their seismic performance on failure mechanism and hysteretic characteristics of RC bridge column using round bars was discussed. The conclusions obtained from the range of the tests are shown below.(1) Rocking behavior of column occurs notably and concrete at the bottom of column is crushed due to rocking behavior of column in the specimen using round bars. (2) Above rocking behavior is mainly caused by slipping out of longitudinal rebar in footing. (3) Peak load of the specimen using round bars is slightly smaller than flexural capacity based on Bernoulli-Euler theory. Ductility is higher than specimen using deformed bars.
