Abstract
It is always an argument whether we can predict failure mode and hysteretic behavior of a prototype structure based on a scaled model. In this study, effect of maximum aggregate size, evaluation of rebar section area and difference of reinforcing bar strength on the seismic performance of reinforced concrete bridge columns was investigated based on a response loading for a 5/36 scaled model (S-4 column) of a full scale column (C1-5 column). It is shown that progress of failure of core concrete is less significant in a scaled model than C1-5 column. It is also shown that the scaled model column S-4 provide about 7% higher moment capacity than C1-5 column because of the smaller progress of failure in the scaled model column.