Abstract
The present paper is concerned with the strength and ductility evaluation of steel bridge piers subjected to combined the axial force applied eccentrically and in-plane or out-of-plane cyclic lateral loading. In the analysis, a modified two-surface plasticity model is used to trace the inelastic cyclic characteristic of steel. Both the box-sectional and pipe-sectional piers are investigated. Analytical results show that there is a correction of hysteretic curves between the T-shaped and inverted L-shaped piers. Hence, many contributions to the T-shaped columns can be easily extended to the inverted L-shaped or eccentric columns.
