抄録
The bi-axial behavior due to three-dimensional motions of earthquake and the eccentricity of the structure is shown in structures at the earthquake. At first, we investigate the intensity of the sub-directional motion crossed to the strongest directional motions from some strong earthquake records. Then, we calculate the maximum inelastic response of eccentric reinforced concrete piers for bridges subjected to bi-directional motions expressed. As a result of this study, the intensity of the sub-directional motion is important in order to estmate the inelastic response and the damage of concrete piers.
